--- mod_logdb.erl.orig	2009-02-05 19:21:29.000000000 +0200
+++ mod_logdb.erl	2009-02-05 19:19:51.000000000 +0200
@@ -0,0 +1,2094 @@
+%%%----------------------------------------------------------------------
+%%% File    : mod_logdb.erl
+%%% Author  : Oleg Palij (mailto,xmpp:o.palij@gmail.com)
+%%% Purpose : Frontend for log user messages to db
+%%% Version : trunk
+%%% Id      : $Id: mod_logdb.erl 1272 2009-02-05 17:16:20Z malik $
+%%% Url     : http://www.dp.uz.gov.ua/o.palij/mod_logdb/
+%%%----------------------------------------------------------------------
+
+-module(mod_logdb).
+-author('o.palij@gmail.com').
+
+-behaviour(gen_server).
+-behaviour(gen_mod).
+
+% supervisor
+-export([start_link/2]).
+% gen_mod
+-export([start/2,stop/1]).
+% gen_server
+-export([code_change/3,handle_call/3,handle_cast/2,handle_info/2,init/1,terminate/2]).
+% hooks
+-export([send_packet/3, receive_packet/4, offline_packet/3, remove_user/2]).
+-export([get_local_identity/5,
+         get_local_features/5, 
+         get_local_items/5,
+         adhoc_local_items/4,
+         adhoc_local_commands/4
+%         get_sm_identity/5,
+%         get_sm_features/5,
+%         get_sm_items/5,
+%         adhoc_sm_items/4,
+%         adhoc_sm_commands/4]).
+        ]).
+% ejabberdctl
+-export([rebuild_stats/3,
+         copy_messages/1, copy_messages_ctl/3, copy_messages_int_tc/1]).
+%
+-export([get_vhost_stats/1, get_vhost_stats_at/2,
+         get_user_stats/2, get_user_messages_at/3,
+         get_dates/1,
+         sort_stats/1,
+         convert_timestamp/1, convert_timestamp_brief/1,
+         get_user_settings/2, set_user_settings/3,
+         user_messages_at_parse_query/4, user_messages_parse_query/3,
+         vhost_messages_parse_query/2, vhost_messages_at_parse_query/4,
+         list_to_bool/1, bool_to_list/1,
+         list_to_string/1, string_to_list/1,
+         get_module_settings/1, set_module_settings/2,
+         purge_old_records/2]).
+% webadmin hooks
+-export([webadmin_menu/3,
+         webadmin_user/4,
+         webadmin_page/3,
+         user_parse_query/5]).
+% webadmin queries
+-export([vhost_messages_stats/3,
+         vhost_messages_stats_at/4,
+         user_messages_stats/4,
+         user_messages_stats_at/5]).
+
+-include("mod_logdb.hrl").
+-include("ejabberd.hrl").
+-include("mod_roster.hrl").
+-include("jlib.hrl").
+-include("ejabberd_ctl.hrl").
+-include("adhoc.hrl").
+-include("web/ejabberd_web_admin.hrl").
+-include("web/ejabberd_http.hrl").
+
+-define(PROCNAME, ejabberd_mod_logdb).
+% gen_server call timeout
+-define(CALL_TIMEOUT, 10000).
+
+-record(state, {vhost, dbmod, backendPid, monref, purgeRef, pollRef, dbopts, dbs, dolog_default, ignore_jids, groupchat, purge_older_days, poll_users_settings, drop_messages_on_user_removal}).
+
+ets_settings_table(VHost) -> list_to_atom("ets_logdb_settings_" ++ VHost).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_mod/gen_server callbacks
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% ejabberd starts module
+start(VHost, Opts) ->
+    ChildSpec =
+        {gen_mod:get_module_proc(VHost, ?PROCNAME),
+         {?MODULE, start_link, [VHost, Opts]},
+         permanent,
+         1000,
+         worker,
+         [?MODULE]},
+    % add child to ejabberd_sup
+    supervisor:start_child(ejabberd_sup, ChildSpec).
+
+% supervisor starts gen_server
+start_link(VHost, Opts) ->
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    {ok, Pid} = gen_server:start_link({local, Proc}, ?MODULE, [VHost, Opts], []),
+    Pid ! start,
+    {ok, Pid}.
+
+init([VHost, Opts]) ->
+    process_flag(trap_exit, true),
+    DBs = gen_mod:get_opt(dbs, Opts, [{mnesia, []}]),
+    VHostDB = gen_mod:get_opt(vhosts, Opts, [{VHost, mnesia}]),
+    % 10 is default becouse of using in clustered environment
+    PollUsersSettings = gen_mod:get_opt(poll_users_settings, Opts, 10),
+
+    {value,{_, DBName}} = lists:keysearch(VHost, 1, VHostDB),
+    {value, {DBName, DBOpts}} = lists:keysearch(DBName, 1, DBs),
+
+    ?MYDEBUG("Starting mod_logdb for ~p with ~p backend", [VHost, DBName]),
+
+    DBMod = list_to_atom(atom_to_list(?MODULE) ++ "_" ++ atom_to_list(DBName)),
+
+    {ok, #state{vhost=VHost,
+                dbmod=DBMod,
+                dbopts=DBOpts,
+                % dbs used for convert messages from one backend to other
+                dbs=DBs,
+                dolog_default=gen_mod:get_opt(dolog_default, Opts, true),
+                drop_messages_on_user_removal=gen_mod:get_opt(drop_messages_on_user_removal, Opts, true),
+                ignore_jids=gen_mod:get_opt(ignore_jids, Opts, []),
+                groupchat=gen_mod:get_opt(groupchat, Opts, none),
+                purge_older_days=gen_mod:get_opt(purge_older_days, Opts, never),
+                poll_users_settings=PollUsersSettings}}.
+
+cleanup(#state{vhost=VHost} = State) ->
+    ?MYDEBUG("Stopping ~s for ~p", [?MODULE, VHost]),
+
+    %ets:delete(ets_settings_table(VHost)),
+
+    ejabberd_hooks:delete(remove_user, VHost, ?MODULE, remove_user, 90),
+    ejabberd_hooks:delete(user_send_packet, VHost, ?MODULE, send_packet, 90),
+    ejabberd_hooks:delete(user_receive_packet, VHost, ?MODULE, receive_packet, 90),
+    ejabberd_hooks:delete(offline_message_hook, VHost, ?MODULE, offline_packet, 10),
+    %ejabberd_hooks:delete(adhoc_sm_commands, VHost, ?MODULE, adhoc_sm_commands, 110),
+    %ejabberd_hooks:delete(adhoc_sm_items, VHost, ?MODULE, adhoc_sm_items, 110),
+    ejabberd_hooks:delete(adhoc_local_commands, VHost, ?MODULE, adhoc_local_commands, 110),
+    ejabberd_hooks:delete(adhoc_local_items, VHost, ?MODULE, adhoc_local_items, 110),
+    %ejabberd_hooks:delete(disco_sm_identity, VHost, ?MODULE, get_sm_identity, 110),
+    %ejabberd_hooks:delete(disco_sm_features, VHost, ?MODULE, get_sm_features, 110),
+    %ejabberd_hooks:delete(disco_sm_items, VHost, ?MODULE, get_sm_items, 110),
+    ejabberd_hooks:delete(disco_local_identity, VHost, ?MODULE, get_local_identity, 110),
+    ejabberd_hooks:delete(disco_local_features, VHost, ?MODULE, get_local_features, 110),
+    ejabberd_hooks:delete(disco_local_items, VHost, ?MODULE, get_local_items, 110),
+
+    ejabberd_hooks:delete(webadmin_menu_host, VHost, ?MODULE, webadmin_menu, 70),
+    ejabberd_hooks:delete(webadmin_user, VHost, ?MODULE, webadmin_user, 50),
+    ejabberd_hooks:delete(webadmin_page_host, VHost, ?MODULE, webadmin_page, 50),
+    ejabberd_hooks:delete(webadmin_user_parse_query, VHost, ?MODULE, user_parse_query, 50),
+
+    ?MYDEBUG("Removed hooks for ~p", [VHost]),
+
+    ejabberd_ctl:unregister_commands(VHost, [{"rebuild_stats", "rebuild mod_logdb module stats for vhost"}], ?MODULE, rebuild_stats),
+    Supported_backends = lists:flatmap(fun({Backend, _Opts}) ->
+                                            [atom_to_list(Backend), " "]
+                                       end, State#state.dbs),
+    ejabberd_ctl:unregister_commands(
+                           VHost,
+                           [{"copy_messages backend", "copy messages from backend to current backend. backends could be: " ++ Supported_backends }],
+                           ?MODULE, copy_messages_ctl),
+    ?MYDEBUG("Unregistered commands for ~p", [VHost]).
+
+stop(VHost) ->
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    %gen_server:call(Proc, {cleanup}),
+    %?MYDEBUG("Cleanup in stop finished!!!!", []),
+    %timer:sleep(10000),
+    ok = supervisor:terminate_child(ejabberd_sup, Proc),
+    ok = supervisor:delete_child(ejabberd_sup, Proc).
+
+handle_call({cleanup}, _From, State) ->
+    cleanup(State),
+    ?MYDEBUG("Cleanup finished!!!!!", []),
+    {reply, ok, State};
+handle_call({get_dates}, _From, #state{dbmod=DBMod, vhost=VHost}=State) ->
+    Reply = DBMod:get_dates(VHost),
+    {reply, Reply, State};
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% ejabberd_web_admin callbacks
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+handle_call({delete_messages_by_user_at, PMsgs, Date}, _From, #state{dbmod=DBMod, vhost=VHost}=State) ->
+    Reply = DBMod:delete_messages_by_user_at(VHost, PMsgs, Date),
+    {reply, Reply, State};
+handle_call({delete_all_messages_by_user_at, User, Date}, _From, #state{dbmod=DBMod, vhost=VHost}=State) ->
+    Reply = DBMod:delete_all_messages_by_user_at(User, VHost, Date),
+    {reply, Reply, State};
+handle_call({delete_messages_at, Date}, _From, #state{dbmod=DBMod, vhost=VHost}=State) ->
+    Reply = DBMod:delete_messages_at(VHost, Date),
+    {reply, Reply, State};
+handle_call({get_vhost_stats}, _From, #state{dbmod=DBMod, vhost=VHost}=State) ->
+    Reply = DBMod:get_vhost_stats(VHost),
+    {reply, Reply, State};
+handle_call({get_vhost_stats_at, Date}, _From, #state{dbmod=DBMod, vhost=VHost}=State) ->
+    Reply = DBMod:get_vhost_stats_at(VHost, Date),
+    {reply, Reply, State};
+handle_call({get_user_stats, User}, _From, #state{dbmod=DBMod, vhost=VHost}=State) ->
+    Reply = DBMod:get_user_stats(User, VHost),
+    {reply, Reply, State};
+handle_call({get_user_messages_at, User, Date}, _From, #state{dbmod=DBMod, vhost=VHost}=State) ->
+    Reply = DBMod:get_user_messages_at(User, VHost, Date),
+    {reply, Reply, State};
+handle_call({get_user_settings, User}, _From, #state{dbmod=_DBMod, vhost=VHost}=State) ->
+    Reply = case ets:match_object(ets_settings_table(VHost),
+                                  #user_settings{owner_name=User, _='_'}) of
+                 [Set] -> Set;
+                 _ -> #user_settings{owner_name=User,
+                                     dolog_default=State#state.dolog_default,
+                                     dolog_list=[],
+                                     donotlog_list=[]}
+            end,
+    {reply, Reply, State};
+% TODO: remove User ??
+handle_call({set_user_settings, User, GSet}, _From, #state{dbmod=DBMod, vhost=VHost}=State) ->
+    Set = GSet#user_settings{owner_name=User},
+    Reply =
+       case ets:match_object(ets_settings_table(VHost),
+                             #user_settings{owner_name=User, _='_'}) of
+            [Set] ->
+                ?MYDEBUG("Settings is equal", []),
+                ok;
+            _ ->
+                case DBMod:set_user_settings(User, VHost, Set) of
+                     error ->
+                       error;
+                     ok ->
+                       true = ets:insert(ets_settings_table(VHost), Set),
+                       ok
+                end
+       end,
+    {reply, Reply, State};
+handle_call({get_module_settings}, _From, State) ->
+    {reply, State, State};
+handle_call({set_module_settings, #state{purge_older_days=PurgeDays,
+                                         poll_users_settings=PollSec} = Settings},
+            _From,
+            #state{purgeRef=PurgeRefOld,
+                   pollRef=PollRefOld,
+                   purge_older_days=PurgeDaysOld,
+                   poll_users_settings=PollSecOld} = State) ->
+    PurgeRef = if
+                 PurgeDays == never, PurgeDaysOld /= never  ->
+                    {ok, cancel} = timer:cancel(PurgeRefOld),
+                    disabled;
+                 is_integer(PurgeDays), PurgeDaysOld == never ->
+                    set_purge_timer(PurgeDays);
+                 true ->
+                    PurgeRefOld
+               end,
+
+    PollRef = if
+                PollSec == PollSecOld ->
+                   PollRefOld;
+                PollSec == 0, PollSecOld /= 0 ->
+                   {ok, cancel} = timer:cancel(PollRefOld),
+                   disabled;
+                is_integer(PollSec), PollSecOld == 0 ->
+                   set_poll_timer(PollSec);
+                is_integer(PollSec), PollSecOld /= 0 ->
+                   {ok, cancel} = timer:cancel(PollRefOld),
+                   set_poll_timer(PollSec)
+              end,
+
+    NewState = State#state{dolog_default=Settings#state.dolog_default,
+                           ignore_jids=Settings#state.ignore_jids,
+                           groupchat=Settings#state.groupchat,
+                           drop_messages_on_user_removal=Settings#state.drop_messages_on_user_removal,
+                           purge_older_days=PurgeDays,
+                           poll_users_settings=PollSec,
+                           purgeRef=PurgeRef,
+                           pollRef=PollRef},
+    {reply, ok, NewState};
+handle_call(Msg, _From, State) ->
+    ?INFO_MSG("Got call Msg: ~p, State: ~p", [Msg, State]),
+    {noreply, State}.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% end ejabberd_web_admin callbacks
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+% ejabberd_hooks call
+handle_cast({addlog, Direction, Owner, Peer, Packet}, #state{dbmod=DBMod, vhost=VHost}=State) ->
+    case filter(Owner, Peer, State) of
+         true ->
+              case catch packet_parse(Owner, Peer, Packet, Direction, State) of
+                   ignore ->
+                     ok;
+                   {'EXIT', Reason} ->
+                     ?ERROR_MSG("Failed to parse: ~p", [Reason]);
+                   Msg ->
+                     DBMod:log_message(VHost, Msg)
+              end;
+         false ->
+              ok
+    end,
+    {noreply, State};
+handle_cast({remove_user, User}, #state{dbmod=DBMod, vhost=VHost}=State) ->
+    case State#state.drop_messages_on_user_removal of
+         true ->
+           DBMod:drop_user(User, VHost),
+           ?INFO_MSG("Launched ~s@~s removal", [User, VHost]);
+         false ->
+           ?INFO_MSG("Message removing is disabled. Keeping messages for ~s@~s", [User, VHost])
+    end,
+    {noreply, State};
+% ejabberdctl rebuild_stats/3
+handle_cast({rebuild_stats}, #state{dbmod=DBMod, vhost=VHost}=State) ->
+    DBMod:rebuild_stats(VHost),
+    {noreply, State};
+handle_cast({copy_messages, Backend}, State) ->
+    spawn(?MODULE, copy_messages, [[State, Backend]]),
+    {noreply, State};
+handle_cast({copy_messages, Backend, Date}, State) ->
+    spawn(?MODULE, copy_messages, [[State, Backend, Date]]),
+    {noreply, State};
+handle_cast(Msg, State) ->
+    ?INFO_MSG("Got cast Msg:~p, State:~p", [Msg, State]),
+    {noreply, State}.
+
+% return: disabled | timer reference
+set_purge_timer(PurgeDays) ->
+    case PurgeDays of
+         never -> disabled;
+         Days when is_integer(Days) ->
+              {ok, Ref1} = timer:send_interval(timer:hours(24), scheduled_purging),
+              Ref1
+    end.
+
+% return: disabled | timer reference
+set_poll_timer(PollSec) ->
+    if
+      PollSec > 0 ->
+        {ok, Ref2} = timer:send_interval(timer:seconds(PollSec), poll_users_settings),
+        Ref2;
+      % db polling disabled
+      PollSec == 0 ->
+        disabled;
+      true ->
+        {ok, Ref3} = timer:send_interval(timer:seconds(10), poll_users_settings),
+        Ref3
+    end.
+
+% actual starting of logging
+% from timer:send_after (in init)
+handle_info(start, #state{dbmod=DBMod, vhost=VHost}=State) ->
+    case DBMod:start(VHost, State#state.dbopts) of
+         {error,{already_started,_}} ->
+           ?MYDEBUG("backend module already started - trying to stop it", []),
+           DBMod:stop(VHost),
+           {stop, already_started, State};
+         {error, Reason} ->
+           timer:sleep(30000),
+           ?ERROR_MSG("Failed to start: ~p", [Reason]),
+           {stop, db_connection_failed, State};
+         {ok, SPid} ->
+           ?INFO_MSG("~p connection established", [DBMod]),
+           
+           MonRef = erlang:monitor(process, SPid),
+
+           ets:new(ets_settings_table(VHost), [named_table,public,set,{keypos, #user_settings.owner_name}]),
+           {ok, DoLog} = DBMod:get_users_settings(VHost),
+           ets:insert(ets_settings_table(VHost), DoLog),
+
+           TrefPurge = set_purge_timer(State#state.purge_older_days),
+           TrefPoll = set_poll_timer(State#state.poll_users_settings),
+
+           ejabberd_hooks:add(remove_user, VHost, ?MODULE, remove_user, 90),
+           ejabberd_hooks:add(user_send_packet, VHost, ?MODULE, send_packet, 90),
+           ejabberd_hooks:add(user_receive_packet, VHost, ?MODULE, receive_packet, 90),
+           ejabberd_hooks:add(offline_message_hook, VHost, ?MODULE, offline_packet, 10),
+
+           ejabberd_hooks:add(disco_local_items, VHost, ?MODULE, get_local_items, 110),
+           ejabberd_hooks:add(disco_local_features, VHost, ?MODULE, get_local_features, 110),
+           ejabberd_hooks:add(disco_local_identity, VHost, ?MODULE, get_local_identity, 110),
+           %ejabberd_hooks:add(disco_sm_items, VHost, ?MODULE, get_sm_items, 110),
+           %ejabberd_hooks:add(disco_sm_features, VHost, ?MODULE, get_sm_features, 110),
+           %ejabberd_hooks:add(disco_sm_identity, VHost, ?MODULE, get_sm_identity, 110),
+           ejabberd_hooks:add(adhoc_local_items, VHost, ?MODULE, adhoc_local_items, 110),
+           ejabberd_hooks:add(adhoc_local_commands, VHost, ?MODULE, adhoc_local_commands, 110),
+           %ejabberd_hooks:add(adhoc_sm_items, VHost, ?MODULE, adhoc_sm_items, 110),
+           %ejabberd_hooks:add(adhoc_sm_commands, VHost, ?MODULE, adhoc_sm_commands, 110),
+
+           ejabberd_hooks:add(webadmin_menu_host, VHost, ?MODULE, webadmin_menu, 70),
+           ejabberd_hooks:add(webadmin_user, VHost, ?MODULE, webadmin_user, 50),
+           ejabberd_hooks:add(webadmin_page_host, VHost, ?MODULE, webadmin_page, 50),
+           ejabberd_hooks:add(webadmin_user_parse_query, VHost, ?MODULE, user_parse_query, 50),
+
+           ?MYDEBUG("Added hooks for ~p", [VHost]),
+
+           ejabberd_ctl:register_commands(
+                           VHost,
+                           [{"rebuild_stats", "rebuild mod_logdb module stats for vhost"}],
+                           ?MODULE, rebuild_stats),
+           Supported_backends = lists:flatmap(fun({Backend, _Opts}) ->
+                                                  [atom_to_list(Backend), " "]
+                                              end, State#state.dbs),
+           ejabberd_ctl:register_commands(
+                           VHost,
+                           [{"copy_messages backend", "copy messages from backend to current backend. backends could be: " ++ Supported_backends }],
+                           ?MODULE, copy_messages_ctl),
+           ?MYDEBUG("Registered commands for ~p", [VHost]),
+
+           NewState=State#state{monref = MonRef, backendPid=SPid, purgeRef=TrefPurge, pollRef=TrefPoll},
+           {noreply, NewState};
+        Rez ->
+           ?ERROR_MSG("Rez=~p", [Rez]),
+           timer:sleep(30000),
+           {stop, db_connection_failed, State}
+    end;
+% from timer:send_interval/2 (in start handle_info)
+handle_info(scheduled_purging, #state{vhost=VHost, purge_older_days=Days} = State) ->
+    ?MYDEBUG("Starting scheduled purging of old records for ~p", [VHost]),
+    spawn(?MODULE, purge_old_records, [VHost, integer_to_list(Days)]),
+    {noreply, State};
+% from timer:send_interval/2 (in start handle_info)
+handle_info(poll_users_settings, #state{dbmod=DBMod, vhost=VHost}=State) ->
+    {ok, DoLog} = DBMod:get_users_settings(VHost),
+    ?MYDEBUG("DoLog=~p", [DoLog]),
+    true = ets:delete_all_objects(ets_settings_table(VHost)),
+    ets:insert(ets_settings_table(VHost), DoLog),
+    {noreply, State};
+handle_info({'DOWN', _MonitorRef, process, _Pid, _Info}, State) ->
+    {stop, db_connection_dropped, State};
+handle_info({fetch_result, _, _}, State) ->
+    ?MYDEBUG("Got timed out mysql fetch result", []),
+    {noreply, State};
+handle_info(Info, State) ->
+    ?INFO_MSG("Got Info:~p, State:~p", [Info, State]),
+    {noreply, State}.
+
+terminate(db_connection_failed, _State) ->
+    ok;
+terminate(db_connection_dropped, State) ->
+    ?MYDEBUG("Got terminate with db_connection_dropped", []),
+    cleanup(State),
+    ok;
+terminate(Reason, #state{monref=undefined} = State) ->
+    ?MYDEBUG("Got terminate with undefined monref.~nReason: ~p", [Reason]),
+    cleanup(State),
+    ok;
+terminate(Reason, #state{dbmod=DBMod, vhost=VHost, monref=MonRef, backendPid=Pid} = State) ->
+    ?INFO_MSG("Reason: ~p", [Reason]),
+    case erlang:is_process_alive(Pid) of
+         true ->
+           erlang:demonitor(MonRef, [flush]),
+           DBMod:stop(VHost);
+         false ->
+           ok
+    end,
+    cleanup(State),
+    ok.
+
+code_change(_OldVsn, State, _Extra) ->
+    {ok, State}.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% ejabberd_hooks callbacks
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% TODO: change to/from to list as sql stores it as list
+send_packet(Owner, Peer, P) ->
+    VHost = Owner#jid.lserver,
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    gen_server:cast(Proc, {addlog, to, Owner, Peer, P}).
+
+offline_packet(Peer, Owner, P) ->
+    VHost = Owner#jid.lserver,
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    gen_server:cast(Proc, {addlog, from, Owner, Peer, P}).
+
+receive_packet(_JID, Peer, Owner, P) -> 
+    VHost = Owner#jid.lserver,
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    gen_server:cast(Proc, {addlog, from, Owner, Peer, P}).
+
+remove_user(User, Server) ->
+    LUser = jlib:nodeprep(User),
+    LServer = jlib:nameprep(Server),
+    Proc = gen_mod:get_module_proc(LServer, ?PROCNAME),
+    gen_server:cast(Proc, {remove_user, LUser}).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% ejabberdctl
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+rebuild_stats(_Val, VHost, ["rebuild_stats"]) ->
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    gen_server:cast(Proc, {rebuild_stats}),
+    {stop, ?STATUS_SUCCESS};
+rebuild_stats(Val, _VHost, _Args) ->
+    Val.
+
+copy_messages_ctl(_Val, VHost, ["copy_messages", Backend]) ->
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    gen_server:cast(Proc, {copy_messages, Backend}),
+    {stop, ?STATUS_SUCCESS};
+copy_messages_ctl(_Val, VHost, ["copy_messages", Backend, Date]) ->
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    gen_server:cast(Proc, {copy_messages, Backend, Date}),
+    {stop, ?STATUS_SUCCESS};
+copy_messages_ctl(Val, _VHost, _Args) ->
+    Val.
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% misc operations
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+% handle_cast({addlog, E}, _)
+% raw packet -> #msg
+packet_parse(Owner, Peer, Packet, Direction, State) ->
+    case xml:get_subtag(Packet, "body") of
+         false ->
+           ignore;
+         Body_xml ->
+           Message_type =
+              case xml:get_tag_attr_s("type", Packet) of
+                   [] -> "normal";
+                   MType -> MType
+              end,
+
+           case Message_type of
+                "groupchat" when State#state.groupchat == send, Direction == to ->
+                   ok;
+                "groupchat" when State#state.groupchat == send, Direction == from ->
+                   throw(ignore);
+                "groupchat" when State#state.groupchat == half ->
+                   Rooms = ets:match(muc_online_room, '$1'),
+                   Ni=lists:foldl(fun([{muc_online_room, {GName, GHost}, Pid}], Names) ->
+                                   case gen_fsm:sync_send_all_state_event(Pid, {get_jid_nick,Owner}) of
+                                        [] -> Names;
+                                        Nick -> 
+                                           lists:append(Names, [jlib:jid_to_string({GName, GHost, Nick})])
+                                   end
+                                  end, [], Rooms),
+                   case lists:member(jlib:jid_to_string(Peer), Ni) of
+                        true when Direction == from ->
+                          throw(ignore);
+                        _ ->
+                          ok
+                   end;
+                "groupchat" when State#state.groupchat == none ->
+                   throw(ignore);
+                _ ->
+                   ok
+           end,
+
+           Message_body = xml:get_tag_cdata(Body_xml),
+           Message_subject =
+              case xml:get_subtag(Packet, "subject") of
+                   false ->
+                     "";
+                   Subject_xml ->
+                     xml:get_tag_cdata(Subject_xml)
+              end,
+
+           OwnerName = stringprep:tolower(Owner#jid.user),
+           PName = stringprep:tolower(Peer#jid.user),
+           PServer = stringprep:tolower(Peer#jid.server),
+           PResource = Peer#jid.resource,
+
+           #msg{timestamp=get_timestamp(),
+                owner_name=OwnerName,
+                peer_name=PName,
+                peer_server=PServer,
+                peer_resource=PResource,
+                direction=Direction,
+                type=Message_type,
+                subject=Message_subject,
+                body=Message_body}
+    end.
+
+% called from handle_cast({addlog, _}, _) -> true (log messages) | false (do not log messages)
+filter(Owner, Peer, State) ->
+    OwnerStr = Owner#jid.luser++"@"++Owner#jid.lserver,
+    OwnerServ = "@"++Owner#jid.lserver,
+    PeerStr = Peer#jid.luser++"@"++Peer#jid.lserver,
+    PeerServ = "@"++Peer#jid.lserver,
+
+    LogTo = case ets:match_object(ets_settings_table(State#state.vhost),
+                                  #user_settings{owner_name=Owner#jid.luser, _='_'}) of
+                 [#user_settings{dolog_default=Default,
+                                 dolog_list=DLL,
+                                 donotlog_list=DNLL}] ->
+                      A = lists:member(PeerStr, DLL),
+                      B = lists:member(PeerStr, DNLL),
+                      if
+                        A -> true;
+                        B -> false;
+                        Default == true -> true;
+                        Default == false -> false;
+                        true -> State#state.dolog_default
+                      end;
+                 _ -> State#state.dolog_default
+	    end,
+
+    lists:all(fun(O) -> O end, 
+              [not lists:member(OwnerStr, State#state.ignore_jids),
+               not lists:member(PeerStr, State#state.ignore_jids),
+               not lists:member(OwnerServ, State#state.ignore_jids),
+               not lists:member(PeerServ, State#state.ignore_jids),
+               LogTo]).
+
+purge_old_records(VHost, Days) ->
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+
+    Dates = ?MODULE:get_dates(VHost),
+    DateNow = calendar:datetime_to_gregorian_seconds({date(), {0,0,1}}),
+    DateDiff = list_to_integer(Days)*24*60*60,
+    ?MYDEBUG("Purging tables older than ~s days", [Days]),
+    lists:foreach(fun(Date) ->
+                    {ok, [Year, Month, Day]} = regexp:split(Date, "[^0-9]+"),
+                    DateInSec = calendar:datetime_to_gregorian_seconds({{list_to_integer(Year), list_to_integer(Month), list_to_integer(Day)}, {0,0,1}}),
+                    if
+                     (DateNow - DateInSec) > DateDiff ->
+                        gen_server:call(Proc, {delete_messages_at, Date});
+                     true -> 
+                        ?MYDEBUG("Skipping messages at ~p", [Date])
+                    end
+              end, Dates).
+
+% called from get_vhost_stats/2, get_user_stats/3
+sort_stats(Stats) ->
+    % Stats = [{"2003-4-15",1}, {"2006-8-18",1}, ... ]
+    CFun = fun({TableName, Count}) ->
+                 {ok, [Year, Month, Day]} = regexp:split(TableName, "[^0-9]+"),
+                 { calendar:datetime_to_gregorian_seconds({{list_to_integer(Year), list_to_integer(Month), list_to_integer(Day)}, {0,0,1}}), Count }
+           end,
+    % convert to [{63364377601,1}, {63360662401,1}, ... ]
+    CStats = lists:map(CFun, Stats),
+    % sort by date
+    SortedStats = lists:reverse(lists:keysort(1, CStats)),
+    % convert to [{"2007-12-9",1}, {"2007-10-27",1}, ... ] sorted list
+    [{mod_logdb:convert_timestamp_brief(TableSec), Count} || {TableSec, Count} <- SortedStats].
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% Date/Time operations
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% return float seconds elapsed from "zero hour" as list
+get_timestamp() ->
+    {MegaSec, Sec, MicroSec} = now(),
+    [List] = io_lib:format("~.5f", [MegaSec*1000000 + Sec + MicroSec/1000000]),
+    List.
+
+% convert float seconds elapsed from "zero hour" to local time "%Y-%m-%d %H:%M:%S" string
+convert_timestamp(Seconds) when is_list(Seconds) ->
+    case string:to_float(Seconds++".0") of
+         {F,_} when is_float(F) -> convert_timestamp(F);
+         _ -> erlang:error(badarg, [Seconds])
+    end;
+convert_timestamp(Seconds) when is_float(Seconds) ->
+    GregSec = trunc(Seconds + 719528*86400),
+    UnivDT = calendar:gregorian_seconds_to_datetime(GregSec),
+    {{Year, Month, Day},{Hour, Minute, Sec}} = calendar:universal_time_to_local_time(UnivDT),
+    integer_to_list(Year) ++ "-" ++ integer_to_list(Month) ++ "-" ++ integer_to_list(Day) ++ " " ++ integer_to_list(Hour) ++ ":" ++ integer_to_list(Minute) ++ ":" ++ integer_to_list(Sec).
+
+% convert float seconds elapsed from "zero hour" to local time "%Y-%m-%d" string
+convert_timestamp_brief(Seconds) when is_list(Seconds) ->
+    convert_timestamp_brief(list_to_float(Seconds));
+convert_timestamp_brief(Seconds) when is_float(Seconds) ->
+    GregSec = trunc(Seconds + 719528*86400),
+    UnivDT = calendar:gregorian_seconds_to_datetime(GregSec),
+    {{Year, Month, Day},{_Hour, _Minute, _Sec}} = calendar:universal_time_to_local_time(UnivDT),
+    integer_to_list(Year) ++ "-" ++ integer_to_list(Month) ++ "-" ++ integer_to_list(Day);
+convert_timestamp_brief(Seconds) when is_integer(Seconds) ->
+    {{Year, Month, Day},{_Hour, _Minute, _Sec}} = calendar:gregorian_seconds_to_datetime(Seconds),
+    integer_to_list(Year) ++ "-" ++ integer_to_list(Month) ++ "-" ++ integer_to_list(Day).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% DB operations (get)
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+get_vhost_stats(VHost) ->
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    gen_server:call(Proc, {get_vhost_stats}, ?CALL_TIMEOUT).
+
+get_vhost_stats_at(VHost, Date) ->
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    gen_server:call(Proc, {get_vhost_stats_at, Date}, ?CALL_TIMEOUT).
+
+get_user_stats(User, VHost) ->
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    gen_server:call(Proc, {get_user_stats, User}, ?CALL_TIMEOUT).
+
+get_user_messages_at(User, VHost, Date) ->
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    gen_server:call(Proc, {get_user_messages_at, User, Date}, ?CALL_TIMEOUT).
+
+get_dates(VHost) ->
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    gen_server:call(Proc, {get_dates}, ?CALL_TIMEOUT).
+
+get_user_settings(User, VHost) ->
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    gen_server:call(Proc, {get_user_settings, User}, ?CALL_TIMEOUT).
+
+set_user_settings(User, VHost, Set) ->
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    gen_server:call(Proc, {set_user_settings, User, Set}).
+
+get_module_settings(VHost) ->
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    gen_server:call(Proc, {get_module_settings}).
+
+set_module_settings(VHost, Settings) ->
+    Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+    gen_server:call(Proc, {set_module_settings, Settings}).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% Web admin callbacks (delete)
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+user_messages_at_parse_query(VHost, Date, Msgs, Query) ->
+    case lists:keysearch("delete", 1, Query) of
+         {value, _} ->
+             PMsgs = lists:filter(
+                              fun(Msg) ->
+                                   ID = jlib:encode_base64(binary_to_list(term_to_binary(Msg#msg.timestamp))),
+                                   lists:member({"selected", ID}, Query)
+                              end, Msgs),
+             Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+             gen_server:call(Proc, {delete_messages_by_user_at, PMsgs, Date}, ?CALL_TIMEOUT);
+         false ->
+             nothing
+    end.
+
+user_messages_parse_query(User, VHost, Query) ->
+    case lists:keysearch("delete", 1, Query) of
+         {value, _} ->
+             Dates = get_dates(VHost),
+             PDates = lists:filter(
+                              fun(Date) ->
+                                   ID = jlib:encode_base64(binary_to_list(term_to_binary(User++Date))),
+                                   lists:member({"selected", ID}, Query)
+                              end, Dates),
+             Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+             Rez = lists:foldl(
+                          fun(Date, Acc) ->
+                              lists:append(Acc,
+                                           [gen_server:call(Proc,
+                                                            {delete_all_messages_by_user_at, User, Date},
+                                                            ?CALL_TIMEOUT)])
+                          end, [], PDates),
+             case lists:member(error, Rez) of
+                  true ->
+                    error;
+                  false ->
+                    nothing
+             end;
+         false ->
+             nothing
+    end.
+
+vhost_messages_parse_query(VHost, Query) ->
+    case lists:keysearch("delete", 1, Query) of
+         {value, _} ->
+             Dates = get_dates(VHost),
+             PDates = lists:filter(
+                              fun(Date) ->
+                                   ID = jlib:encode_base64(binary_to_list(term_to_binary(VHost++Date))),
+                                   lists:member({"selected", ID}, Query)
+                              end, Dates),
+             Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+             Rez = lists:foldl(fun(Date, Acc) ->
+                                   lists:append(Acc, [gen_server:call(Proc,
+                                                                      {delete_messages_at, Date},
+                                                                      ?CALL_TIMEOUT)])
+                               end, [], PDates),
+             case lists:member(error, Rez) of
+                  true ->
+                    error;
+                  false ->
+                    nothing
+             end;
+         false ->
+             nothing
+    end.
+
+vhost_messages_at_parse_query(VHost, Date, Stats, Query) ->
+    case lists:keysearch("delete", 1, Query) of
+         {value, _} ->
+             PStats = lists:filter(
+                              fun({User, _Count}) ->
+                                   ID = jlib:encode_base64(binary_to_list(term_to_binary(User++VHost))),
+                                   lists:member({"selected", ID}, Query)
+                              end, Stats),
+             Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+             Rez = lists:foldl(fun({User, _Count}, Acc) ->
+                                   lists:append(Acc, [gen_server:call(Proc,
+                                                                      {delete_all_messages_by_user_at,
+                                                                       User, Date},
+                                                                      ?CALL_TIMEOUT)])
+                               end, [], PStats),
+             case lists:member(error, Rez) of
+                  true ->
+                    error;
+                  false ->
+                    ok
+             end;
+         false ->
+             nothing
+    end.
+
+copy_messages([#state{vhost=VHost}=State, From]) ->
+    ?INFO_MSG("Going to copy messages from ~p for ~p", [From, VHost]),
+
+    {FromDBName, FromDBOpts} =
+         case lists:keysearch(list_to_atom(From), 1, State#state.dbs) of
+              {value, {FN, FO}} ->
+                 {FN, FO};
+              false ->
+                 ?ERROR_MSG("Failed to find record for ~p in dbs", [From]),
+                 throw(error)
+         end,
+
+    FromDBMod = list_to_atom(atom_to_list(?MODULE) ++ "_" ++ atom_to_list(FromDBName)),
+
+    {ok, _FromPid} = FromDBMod:start(VHost, FromDBOpts),
+ 
+    Dates = FromDBMod:get_dates(VHost),
+    DatesLength = length(Dates),
+
+    lists:foldl(fun(Date, Acc) ->
+                   case copy_messages_int([FromDBMod, State#state.dbmod, VHost, Date]) of
+                        ok ->
+                          ?INFO_MSG("Copied messages at ~p (~p/~p)", [Date, Acc, DatesLength]);
+                        Value ->
+                          ?ERROR_MSG("Failed to copy messages at ~p (~p/~p): ~p", [Date, Acc, DatesLength, Value]),
+                          FromDBMod:stop(VHost),
+                          throw(error)
+                   end,
+                   Acc + 1
+                  end, 1, Dates),
+    ?INFO_MSG("Copied messages from ~p",  [From]),
+    FromDBMod:stop(VHost);
+copy_messages([#state{vhost=VHost}=State, From, Date]) ->
+    {value, {FromDBName, FromDBOpts}} = lists:keysearch(list_to_atom(From), 1, State#state.dbs),
+    FromDBMod = list_to_atom(atom_to_list(?MODULE) ++ "_" ++ atom_to_list(FromDBName)),
+    {ok, _FromPid} = FromDBMod:start(VHost, FromDBOpts),
+    case catch copy_messages_int([FromDBMod, State#state.dbmod, VHost, Date]) of
+         {'exit', Reason} ->
+           ?ERROR_MSG("Failed to copy messages at ~p: ~p", [Date, Reason]);
+         ok ->
+           ?INFO_MSG("Copied messages at ~p", [Date]);
+         Value ->
+           ?ERROR_MSG("Failed to copy messages at ~p: ~p", [Date, Value])
+    end,
+    FromDBMod:stop(VHost).
+
+copy_messages_int([FromDBMod, ToDBMod, VHost, Date]) ->
+    ets:new(mod_logdb_temp, [named_table, set, public]),
+    {Time, Value} = timer:tc(?MODULE, copy_messages_int_tc, [[FromDBMod, ToDBMod, VHost, Date]]),
+    ets:delete_all_objects(mod_logdb_temp),
+    ets:delete(mod_logdb_temp),
+    ?INFO_MSG("copy_messages at ~p elapsed ~p sec", [Date, Time/1000000]),
+    Value.
+
+copy_messages_int_tc([FromDBMod, ToDBMod, VHost, Date]) ->
+    ?INFO_MSG("Going to copy messages from ~p for ~p at ~p", [FromDBMod, VHost, Date]),
+   
+    ok = FromDBMod:rebuild_stats_at(VHost, Date),
+    catch mod_logdb:rebuild_stats_at(VHost, Date),
+    {ok, FromStats} = FromDBMod:get_vhost_stats_at(VHost, Date),
+    ToStats = case mod_logdb:get_vhost_stats_at(VHost, Date) of
+                   {ok, Stats} -> Stats;
+                   {error, _} -> []
+              end,
+
+    FromStatsS = lists:keysort(1, FromStats),
+    ToStatsS = lists:keysort(1, ToStats),
+
+    StatsLength = length(FromStats),
+
+    CopyFun = if
+                                                   % destination table is empty
+                FromDBMod /= mod_logdb_mnesia_old, ToStats == [] ->
+                    fun({User, _Count}, Acc) ->
+                        {ok, Msgs} = FromDBMod:get_user_messages_at(User, VHost, Date),
+                        MAcc =
+                          lists:foldl(fun(Msg, MFAcc) ->
+                                          ok = ToDBMod:log_message(VHost, Msg),
+                                          MFAcc + 1
+                                      end, 0, Msgs),
+                        NewAcc = Acc + 1,
+                        ?INFO_MSG("Copied ~p messages for ~p (~p/~p) at ~p", [MAcc, User, NewAcc, StatsLength, Date]),
+                        %timer:sleep(100),
+                        NewAcc
+                    end;
+                                                   % destination table is not empty
+                FromDBMod /= mod_logdb_mnesia_old, ToStats /= [] ->
+                    fun({User, _Count}, Acc) ->
+                        {ok, ToMsgs} = ToDBMod:get_user_messages_at(User, VHost, Date),
+                        lists:foreach(fun(#msg{timestamp=Tst}) when length(Tst) == 16 ->
+                                            ets:insert(mod_logdb_temp, {Tst});
+                                         % mysql, pgsql removes final zeros after decimal point
+                                         (#msg{timestamp=Tst}) when length(Tst) < 16 ->
+                                            {F, _} = string:to_float(Tst++".0"),
+                                            [T] = io_lib:format("~.5f", [F]),
+                                            ets:insert(mod_logdb_temp, {T})
+                                      end, ToMsgs),
+                        {ok, Msgs} = FromDBMod:get_user_messages_at(User, VHost, Date),
+                        MAcc =
+                          lists:foldl(fun(#msg{timestamp=ToTimestamp} = Msg, MFAcc) ->
+                                          case ets:member(mod_logdb_temp, ToTimestamp) of
+                                               false ->
+                                                  ok = ToDBMod:log_message(VHost, Msg),
+                                                  ets:insert(mod_logdb_temp, {ToTimestamp}),
+                                                  MFAcc + 1;
+                                               true ->
+                                                  MFAcc
+                                          end
+                                      end, 0, Msgs),
+                        NewAcc = Acc + 1,
+                        ets:delete_all_objects(mod_logdb_temp),
+                        ?INFO_MSG("Copied ~p messages for ~p (~p/~p) at ~p", [MAcc, User, NewAcc, StatsLength, Date]),
+                        %timer:sleep(100),
+                        NewAcc
+                    end;
+                % copying from mod_logmnesia
+                true ->
+                    fun({User, _Count}, Acc) ->
+                        ToStats =
+                           case ToDBMod:get_user_messages_at(User, VHost, Date) of
+                                {ok, []} ->
+                                  ok;
+                                {ok, ToMsgs} ->
+                                  lists:foreach(fun(#msg{timestamp=Tst}) when length(Tst) == 16 ->
+                                                     ets:insert(mod_logdb_temp, {Tst});
+                                                   % mysql, pgsql removes final zeros after decimal point
+                                                   (#msg{timestamp=Tst}) when length(Tst) < 15 ->
+                                                     {F, _} = string:to_float(Tst++".0"),
+                                                     [T] = io_lib:format("~.5f", [F]),
+                                                     ets:insert(mod_logdb_temp, {T})
+                                                end, ToMsgs);
+                                {error, _} ->
+                                  ok
+                           end,
+                        {ok, Msgs} = FromDBMod:get_user_messages_at(User, VHost, Date),
+
+                        MAcc =
+                          lists:foldl(
+                            fun({msg, TU, TS, TR, FU, FS, FR, Type, Subj, Body, Timest},
+                                MFAcc) ->
+                                  [Timestamp] = if is_float(Timest) == true ->
+                                                     io_lib:format("~.5f", [Timest]);
+                                                   % early versions of mod_logmnesia
+                                                   is_integer(Timest) == true ->
+                                                     io_lib:format("~.5f", [Timest-719528*86400.0]);
+                                                   true ->
+                                                     ?ERROR_MSG("Incorrect timestamp ~p", [Timest]),
+                                                     throw(error)
+                                                end,
+                                  case ets:member(mod_logdb_temp, Timestamp) of
+                                       false ->
+                                          if
+                                           % from
+                                           TS == VHost ->
+                                             TMsg = #msg{timestamp=Timestamp,
+                                                         owner_name=TU,
+                                                         peer_name=FU, peer_server=FS, peer_resource=FR,
+                                                         direction=from,
+                                                         type=Type,
+                                                         subject=Subj, body=Body},
+                                             ok = ToDBMod:log_message(VHost, TMsg);
+                                           true -> ok
+                                         end,
+                                         if
+                                           % to
+                                           FS == VHost ->
+                                             FMsg = #msg{timestamp=Timestamp,
+                                                         owner_name=FU,
+                                                         peer_name=TU, peer_server=TS, peer_resource=TR,
+                                                         direction=to,
+                                                         type=Type,
+                                                         subject=Subj, body=Body},
+                                             ok = ToDBMod:log_message(VHost, FMsg);
+                                           true -> ok
+                                         end,
+                                         ets:insert(mod_logdb_temp, {Timestamp}),
+                                         MFAcc + 1;
+                                       true -> % not ets:member
+                                          MFAcc
+                                   end % case
+                          end, 0, Msgs), % foldl
+                        NewAcc = Acc + 1,
+                        ?INFO_MSG("Copied ~p messages for ~p (~p/~p) at ~p", [MAcc, User, NewAcc, StatsLength, Date]),
+                        %timer:sleep(100),
+                        NewAcc
+                    end % fun
+              end, % if FromDBMod /= mod_logdb_mnesia_old
+
+    if
+      FromStats == [] ->
+        ?INFO_MSG("No messages were found at ~p", [Date]);
+      FromStatsS == ToStatsS ->
+        ?INFO_MSG("Stats are equal at ~p", [Date]);
+      FromStatsS /= ToStatsS ->
+        lists:foldl(CopyFun, 0, FromStats),
+        ok = ToDBMod:rebuild_stats_at(VHost, Date)
+        %timer:sleep(1000)
+    end,
+
+    ok.
+
+list_to_bool(Num) ->
+    case lists:member(Num, ["t", "true", "y", "yes", "1"]) of
+         true ->
+           true;
+         false ->
+           case lists:member(Num, ["f", "false", "n", "no", "0"]) of
+                true ->
+                  false;
+                false ->
+                  error
+           end
+    end.
+
+bool_to_list(true) ->
+    "TRUE";
+bool_to_list(false) ->
+    "FALSE".
+
+list_to_string([]) ->
+    "";
+list_to_string(List) when is_list(List) ->
+    Str = lists:flatmap(fun(Elm) -> Elm ++ "\n" end, List),
+    lists:sublist(Str, length(Str)-1).
+
+string_to_list(null) ->
+    [];
+string_to_list([]) ->
+    [];
+string_to_list(String) ->
+    {ok, List} = regexp:split(String, "\n"),
+    List.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% ad-hoc (copy/pasted from mod_configure.erl)
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+-define(ITEMS_RESULT(Allow, LNode, Fallback),
+    case Allow of
+        deny ->
+            Fallback;
+        allow ->
+            case get_local_items(LServer, LNode,
+                                 jlib:jid_to_string(To), Lang) of
+                {result, Res} ->
+                    {result, Res};
+                {error, Error} ->
+                    {error, Error}
+            end
+    end).
+
+get_local_items(Acc, From, #jid{lserver = LServer} = To, "", Lang) ->
+    case gen_mod:is_loaded(LServer, mod_adhoc) of
+        false ->
+            Acc;
+        _ ->
+            Items = case Acc of
+                         {result, Its} -> Its;
+                         empty -> []
+                    end,
+            AllowUser = acl:match_rule(LServer, mod_logdb, From),
+            AllowAdmin = acl:match_rule(LServer, mod_logdb_admin, From),
+            if
+              AllowUser == allow; AllowAdmin == allow ->
+                case get_local_items(LServer, [],
+                                     jlib:jid_to_string(To), Lang) of
+                     {result, Res} ->
+                        {result, Items ++ Res};
+                     {error, _Error} ->
+                        {result, Items}
+                end;
+              true ->
+                {result, Items}
+            end
+    end;
+get_local_items(Acc, From, #jid{lserver = LServer} = To, Node, Lang) ->
+    case gen_mod:is_loaded(LServer, mod_adhoc) of
+        false ->
+            Acc;
+        _ ->
+            LNode = string:tokens(Node, "/"),
+            AllowAdmin = acl:match_rule(LServer, mod_logdb_admin, From),
+            case LNode of
+                 ["mod_logdb"] ->
+                      ?ITEMS_RESULT(AllowAdmin, LNode, {error, ?ERR_FORBIDDEN});
+                 ["mod_logdb_users"] ->
+                      ?ITEMS_RESULT(AllowAdmin, LNode, {error, ?ERR_FORBIDDEN});
+                 ["mod_logdb_users", [$@ | _]] ->
+                      ?ITEMS_RESULT(AllowAdmin, LNode, {error, ?ERR_FORBIDDEN});
+                 ["mod_logdb_users", _User] ->
+                      ?ITEMS_RESULT(AllowAdmin, LNode, {error, ?ERR_FORBIDDEN});
+                 ["mod_logdb_settings"] ->
+                      ?ITEMS_RESULT(AllowAdmin, LNode, {error, ?ERR_FORBIDDEN});
+                 _ ->
+                      Acc
+            end
+    end.
+
+-define(NODE(Name, Node),
+        {xmlelement, "item",
+         [{"jid", Server},
+          {"name", translate:translate(Lang, Name)},
+          {"node", Node}], []}).
+
+get_local_items(_Host, [], Server, Lang) ->
+    {result,
+     [?NODE("Messages logging engine", "mod_logdb")]
+    };
+get_local_items(_Host, ["mod_logdb"], Server, Lang) ->
+    {result,
+     [?NODE("Messages logging engine users", "mod_logdb_users"),
+      ?NODE("Messages logging engine settings", "mod_logdb_settings")]
+    };
+get_local_items(Host, ["mod_logdb_users"], Server, Lang) ->
+    {result, get_all_vh_users(Host, Server, Lang)};
+get_local_items(_Host, ["mod_logdb_users", [$@ | Diap]], Server, Lang) ->
+    case catch ejabberd_auth:dirty_get_registered_users() of
+        {'EXIT', _Reason} ->
+            ?ERR_INTERNAL_SERVER_ERROR;
+        Users ->
+            SUsers = lists:sort([{S, U} || {U, S} <- Users]),
+            case catch begin
+                           {ok, [S1, S2]} = regexp:split(Diap, "-"),
+                           N1 = list_to_integer(S1),
+                           N2 = list_to_integer(S2),
+                           Sub = lists:sublist(SUsers, N1, N2 - N1 + 1),
+                           lists:map(fun({S, U}) ->
+                                      ?NODE(U ++ "@" ++ S, "mod_logdb_users/" ++ U ++ "@" ++ S)
+                                     end, Sub)
+                       end of
+                {'EXIT', _Reason} ->
+                    ?ERR_NOT_ACCEPTABLE;
+                Res ->
+                    {result, Res}
+            end
+    end;
+get_local_items(_Host, ["mod_logdb_users", _User], _Server, _Lang) ->
+    {result, []};
+get_local_items(_Host, ["mod_logdb_settings"], _Server, _Lang) ->
+    {result, []};
+get_local_items(_Host, Item, _Server, _Lang) ->
+    ?MYDEBUG("asked for items in ~p", [Item]),
+    {error, ?ERR_ITEM_NOT_FOUND}.
+
+-define(INFO_RESULT(Allow, Feats),
+    case Allow of
+        deny ->
+            {error, ?ERR_FORBIDDEN};
+        allow ->
+            {result, Feats}
+    end).
+
+get_local_features(Acc, From, #jid{lserver = LServer} = _To, Node, _Lang) ->
+    case gen_mod:is_loaded(LServer, mod_adhoc) of
+        false ->
+            Acc;
+        _ ->
+            LNode = string:tokens(Node, "/"),
+            AllowUser = acl:match_rule(LServer, mod_logdb, From),
+            AllowAdmin = acl:match_rule(LServer, mod_logdb_admin, From),
+            case LNode of
+                 ["mod_logdb"] when AllowUser == allow; AllowAdmin == allow ->
+                    ?INFO_RESULT(allow, [?NS_COMMANDS]);
+                 ["mod_logdb"] ->
+                    ?INFO_RESULT(deny, [?NS_COMMANDS]);
+                 ["mod_logdb_users"] ->
+                    ?INFO_RESULT(AllowAdmin, []);
+                 ["mod_logdb_users", [$@ | _]] ->
+                    ?INFO_RESULT(AllowAdmin, []);
+                 ["mod_logdb_users", _User] ->
+                    ?INFO_RESULT(AllowAdmin, [?NS_COMMANDS]);
+                 ["mod_logdb_settings"] ->
+                    ?INFO_RESULT(AllowAdmin, [?NS_COMMANDS]);
+                 [] ->
+                    Acc;
+                 _ ->
+                    %?MYDEBUG("asked for ~p features: ~p", [LNode, Allow]),
+                    Acc
+            end
+    end.
+
+-define(INFO_IDENTITY(Category, Type, Name, Lang),
+        [{xmlelement, "identity",
+          [{"category", Category},
+           {"type", Type},
+           {"name", translate:translate(Lang, Name)}], []}]).
+
+-define(INFO_COMMAND(Name, Lang),
+        ?INFO_IDENTITY("automation", "command-node", Name, Lang)).
+
+get_local_identity(Acc, _From, _To, Node, Lang) ->
+    LNode = string:tokens(Node, "/"),
+    case LNode of
+         ["mod_logdb"] ->
+            ?INFO_COMMAND("Messages logging engine", Lang);
+         ["mod_logdb_users"] ->
+            ?INFO_COMMAND("Messages logging engine users", Lang);
+         ["mod_logdb_users", [$@ | _]] ->
+            Acc;
+         ["mod_logdb_users", User] ->
+            ?INFO_COMMAND(User, Lang);
+         ["mod_logdb_settings"] ->
+            ?INFO_COMMAND("Messages logging engine settings", Lang);
+         [] ->
+            Acc;
+         _ ->
+            Acc
+    end.
+
+%get_sm_items(Acc, From, To, Node, Lang) ->
+%    ?MYDEBUG("get_sm_items Acc=~p From=~p To=~p Node=~p Lang=~p", [Acc, From, To, Node, Lang]),
+%    Acc.
+
+%get_sm_features(Acc, From, To, Node, Lang) ->
+%    ?MYDEBUG("get_sm_features Acc=~p From=~p To=~p Node=~p Lang=~p", [Acc, From, To, Node, Lang]),
+%    Acc.
+
+%get_sm_identity(Acc, From, To, Node, Lang) ->
+%    ?MYDEBUG("get_sm_identity Acc=~p From=~p To=~p Node=~p Lang=~p", [Acc, From, To, Node, Lang]),
+%    Acc.
+
+adhoc_local_items(Acc, From, #jid{lserver = LServer, server = Server} = To,
+                  Lang) ->
+    Items = case Acc of
+                {result, Its} -> Its;
+                empty -> []
+            end,
+    Nodes = recursively_get_local_items(LServer, "", Server, Lang),
+    Nodes1 = lists:filter(
+               fun(N) ->
+                        Nd = xml:get_tag_attr_s("node", N),
+                        F = get_local_features([], From, To, Nd, Lang),
+                        case F of
+                            {result, [?NS_COMMANDS]} ->
+                                true;
+                            _ ->
+                                false
+                        end
+               end, Nodes),
+    {result, Items ++ Nodes1}.
+
+recursively_get_local_items(_LServer, "mod_logdb_users", _Server, _Lang) ->
+    [];
+recursively_get_local_items(LServer, Node, Server, Lang) ->
+    LNode = string:tokens(Node, "/"),
+    Items = case get_local_items(LServer, LNode, Server, Lang) of
+                {result, Res} ->
+                    Res;
+                {error, _Error} ->
+                    []
+            end,
+    Nodes = lists:flatten(
+      lists:map(
+        fun(N) ->
+                S = xml:get_tag_attr_s("jid", N),
+                Nd = xml:get_tag_attr_s("node", N),
+                if (S /= Server) or (Nd == "") ->
+                    [];
+                true ->
+                    [N, recursively_get_local_items(
+                          LServer, Nd, Server, Lang)]
+                end
+        end, Items)),
+    Nodes.
+
+-define(COMMANDS_RESULT(Allow, From, To, Request),
+    case Allow of
+        deny ->
+            {error, ?ERR_FORBIDDEN};
+        allow ->
+            adhoc_local_commands(From, To, Request)
+    end).
+
+adhoc_local_commands(Acc, From, #jid{lserver = LServer} = To,
+                     #adhoc_request{node = Node} = Request) ->
+    LNode = string:tokens(Node, "/"),
+    AllowUser = acl:match_rule(LServer, mod_logdb, From),
+    AllowAdmin = acl:match_rule(LServer, mod_logdb_admin, From),
+    case LNode of
+         ["mod_logdb"] when AllowUser == allow; AllowAdmin == allow ->
+             ?COMMANDS_RESULT(allow, From, To, Request);
+         ["mod_logdb_users", _User] when AllowAdmin == allow ->
+             ?COMMANDS_RESULT(allow, From, To, Request);
+         ["mod_logdb_settings"] when AllowAdmin == allow ->
+             ?COMMANDS_RESULT(allow, From, To, Request);
+         _ ->
+             Acc
+    end.
+
+adhoc_local_commands(From, #jid{lserver = LServer} = _To,
+                     #adhoc_request{lang = Lang,
+                                    node = Node,
+                                    sessionid = SessionID,
+                                    action = Action,
+                                    xdata = XData} = Request) ->
+    LNode = string:tokens(Node, "/"),
+    %% If the "action" attribute is not present, it is
+    %% understood as "execute".  If there was no <actions/>
+    %% element in the first response (which there isn't in our
+    %% case), "execute" and "complete" are equivalent.
+    ActionIsExecute = lists:member(Action,
+                                   ["", "execute", "complete"]),
+    if  Action == "cancel" ->
+            %% User cancels request
+            adhoc:produce_response(
+              Request,
+              #adhoc_response{status = canceled});
+        XData == false, ActionIsExecute ->
+            %% User requests form
+            case get_form(LServer, LNode, From, Lang) of
+                {result, Form} ->
+                    adhoc:produce_response(
+                      Request,
+                      #adhoc_response{status = executing,
+                                      elements = Form});
+                {error, Error} ->
+                    {error, Error}
+            end;
+        XData /= false, ActionIsExecute ->
+            %% User returns form.
+            case jlib:parse_xdata_submit(XData) of
+                invalid ->
+                    {error, ?ERR_BAD_REQUEST};
+                Fields ->
+                    case set_form(From, LServer, LNode, Lang, Fields) of
+                        {result, _Res} ->
+                            adhoc:produce_response(
+                              #adhoc_response{lang = Lang,
+                                              node = Node,
+                                              sessionid = SessionID,
+                                              status = completed});
+                        {error, Error} ->
+                            {error, Error}
+                    end
+            end;
+        true ->
+            {error, ?ERR_BAD_REQUEST}
+    end.
+
+-define(LISTLINE(Label, Value),
+                 {xmlelement, "option", [{"label", Label}],
+                  [{xmlelement, "value", [], [{xmlcdata, Value}]}]}).
+-define(DEFVAL(Value), {xmlelement, "value", [], [{xmlcdata, Value}]}).
+
+get_user_form(LUser, LServer, Lang) ->
+    %From = jlib:jid_to_string(jlib:jid_remove_resource(Jid)),
+    #user_settings{dolog_default=DLD,
+                   dolog_list=DLL,
+                   donotlog_list=DNLL} = get_user_settings(LUser, LServer),
+    {result, [{xmlelement, "x", [{"xmlns", ?NS_XDATA}],
+               [{xmlelement, "title", [],
+                 [{xmlcdata,
+                   translate:translate(
+                     Lang, "Messages logging engine settings")}]},
+                {xmlelement, "instructions", [],
+                 [{xmlcdata,
+                   translate:translate(
+                     Lang, "Set logging preferences")++ ": " ++ LUser ++ "@" ++ LServer}]},
+                % default to log
+                {xmlelement, "field", [{"type", "list-single"},
+                                       {"label",
+                                        translate:translate(Lang, "Default")},
+                                       {"var", "dolog_default"}],
+                 [?DEFVAL(atom_to_list(DLD)),
+                  ?LISTLINE(translate:translate(Lang, "Log Messages"), "true"),
+                  ?LISTLINE(translate:translate(Lang, "Do Not Log Messages"), "false")
+                 ]},
+                % do log list
+                {xmlelement, "field", [{"type", "text-multi"},
+                                       {"label",
+                                        translate:translate(
+                                          Lang, "Log Messages")},
+                                       {"var", "dolog_list"}],
+                 [{xmlelement, "value", [], [{xmlcdata, list_to_string(DLL)}]}]},
+                % do not log list
+                {xmlelement, "field", [{"type", "text-multi"},
+                                       {"label",
+                                        translate:translate(
+                                          Lang, "Do Not Log Messages")},
+                                       {"var", "donotlog_list"}],
+                 [{xmlelement, "value", [], [{xmlcdata, list_to_string(DNLL)}]}]}
+             ]}]}.
+
+get_settings_form(Host, Lang) ->
+    #state{dbmod=DBMod,
+           dbs=DBs,
+           dolog_default=DLD,
+           ignore_jids=IgnoreJids,
+           groupchat=GroupChat,
+           purge_older_days=PurgeDaysT,
+           drop_messages_on_user_removal=MRemoval,
+           poll_users_settings=PollTime} = mod_logdb:get_module_settings(Host),
+
+    Backends = lists:map(fun({Backend, _Opts}) ->
+                             ?LISTLINE(atom_to_list(Backend), atom_to_list(Backend))
+                         end, DBs),
+    DB = lists:sublist(atom_to_list(DBMod), length(atom_to_list(?MODULE)) + 2, length(atom_to_list(DBMod))),
+    DBsL = lists:append([?DEFVAL(DB)], Backends),
+
+    PurgeDays =
+       case PurgeDaysT of
+            never -> "never";
+            Num when is_integer(Num) -> integer_to_list(Num);
+            _ -> "unknown"
+       end,
+    {result, [{xmlelement, "x", [{"xmlns", ?NS_XDATA}],
+               [{xmlelement, "title", [],
+                 [{xmlcdata,
+                   translate:translate(
+                     Lang, "Messages logging engine settings") ++ " (run-time)"}]},
+                {xmlelement, "instructions", [],
+                 [{xmlcdata,
+                   translate:translate(
+                     Lang, "Set run-time settings")}]},
+                % backends
+                {xmlelement, "field", [{"type", "list-single"},
+                                  {"label",
+                                      translate:translate(Lang, "Backend")},
+                                  {"var", "backend"}],
+                 DBsL},
+                % dbs
+                {xmlelement, "field", [{"type", "text-multi"},
+                                       {"label",
+                                        translate:translate(
+                                          Lang, "dbs")},
+                                       {"var", "dbs"}],
+                 [{xmlelement, "value", [], [{xmlcdata, lists:flatten(io_lib:format("~p.",[DBs]))}]}]},
+                % default to log
+                {xmlelement, "field", [{"type", "list-single"},
+                                       {"label",
+                                        translate:translate(Lang, "Default")},
+                                       {"var", "dolog_default"}],
+                 [?DEFVAL(atom_to_list(DLD)),
+                  ?LISTLINE(translate:translate(Lang, "Log Messages"), "true"),
+                  ?LISTLINE(translate:translate(Lang, "Do Not Log Messages"), "false")
+                 ]},
+                % drop_messages_on_user_removal
+                {xmlelement, "field", [{"type", "list-single"},
+                                       {"label",
+                                        translate:translate(Lang, "Drop messages on user removal")},
+                                       {"var", "drop_messages_on_user_removal"}],
+                 [?DEFVAL(atom_to_list(MRemoval)),
+                  ?LISTLINE(translate:translate(Lang, "Drop"), "true"),
+                  ?LISTLINE(translate:translate(Lang, "Do not drop"), "false")
+                 ]},
+                % groupchat
+                {xmlelement, "field", [{"type", "list-single"},
+                                       {"label",
+                                        translate:translate(Lang, "Groupchat messages logging")},
+                                       {"var", "groupchat"}],
+                 [?DEFVAL(atom_to_list(GroupChat)),
+                  ?LISTLINE("all", "all"),
+                  ?LISTLINE("none", "none"),
+                  ?LISTLINE("send", "send"),
+                  ?LISTLINE("half", "half")
+                 ]},
+                % ignore_jids
+                {xmlelement, "field", [{"type", "text-multi"},
+                                       {"label",
+                                        translate:translate(
+                                          Lang, "Jids/Domains to ignore")},
+                                       {"var", "ignore_list"}],
+                 [{xmlelement, "value", [], [{xmlcdata, list_to_string(IgnoreJids)}]}]},
+                % purge older days
+                {xmlelement, "field", [{"type", "text-single"},
+                                       {"label",
+                                        translate:translate(
+                                          Lang, "Purge messages older than (days)")},
+                                       {"var", "purge_older_days"}],
+                 [{xmlelement, "value", [], [{xmlcdata, PurgeDays}]}]},
+                % poll users settings
+                {xmlelement, "field", [{"type", "text-single"},
+                                       {"label",
+                                        translate:translate(
+                                          Lang, "Poll users settings (seconds)")},
+                                       {"var", "poll_users_settings"}],
+                 [{xmlelement, "value", [], [{xmlcdata, integer_to_list(PollTime)}]}]}
+             ]}]}.
+
+get_form(_Host, ["mod_logdb"], #jid{luser = LUser, lserver = LServer} = _Jid, Lang) ->
+    get_user_form(LUser, LServer, Lang);
+get_form(_Host, ["mod_logdb_users", User], _JidFrom, Lang) ->
+    #jid{luser=LUser, lserver=LServer} = jlib:string_to_jid(User),
+    get_user_form(LUser, LServer, Lang);
+get_form(Host, ["mod_logdb_settings"], _JidFrom, Lang) ->
+    get_settings_form(Host, Lang);
+get_form(_Host, Command, _, _Lang) ->
+    ?MYDEBUG("asked for form ~p", [Command]),
+    {error, ?ERR_SERVICE_UNAVAILABLE}.
+
+check_log_list([Head | Tail]) ->
+    case lists:member($@, Head) of
+         true -> ok;
+         false -> throw(error)
+    end,
+    % this check for Head to be valid jid
+    case jlib:string_to_jid(Head) of
+         error ->
+            throw(error);
+         _ ->
+            check_log_list(Tail)
+    end;
+check_log_list([]) ->
+    ok.
+
+check_ignore_list([Head | Tail]) ->
+    case lists:member($@, Head) of
+         true -> ok;
+         false -> throw(error)
+    end,
+    % this check for Head to be valid jid
+    case jlib:string_to_jid(Head) of
+         error ->
+            % this check for Head to be valid domain "@domain.org"
+            case lists:nth(1, Head) of
+                 $@ ->
+                    % TODO: this allows spaces and special characters in Head. May be change to nodeprep?
+                    case jlib:nameprep(lists:delete($@, Head)) of
+                         error -> throw(error);
+                         _ -> check_log_list(Tail)
+                    end;
+                 _ -> throw(error)
+            end;
+         _ ->
+            check_ignore_list(Tail)
+    end;
+check_ignore_list([]) ->
+    ok.
+
+parse_users_settings(XData) ->
+    DLD = case lists:keysearch("dolog_default", 1, XData) of
+               {value, {_, [String]}} when String == "true"; String == "false" -> 
+                 list_to_bool(String);
+               _ ->
+                 throw(bad_request)
+          end,
+    DLL = case lists:keysearch("dolog_list", 1, XData) of
+               false ->
+                 throw(bad_request);
+               {value, {_, [[]]}} ->
+                 [];
+               {value, {_, List1}} ->
+                 case catch check_log_list(List1) of
+                      error ->
+                         throw(bad_request);
+                      ok ->
+                         List1
+                 end
+          end,
+    DNLL = case lists:keysearch("donotlog_list", 1, XData) of
+               false ->
+                 throw(bad_request);
+               {value, {_, [[]]}} ->
+                 [];
+               {value, {_, List2}} ->
+                 case catch check_log_list(List2) of
+                      error ->
+                         throw(bad_request);
+                      ok ->
+                         List2
+                 end
+          end,
+    #user_settings{dolog_default=DLD,
+                   dolog_list=DLL,
+                   donotlog_list=DNLL}.
+
+parse_module_settings(XData) ->
+    DLD = case lists:keysearch("dolog_default", 1, XData) of
+               {value, {_, [Str1]}} when Str1 == "true"; Str1 == "false" ->
+                 list_to_bool(Str1);
+               _ ->
+                 throw(bad_request)
+          end,
+    MRemoval = case lists:keysearch("drop_messages_on_user_removal", 1, XData) of
+               {value, {_, [Str5]}} when Str5 == "true"; Str5 == "false" ->
+                 list_to_bool(Str5);
+               _ ->
+                 throw(bad_request)
+          end,
+    GroupChat = case lists:keysearch("groupchat", 1, XData) of
+                     {value, {_, [Str2]}} when Str2 == "none";
+                                               Str2 == "all";
+                                               Str2 == "send";
+                                               Str2 == "half" ->
+                       list_to_atom(Str2);
+                     _ ->
+                       throw(bad_request)
+                end,
+    Ignore = case lists:keysearch("ignore_list", 1, XData) of
+                  {value, {_, List}} ->
+                    case catch check_ignore_list(List) of
+                         ok ->
+                            List;
+                         error ->
+                            throw(bad_request)
+                    end;
+                  _ ->
+                    throw(bad_request)
+             end,
+    Purge = case lists:keysearch("purge_older_days", 1, XData) of
+                 {value, {_, ["never"]}} ->
+                   never;
+                 {value, {_, [Str3]}} ->
+                   case catch list_to_integer(Str3) of
+                        {'EXIT', {badarg, _}} -> throw(bad_request);
+                        Int1 -> Int1
+                   end;
+                 _ ->
+                   throw(bad_request)
+            end,
+    Poll = case lists:keysearch("poll_users_settings", 1, XData) of
+                {value, {_, [Str4]}} ->
+                  case catch list_to_integer(Str4) of
+                       {'EXIT', {badarg, _}} -> throw(bad_request);
+                       Int2 -> Int2
+                  end;
+                _ ->
+                  throw(bad_request)
+           end,
+    #state{dolog_default=DLD,
+           groupchat=GroupChat,
+           ignore_jids=Ignore,
+           purge_older_days=Purge,
+           drop_messages_on_user_removal=MRemoval,
+           poll_users_settings=Poll}.
+
+set_form(From, _Host, ["mod_logdb"], _Lang, XData) ->
+    #jid{luser=LUser, lserver=LServer} = From,
+    case catch parse_users_settings(XData) of
+         bad_request ->
+            {error, ?ERR_BAD_REQUEST};
+         UserSettings ->
+            case mod_logdb:set_user_settings(LUser, LServer, UserSettings) of
+                 ok ->
+                    {result, []};
+                 error ->
+                    {error, ?ERR_INTERNAL_SERVER_ERROR}
+            end
+    end;
+set_form(_From, _Host, ["mod_logdb_users", User], _Lang, XData) ->
+    #jid{luser=LUser, lserver=LServer} = jlib:string_to_jid(User),
+    case catch parse_users_settings(XData) of
+         bad_request -> {error, ?ERR_BAD_REQUEST};
+         UserSettings ->
+            case mod_logdb:set_user_settings(LUser, LServer, UserSettings) of
+                 ok ->
+                    {result, []};
+                 error ->
+                    {error, ?ERR_INTERNAL_SERVER_ERROR}
+            end
+    end;
+set_form(_From, Host, ["mod_logdb_settings"], _Lang, XData) ->
+    case catch parse_module_settings(XData) of
+         bad_request -> {error, ?ERR_BAD_REQUEST};
+         Settings ->
+            case mod_logdb:set_module_settings(Host, Settings) of
+                 ok ->
+                    {result, []};
+                 error ->
+                    {error, ?ERR_INTERNAL_SERVER_ERROR}
+            end
+    end;
+set_form(From, _Host, Node, _Lang, XData) ->
+    User = jlib:jid_to_string(jlib:jid_remove_resource(From)),
+    ?MYDEBUG("set form for ~p at ~p XData=~p", [User, Node, XData]),
+    {error, ?ERR_SERVICE_UNAVAILABLE}.
+
+%adhoc_sm_items(Acc, From, To, Request) ->
+%    ?MYDEBUG("adhoc_sm_items Acc=~p From=~p To=~p Request=~p", [Acc, From, To, Request]),
+%    Acc.
+
+%adhoc_sm_commands(Acc, From, To, Request) ->
+%    ?MYDEBUG("adhoc_sm_commands Acc=~p From=~p To=~p Request=~p", [Acc, From, To, Request]),
+%    Acc.
+
+get_all_vh_users(Host, Server, Lang) ->
+    case catch ejabberd_auth:get_vh_registered_users(Host) of
+        {'EXIT', _Reason} ->
+            [];
+        Users ->
+            SUsers = lists:sort([{S, U} || {U, S} <- Users]),
+            case length(SUsers) of
+                N when N =< 100 ->
+                    lists:map(fun({S, U}) ->
+                                      ?NODE(U ++ "@" ++ S, "mod_logdb_users/" ++ U ++ "@" ++ S)
+                              end, SUsers);
+                N ->
+                    NParts = trunc(math:sqrt(N * 0.618)) + 1,
+                    M = trunc(N / NParts) + 1,
+                    lists:map(fun(K) ->
+                                      L = K + M - 1,
+                                      Node =
+                                          "@" ++ integer_to_list(K) ++
+                                          "-" ++ integer_to_list(L),
+                                      {FS, FU} = lists:nth(K, SUsers),
+                                      {LS, LU} =
+                                          if L < N -> lists:nth(L, SUsers);
+                                             true -> lists:last(SUsers)
+                                          end,
+                                      Name =
+                                          FU ++ "@" ++ FS ++
+                                          " -- " ++
+                                          LU ++ "@" ++ LS,
+                                      ?NODE(Name, "mod_logdb_users/" ++ Node)
+                              end, lists:seq(1, N, M))
+            end
+    end.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% webadmin hooks
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+webadmin_menu(Acc, _Host, Lang) ->
+    [{"messages", ?T("Users Messages")} | Acc].
+
+webadmin_user(Acc, User, Server, Lang) ->
+    Sett = get_user_settings(User, Server),
+    Log =
+      case Sett#user_settings.dolog_default of
+           false ->
+              ?INPUTT("submit", "dolog", "Log Messages");
+           true ->
+              ?INPUTT("submit", "donotlog", "Do Not Log Messages");
+           _ -> []
+      end,
+    Acc ++ [?XE("h3", [?ACT("messages/", "Messages"), ?C(" "), Log])].
+
+webadmin_page(_, Host,
+              #request{path = ["messages"],
+                       q = Query,
+                       lang = Lang}) when is_list(Host) ->
+    Res = vhost_messages_stats(Host, Query, Lang),
+    {stop, Res};
+webadmin_page(_, Host,
+              #request{path = ["messages", Date],
+                       q = Query,
+                       lang = Lang}) when is_list(Host) ->
+    Res = vhost_messages_stats_at(Host, Query, Lang, Date),
+    {stop, Res};
+webadmin_page(_, Host,
+              #request{path = ["user", U, "messages"],
+                       q = Query,
+                       lang = Lang}) ->
+    Res = user_messages_stats(U, Host, Query, Lang),
+    {stop, Res};
+webadmin_page(_, Host,
+              #request{path = ["user", U, "messages", Date],
+                       q = Query,
+                       lang = Lang}) ->
+    Res = mod_logdb:user_messages_stats_at(U, Host, Query, Lang, Date),
+    {stop, Res};
+webadmin_page(Acc, _, _) -> Acc.
+
+user_parse_query(_, "dolog", User, Server, _Query) ->
+    Sett = get_user_settings(User, Server),
+    % TODO: check returned value
+    set_user_settings(User, Server, Sett#user_settings{dolog_default=true}),
+    {stop, ok};
+user_parse_query(_, "donotlog", User, Server, _Query) ->
+    Sett = get_user_settings(User, Server),
+    % TODO: check returned value
+    set_user_settings(User, Server, Sett#user_settings{dolog_default=false}),
+    {stop, ok};
+user_parse_query(Acc, _Action, _User, _Server, _Query) ->
+    Acc.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% webadmin funcs
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+vhost_messages_stats(Server, Query, Lang) ->
+    Res = case catch vhost_messages_parse_query(Server, Query) of
+                     {'EXIT', Reason} ->
+                         ?ERROR_MSG("~p", [Reason]),
+                         error;
+                     VResult -> VResult
+          end,
+    {Time, Value} = timer:tc(mod_logdb, get_vhost_stats, [Server]),
+    ?INFO_MSG("get_vhost_stats(~p) elapsed ~p sec", [Server, Time/1000000]),
+    %case get_vhost_stats(Server) of
+    case Value of
+         {'EXIT', CReason} ->
+              ?ERROR_MSG("Failed to get_vhost_stats: ~p", [CReason]),
+              [?XC("h1", ?T("Error occupied while fetching list"))];
+         {error, GReason} ->
+              ?ERROR_MSG("Failed to get_vhost_stats: ~p", [GReason]),
+              [?XC("h1", ?T("Error occupied while fetching list"))];
+         {ok, []} ->
+              [?XC("h1", ?T("No logged messages for ") ++ Server)];
+         {ok, Dates} ->
+              Fun = fun({Date, Count}) ->
+                         ID = jlib:encode_base64(binary_to_list(term_to_binary(Server++Date))),
+                         ?XE("tr",
+                          [?XE("td", [?INPUT("checkbox", "selected", ID)]),
+                           ?XE("td", [?AC(Date, Date)]),
+                           ?XC("td", integer_to_list(Count))
+                          ])
+                    end,
+              [?XC("h1", ?T("Logged messages for ") ++ Server)] ++
+               case Res of
+                    ok -> [?CT("Submitted"), ?P];
+                    error -> [?CT("Bad format"), ?P];
+                    nothing -> []
+               end ++
+               [?XAE("form", [{"action", ""}, {"method", "post"}],
+                [?XE("table",
+                 [?XE("thead",
+                  [?XE("tr",
+                   [?X("td"),
+                    ?XCT("td", "Date"),
+                    ?XCT("td", "Count")
+                   ])]),
+                  ?XE("tbody",
+                      lists:map(Fun, Dates)
+                     )]),
+                  ?BR,
+                  ?INPUTT("submit", "delete", "Delete Selected")
+                ])]
+   end.
+
+vhost_messages_stats_at(Server, Query, Lang, Date) ->
+   {Time, Value} = timer:tc(mod_logdb, get_vhost_stats_at, [Server, Date]),
+   ?INFO_MSG("get_vhost_stats_at(~p,~p) elapsed ~p sec", [Server, Date, Time/1000000]),
+   %case get_vhost_stats_at(Server, Date) of
+   case Value of
+        {'EXIT', CReason} ->
+             ?ERROR_MSG("Failed to get_vhost_stats_at: ~p", [CReason]),
+             [?XC("h1", ?T("Error occupied while fetching list"))];
+        {error, GReason} ->
+             ?ERROR_MSG("Failed to get_vhost_stats_at: ~p", [GReason]),
+             [?XC("h1", ?T("Error occupied while fetching list"))];
+        {ok, []} ->
+             [?XC("h1", ?T("No logged messages for ") ++ Server ++ ?T(" at ") ++ Date)];
+        {ok, Users} ->
+             Res = case catch vhost_messages_at_parse_query(Server, Date, Users, Query) of
+                        {'EXIT', Reason} ->
+                            ?ERROR_MSG("~p", [Reason]),
+                            error;
+                        VResult -> VResult
+                   end,
+             Fun = fun({User, Count}) ->
+                         ID = jlib:encode_base64(binary_to_list(term_to_binary(User++Server))),
+                         ?XE("tr",
+                          [?XE("td", [?INPUT("checkbox", "selected", ID)]),
+                           ?XE("td", [?AC("../user/"++User++"/messages/"++Date, User)]),
+                           ?XC("td", integer_to_list(Count))
+                          ])
+                   end,
+             [?XC("h1", ?T("Logged messages for ") ++ Server ++ ?T(" at ") ++ Date)] ++
+              case Res of
+                    ok -> [?CT("Submitted"), ?P];
+                    error -> [?CT("Bad format"), ?P];
+                    nothing -> []
+              end ++
+              [?XAE("form", [{"action", ""}, {"method", "post"}],
+                [?XE("table",
+                 [?XE("thead",
+                  [?XE("tr",
+                   [?X("td"),
+                    ?XCT("td", "User"),
+                    ?XCT("td", "Count")
+                   ])]),
+                  ?XE("tbody",
+                      lists:map(Fun, Users)
+                     )]),
+                  ?BR,
+                  ?INPUTT("submit", "delete", "Delete Selected")
+                ])]
+   end.
+
+user_messages_stats(User, Server, Query, Lang) ->
+    Jid = jlib:jid_to_string({User, Server, ""}),
+
+    Res = case catch user_messages_parse_query(User, Server, Query) of
+               {'EXIT', Reason} ->
+                    ?ERROR_MSG("~p", [Reason]),
+                    error;
+               VResult -> VResult
+          end,
+
+   {Time, Value} = timer:tc(mod_logdb, get_user_stats, [User, Server]),
+   ?INFO_MSG("get_user_stats(~p,~p) elapsed ~p sec", [User, Server, Time/1000000]),
+
+   case Value of
+        {'EXIT', CReason} ->
+            ?ERROR_MSG("Failed to get_user_stats: ~p", [CReason]),
+            [?XC("h1", ?T("Error occupied while fetching days"))];
+        {error, GReason} ->
+            ?ERROR_MSG("Failed to get_user_stats: ~p", [GReason]),
+            [?XC("h1", ?T("Error occupied while fetching days"))];
+        {ok, []} ->
+            [?XC("h1", ?T("No logged messages for ") ++ Jid)];
+        {ok, Dates} ->
+            Fun = fun({Date, Count}) ->
+                      ID = jlib:encode_base64(binary_to_list(term_to_binary(User++Date))),
+                      ?XE("tr",
+                       [?XE("td", [?INPUT("checkbox", "selected", ID)]),
+                        ?XE("td", [?AC(Date, Date)]),
+                        ?XC("td", integer_to_list(Count))
+                       ])
+                       %[?AC(Date, Date ++ " (" ++ integer_to_list(Count) ++ ")"), ?BR]
+                  end,
+            [?XC("h1", ?T("Logged messages for ") ++ Jid)] ++
+             case Res of
+                   ok -> [?CT("Submitted"), ?P];
+                   error -> [?CT("Bad format"), ?P];
+                   nothing -> []
+             end ++
+             [?XAE("form", [{"action", ""}, {"method", "post"}],
+              [?XE("table",
+               [?XE("thead",
+                [?XE("tr",
+                 [?X("td"),
+                  ?XCT("td", "Date"),
+                  ?XCT("td", "Count")
+                 ])]),
+                ?XE("tbody",
+                    lists:map(Fun, Dates)
+                   )]),
+                ?BR,
+                ?INPUTT("submit", "delete", "Delete Selected")
+              ])]
+    end.
+
+search_user_nick(User, List) ->
+    case lists:keysearch(User, 1, List) of
+         {value,{User, []}} ->
+           nothing;
+         {value,{User, Nick}} ->
+           Nick;
+         false ->
+           nothing
+    end.
+
+user_messages_stats_at(User, Server, Query, Lang, Date) ->
+   Jid = jlib:jid_to_string({User, Server, ""}),
+
+   {Time, Value} = timer:tc(mod_logdb, get_user_messages_at, [User, Server, Date]),
+   ?INFO_MSG("get_user_messages_at(~p,~p,~p) elapsed ~p sec", [User, Server, Date, Time/1000000]),
+   case Value of
+        {'EXIT', CReason} ->
+           ?ERROR_MSG("Failed to get_user_messages_at: ~p", [CReason]),
+           [?XC("h1", ?T("Error occupied while fetching messages"))];
+        {error, GReason} ->
+           ?ERROR_MSG("Failed to get_user_messages_at: ~p", [GReason]),
+           [?XC("h1", ?T("Error occupied while fetching messages"))];
+        {ok, []} ->
+           [?XC("h1", ?T("No logged messages for ") ++ Jid ++ ?T(" at ") ++ Date)];
+        {ok, User_messages} ->
+           Res =  case catch user_messages_at_parse_query(Server,
+                                                                    Date,
+                                                                    User_messages,
+                                                                    Query) of
+                       {'EXIT', Reason} ->
+                            ?ERROR_MSG("~p", [Reason]),
+                            error;
+                       VResult -> VResult
+                  end,
+
+           UR = ejabberd_hooks:run_fold(roster_get, Server, [], [{User, Server}]),
+           UserRoster =
+                 lists:map(fun(Item) ->
+                              {jlib:jid_to_string(Item#roster.jid), Item#roster.name}
+                           end, UR),
+
+           UniqUsers = lists:foldl(fun(#msg{peer_name=PName, peer_server=PServer}, List) ->
+                                 ToAdd = PName++"@"++PServer,
+                                 case lists:member(ToAdd, List) of
+                                      true -> List;
+                                      false -> lists:append([ToAdd], List)
+                                 end
+                               end, [], User_messages),
+
+           % Users to filter (sublist of UniqUsers)
+           CheckedUsers = case lists:keysearch("filter", 1, Query) of
+                           {value, _} ->
+                              lists:filter(fun(UFUser) ->
+                                                ID = jlib:encode_base64(binary_to_list(term_to_binary(UFUser))),
+                                                lists:member({"selected", ID}, Query)
+                                           end, UniqUsers);
+                           false -> []
+                         end,
+
+           % UniqUsers in html (noone selected -> everyone selected)
+           Users = lists:map(fun(UHUser) ->
+                                ID = jlib:encode_base64(binary_to_list(term_to_binary(UHUser))),
+                                Input = case lists:member(UHUser, CheckedUsers) of
+                                         true -> [?INPUTC("checkbox", "selected", ID)];
+                                         false when CheckedUsers == [] -> [?INPUTC("checkbox", "selected", ID)];
+                                         false -> [?INPUT("checkbox", "selected", ID)]
+                                        end,
+                                Nick =
+                                   case search_user_nick(UHUser, UserRoster) of
+                                        nothing -> "";
+                                        N -> " ("++ N ++")"
+                                   end,
+                                ?XE("tr",
+                                 [?XE("td", Input),
+                                  ?XC("td", UHUser++Nick)])
+                             end, lists:sort(UniqUsers)),
+           % Messages to show (based on Users)
+           User_messages_filtered = case CheckedUsers of
+                                         [] -> User_messages;
+                                         _  -> lists:filter(fun(#msg{peer_name=PName, peer_server=PServer}) ->
+                                                  lists:member(PName++"@"++PServer, CheckedUsers)
+                                               end, User_messages)
+                                    end,
+
+           Msgs_Fun = fun(#msg{timestamp=Timestamp,
+                               subject=Subject,
+                               direction=Direction,
+                               peer_name=PName, peer_server=PServer, peer_resource=PRes,
+                               type=Type,
+                               body=Body}) ->
+                      TextRaw = case Subject of
+                                     "" -> Body;
+                                     _ -> [?T("Subject"),": ",Subject,"<br>", Body]
+                                end,
+                      ID = jlib:encode_base64(binary_to_list(term_to_binary(Timestamp))),
+                      % replace \n with <br>
+                      Text = lists:map(fun(10) -> "<br>";
+                                           (A) -> A
+                                        end, TextRaw),
+                      Resource = case PRes of
+                                      [] -> [];
+                                      undefined -> [];
+                                      R -> "/" ++ R
+                                 end,
+                      UserNick =
+                         case search_user_nick(PName++"@"++PServer, UserRoster) of
+                              nothing when PServer == Server ->
+                                   PName;
+                              nothing when Type == "groupchat", Direction == from ->
+                                   PName++"@"++PServer++Resource;
+                              nothing ->
+                                   PName++"@"++PServer;
+                              N -> N
+                         end,
+                      ?XE("tr",
+                       [?XE("td", [?INPUT("checkbox", "selected", ID)]),
+                        ?XC("td", convert_timestamp(Timestamp)),
+                        ?XC("td", atom_to_list(Direction)++": "++UserNick),
+                        ?XC("td", Text)])
+                 end,
+           % Filtered user messages in html
+           Msgs = lists:map(Msgs_Fun, lists:sort(User_messages_filtered)),
+
+           [?XC("h1", ?T("Logged messages for ") ++ Jid ++ ?T(" at ") ++ Date)] ++
+            case Res of
+                 ok -> [?CT("Submitted"), ?P];
+                 error -> [?CT("Bad format"), ?P];
+                 nothing -> []
+            end ++
+            [?XAE("form", [{"action", ""}, {"method", "post"}],
+             [?XE("table",
+                  [?XE("thead",
+                       [?X("td"),
+                        ?XCT("td", "User")
+                       ]
+                      ),
+                   ?XE("tbody",
+                        Users
+                      )]),
+              ?INPUTT("submit", "filter", "Filter Selected")
+             ] ++
+             [?XE("table",
+                  [?XE("thead",
+                       [?XE("tr",
+                        [?X("td"),
+                         ?XCT("td", "Date, Time"),
+                         ?XCT("td", "Direction: Jid"),
+                         ?XCT("td", "Body")
+                        ])]),
+                   ?XE("tbody",
+                        Msgs
+                      )]),
+              ?INPUTT("submit", "delete", "Delete Selected"),
+              ?BR
+             ]
+            )]
+    end.
--- mod_logdb.hrl.orig	2009-02-05 19:21:29.000000000 +0200
+++ mod_logdb.hrl	2009-02-05 19:21:02.000000000 +0200
@@ -0,0 +1,35 @@
+%%%----------------------------------------------------------------------
+%%% File    : mod_logdb.hrl
+%%% Author  : Oleg Palij (mailto,xmpp:o.palij@gmail.com)
+%%% Purpose :
+%%% Version : trunk
+%%% Id      : $Id: mod_logdb.hrl 1163 2008-09-15 11:12:08Z malik $
+%%% Url     : http://www.dp.uz.gov.ua/o.palij/mod_logdb/
+%%%----------------------------------------------------------------------
+
+-define(logdb_debug, true).
+
+-ifdef(logdb_debug).
+-define(MYDEBUG(Format, Args), io:format("D(~p:~p:~p) : "++Format++"~n",
+                                       [calendar:local_time(),?MODULE,?LINE]++Args)).
+-else.
+-define(MYDEBUG(_F,_A),[]).
+-endif.
+
+-record(msg,   {timestamp,
+                owner_name,
+                peer_name, peer_server, peer_resource,
+                direction,
+                type, subject,
+                body}).
+
+-record(user_settings, {owner_name,
+                        dolog_default,
+                        dolog_list=[],
+                        donotlog_list=[]}).
+
+-define(INPUTC(Type, Name, Value),
+        ?XA("input", [{"type", Type},
+                      {"name", Name},
+                      {"value", Value},
+                      {"checked", "true"}])).
--- mod_logdb_mnesia.erl.orig	2009-02-05 19:21:29.000000000 +0200
+++ mod_logdb_mnesia.erl	2009-02-05 19:19:59.000000000 +0200
@@ -0,0 +1,546 @@
+%%%----------------------------------------------------------------------
+%%% File    : mod_logdb_mnesia.erl
+%%% Author  : Oleg Palij (mailto,xmpp:o.palij@gmail.com)
+%%% Purpose : mnesia backend for mod_logdb
+%%% Version : trunk
+%%% Id      : $Id: mod_logdb_mnesia.erl 1169 2008-09-16 12:14:36Z malik $
+%%% Url     : http://www.dp.uz.gov.ua/o.palij/mod_logdb/
+%%%----------------------------------------------------------------------
+
+-module(mod_logdb_mnesia).
+-author('o.palij@gmail.com').
+
+-include("mod_logdb.hrl").
+-include("ejabberd.hrl").
+-include("jlib.hrl").
+
+-behaviour(gen_logdb).
+-behaviour(gen_server).
+   
+% gen_server
+-export([code_change/3,handle_call/3,handle_cast/2,handle_info/2,init/1,terminate/2]).
+% gen_mod
+-export([start/2, stop/1]).
+% gen_logdb
+-export([log_message/2,
+         rebuild_stats/1,
+         rebuild_stats_at/2,
+         delete_messages_by_user_at/3, delete_all_messages_by_user_at/3, delete_messages_at/2,
+         get_vhost_stats/1, get_vhost_stats_at/2, get_user_stats/2, get_user_messages_at/3,
+         get_dates/1,
+         get_users_settings/1, get_user_settings/2, set_user_settings/3,
+         drop_user/2]).
+ 
+-define(PROCNAME, mod_logdb_mnesia).
+-define(CALL_TIMEOUT, 10000).
+  
+-record(state, {vhost}).
+
+-record(stats, {user, at, count}).
+
+prefix() ->
+   "logdb_".
+
+suffix(VHost) ->
+   "_" ++ VHost.
+
+stats_table(VHost) ->
+   list_to_atom(prefix() ++ "stats" ++ suffix(VHost)).
+
+table_name(VHost, Date) ->
+   list_to_atom(prefix() ++ "messages_" ++ Date ++ suffix(VHost)).
+
+settings_table(VHost) ->
+   list_to_atom(prefix() ++ "settings" ++ suffix(VHost)).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_mod callbacks
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+start(VHost, Opts) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:start({local, Proc}, ?MODULE, [VHost, Opts], []).
+
+stop(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {stop}, ?CALL_TIMEOUT).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_server callbacks
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+init([VHost, _Opts]) ->
+   case mnesia:system_info(is_running) of
+        yes ->
+          ok = create_stats_table(VHost),
+          ok = create_settings_table(VHost),
+          {ok, #state{vhost=VHost}};
+        no ->
+          ?ERROR_MSG("Mnesia not running", []),
+          {stop, db_connection_failed};
+        Status ->
+          ?ERROR_MSG("Mnesia status: ~p", [Status]),
+          {stop, db_connection_failed}
+   end.
+
+handle_call({log_message, Msg}, _From, #state{vhost=VHost}=State) ->
+    {reply, log_message_int(VHost, Msg), State};
+handle_call({rebuild_stats}, _From, #state{vhost=VHost}=State) ->
+    {atomic, ok} = delete_nonexistent_stats(VHost),
+    Reply =
+      lists:foreach(fun(Date) ->
+                        rebuild_stats_at_int(VHost, Date)
+                    end, get_dates_int(VHost)),
+    {reply, Reply, State};
+handle_call({rebuild_stats_at, Date}, _From, #state{vhost=VHost}=State) ->
+    Reply = rebuild_stats_at_int(VHost, Date),
+    {reply, Reply, State}; 
+handle_call({delete_messages_by_user_at, Msgs, Date}, _From, #state{vhost=VHost}=State) ->
+    Table = table_name(VHost, Date),
+    Fun = fun() ->
+             lists:foreach(
+                fun(Msg) ->
+                    mnesia:write_lock_table(stats_table(VHost)),
+                    mnesia:write_lock_table(Table),
+                    mnesia:delete_object(Table, Msg, write)
+               end, Msgs)
+          end,
+    DRez = case mnesia:transaction(Fun) of
+                {aborted, Reason} ->
+                   ?ERROR_MSG("Failed to delete_messages_by_user_at at ~p for ~p: ~p", [Date, VHost, Reason]),
+                   error;
+                _ ->
+                   ok
+           end,
+    Reply =
+      case rebuild_stats_at_int(VHost, Date) of
+           error ->
+             error;
+           ok ->
+             DRez
+      end,
+    {reply, Reply, State};
+handle_call({delete_all_messages_by_user_at, User, Date}, _From, #state{vhost=VHost}=State) ->
+    {reply, delete_all_messages_by_user_at_int(User, VHost, Date), State};
+handle_call({delete_messages_at, Date}, _From, #state{vhost=VHost}=State) ->
+    Reply =
+      case mnesia:delete_table(table_name(VHost, Date)) of
+           {atomic, ok} ->
+              delete_stats_by_vhost_at_int(VHost, Date);
+           {aborted, Reason} ->
+              ?ERROR_MSG("Failed to delete_messages_at for ~p at ~p", [VHost, Date, Reason]),
+              error
+      end,
+    {reply, Reply, State};
+handle_call({get_vhost_stats}, _From, #state{vhost=VHost}=State) ->
+    Fun = fun(#stats{at=Date, count=Count}, Stats) ->
+              case lists:keysearch(Date, 1, Stats) of
+                   false ->
+                      lists:append(Stats, [{Date, Count}]);
+                   {value, {_, TempCount}} ->
+                      lists:keyreplace(Date, 1, Stats, {Date, TempCount+Count})
+              end
+          end,
+    Reply =
+      case mnesia:transaction(fun() ->
+                                   mnesia:foldl(Fun, [], stats_table(VHost))
+                                end) of
+             {atomic, Result} -> {ok, mod_logdb:sort_stats(Result)};
+             {aborted, Reason} -> {error, Reason}
+      end,
+    {reply, Reply, State};
+handle_call({get_vhost_stats_at, Date}, _From, #state{vhost=VHost}=State) ->
+    Fun = fun() ->
+             Pat = #stats{user='$1', at=Date, count='$2'},
+             mnesia:select(stats_table(VHost), [{Pat, [], [['$1', '$2']]}])
+          end,
+    Reply =
+      case mnesia:transaction(Fun) of
+           {atomic, Result} ->
+                     {ok, lists:reverse(lists:keysort(2, [{User, Count} || [User, Count] <- Result]))};
+           {aborted, Reason} ->
+                     {error, Reason}
+      end,
+    {reply, Reply, State};
+handle_call({get_user_stats, User}, _From, #state{vhost=VHost}=State) ->
+    {reply, get_user_stats_int(User, VHost), State};
+handle_call({get_user_messages_at, User, Date}, _From, #state{vhost=VHost}=State) ->
+    Reply =
+      case mnesia:transaction(fun() ->
+                                Pat = #msg{owner_name=User, _='_'},
+                                mnesia:select(table_name(VHost, Date),
+                                              [{Pat, [], ['$_']}])
+                        end) of
+           {atomic, Result} -> {ok, Result};
+           {aborted, Reason} ->
+                    {error, Reason}
+      end,
+    {reply, Reply, State};
+handle_call({get_dates}, _From, #state{vhost=VHost}=State) ->
+    {reply, get_dates_int(VHost), State};
+handle_call({get_users_settings}, _From, #state{vhost=VHost}=State) ->
+    Reply = mnesia:dirty_match_object(settings_table(VHost), #user_settings{_='_'}),
+    {reply, {ok, Reply}, State};
+handle_call({get_user_settings, User}, _From, #state{vhost=VHost}=State) ->
+   Reply =
+    case mnesia:dirty_match_object(settings_table(VHost), #user_settings{owner_name=User, _='_'}) of
+         [] -> [];
+         [Setting] ->
+            Setting
+    end,
+   {reply, Reply, State};
+handle_call({set_user_settings, _User, Set}, _From, #state{vhost=VHost}=State) ->
+    ?MYDEBUG("~p~n~p", [settings_table(VHost), Set]),
+    Reply = mnesia:dirty_write(settings_table(VHost), Set),
+    ?MYDEBUG("~p", [Reply]),
+    {reply, Reply, State};
+handle_call({drop_user, User}, _From, #state{vhost=VHost}=State) ->
+    {ok, Dates} = get_user_stats_int(User, VHost),
+    MDResult = lists:map(fun({Date, _}) ->
+                   delete_all_messages_by_user_at_int(User, VHost, Date)
+               end, Dates),
+    SDResult = delete_user_settings_int(User, VHost),
+    Reply =
+      case lists:all(fun(Result) when Result == ok ->
+                          true;
+                        (Result) when Result == error ->
+                          false
+                     end, lists:append(MDResult, [SDResult])) of
+           true ->
+             ok;
+           false ->
+             error
+      end,
+    {reply, Reply, State};
+handle_call({stop}, _From, State) ->
+   {stop, normal, ok, State};
+handle_call(Msg, _From, State) ->
+    ?INFO_MSG("Got call Msg: ~p, State: ~p", [Msg, State]),
+    {noreply, State}.
+
+handle_cast(Msg, State) ->
+    ?INFO_MSG("Got cast Msg:~p, State:~p", [Msg, State]),
+    {noreply, State}.
+
+handle_info(Info, State) ->
+    ?INFO_MSG("Got Info:~p, State:~p", [Info, State]),
+    {noreply, State}.
+
+terminate(_Reason, _State) ->
+    ok.
+
+code_change(_OldVsn, State, _Extra) ->
+    {ok, State}.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_logdb callbacks
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+log_message(VHost, Msg) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {log_message, Msg}, ?CALL_TIMEOUT).
+rebuild_stats(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {rebuild_stats}, ?CALL_TIMEOUT).
+rebuild_stats_at(VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {rebuild_stats_at, Date}, ?CALL_TIMEOUT).
+delete_messages_by_user_at(VHost, Msgs, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {delete_messages_by_user_at, Msgs, Date}, ?CALL_TIMEOUT).
+delete_all_messages_by_user_at(User, VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {delete_all_messages_by_user_at, User, Date}, ?CALL_TIMEOUT).
+delete_messages_at(VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {delete_messages_at, Date}, ?CALL_TIMEOUT).
+get_vhost_stats(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_vhost_stats}, ?CALL_TIMEOUT).
+get_vhost_stats_at(VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_vhost_stats_at, Date}, ?CALL_TIMEOUT).
+get_user_stats(User, VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_user_stats, User}, ?CALL_TIMEOUT).
+get_user_messages_at(User, VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_user_messages_at, User, Date}, ?CALL_TIMEOUT).
+get_dates(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_dates}, ?CALL_TIMEOUT).
+get_user_settings(User, VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_user_settings, User}, ?CALL_TIMEOUT).
+get_users_settings(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_users_settings}, ?CALL_TIMEOUT).
+set_user_settings(User, VHost, Set) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {set_user_settings, User, Set}, ?CALL_TIMEOUT).
+drop_user(User, VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {drop_user, User}, ?CALL_TIMEOUT).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% internals
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+log_message_int(VHost, #msg{timestamp=Timestamp}=Msg) ->
+    Date = mod_logdb:convert_timestamp_brief(Timestamp),
+
+    ATable = table_name(VHost, Date),
+    Fun = fun() ->
+              mnesia:write_lock_table(ATable),
+              mnesia:write(ATable, Msg, write)
+          end,
+    % log message, increment stats for both users
+    case mnesia:transaction(Fun) of
+         % if table does not exists - create it and try to log message again
+         {aborted,{no_exists, _Table}} ->
+             case create_msg_table(VHost, Date) of
+                  {aborted, CReason} ->
+                     ?ERROR_MSG("Failed to log message: ~p", [CReason]),
+                     error;
+                  {atomic, ok} ->
+                     ?MYDEBUG("Created msg table for ~p at ~p", [VHost, Date]),
+                     log_message_int(VHost, Msg)
+             end;
+         {aborted, TReason} ->
+             ?ERROR_MSG("Failed to log message: ~p", [TReason]),
+             error;
+         {atomic, _} ->
+             ?MYDEBUG("Logged ok for ~p, peer: ~p", [Msg#msg.owner_name++"@"++VHost,
+                                                    Msg#msg.peer_name++"@"++Msg#msg.peer_server]),
+             increment_user_stats(Msg#msg.owner_name, VHost, Date)
+    end.
+
+increment_user_stats(Owner, VHost, Date) ->
+    Fun = fun() ->
+            Pat = #stats{user=Owner, at=Date, count='$1'},
+            mnesia:write_lock_table(stats_table(VHost)),
+            case mnesia:select(stats_table(VHost), [{Pat, [], ['$_']}]) of
+                 [] ->
+                    mnesia:write(stats_table(VHost),
+                                 #stats{user=Owner,
+                                        at=Date,
+                                        count=1},
+                                 write);
+                 [Stats] ->
+                    mnesia:delete_object(stats_table(VHost),
+                                         #stats{user=Owner,
+                                                at=Date,
+                                                count=Stats#stats.count},
+                                         write),
+                    New = Stats#stats{count = Stats#stats.count+1},
+                    if
+                      New#stats.count > 0 -> mnesia:write(stats_table(VHost),
+                                                          New,
+                                                          write);
+                      true -> ok
+                    end
+            end
+          end,
+    case mnesia:transaction(Fun) of
+         {aborted, Reason} ->
+             ?ERROR_MSG("Failed to update stats for ~s@~s: ~p", [Owner, VHost, Reason]),
+             error;
+         {atomic, _} ->
+             ?MYDEBUG("Updated stats for ~s@~s", [Owner, VHost]),
+             ok
+    end.
+
+get_dates_int(VHost) ->
+    Tables = mnesia:system_info(tables),
+    lists:foldl(fun(ATable, Dates) ->
+                    Table = atom_to_list(ATable),
+                    case regexp:match(Table, VHost++"$") of
+                         {match, _, _} ->
+                            case regexp:match(Table,"_[0-9]+-[0-9]+-[0-9]+_") of
+                                 {match, S, E} ->
+                                     lists:append(Dates, [lists:sublist(Table,S+1,E-2)]);
+                                 nomatch ->
+                                     Dates
+                            end;
+                         nomatch ->
+                            Dates
+                    end
+                end, [], Tables).
+
+rebuild_stats_at_int(VHost, Date) ->
+    Table = table_name(VHost, Date),
+    STable = stats_table(VHost),
+    CFun = fun(Msg, Stats) ->
+               Owner = Msg#msg.owner_name,
+               case lists:keysearch(Owner, 1, Stats) of
+                    {value, {_, Count}} ->
+                       lists:keyreplace(Owner, 1, Stats, {Owner, Count + 1});
+                    false ->
+                       lists:append(Stats, [{Owner, 1}])
+               end
+           end,
+    DFun = fun(#stats{at=SDate} = Stat, _Acc)
+                when SDate == Date ->
+                 mnesia:delete_object(stats_table(VHost), Stat, write);
+              (_Stat, _Acc) -> ok
+           end,
+    % TODO: Maybe unregister hooks ?
+    case mnesia:transaction(fun() ->
+                               mnesia:write_lock_table(Table),
+                               mnesia:write_lock_table(STable),
+                               % Calc stats for VHost at Date
+                               case mnesia:foldl(CFun, [], Table) of
+                                    [] -> empty;
+                                    AStats ->
+                                      % Delete all stats for VHost at Date
+                                      mnesia:foldl(DFun, [], STable),
+                                      % Write new calc'ed stats
+                                      lists:foreach(fun({Owner, Count}) ->
+                                                        WStat = #stats{user=Owner, at=Date, count=Count},
+                                                        mnesia:write(stats_table(VHost), WStat, write)
+                                                    end, AStats),
+                                      ok
+                               end
+                            end) of
+         {aborted, Reason} ->
+              ?ERROR_MSG("Failed to rebuild_stats_at for ~p at ~p: ~p", [VHost, Date, Reason]),
+              error;
+         {atomic, ok} ->
+              ok;
+         {atomic, empty} ->
+              {atomic,ok} = mnesia:delete_table(Table),
+              ?MYDEBUG("Dropped table at ~p", [Date]),
+              ok
+    end.
+
+delete_nonexistent_stats(VHost) ->
+    Dates = get_dates_int(VHost),
+    mnesia:transaction(fun() ->
+                          mnesia:foldl(fun(#stats{at=Date} = Stat, _Acc) ->
+                                          case lists:member(Date, Dates) of
+                                               false -> mnesia:delete_object(Stat);
+                                               true -> ok
+                                          end
+                                       end, ok, stats_table(VHost))
+                       end).
+
+delete_stats_by_vhost_at_int(VHost, Date) ->
+    StatsDelete = fun(#stats{at=SDate} = Stat, _Acc)
+                      when SDate == Date ->
+                        mnesia:delete_object(stats_table(VHost), Stat, write),
+                        ok;
+                     (_Msg, _Acc) -> ok
+                  end,
+    case mnesia:transaction(fun() ->
+                             mnesia:write_lock_table(stats_table(VHost)),
+                             mnesia:foldl(StatsDelete, ok, stats_table(VHost))
+                       end) of
+         {aborted, Reason} ->
+            ?ERROR_MSG("Failed to update stats at ~p for ~p: ~p", [Date, VHost, Reason]),
+            rebuild_stats_at_int(VHost, Date);
+         _ ->
+            ?INFO_MSG("Updated stats at ~p for ~p", [Date, VHost]),
+            ok
+    end.
+
+get_user_stats_int(User, VHost) ->
+    case mnesia:transaction(fun() ->
+                               Pat = #stats{user=User, at='$1', count='$2'},
+                               mnesia:select(stats_table(VHost), [{Pat, [], [['$1', '$2']]}])
+                            end) of
+         {atomic, Result} ->
+                  {ok, mod_logdb:sort_stats([{Date, Count} || [Date, Count] <- Result])};
+         {aborted, Reason} ->
+                  {error, Reason}
+    end.
+
+delete_all_messages_by_user_at_int(User, VHost, Date) ->
+    Table = table_name(VHost, Date),
+    MsgDelete = fun(#msg{owner_name=Owner} = Msg, _Acc)
+                     when Owner == User ->
+                       mnesia:delete_object(Table, Msg, write),
+                       ok;
+                   (_Msg, _Acc) -> ok
+                end,
+    DRez = case mnesia:transaction(fun() ->
+                                     mnesia:foldl(MsgDelete, ok, Table)
+                                   end) of
+                {aborted, Reason} ->
+                   ?ERROR_MSG("Failed to delete_all_messages_by_user_at for ~p@~p at ~p: ~p", [User, VHost, Date, Reason]),
+                   error;
+                _ ->
+                   ok
+    end,
+    case rebuild_stats_at_int(VHost, Date) of
+         error ->
+           error;
+         ok ->
+           DRez
+    end.
+
+delete_user_settings_int(User, VHost) ->
+    STable = settings_table(VHost),
+    case mnesia:dirty_match_object(STable, #user_settings{owner_name=User, _='_'}) of
+         [] ->
+            ok;
+         [UserSettings] ->
+            mnesia:dirty_delete_object(STable, UserSettings)
+    end.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% tables internals
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+create_stats_table(VHost) ->
+    SName = stats_table(VHost),
+    case mnesia:create_table(SName,
+                             [{disc_only_copies, [node()]},
+                              {type, bag},
+                              {attributes, record_info(fields, stats)},
+                              {record_name, stats}
+                             ]) of
+         {atomic, ok} ->
+             ?MYDEBUG("Created stats table for ~p", [VHost]),
+             lists:foreach(fun(Date) ->
+                    rebuild_stats_at_int(VHost, Date)
+             end, get_dates_int(VHost)),
+             ok;
+         {aborted, {already_exists, _}} ->
+             ?MYDEBUG("Stats table for ~p already exists", [VHost]),
+             ok;
+         {aborted, Reason} ->
+             ?ERROR_MSG("Failed to create stats table: ~p", [Reason]),
+             error
+    end.
+
+create_settings_table(VHost) ->
+    SName = settings_table(VHost),
+    case mnesia:create_table(SName,
+                             [{disc_copies, [node()]},
+                              {type, set},
+                              {attributes, record_info(fields, user_settings)},
+                              {record_name, user_settings}
+                             ]) of
+         {atomic, ok} ->
+             ?MYDEBUG("Created settings table for ~p", [VHost]),
+             ok;
+         {aborted, {already_exists, _}} ->
+             ?MYDEBUG("Settings table for ~p already exists", [VHost]),
+             ok;
+         {aborted, Reason} ->
+             ?ERROR_MSG("Failed to create settings table: ~p", [Reason]),
+             error
+    end.
+
+create_msg_table(VHost, Date) ->
+    mnesia:create_table(
+              table_name(VHost, Date),
+              [{disc_only_copies, [node()]},
+               {type, bag},
+               {attributes, record_info(fields, msg)},
+               {record_name, msg}]).
--- mod_logdb_mysql.erl.orig	2009-02-05 19:21:29.000000000 +0200
+++ mod_logdb_mysql.erl	2009-02-05 19:20:23.000000000 +0200
@@ -0,0 +1,1052 @@
+%%%----------------------------------------------------------------------
+%%% File    : mod_logdb_mysql.erl
+%%% Author  : Oleg Palij (mailto,xmpp:o.palij@gmail.com)
+%%% Purpose : MySQL backend for mod_logdb
+%%% Version : trunk
+%%% Id      : $Id: mod_logdb_mysql.erl 1253 2009-02-02 11:10:03Z malik $
+%%% Url     : http://www.dp.uz.gov.ua/o.palij/mod_logdb/
+%%%----------------------------------------------------------------------
+
+-module(mod_logdb_mysql).
+-author('o.palij@gmail.com').
+
+-include("mod_logdb.hrl").
+-include("ejabberd.hrl").
+-include("jlib.hrl").
+
+-behaviour(gen_logdb).
+-behaviour(gen_server).
+
+% gen_server
+-export([code_change/3,handle_call/3,handle_cast/2,handle_info/2,init/1,terminate/2]).
+% gen_mod
+-export([start/2, stop/1]).
+% gen_logdb
+-export([log_message/2,
+         rebuild_stats/1,
+         rebuild_stats_at/2,
+         delete_messages_by_user_at/3, delete_all_messages_by_user_at/3, delete_messages_at/2,
+         get_vhost_stats/1, get_vhost_stats_at/2, get_user_stats/2, get_user_messages_at/3,
+         get_dates/1,
+         get_users_settings/1, get_user_settings/2, set_user_settings/3,
+         drop_user/2]).
+
+% gen_server call timeout
+-define(CALL_TIMEOUT, 30000).
+-define(MYSQL_TIMEOUT, 60000).
+-define(INDEX_SIZE, integer_to_list(170)).
+-define(PROCNAME, mod_logdb_mysql).
+
+-import(mod_logdb, [list_to_bool/1, bool_to_list/1,
+                    list_to_string/1, string_to_list/1,
+                    convert_timestamp_brief/1]).
+
+-record(state, {dbref, vhost, server, port, db, user, password}).
+
+% replace "." with "_"
+escape_vhost(VHost) -> lists:map(fun(46) -> 95;
+                                    (A) -> A
+                                 end, VHost).
+prefix() ->
+   "`logdb_".
+
+suffix(VHost) ->
+   "_" ++ escape_vhost(VHost) ++ "`".
+
+messages_table(VHost, Date) ->
+   prefix() ++ "messages_" ++ Date ++ suffix(VHost).
+
+stats_table(VHost) ->
+   prefix() ++ "stats" ++ suffix(VHost).
+
+temp_table(VHost) ->
+   prefix() ++ "temp" ++ suffix(VHost).
+
+settings_table(VHost) ->
+   prefix() ++ "settings" ++ suffix(VHost).
+
+users_table(VHost) ->
+   prefix() ++ "users" ++ suffix(VHost).
+servers_table(VHost) ->
+   prefix() ++ "servers" ++ suffix(VHost).
+resources_table(VHost) ->
+   prefix() ++ "resources" ++ suffix(VHost).
+
+ets_users_table(VHost) -> list_to_atom("logdb_users_" ++ VHost).
+ets_servers_table(VHost) -> list_to_atom("logdb_servers_" ++ VHost).
+ets_resources_table(VHost) -> list_to_atom("logdb_resources_" ++ VHost).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_mod callbacks
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+start(VHost, Opts) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:start({local, Proc}, ?MODULE, [VHost, Opts], []).
+
+stop(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {stop}, ?CALL_TIMEOUT).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_server callbacks
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+init([VHost, Opts]) ->
+   crypto:start(),
+
+   Server = gen_mod:get_opt(server, Opts, "localhost"),
+   Port = gen_mod:get_opt(port, Opts, 3306),
+   DB = gen_mod:get_opt(db, Opts, "logdb"),
+   User = gen_mod:get_opt(user, Opts, "root"),
+   Password = gen_mod:get_opt(password, Opts, ""),
+
+   St = #state{vhost=VHost,
+               server=Server, port=Port, db=DB,
+               user=User, password=Password},
+
+   case open_mysql_connection(St) of
+       {ok, DBRef} ->
+           State = St#state{dbref=DBRef},
+           ok = create_stats_table(State),
+           ok = create_settings_table(State),
+           ok = create_users_table(State),
+           % clear ets cache every ...
+           timer:send_interval(timer:hours(12), clear_ets_tables),
+           ok = create_servers_table(State),
+           ok = create_resources_table(State),
+           erlang:monitor(process, DBRef),
+           {ok, State};
+       {error, Reason} ->
+           ?ERROR_MSG("MySQL connection failed: ~p~n", [Reason]),
+           {stop, db_connection_failed}
+   end.
+
+open_mysql_connection(#state{server=Server, port=Port, db=DB,
+                             user=DBUser, password=Password} = _State) ->
+   LogFun = fun(debug, _Format, _Argument) ->
+                 %?MYDEBUG(Format, Argument);
+                 ok;
+               (error, Format, Argument) ->
+                 ?ERROR_MSG(Format, Argument);
+               (Level, Format, Argument) ->
+                 ?MYDEBUG("MySQL (~p)~n", [Level]),
+                 ?MYDEBUG(Format, Argument)
+            end,
+   mysql_conn:start(Server, Port, DBUser, Password, DB, LogFun).
+
+close_mysql_connection(DBRef) ->
+   ?MYDEBUG("Closing ~p mysql connection", [DBRef]),
+   mysql_conn:stop(DBRef).
+
+handle_call({log_message, Msg}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    Date = convert_timestamp_brief(Msg#msg.timestamp),
+
+    Table = messages_table(VHost, Date),
+    Owner_id = get_user_id(DBRef, VHost, Msg#msg.owner_name),
+    Peer_name_id = get_user_id(DBRef, VHost, Msg#msg.peer_name),
+    Peer_server_id = get_server_id(DBRef, VHost, Msg#msg.peer_server),
+    Peer_resource_id = get_resource_id(DBRef, VHost, Msg#msg.peer_resource),
+
+    Query = ["INSERT INTO ",Table," ",
+               "(owner_id,",
+                "peer_name_id,",
+                "peer_server_id,",
+                "peer_resource_id,",
+                "direction,",
+                "type,",
+                "subject,",
+                "body,",
+                "timestamp) ",
+               "VALUES ",
+               "('", Owner_id, "',",
+                 "'", Peer_name_id, "',",
+                 "'", Peer_server_id, "',",
+                 "'", Peer_resource_id, "',",
+                 "'", atom_to_list(Msg#msg.direction), "',",
+                 "'", Msg#msg.type, "',",
+                 "'", ejabberd_odbc:escape(Msg#msg.subject), "',",
+                 "'", ejabberd_odbc:escape(Msg#msg.body), "',",
+                 "'", Msg#msg.timestamp, "');"],
+
+    Reply =
+       case sql_query_internal_silent(DBRef, Query) of
+            {updated, _} ->
+               ?MYDEBUG("Logged ok for ~p, peer: ~p", [Msg#msg.owner_name++"@"++VHost,
+                                                       Msg#msg.peer_name++"@"++Msg#msg.peer_server]),
+               increment_user_stats(DBRef, Msg#msg.owner_name, Owner_id, VHost, Peer_name_id, Peer_server_id, Date);
+            {error, Reason} ->
+               case regexp:match(Reason, "#42S02") of
+                    % Table doesn't exist
+                    {match, _, _} ->
+                       case create_msg_table(DBRef, VHost, Date) of
+                            error ->
+                               error;
+                            ok ->
+                               {updated, _} = sql_query_internal(DBRef, Query),
+                               increment_user_stats(DBRef, Msg#msg.owner_name, Owner_id, VHost, Peer_name_id, Peer_server_id, Date)
+                       end;
+                    _ ->
+                       ?ERROR_MSG("Failed to log message: ~p", [Reason]),
+                       error
+               end
+       end,
+    {reply, Reply, State};
+handle_call({rebuild_stats_at, Date}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    Reply = rebuild_stats_at_int(DBRef, VHost, Date),
+    {reply, Reply, State};
+handle_call({delete_messages_by_user_at, [], _Date}, _From, State) ->
+    {reply, error, State};
+handle_call({delete_messages_by_user_at, Msgs, Date}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    Temp = lists:flatmap(fun(#msg{timestamp=Timestamp} = _Msg) ->
+                             ["\"",Timestamp,"\"",","]
+                         end, Msgs),
+
+    Temp1 = lists:append([lists:sublist(Temp, length(Temp)-1), ");"]),
+
+    Query = ["DELETE FROM ",messages_table(VHost, Date)," ",
+                             "WHERE timestamp IN (", Temp1],
+
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {updated, Aff} ->
+              ?MYDEBUG("Aff=~p", [Aff]),
+              rebuild_stats_at_int(DBRef, VHost, Date);
+           {error, _} ->
+              error
+      end,
+    {reply, Reply, State};
+handle_call({delete_all_messages_by_user_at, User, Date}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    ok = delete_all_messages_by_user_at_int(DBRef, User, VHost, Date),
+    ok = delete_stats_by_user_at_int(DBRef, User, VHost, Date),
+    {reply, ok, State};
+handle_call({delete_messages_at, Date}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    Reply =
+      case sql_query_internal(DBRef, ["DROP TABLE ",messages_table(VHost, Date),";"]) of
+           {updated, _} ->
+              Query = ["DELETE FROM ",stats_table(VHost)," "
+                          "WHERE at=\"",Date,"\";"],
+              case sql_query_internal(DBRef, Query) of
+                   {updated, _} ->
+                      ok;
+                   {error, _} ->
+                      error
+              end;
+           {error, _} ->
+              error
+      end,
+    {reply, Reply, State};
+handle_call({get_vhost_stats}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    SName = stats_table(VHost),
+    Query = ["SELECT at, sum(count) ",
+                "FROM ",SName," ",
+                "GROUP BY at ",
+                "ORDER BY DATE(at) DESC;"
+            ],
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {data, Result} ->
+              {ok, [ {Date, list_to_integer(Count)} || [Date, Count] <- Result ]};
+           {error, Reason} ->
+              % TODO: Duplicate error message ?
+              {error, Reason}
+      end,
+    {reply, Reply, State};
+handle_call({get_vhost_stats_at, Date}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    SName = stats_table(VHost),
+    Query = ["SELECT username, sum(count) AS allcount ",
+                "FROM ",SName," ",
+                "JOIN ",users_table(VHost)," ON owner_id=user_id "
+                "WHERE at=\"",Date,"\" "
+                "GROUP BY username ",
+                "ORDER BY allcount DESC;"
+            ],
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {data, Result} ->
+              {ok, lists:reverse(
+                     lists:keysort(2,
+                                   [ {User, list_to_integer(Count)} || [User, Count] <- Result]))};
+           {error, Reason} ->
+              % TODO:
+              {error, Reason}
+      end,
+    {reply, Reply, State};
+handle_call({get_user_stats, User}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    {reply, get_user_stats_int(DBRef, User, VHost), State};
+handle_call({get_user_messages_at, User, Date}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    TName = messages_table(VHost, Date),
+    UName = users_table(VHost),
+    SName = servers_table(VHost),
+    RName = resources_table(VHost),
+    Query = ["SELECT users.username,",
+                    "servers.server,",
+                    "resources.resource,",
+                    "messages.direction,"
+                    "messages.type,"
+                    "messages.subject,"
+                    "messages.body,"
+                    "messages.timestamp "
+               "FROM ",TName," AS messages "
+                "JOIN ",UName," AS users ON peer_name_id=user_id ",
+                "JOIN ",SName," AS servers ON peer_server_id=server_id ",
+                "JOIN ",RName," AS resources ON peer_resource_id=resource_id ",
+               "WHERE owner_id=\"",get_user_id(DBRef, VHost, User),"\" ",
+               "ORDER BY timestamp ASC;"],
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {data, Result} ->
+              Fun = fun([Peer_name, Peer_server, Peer_resource,
+                         Direction,
+                         Type,
+                         Subject, Body,
+                         Timestamp]) ->
+                          #msg{peer_name=Peer_name, peer_server=Peer_server, peer_resource=Peer_resource,
+                               direction=list_to_atom(Direction),
+                               type=Type,
+                               subject=Subject, body=Body,
+                               timestamp=Timestamp}
+                    end,
+              {ok, lists:map(Fun, Result)};
+           {error, Reason} ->
+              {error, Reason}
+      end,
+    {reply, Reply, State};
+handle_call({get_dates}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    SName = stats_table(VHost),
+    Query = ["SELECT at ",
+                "FROM ",SName," ",
+                "GROUP BY at ",
+                "ORDER BY DATE(at) DESC;"
+            ],
+    Reply =
+       case sql_query_internal(DBRef, Query) of
+            {data, Result} ->
+               [ Date || [Date] <- Result ];
+            {error, Reason} ->
+               {error, Reason}
+       end,
+    {reply, Reply, State};
+handle_call({get_users_settings}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    Query = ["SELECT username,dolog_default,dolog_list,donotlog_list ",
+                "FROM ",settings_table(VHost)," ",
+             "JOIN ",users_table(VHost)," ON user_id=owner_id;"],
+    Reply = 
+      case sql_query_internal(DBRef, Query) of
+           {data, Result} ->
+              {ok, lists:map(fun([Owner, DoLogDef, DoLogL, DoNotLogL]) ->
+                                 #user_settings{owner_name=Owner,
+                                                dolog_default=list_to_bool(DoLogDef),
+                                                dolog_list=string_to_list(DoLogL),
+                                                donotlog_list=string_to_list(DoNotLogL)
+                                               }
+                             end, Result)};
+           {error, _} ->
+              error
+      end,
+    {reply, Reply, State};
+handle_call({get_user_settings, User}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    Query = ["SELECT dolog_default,dolog_list,donotlog_list FROM ",settings_table(VHost)," ",
+                 "WHERE owner_id=\"",get_user_id(DBRef, VHost, User),"\";"],
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {data, []} ->
+              {ok, []};
+           {data, [[Owner, DoLogDef, DoLogL, DoNotLogL]]} ->
+              {ok, #user_settings{owner_name=Owner,
+                                  dolog_default=list_to_bool(DoLogDef),
+                                  dolog_list=string_to_list(DoLogL),
+                                  donotlog_list=string_to_list(DoNotLogL)}};
+           {error, _} ->
+              error
+      end,
+    {reply, Reply, State};
+handle_call({set_user_settings, User, #user_settings{dolog_default=DoLogDef,
+                                                     dolog_list=DoLogL,
+                                                     donotlog_list=DoNotLogL}},
+            _From, #state{dbref=DBRef, vhost=VHost} = State) ->
+    User_id = get_user_id(DBRef, VHost, User),
+
+    Query = ["UPDATE ",settings_table(VHost)," ",
+                "SET dolog_default=",bool_to_list(DoLogDef),", ",
+                    "dolog_list='",list_to_string(DoLogL),"', ",
+                    "donotlog_list='",list_to_string(DoNotLogL),"' ",
+                "WHERE owner_id=\"",User_id,"\";"],
+
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {updated, 0} ->
+              IQuery = ["INSERT INTO ",settings_table(VHost)," ",
+                            "(owner_id, dolog_default, dolog_list, donotlog_list) ",
+                            "VALUES ",
+                            "('",User_id,"', ",bool_to_list(DoLogDef),",'",list_to_string(DoLogL),"','",list_to_string(DoNotLogL),"');"],
+              case sql_query_internal_silent(DBRef, IQuery) of
+                   {updated, _} ->
+                       ?MYDEBUG("New settings for ~s@~s", [User, VHost]),
+                       ok;
+                   {error, Reason} ->
+                       case regexp:match(Reason, "#23000") of
+                            % Already exists
+                            {match, _, _} ->
+                                ok;
+                             _ ->
+                                ?ERROR_MSG("Failed setup user ~p@~p: ~p", [User, VHost, Reason]),
+                                error
+                       end
+              end;
+           {updated, 1} ->
+              ?MYDEBUG("Updated settings for ~s@~s", [User, VHost]),
+              ok;
+           {error, _} ->
+              error
+      end,
+    {reply, Reply, State};
+handle_call({stop}, _From, #state{vhost=VHost}=State) ->
+   ets:delete(ets_users_table(VHost)),
+   ets:delete(ets_servers_table(VHost)),
+   ?MYDEBUG("Stoping mysql backend for ~p", [VHost]),
+   {stop, normal, ok, State};
+handle_call(Msg, _From, State) ->
+    ?INFO_MSG("Got call Msg: ~p, State: ~p", [Msg, State]),
+    {noreply, State}.
+
+handle_cast({rebuild_stats}, State) ->
+    rebuild_all_stats_int(State),
+    {noreply, State};
+handle_cast({drop_user, User}, #state{vhost=VHost} = State) ->
+    Fun = fun() ->
+            {ok, DBRef} = open_mysql_connection(State),
+            {ok, Dates} = get_user_stats_int(DBRef, User, VHost),
+            MDResult = lists:map(fun({Date, _}) ->
+                           delete_all_messages_by_user_at_int(DBRef, User, VHost, Date)
+                       end, Dates),
+            StDResult = delete_all_stats_by_user_int(DBRef, User, VHost),
+            SDResult = delete_user_settings_int(DBRef, User, VHost),
+            case lists:all(fun(Result) when Result == ok ->
+                                true;
+                              (Result) when Result == error ->
+                               false
+                           end, lists:append([MDResult, [StDResult], [SDResult]])) of
+                 true ->
+                   ?INFO_MSG("Removed ~s@~s", [User, VHost]);
+                 false ->
+                   ?ERROR_MSG("Failed to remove ~s@~s", [User, VHost])
+            end,
+            close_mysql_connection(DBRef)
+          end,
+    spawn(Fun),
+    {noreply, State};
+handle_cast(Msg, State) ->
+    ?INFO_MSG("Got cast Msg:~p, State:~p", [Msg, State]),
+    {noreply, State}.
+
+handle_info(clear_ets_tables, State) ->
+    ets:delete_all_objects(ets_users_table(State#state.vhost)),
+    ets:delete_all_objects(ets_resources_table(State#state.vhost)),
+    {noreply, State};
+handle_info({'DOWN', _MonitorRef, process, _Pid, _Info}, State) ->
+    {stop, connection_dropped, State};
+handle_info(Info, State) ->
+    ?INFO_MSG("Got Info:~p, State:~p", [Info, State]),
+    {noreply, State}.
+
+terminate(_Reason, #state{dbref=DBRef}=_State) ->
+    close_mysql_connection(DBRef),
+    ok.
+
+code_change(_OldVsn, State, _Extra) ->
+    {ok, State}.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_logdb callbacks
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+log_message(VHost, Msg) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {log_message, Msg}, ?CALL_TIMEOUT).
+rebuild_stats(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:cast(Proc, {rebuild_stats}).
+rebuild_stats_at(VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {rebuild_stats_at, Date}, ?CALL_TIMEOUT).
+delete_messages_by_user_at(VHost, Msgs, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {delete_messages_by_user_at, Msgs, Date}, ?CALL_TIMEOUT).
+delete_all_messages_by_user_at(User, VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {delete_all_messages_by_user_at, User, Date}, ?CALL_TIMEOUT).
+delete_messages_at(VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {delete_messages_at, Date}, ?CALL_TIMEOUT).
+get_vhost_stats(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_vhost_stats}, ?CALL_TIMEOUT).
+get_vhost_stats_at(VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_vhost_stats_at, Date}, ?CALL_TIMEOUT).
+get_user_stats(User, VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_user_stats, User}, ?CALL_TIMEOUT).
+get_user_messages_at(User, VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_user_messages_at, User, Date}, ?CALL_TIMEOUT).
+get_dates(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_dates}, ?CALL_TIMEOUT).
+get_users_settings(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_users_settings}, ?CALL_TIMEOUT).
+get_user_settings(User, VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_user_settings, User}, ?CALL_TIMEOUT).
+set_user_settings(User, VHost, Set) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {set_user_settings, User, Set}, ?CALL_TIMEOUT).
+drop_user(User, VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:cast(Proc, {drop_user, User}).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% internals
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+increment_user_stats(DBRef, User_name, User_id, VHost, PNameID, PServerID, Date) ->
+    SName = stats_table(VHost),
+    UQuery = ["UPDATE ",SName," ",
+                  "SET count=count+1 ",
+                  "WHERE owner_id=\"",User_id,"\" AND peer_name_id=\"",PNameID,"\" AND peer_server_id=\"",PServerID,"\" AND at=\"",Date,"\";"],
+
+    case sql_query_internal(DBRef, UQuery) of
+         {updated, 0} ->
+               IQuery = ["INSERT INTO ",SName," ",
+                             "(owner_id, peer_name_id, peer_server_id, at, count) ",
+                             "VALUES ",
+                             "('",User_id,"', '",PNameID,"', '",PServerID,"', '",Date,"', '1');"],
+               case sql_query_internal(DBRef, IQuery) of
+                    {updated, _} ->
+                         ?MYDEBUG("New stats for ~s@~s at ~s", [User_name, VHost, Date]),
+                         ok;
+                    {error, _} ->
+                         error
+               end;
+         {updated, _} ->
+               ?MYDEBUG("Updated stats for ~s@~s at ~s", [User_name, VHost, Date]),
+               ok;
+         {error, _} ->
+               error
+    end.
+
+get_dates_int(DBRef, VHost) ->
+    case sql_query_internal(DBRef, ["SHOW TABLES"]) of
+         {data, Tables} ->
+            lists:foldl(fun([Table], Dates) ->
+                           Reg = lists:sublist(prefix(),2,length(prefix())) ++ ".*" ++ escape_vhost(VHost),
+                           case regexp:match(Table, Reg) of
+                                {match, 1, _} ->
+                                   ?MYDEBUG("matched ~p against ~p", [Table, Reg]),
+                                   case regexp:match(Table,"[0-9]+-[0-9]+-[0-9]+") of
+                                        {match, S, E} ->
+                                            lists:append(Dates, [lists:sublist(Table,S,E)]);
+                                        nomatch ->
+                                            Dates
+                                   end;
+                               
+                                _ ->
+                                   Dates
+                           end
+                        end, [], Tables);
+         {error, _} ->
+            []
+     end.
+
+rebuild_all_stats_int(#state{vhost=VHost}=State) ->
+    Fun = fun() ->
+             {ok, DBRef} = open_mysql_connection(State),
+             ok = delete_nonexistent_stats(DBRef, VHost),
+             case lists:filter(fun(Date) ->
+                                 case catch rebuild_stats_at_int(DBRef, VHost, Date) of
+                                      ok -> false;
+                                      error -> true;
+                                      {'EXIT', _} -> true
+                                 end
+                             end, get_dates_int(DBRef, VHost)) of
+                  [] -> ok;
+                  FTables ->
+                     ?ERROR_MSG("Failed to rebuild stats for ~p dates", [FTables]),
+                     error
+             end,
+             close_mysql_connection(DBRef)
+          end,
+    spawn(Fun).
+
+rebuild_stats_at_int(DBRef, VHost, Date) ->
+    TempTable =  temp_table(VHost),
+    Fun = fun() ->
+           Table = messages_table(VHost, Date),
+           STable = stats_table(VHost),
+
+           DQuery = [ "DELETE FROM ",STable," ",
+                          "WHERE at='",Date,"';"],
+
+           ok = create_temp_table(DBRef, TempTable),
+           {updated, _} = sql_query_internal(DBRef, ["LOCK TABLE ",Table," WRITE, ",TempTable," WRITE;"]),
+           SQuery = ["INSERT INTO ",TempTable," ",
+                     "(owner_id,peer_name_id,peer_server_id,at,count) ",
+                         "SELECT owner_id,peer_name_id,peer_server_id,\"",Date,"\",count(*) ",
+                            "FROM ",Table," GROUP BY owner_id,peer_name_id,peer_server_id;"],
+           case sql_query_internal(DBRef, SQuery) of
+                  {updated, 0} ->
+                      Count = sql_query_internal(DBRef, ["SELECT count(*) FROM ",Table,";"]),
+                      case Count of
+                        {data, [["0"]]} ->
+                           {updated, _} = sql_query_internal(DBRef, ["DROP TABLE ",Table,";"]),
+                           {updated, _} = sql_query_internal(DBRef, ["LOCK TABLE ",STable," WRITE;"]),
+                           {updated, _} = sql_query_internal(DBRef, DQuery),
+                           ok;
+                        _ ->
+                           ?ERROR_MSG("Failed to calculate stats for ~s table! Count was ~p.", [Date, Count]),
+                           error
+                      end;
+                  {updated, _} ->
+                      {updated, _} = sql_query_internal(DBRef, ["LOCK TABLE ",STable," WRITE, ",TempTable," WRITE;"]),
+                      {updated, _} = sql_query_internal(DBRef, DQuery),
+                      SQuery1 = ["INSERT INTO ",STable," ",
+                                  "(owner_id,peer_name_id,peer_server_id,at,count) ",
+                                     "SELECT owner_id,peer_name_id,peer_server_id,at,count ",
+                                        "FROM ",TempTable,";"],
+                      case sql_query_internal(DBRef, SQuery1) of
+                           {updated, _} -> ok;
+                           {error, _} -> error
+                      end;
+                  {error, _} -> error
+           end
+       end,
+
+    case catch apply(Fun, []) of
+         ok ->
+           ?INFO_MSG("Rebuilded stats for ~p at ~p", [VHost, Date]),
+           ok;
+         error ->
+           error;
+         {'EXIT', Reason} ->
+           ?ERROR_MSG("Failed to rebuild stats for ~s table: ~p.", [Date, Reason]),
+           error
+    end,
+    sql_query_internal(DBRef, ["UNLOCK TABLES;"]),
+    sql_query_internal(DBRef, ["DROP TABLE ",TempTable,";"]),
+    ok.
+
+
+delete_nonexistent_stats(DBRef, VHost) ->
+    Dates = get_dates_int(DBRef, VHost),
+    STable = stats_table(VHost),
+
+    Temp = lists:flatmap(fun(Date) ->
+                             ["\"",Date,"\"",","]
+                         end, Dates),
+
+    case Temp of
+         [] ->
+           ok;
+         _ ->
+           % replace last "," with ");"
+           Temp1 = lists:append([lists:sublist(Temp, length(Temp)-1), ");"]),
+           Query = ["DELETE FROM ",STable," ",
+                       "WHERE at NOT IN (", Temp1],
+           case sql_query_internal(DBRef, Query) of
+                {updated, _} ->
+                    ok;
+                {error, _} ->
+                    error
+           end
+    end.
+
+get_user_stats_int(DBRef, User, VHost) ->
+    SName = stats_table(VHost),
+    Query = ["SELECT at, sum(count) as allcount ",
+                "FROM ",SName," ",
+                "WHERE owner_id=\"",get_user_id(DBRef, VHost, User),"\" ",
+                "GROUP BY at "
+                "ORDER BY DATE(at) DESC;"
+            ],
+    case sql_query_internal(DBRef, Query) of
+         {data, Result} ->
+            {ok, [ {Date, list_to_integer(Count)} || [Date, Count] <- Result]};
+         {error, Result} ->
+            {error, Result}
+    end.
+
+delete_all_messages_by_user_at_int(DBRef, User, VHost, Date) ->
+    DQuery = ["DELETE FROM ",messages_table(VHost, Date)," ",
+                 "WHERE owner_id=(SELECT user_id FROM ",users_table(VHost)," WHERE username=\"",User,"\");"],
+    case sql_query_internal(DBRef, DQuery) of
+         {updated, _} ->
+            ?INFO_MSG("Dropped messages for ~s@~s at ~s", [User, VHost, Date]),
+            ok;
+         {error, _} ->
+            error
+    end.
+
+delete_all_stats_by_user_int(DBRef, User, VHost) ->
+    SQuery = ["DELETE FROM ",stats_table(VHost)," ",
+                "WHERE owner_id=(SELECT user_id FROM ",users_table(VHost)," WHERE username=\"",User,"\");"],
+    case sql_query_internal(DBRef, SQuery) of
+         {updated, _} ->
+             ?INFO_MSG("Dropped all stats for ~s@~s", [User, VHost]),
+             ok;
+         {error, _} -> error
+    end.
+
+delete_stats_by_user_at_int(DBRef, User, VHost, Date) ->
+    SQuery = ["DELETE FROM ",stats_table(VHost)," ",
+                "WHERE owner_id=(SELECT user_id FROM ",users_table(VHost)," WHERE username=\"",User,"\") ",
+                  "AND at=\"",Date,"\";"],
+   case sql_query_internal(DBRef, SQuery) of
+         {updated, _} ->
+             ?INFO_MSG("Dropped stats for ~s@~s at ~s", [User, VHost, Date]),
+             ok;
+         {error, _} -> error
+    end.
+
+delete_user_settings_int(DBRef, User, VHost) ->
+    Query = ["DELETE FROM ",settings_table(VHost)," ",
+                 "WHERE owner_id=(SELECT user_id FROM ",users_table(VHost)," WHERE username=\"",User,"\");"],
+    case sql_query_internal(DBRef, Query) of
+         {updated, _} ->
+            ?INFO_MSG("Dropped ~s@~s settings", [User, VHost]),
+            ok;
+         {error, Reason} ->
+            ?ERROR_MSG("Failed to drop ~s@~s settings: ~p", [User, VHost, Reason]),
+            error
+    end.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% tables internals
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+create_temp_table(DBRef, Name) ->
+    Query = ["CREATE TABLE ",Name," (",
+                "owner_id MEDIUMINT UNSIGNED, ",
+                "peer_name_id MEDIUMINT UNSIGNED, ",
+                "peer_server_id MEDIUMINT UNSIGNED, ",
+                "at VARCHAR(11), ",
+                "count INT(11) ",
+             ") ENGINE=MyISAM CHARACTER SET utf8;"
+            ],
+    case sql_query_internal(DBRef, Query) of
+         {updated, _} -> ok;
+         {error, _Reason} -> error
+    end.
+
+create_stats_table(#state{dbref=DBRef, vhost=VHost}=State) ->
+    SName = stats_table(VHost),
+    Query = ["CREATE TABLE ",SName," (",
+                "owner_id MEDIUMINT UNSIGNED, ",
+                "peer_name_id MEDIUMINT UNSIGNED, ",
+                "peer_server_id MEDIUMINT UNSIGNED, ",
+                "at varchar(20), ",
+                "count int(11), ",
+                "INDEX(owner_id, peer_name_id, peer_server_id), ",
+                "INDEX(at)"
+             ") ENGINE=InnoDB CHARACTER SET utf8;"
+            ],
+    case sql_query_internal_silent(DBRef, Query) of
+         {updated, _} ->
+            ?INFO_MSG("Created stats table for ~p", [VHost]),
+            rebuild_all_stats_int(State),
+            ok;
+         {error, Reason} ->
+            case regexp:match(Reason, "#42S01") of
+                 {match, _, _} ->
+                   ?MYDEBUG("Stats table for ~p already exists", [VHost]),
+                   CheckQuery = ["SHOW COLUMNS FROM ",SName," LIKE 'peer_%_id';"],
+                   case sql_query_internal(DBRef, CheckQuery) of
+                        {data, Elems} when length(Elems) == 2 ->
+                          ?MYDEBUG("Stats table structure is ok", []),
+                          ok;
+                        _ ->
+                          ?INFO_MSG("It seems like stats table structure is invalid. I will drop it and recreate", []),
+                          case sql_query_internal(DBRef, ["DROP TABLE ",SName,";"]) of
+                               {updated, _} ->
+                                  ?INFO_MSG("Successfully dropped ~p", [SName]);
+                               _ ->
+                                  ?ERROR_MSG("Failed to drop ~p. You should drop it and restart module", [SName])
+                          end,
+                          error
+                   end;
+                 _ ->
+                   ?ERROR_MSG("Failed to create stats table for ~p: ~p", [VHost, Reason]),
+                   error
+            end
+    end.
+
+create_settings_table(#state{dbref=DBRef, vhost=VHost}) ->
+    SName = settings_table(VHost),
+    Query = ["CREATE TABLE IF NOT EXISTS ",SName," (",
+                "owner_id MEDIUMINT UNSIGNED PRIMARY KEY, ",
+                "dolog_default TINYINT(1) NOT NULL DEFAULT 1, ",
+                "dolog_list TEXT, ",
+                "donotlog_list TEXT ",
+             ") ENGINE=InnoDB CHARACTER SET utf8;"
+            ],
+    case sql_query_internal(DBRef, Query) of
+         {updated, _} ->
+            ?MYDEBUG("Created settings table for ~p", [VHost]),
+            ok;
+         {error, _} ->
+            error
+    end.
+
+create_users_table(#state{dbref=DBRef, vhost=VHost}) ->
+    SName = users_table(VHost),
+    Query = ["CREATE TABLE IF NOT EXISTS ",SName," (",
+                "username TEXT NOT NULL, ",
+                "user_id MEDIUMINT UNSIGNED NOT NULL AUTO_INCREMENT UNIQUE, ",
+                "UNIQUE INDEX(username(",?INDEX_SIZE,")) ",
+             ") ENGINE=InnoDB CHARACTER SET utf8;"
+            ],
+    case sql_query_internal(DBRef, Query) of
+         {updated, _} ->
+            ?MYDEBUG("Created users table for ~p", [VHost]),
+            ets:new(ets_users_table(VHost), [named_table, set, public]),
+            %update_users_from_db(DBRef, VHost),
+            ok;
+         {error, _} ->
+            error
+    end.
+
+create_servers_table(#state{dbref=DBRef, vhost=VHost}) ->
+    SName = servers_table(VHost),
+    Query = ["CREATE TABLE IF NOT EXISTS ",SName," (",
+                "server TEXT NOT NULL, ",
+                "server_id MEDIUMINT UNSIGNED NOT NULL AUTO_INCREMENT UNIQUE, ",
+                "UNIQUE INDEX(server(",?INDEX_SIZE,")) ",
+             ") ENGINE=InnoDB CHARACTER SET utf8;"
+            ],
+    case sql_query_internal(DBRef, Query) of
+         {updated, _} ->
+            ?MYDEBUG("Created servers table for ~p", [VHost]),
+            ets:new(ets_servers_table(VHost), [named_table, set, public]),
+            update_servers_from_db(DBRef, VHost),
+            ok;
+         {error, _} ->
+            error
+    end.
+
+create_resources_table(#state{dbref=DBRef, vhost=VHost}) ->
+    RName = resources_table(VHost),
+    Query = ["CREATE TABLE IF NOT EXISTS ",RName," (",
+                "resource TEXT NOT NULL, ",
+                "resource_id MEDIUMINT UNSIGNED NOT NULL AUTO_INCREMENT UNIQUE, ",
+                "UNIQUE INDEX(resource(",?INDEX_SIZE,")) ",
+             ") ENGINE=InnoDB CHARACTER SET utf8;"
+            ],
+    case sql_query_internal(DBRef, Query) of
+         {updated, _} ->
+            ?MYDEBUG("Created resources table for ~p", [VHost]),
+            ets:new(ets_resources_table(VHost), [named_table, set, public]),
+            ok;
+         {error, _} ->
+            error
+    end.
+
+create_msg_table(DBRef, VHost, Date) ->
+    TName = messages_table(VHost, Date),
+    Query = ["CREATE TABLE ",TName," (",
+                "owner_id MEDIUMINT UNSIGNED, ",
+                "peer_name_id MEDIUMINT UNSIGNED, ",
+                "peer_server_id MEDIUMINT UNSIGNED, ",
+                "peer_resource_id MEDIUMINT(8) UNSIGNED, ",
+                "direction ENUM('to', 'from'), ",
+                "type ENUM('chat','error','groupchat','headline','normal') NOT NULL, ",
+                "subject TEXT, ",
+                "body TEXT, ",
+                "timestamp DOUBLE, ",
+                "INDEX search_i (owner_id, peer_name_id, peer_server_id, peer_resource_id), ",
+                "FULLTEXT (body) "
+             ") ENGINE=MyISAM CHARACTER SET utf8;"
+            ],
+    case sql_query_internal(DBRef, Query) of
+         {updated, _MySQLRes} ->
+            ?MYDEBUG("Created msg table for ~p at ~p", [VHost, Date]),
+            ok;
+         {error, _} ->
+            error
+    end.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% internal ets cache (users, servers, resources)
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+update_servers_from_db(DBRef, VHost) ->
+   ?INFO_MSG("Reading servers from db for ~p", [VHost]),
+   SQuery = ["SELECT server, server_id FROM ",servers_table(VHost),";"],
+   {data, Result} = sql_query_internal(DBRef, SQuery),
+   true = ets:delete_all_objects(ets_servers_table(VHost)),
+   true = ets:insert(ets_servers_table(VHost), [ {Server, Server_id} || [Server, Server_id] <- Result]).
+
+%update_users_from_db(DBRef, VHost) ->
+%   ?INFO_MSG("Reading users from db for ~p", [VHost]),
+%   SQuery = ["SELECT username, user_id FROM ",users_table(VHost),";"],
+%   {data, Result} = sql_query_internal(DBRef, SQuery),
+%   true = ets:delete_all_objects(ets_users_table(VHost)),
+%   true = ets:insert(ets_users_table(VHost), [ {Username, User_id} || [Username, User_id] <- Result]).
+
+%get_user_name(DBRef, VHost, User_id) ->
+%  case ets:match(ets_users_table(VHost), {'$1', User_id}) of
+%       [[User]] -> User;
+%       % this can be in clustered environment
+%       [] ->
+%         %update_users_from_db(DBRef, VHost),
+%         SQuery = ["SELECT username FROM ",users_table(VHost)," ",
+%                             "WHERE user_id=\"",User_id,"\";"],
+%         {data, [[Name]]} = sql_query_internal(DBRef, SQuery),
+%         % cache {user, id} pair
+%         ets:insert(ets_users_table(VHost), {Name, User_id}),
+%         Name
+%  end.
+
+%get_server_name(DBRef, VHost, Server_id) ->
+%  case ets:match(ets_servers_table(VHost), {'$1', Server_id}) of
+%       [[Server]] -> Server;
+       % this can be in clustered environment
+%       [] ->
+%         update_servers_from_db(DBRef, VHost),
+%         [[Server1]] = ets:match(ets_servers_table(VHost), {'$1', Server_id}),
+%         Server1
+%  end.
+
+get_user_id_from_db(DBRef, VHost, User) ->
+  SQuery = ["SELECT user_id FROM ",users_table(VHost)," ",
+               "WHERE username=\"",User,"\";"],
+  case sql_query_internal(DBRef, SQuery) of
+       % no such user in db
+       {data, []} ->
+          {ok, []};
+       {data, [[DBId]]} ->
+          % cache {user, id} pair
+          ets:insert(ets_users_table(VHost), {User, DBId}),
+          {ok, DBId}
+  end.
+get_user_id(DBRef, VHost, User) ->
+  % Look at ets
+  case ets:match(ets_users_table(VHost), {User, '$1'}) of
+       [] ->
+         % Look at db
+         case get_user_id_from_db(DBRef, VHost, User) of
+              % no such user in db
+              {ok, []} ->
+                 IQuery = ["INSERT INTO ",users_table(VHost)," ",
+                              "SET username=\"",User,"\";"],
+                 case sql_query_internal_silent(DBRef, IQuery) of
+                      {updated, _} ->
+                          {ok, NewId} = get_user_id_from_db(DBRef, VHost, User),
+                          NewId;
+                      {error, Reason} ->
+                          % this can be in clustered environment
+                          {match, _, _} = regexp:match(Reason, "#23000"),
+                          ?ERROR_MSG("Duplicate key name for ~p", [User]),
+                          {ok, ClID} = get_user_id_from_db(DBRef, VHost, User),
+                          ClID
+                 end;
+              {ok, DBId} ->
+                 DBId
+         end;
+       [[EtsId]] -> EtsId
+  end.
+
+get_server_id(DBRef, VHost, Server) ->
+  case ets:match(ets_servers_table(VHost), {Server, '$1'}) of
+       [] ->
+        IQuery = ["INSERT INTO ",servers_table(VHost)," ",
+                     "SET server=\"",Server,"\";"],
+        case sql_query_internal_silent(DBRef, IQuery) of
+             {updated, _} ->
+                SQuery = ["SELECT server_id FROM ",servers_table(VHost)," ",
+                             "WHERE server=\"",Server,"\";"],
+                {data, [[Id]]} = sql_query_internal(DBRef, SQuery),
+                ets:insert(ets_servers_table(VHost), {Server, Id}),
+                Id;
+             {error, Reason} ->
+                % this can be in clustered environment
+                {match, _, _} = regexp:match(Reason, "#23000"),
+                ?ERROR_MSG("Duplicate key name for ~p", [Server]),
+                update_servers_from_db(DBRef, VHost),
+                [[Id1]] = ets:match(ets_servers_table(VHost), {Server, '$1'}),
+                Id1
+        end;
+       [[Id]] -> Id
+  end.
+
+get_resource_id_from_db(DBRef, VHost, Resource) ->
+  SQuery = ["SELECT resource_id FROM ",resources_table(VHost)," ",
+               "WHERE resource=\"",ejabberd_odbc:escape(Resource),"\";"],
+  case sql_query_internal(DBRef, SQuery) of
+       % no such resource in db
+       {data, []} ->
+          {ok, []};
+       {data, [[DBId]]} ->
+          % cache {resource, id} pair
+          ets:insert(ets_resources_table(VHost), {Resource, DBId}),
+          {ok, DBId}
+  end.
+get_resource_id(DBRef, VHost, Resource) ->
+  % Look at ets
+  case ets:match(ets_resources_table(VHost), {Resource, '$1'}) of
+       [] ->
+         % Look at db
+         case get_resource_id_from_db(DBRef, VHost, Resource) of
+              % no such resource in db
+              {ok, []} ->
+                 IQuery = ["INSERT INTO ",resources_table(VHost)," ",
+                              "SET resource=\"",ejabberd_odbc:escape(Resource),"\";"],
+                 case sql_query_internal_silent(DBRef, IQuery) of
+                      {updated, _} ->
+                          {ok, NewId} = get_resource_id_from_db(DBRef, VHost, Resource),
+                          NewId;
+                      {error, Reason} ->
+                          % this can be in clustered environment
+                          {match, _, _} = regexp:match(Reason, "#23000"),
+                          ?ERROR_MSG("Duplicate key name for ~p", [Resource]),
+                          {ok, ClID} = get_resource_id_from_db(DBRef, VHost, Resource),
+                          ClID
+                 end;
+              {ok, DBId} ->
+                 DBId
+         end;
+       [[EtsId]] -> EtsId
+  end.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% SQL internals 
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+sql_query_internal(DBRef, Query) ->
+    case sql_query_internal_silent(DBRef, Query) of
+         {error, Reason} ->
+            ?ERROR_MSG("~p while ~p", [Reason, lists:append(Query)]),
+            {error, Reason};
+         Rez -> Rez
+    end.
+
+sql_query_internal_silent(DBRef, Query) ->
+    ?MYDEBUG("DOING: \"~s\"", [lists:append(Query)]),
+    get_result(mysql_conn:fetch(DBRef, Query, self(), ?MYSQL_TIMEOUT)).
+
+get_result({updated, MySQLRes}) ->
+    {updated, mysql:get_result_affected_rows(MySQLRes)};
+get_result({data, MySQLRes}) ->
+    {data, mysql:get_result_rows(MySQLRes)};
+get_result({error, "query timed out"}) ->
+    {error, "query timed out"};
+get_result({error, MySQLRes}) ->
+    Reason = mysql:get_result_reason(MySQLRes),
+    {error, Reason}.
--- mod_logdb_mysql5.erl.orig	2009-02-05 19:21:29.000000000 +0200
+++ mod_logdb_mysql5.erl	2009-02-05 19:20:14.000000000 +0200
@@ -0,0 +1,978 @@
+%%%----------------------------------------------------------------------
+%%% File    : mod_logdb_mysql5.erl
+%%% Author  : Oleg Palij (mailto,xmpp:o.palij@gmail.com)
+%%% Purpose : MySQL 5 backend for mod_logdb
+%%% Version : trunk
+%%% Id      : $Id: mod_logdb_mysql5.erl 1253 2009-02-02 11:10:03Z malik $
+%%% Url     : http://www.dp.uz.gov.ua/o.palij/mod_logdb/
+%%%----------------------------------------------------------------------
+
+-module(mod_logdb_mysql5).
+-author('o.palij@gmail.com').
+
+-include("mod_logdb.hrl").
+-include("ejabberd.hrl").
+-include("jlib.hrl").
+
+-behaviour(gen_logdb).
+-behaviour(gen_server).
+
+% gen_server
+-export([code_change/3,handle_call/3,handle_cast/2,handle_info/2,init/1,terminate/2]).
+% gen_mod
+-export([start/2, stop/1]).
+% gen_logdb
+-export([log_message/2,
+         rebuild_stats/1,
+         rebuild_stats_at/2,
+         delete_messages_by_user_at/3, delete_all_messages_by_user_at/3, delete_messages_at/2,
+         get_vhost_stats/1, get_vhost_stats_at/2, get_user_stats/2, get_user_messages_at/3,
+         get_dates/1,
+         get_users_settings/1, get_user_settings/2, set_user_settings/3,
+         drop_user/2]).
+
+% gen_server call timeout
+-define(CALL_TIMEOUT, 30000).
+-define(MYSQL_TIMEOUT, 60000).
+-define(INDEX_SIZE, integer_to_list(170)).
+-define(PROCNAME, mod_logdb_mysql5).
+
+-import(mod_logdb, [list_to_bool/1, bool_to_list/1,
+                    list_to_string/1, string_to_list/1,
+                    convert_timestamp_brief/1]).
+
+-record(state, {dbref, vhost, server, port, db, user, password}).
+
+% replace "." with "_"
+escape_vhost(VHost) -> lists:map(fun(46) -> 95;
+                                    (A) -> A
+                                 end, VHost).
+prefix() ->
+   "`logdb_".
+
+suffix(VHost) ->
+   "_" ++ escape_vhost(VHost) ++ "`".
+
+messages_table(VHost, Date) ->
+   prefix() ++ "messages_" ++ Date ++ suffix(VHost).
+
+% TODO: this needs to be redone to unify view name in stored procedure and in delete_messages_at/2
+view_table(VHost, Date) ->
+   Table = messages_table(VHost, Date),
+   TablewoQ = lists:sublist(Table, 2, length(Table) - 2),
+   lists:append(["`v_", TablewoQ, "`"]).
+
+stats_table(VHost) ->
+   prefix() ++ "stats" ++ suffix(VHost).
+
+temp_table(VHost) ->
+   prefix() ++ "temp" ++ suffix(VHost).
+
+settings_table(VHost) ->
+   prefix() ++ "settings" ++ suffix(VHost).
+
+users_table(VHost) ->
+   prefix() ++ "users" ++ suffix(VHost).
+servers_table(VHost) ->
+   prefix() ++ "servers" ++ suffix(VHost).
+resources_table(VHost) ->
+   prefix() ++ "resources" ++ suffix(VHost).
+
+logmessage_name(VHost) ->
+   prefix() ++ "logmessage" ++ suffix(VHost).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_mod callbacks
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+start(VHost, Opts) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:start({local, Proc}, ?MODULE, [VHost, Opts], []).
+
+stop(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {stop}, ?CALL_TIMEOUT).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_server callbacks
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+init([VHost, Opts]) ->
+   crypto:start(),
+
+   Server = gen_mod:get_opt(server, Opts, "localhost"),
+   Port = gen_mod:get_opt(port, Opts, 3306),
+   DB = gen_mod:get_opt(db, Opts, "logdb"),
+   User = gen_mod:get_opt(user, Opts, "root"),
+   Password = gen_mod:get_opt(password, Opts, ""),
+
+   St = #state{vhost=VHost,
+               server=Server, port=Port, db=DB,
+               user=User, password=Password},
+
+   case open_mysql_connection(St) of
+       {ok, DBRef} ->
+           State = St#state{dbref=DBRef},
+           ok = create_internals(State),
+           ok = create_stats_table(State),
+           ok = create_settings_table(State),
+           ok = create_users_table(State),
+           ok = create_servers_table(State),
+           ok = create_resources_table(State),
+           erlang:monitor(process, DBRef),
+           {ok, State};
+       {error, Reason} ->
+           ?ERROR_MSG("MySQL connection failed: ~p~n", [Reason]),
+           {stop, db_connection_failed}
+   end.
+
+open_mysql_connection(#state{server=Server, port=Port, db=DB,
+                             user=DBUser, password=Password} = _State) ->
+   LogFun = fun(debug, _Format, _Argument) ->
+                 %?MYDEBUG(Format, Argument);
+                 ok;
+               (error, Format, Argument) ->
+                 ?ERROR_MSG(Format, Argument);
+               (Level, Format, Argument) ->
+                 ?MYDEBUG("MySQL (~p)~n", [Level]),
+                 ?MYDEBUG(Format, Argument)
+            end,
+   mysql_conn:start(Server, Port, DBUser, Password, DB, [65536, 131072], LogFun).
+
+close_mysql_connection(DBRef) ->
+   ?MYDEBUG("Closing ~p mysql connection", [DBRef]),
+   mysql_conn:stop(DBRef).
+
+handle_call({rebuild_stats_at, Date}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    Reply = rebuild_stats_at_int(DBRef, VHost, Date),
+    {reply, Reply, State};
+handle_call({delete_messages_by_user_at, [], _Date}, _From, State) ->
+    {reply, error, State};
+handle_call({delete_messages_by_user_at, Msgs, Date}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    Temp = lists:flatmap(fun(#msg{timestamp=Timestamp} = _Msg) ->
+                             ["\"",Timestamp,"\"",","]
+                         end, Msgs),
+
+    Temp1 = lists:append([lists:sublist(Temp, length(Temp)-1), ");"]),
+
+    Query = ["DELETE FROM ",messages_table(VHost, Date)," ",
+                             "WHERE timestamp IN (", Temp1],
+
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {updated, Aff} ->
+              ?MYDEBUG("Aff=~p", [Aff]),
+              rebuild_stats_at_int(DBRef, VHost, Date);
+           {error, _} ->
+              error
+      end,
+    {reply, Reply, State};
+handle_call({delete_all_messages_by_user_at, User, Date}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    ok = delete_all_messages_by_user_at_int(DBRef, User, VHost, Date),
+    ok = delete_stats_by_user_at_int(DBRef, User, VHost, Date),
+    {reply, ok, State};
+handle_call({delete_messages_at, Date}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    Fun = fun() ->
+              {updated, _} = sql_query_internal(DBRef, ["DROP TABLE ",messages_table(VHost, Date),";"]),
+              TQuery = ["DELETE FROM ",stats_table(VHost)," "
+                           "WHERE at=\"",Date,"\";"],
+              {updated, _} = sql_query_internal(DBRef, TQuery),
+              VQuery = ["DROP VIEW IF EXISTS ",view_table(VHost,Date),";"],
+              {updated, _} = sql_query_internal(DBRef, VQuery),
+              ok
+          end,
+    Reply =
+      case catch apply(Fun, []) of
+           ok ->
+              ok;
+           {'EXIT', _} ->
+              error
+      end,
+    {reply, Reply, State};
+handle_call({get_vhost_stats}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    SName = stats_table(VHost),
+    Query = ["SELECT at, sum(count) ",
+                "FROM ",SName," ",
+                "GROUP BY at ",
+                "ORDER BY DATE(at) DESC;"
+            ],
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {data, Result} ->
+              {ok, [ {Date, list_to_integer(Count)} || [Date, Count] <- Result ]};
+           {error, Reason} ->
+              % TODO: Duplicate error message ?
+              {error, Reason}
+      end,
+    {reply, Reply, State};
+handle_call({get_vhost_stats_at, Date}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    SName = stats_table(VHost),
+    Query = ["SELECT username, sum(count) as allcount ",
+                "FROM ",SName," ",
+                "JOIN ",users_table(VHost)," ON owner_id=user_id "
+                "WHERE at=\"",Date,"\" ",
+                "GROUP BY username ",
+                "ORDER BY allcount DESC;"
+            ],
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {data, Result} ->
+              {ok, [ {User, list_to_integer(Count)} || [User, Count] <- Result ]};
+           {error, Reason} ->
+              {error, Reason}
+      end,
+    {reply, Reply, State};
+handle_call({get_user_stats, User}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    {reply, get_user_stats_int(DBRef, User, VHost), State};
+handle_call({get_user_messages_at, User, Date}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    Query = ["SELECT peer_name,",
+                    "peer_server,",
+                    "peer_resource,",
+                    "direction,"
+                    "type,"
+                    "subject,"
+                    "body,"
+                    "timestamp "
+               "FROM ",view_table(VHost, Date)," "
+               "WHERE owner_name=\"",User,"\";"],
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {data, Result} ->
+              Fun = fun([Peer_name, Peer_server, Peer_resource,
+                         Direction,
+                         Type,
+                         Subject, Body,
+                         Timestamp]) ->
+                          #msg{peer_name=Peer_name, peer_server=Peer_server, peer_resource=Peer_resource,
+                               direction=list_to_atom(Direction),
+                               type=Type,
+                               subject=Subject, body=Body,
+                               timestamp=Timestamp}
+                    end,
+              {ok, lists:map(Fun, Result)};
+           {error, Reason} ->
+              {error, Reason}
+      end,
+    {reply, Reply, State};
+handle_call({get_dates}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    SName = stats_table(VHost),
+    Query = ["SELECT at ",
+                "FROM ",SName," ",
+                "GROUP BY at ",
+                "ORDER BY DATE(at) DESC;"
+            ],
+    Reply =
+       case sql_query_internal(DBRef, Query) of
+            {data, Result} ->
+               [ Date || [Date] <- Result ];
+            {error, Reason} ->
+               {error, Reason}
+       end,
+    {reply, Reply, State};
+handle_call({get_users_settings}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    Query = ["SELECT username,dolog_default,dolog_list,donotlog_list ",
+                "FROM ",settings_table(VHost)," ",
+             "JOIN ",users_table(VHost)," ON user_id=owner_id;"],
+    Reply = 
+      case sql_query_internal(DBRef, Query) of
+           {data, Result} ->
+              {ok, lists:map(fun([Owner, DoLogDef, DoLogL, DoNotLogL]) ->
+                                 #user_settings{owner_name=Owner,
+                                                dolog_default=list_to_bool(DoLogDef),
+                                                dolog_list=string_to_list(DoLogL),
+                                                donotlog_list=string_to_list(DoNotLogL)
+                                               }
+                             end, Result)};
+           {error, _} ->
+              error
+      end,
+    {reply, Reply, State};
+handle_call({get_user_settings, User}, _From, #state{dbref=DBRef, vhost=VHost}=State) ->
+    Query = ["SELECT dolog_default,dolog_list,donotlog_list FROM ",settings_table(VHost)," ",
+                 "WHERE owner_id=(SELECT user_id FROM ",users_table(VHost)," WHERE username=\"",User,"\");"],
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {data, []} ->
+              {ok, []};
+           {data, [[Owner, DoLogDef, DoLogL, DoNotLogL]]} ->
+              {ok, #user_settings{owner_name=Owner,
+                                  dolog_default=list_to_bool(DoLogDef),
+                                  dolog_list=string_to_list(DoLogL),
+                                  donotlog_list=string_to_list(DoNotLogL)}};
+           {error, _} ->
+              error
+      end,
+    {reply, Reply, State};
+handle_call({set_user_settings, User, #user_settings{dolog_default=DoLogDef,
+                                                     dolog_list=DoLogL,
+                                                     donotlog_list=DoNotLogL}},
+            _From, #state{dbref=DBRef, vhost=VHost} = State) ->
+    User_id = get_user_id(DBRef, VHost, User),
+    Query = ["UPDATE ",settings_table(VHost)," ",
+                "SET dolog_default=",bool_to_list(DoLogDef),", ",
+                    "dolog_list='",list_to_string(DoLogL),"', ",
+                    "donotlog_list='",list_to_string(DoNotLogL),"' ",
+                "WHERE owner_id=",User_id,";"],
+
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {updated, 0} ->
+              IQuery = ["INSERT INTO ",settings_table(VHost)," ",
+                            "(owner_id, dolog_default, dolog_list, donotlog_list) ",
+                            "VALUES ",
+                            "(",User_id,",",bool_to_list(DoLogDef),",'",list_to_string(DoLogL),"','",list_to_string(DoNotLogL),"');"],
+              case sql_query_internal_silent(DBRef, IQuery) of
+                   {updated, _} ->
+                       ?MYDEBUG("New settings for ~s@~s", [User, VHost]),
+                       ok;
+                   {error, Reason} ->
+                       case regexp:match(Reason, "#23000") of
+                            % Already exists
+                            {match, _, _} ->
+                                ok;
+                             _ ->
+                                ?ERROR_MSG("Failed setup user ~p@~p: ~p", [User, VHost, Reason]),
+                                error
+                       end
+              end;
+           {updated, 1} ->
+              ?MYDEBUG("Updated settings for ~s@~s", [User, VHost]),
+              ok;
+           {error, _} ->
+              error
+      end,
+    {reply, Reply, State};
+handle_call({stop}, _From, #state{vhost=VHost}=State) ->
+   ?MYDEBUG("Stoping mysql5 backend for ~p", [VHost]),
+   {stop, normal, ok, State};
+handle_call(Msg, _From, State) ->
+    ?INFO_MSG("Got call Msg: ~p, State: ~p", [Msg, State]),
+    {noreply, State}.
+
+handle_cast({log_message, Msg}, #state{dbref=DBRef, vhost=VHost}=State) ->
+    Fun = fun() ->
+            Date = convert_timestamp_brief(Msg#msg.timestamp),
+            TableName = messages_table(VHost, Date),
+
+            Query = [ "CALL ",logmessage_name(VHost)," "
+                         "('", TableName, "',",
+                         "'", Date, "',",
+                         "'", Msg#msg.owner_name, "',",
+                         "'", Msg#msg.peer_name, "',",
+                         "'", Msg#msg.peer_server, "',",
+                         "'", ejabberd_odbc:escape(Msg#msg.peer_resource), "',",
+                         "'", atom_to_list(Msg#msg.direction), "',",
+                         "'", Msg#msg.type, "',",
+                         "'", ejabberd_odbc:escape(Msg#msg.subject), "',",
+                         "'", ejabberd_odbc:escape(Msg#msg.body), "',",
+                         "'", Msg#msg.timestamp, "');"],
+
+            case sql_query_internal(DBRef, Query) of
+                 {updated, _} ->
+                    ?MYDEBUG("Logged ok for ~p, peer: ~p", [Msg#msg.owner_name++"@"++VHost,
+                                                            Msg#msg.peer_name++"@"++Msg#msg.peer_server]),
+                    ok;
+                 {error, _Reason} ->
+                    error
+            end
+          end,
+    spawn(Fun),
+    {noreply, State};
+handle_cast({rebuild_stats}, State) ->
+    rebuild_all_stats_int(State),
+    {noreply, State};
+handle_cast({drop_user, User}, #state{vhost=VHost} = State) ->
+    Fun = fun() ->
+            {ok, DBRef} = open_mysql_connection(State),
+            {ok, Dates} = get_user_stats_int(DBRef, User, VHost),
+            MDResult = lists:map(fun({Date, _}) ->
+                           delete_all_messages_by_user_at_int(DBRef, User, VHost, Date)
+                       end, Dates),
+            StDResult = delete_all_stats_by_user_int(DBRef, User, VHost),
+            SDResult = delete_user_settings_int(DBRef, User, VHost),
+            case lists:all(fun(Result) when Result == ok ->
+                                true;
+                              (Result) when Result == error ->
+                               false
+                           end, lists:append([MDResult, [StDResult], [SDResult]])) of
+                 true ->
+                   ?INFO_MSG("Removed ~s@~s", [User, VHost]);
+                 false ->
+                   ?ERROR_MSG("Failed to remove ~s@~s", [User, VHost])
+            end,
+            close_mysql_connection(DBRef)
+          end,
+    spawn(Fun),
+    {noreply, State};
+handle_cast(Msg, State) ->
+    ?INFO_MSG("Got cast Msg:~p, State:~p", [Msg, State]),
+    {noreply, State}.
+
+handle_info({'DOWN', _MonitorRef, process, _Pid, _Info}, State) ->
+    {stop, connection_dropped, State};
+handle_info(Info, State) ->
+    ?INFO_MSG("Got Info:~p, State:~p", [Info, State]),
+    {noreply, State}.
+
+terminate(_Reason, #state{dbref=DBRef}=_State) ->
+    close_mysql_connection(DBRef),
+    ok.
+
+code_change(_OldVsn, State, _Extra) ->
+    {ok, State}.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_logdb callbacks
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+log_message(VHost, Msg) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:cast(Proc, {log_message, Msg}).
+rebuild_stats(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:cast(Proc, {rebuild_stats}).
+rebuild_stats_at(VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {rebuild_stats_at, Date}, ?CALL_TIMEOUT).
+delete_messages_by_user_at(VHost, Msgs, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {delete_messages_by_user_at, Msgs, Date}, ?CALL_TIMEOUT).
+delete_all_messages_by_user_at(User, VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {delete_all_messages_by_user_at, User, Date}, ?CALL_TIMEOUT).
+delete_messages_at(VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {delete_messages_at, Date}, ?CALL_TIMEOUT).
+get_vhost_stats(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_vhost_stats}, ?CALL_TIMEOUT).
+get_vhost_stats_at(VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_vhost_stats_at, Date}, ?CALL_TIMEOUT).
+get_user_stats(User, VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_user_stats, User}, ?CALL_TIMEOUT).
+get_user_messages_at(User, VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_user_messages_at, User, Date}, ?CALL_TIMEOUT).
+get_dates(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_dates}, ?CALL_TIMEOUT).
+get_users_settings(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_users_settings}, ?CALL_TIMEOUT).
+get_user_settings(User, VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_user_settings, User}, ?CALL_TIMEOUT).
+set_user_settings(User, VHost, Set) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {set_user_settings, User, Set}, ?CALL_TIMEOUT).
+drop_user(User, VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:cast(Proc, {drop_user, User}).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% internals
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+get_dates_int(DBRef, VHost) ->
+    case sql_query_internal(DBRef, ["SHOW TABLES"]) of
+         {data, Tables} ->
+            lists:foldl(fun([Table], Dates) ->
+                           Reg = lists:sublist(prefix(),2,length(prefix())) ++ ".*" ++ escape_vhost(VHost),
+                           case regexp:match(Table, Reg) of
+                                {match, 1, _} ->
+                                   case regexp:match(Table,"[0-9]+-[0-9]+-[0-9]+") of
+                                        {match, S, E} ->
+                                            lists:append(Dates, [lists:sublist(Table,S,E)]);
+                                        nomatch ->
+                                            Dates
+                                   end;
+                                _ ->
+                                   Dates
+                           end
+                        end, [], Tables);
+         {error, _} ->
+            []
+    end.
+
+rebuild_all_stats_int(#state{vhost=VHost}=State) ->
+    Fun = fun() ->
+             {ok, DBRef} = open_mysql_connection(State),
+             ok = delete_nonexistent_stats(DBRef, VHost),
+             case lists:filter(fun(Date) ->
+                                 case catch rebuild_stats_at_int(DBRef, VHost, Date) of
+                                      ok -> false;
+                                      error -> true;
+                                      {'EXIT', _} -> true
+                                 end
+                             end, get_dates_int(DBRef, VHost)) of
+                  [] -> ok;
+                  FTables ->
+                     ?ERROR_MSG("Failed to rebuild stats for ~p dates", [FTables]),
+                     error
+             end,
+             close_mysql_connection(DBRef)
+          end,
+    spawn(Fun).
+
+rebuild_stats_at_int(DBRef, VHost, Date) ->
+    TempTable = temp_table(VHost),
+    Fun = fun() ->
+           Table = messages_table(VHost, Date),
+           STable = stats_table(VHost),
+
+           DQuery = [ "DELETE FROM ",STable," ",
+                          "WHERE at='",Date,"';"],
+
+           ok = create_temp_table(DBRef, TempTable),
+           {updated, _} = sql_query_internal(DBRef, ["LOCK TABLE ",Table," WRITE, ",TempTable," WRITE;"]),
+           SQuery = ["INSERT INTO ",TempTable," ",
+                      "(owner_id,peer_name_id,peer_server_id,at,count) ",
+                         "SELECT owner_id,peer_name_id,peer_server_id,\"",Date,"\",count(*) ",
+                            "FROM ",Table," WHERE ext is NULL GROUP BY owner_id,peer_name_id,peer_server_id;"],
+           case sql_query_internal(DBRef, SQuery) of
+                  {updated, 0} ->
+                      Count = sql_query_internal(DBRef, ["SELECT count(*) FROM ",Table,";"]),
+                      case Count of
+                        {data, [["0"]]} ->
+                           {updated, _} = sql_query_internal(DBRef, ["DROP VIEW IF EXISTS ",view_table(VHost,Date),";"]),
+                           {updated, _} = sql_query_internal(DBRef, ["DROP TABLE ",Table,";"]),
+                           {updated, _} = sql_query_internal(DBRef, ["LOCK TABLE ",STable," WRITE;"]),
+                           {updated, _} = sql_query_internal(DBRef, DQuery),
+                           ok;
+                        _ ->
+                           ?ERROR_MSG("Failed to calculate stats for ~s table! Count was ~p.", [Date, Count]),
+                           error
+                      end;
+                  {updated, _} ->
+                      {updated, _} = sql_query_internal(DBRef, ["LOCK TABLE ",STable," WRITE, ",TempTable," WRITE;"]),
+                      {updated, _} = sql_query_internal(DBRef, DQuery),
+                      SQuery1 = ["INSERT INTO ",STable," ",
+                                  "(owner_id,peer_name_id,peer_server_id,at,count) ",
+                                     "SELECT owner_id,peer_name_id,peer_server_id,at,count ",
+                                        "FROM ",TempTable,";"],
+                      case sql_query_internal(DBRef, SQuery1) of
+                           {updated, _} -> ok;
+                           {error, _} -> error
+                      end;
+                  {error, _} -> error
+           end
+       end,
+
+    case catch apply(Fun, []) of
+         ok ->
+           ?INFO_MSG("Rebuilded stats for ~p at ~p", [VHost, Date]),
+           ok;
+         error ->
+           error;
+         {'EXIT', Reason} ->
+           ?ERROR_MSG("Failed to rebuild stats for ~s table: ~p.", [Date, Reason]),
+           error
+    end,
+    sql_query_internal(DBRef, ["UNLOCK TABLES;"]),
+    sql_query_internal(DBRef, ["DROP TABLE ",TempTable,";"]),
+    ok.
+
+delete_nonexistent_stats(DBRef, VHost) ->
+    Dates = get_dates_int(DBRef, VHost),
+    STable = stats_table(VHost),
+
+    Temp = lists:flatmap(fun(Date) ->
+                             ["\"",Date,"\"",","]
+                         end, Dates),
+    case Temp of
+         [] ->
+           ok;
+         _ ->
+           % replace last "," with ");"
+           Temp1 = lists:append([lists:sublist(Temp, length(Temp)-1), ");"]),
+           Query = ["DELETE FROM ",STable," ",
+                       "WHERE at NOT IN (", Temp1],
+           case sql_query_internal(DBRef, Query) of
+                {updated, _} ->
+                    ok;
+                {error, _} ->
+                    error
+           end
+    end.
+
+get_user_stats_int(DBRef, User, VHost) ->
+    SName = stats_table(VHost),
+    UName = users_table(VHost),
+    Query = ["SELECT stats.at, sum(stats.count) ",
+                "FROM ",UName," AS users ",
+                   "JOIN ",SName," AS stats ON owner_id=user_id "
+                "WHERE users.username=\"",User,"\" ",
+                "GROUP BY stats.at "
+                "ORDER BY DATE(stats.at) DESC;"
+            ],
+    case sql_query_internal(DBRef, Query) of
+         {data, Result} ->
+            {ok, [ {Date, list_to_integer(Count)} || [Date, Count] <- Result ]};
+         {error, Result} ->
+            {error, Result}
+    end.
+
+delete_all_messages_by_user_at_int(DBRef, User, VHost, Date) ->
+    DQuery = ["DELETE FROM ",messages_table(VHost, Date)," ",
+                 "WHERE owner_id=(SELECT user_id FROM ",users_table(VHost)," WHERE username=\"",User,"\");"],
+    case sql_query_internal(DBRef, DQuery) of
+         {updated, _} ->
+            ?INFO_MSG("Dropped messages for ~s@~s at ~s", [User, VHost, Date]),
+            ok;
+         {error, _} ->
+            error
+    end.
+
+delete_all_stats_by_user_int(DBRef, User, VHost) ->
+    SQuery = ["DELETE FROM ",stats_table(VHost)," ",
+                "WHERE owner_id=(SELECT user_id FROM ",users_table(VHost)," WHERE username=\"",User,"\");"],
+    case sql_query_internal(DBRef, SQuery) of
+         {updated, _} ->
+             ?INFO_MSG("Dropped all stats for ~s@~s", [User, VHost]),
+             ok;
+         {error, _} -> error
+    end.
+
+delete_stats_by_user_at_int(DBRef, User, VHost, Date) ->
+    SQuery = ["DELETE FROM ",stats_table(VHost)," ",
+                "WHERE owner_id=(SELECT user_id FROM ",users_table(VHost)," WHERE username=\"",User,"\") ",
+                  "AND at=\"",Date,"\";"],
+    case sql_query_internal(DBRef, SQuery) of
+         {updated, _} ->
+             ?INFO_MSG("Dropped stats for ~s@~s at ~s", [User, VHost, Date]),
+             ok;
+         {error, _} -> error
+    end.
+
+delete_user_settings_int(DBRef, User, VHost) ->
+    Query = ["DELETE FROM ",settings_table(VHost)," ",
+                 "WHERE owner_id=(SELECT user_id FROM ",users_table(VHost)," WHERE username=\"",User,"\");"],
+    case sql_query_internal(DBRef, Query) of
+         {updated, _} ->
+            ?INFO_MSG("Dropped ~s@~s settings", [User, VHost]),
+            ok;
+         {error, Reason} ->
+            ?ERROR_MSG("Failed to drop ~s@~s settings: ~p", [User, VHost, Reason]),
+            error
+    end.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% tables internals
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+create_temp_table(DBRef, Name) ->
+    Query = ["CREATE TABLE ",Name," (",
+                "owner_id MEDIUMINT UNSIGNED, ",
+                "peer_name_id MEDIUMINT UNSIGNED, ",
+                "peer_server_id MEDIUMINT UNSIGNED, ",
+                "at VARCHAR(11), ",
+                "count INT(11) ",
+             ") ENGINE=MyISAM CHARACTER SET utf8;"
+            ],
+    case sql_query_internal(DBRef, Query) of
+         {updated, _} -> ok;
+         {error, _Reason} -> error
+    end.
+
+create_stats_table(#state{dbref=DBRef, vhost=VHost}=State) ->
+    SName = stats_table(VHost),
+    Query = ["CREATE TABLE ",SName," (",
+                "owner_id MEDIUMINT UNSIGNED, ",
+                "peer_name_id MEDIUMINT UNSIGNED, ",
+                "peer_server_id MEDIUMINT UNSIGNED, ",
+                "at VARCHAR(11), ",
+                "count INT(11), ",
+                "ext INTEGER DEFAULT NULL, "
+                "INDEX ext_i (ext), "
+                "INDEX(owner_id,peer_name_id,peer_server_id), ",
+                "INDEX(at) ",
+             ") ENGINE=MyISAM CHARACTER SET utf8;"
+            ],
+    case sql_query_internal_silent(DBRef, Query) of
+         {updated, _} ->
+            ?MYDEBUG("Created stats table for ~p", [VHost]),
+            rebuild_all_stats_int(State),
+            ok;
+         {error, Reason} ->
+            case regexp:match(Reason, "#42S01") of
+                 {match, _, _} ->
+                   ?MYDEBUG("Stats table for ~p already exists", [VHost]),
+                   CheckQuery = ["SHOW COLUMNS FROM ",SName," LIKE 'peer_%_id';"],
+                   case sql_query_internal(DBRef, CheckQuery) of
+                        {data, Elems} when length(Elems) == 2 ->
+                          ?MYDEBUG("Stats table structure is ok", []),
+                          ok;
+                        _ ->
+                          ?INFO_MSG("It seems like stats table structure is invalid. I will drop it and recreate", []),
+                          case sql_query_internal(DBRef, ["DROP TABLE ",SName,";"]) of
+                               {updated, _} ->
+                                  ?INFO_MSG("Successfully dropped ~p", [SName]);
+                               _ ->
+                                  ?ERROR_MSG("Failed to drop ~p. You should drop it and restart module", [SName])
+                          end,
+                          error
+                   end;
+                 _ ->
+                   ?ERROR_MSG("Failed to create stats table for ~p: ~p", [VHost, Reason]),
+                   error
+            end
+    end.
+
+create_settings_table(#state{dbref=DBRef, vhost=VHost}) ->
+    SName = settings_table(VHost),
+    Query = ["CREATE TABLE IF NOT EXISTS ",SName," (",
+                "owner_id MEDIUMINT UNSIGNED PRIMARY KEY, ",
+                "dolog_default TINYINT(1) NOT NULL DEFAULT 1, ",
+                "dolog_list TEXT, ",
+                "donotlog_list TEXT ",
+             ") ENGINE=InnoDB CHARACTER SET utf8;"
+            ],
+    case sql_query_internal(DBRef, Query) of
+         {updated, _} ->
+            ?MYDEBUG("Created settings table for ~p", [VHost]),
+            ok;
+         {error, _} ->
+            error
+    end.
+
+create_users_table(#state{dbref=DBRef, vhost=VHost}) ->
+    SName = users_table(VHost),
+    Query = ["CREATE TABLE IF NOT EXISTS ",SName," (",
+                "username TEXT NOT NULL, ",
+                "user_id MEDIUMINT UNSIGNED NOT NULL AUTO_INCREMENT UNIQUE, ",
+                "UNIQUE INDEX(username(",?INDEX_SIZE,")) ",
+             ") ENGINE=InnoDB CHARACTER SET utf8;"
+            ],
+    case sql_query_internal(DBRef, Query) of
+         {updated, _} ->
+            ?MYDEBUG("Created users table for ~p", [VHost]),
+            ok;
+         {error, _} ->
+            error
+    end.
+
+create_servers_table(#state{dbref=DBRef, vhost=VHost}) ->
+    SName = servers_table(VHost),
+    Query = ["CREATE TABLE IF NOT EXISTS ",SName," (",
+                "server TEXT NOT NULL, ",
+                "server_id MEDIUMINT UNSIGNED NOT NULL AUTO_INCREMENT UNIQUE, ",
+                "UNIQUE INDEX(server(",?INDEX_SIZE,")) ",
+             ") ENGINE=InnoDB CHARACTER SET utf8;"
+            ],
+    case sql_query_internal(DBRef, Query) of
+         {updated, _} ->
+            ?MYDEBUG("Created servers table for ~p", [VHost]),
+            ok;
+         {error, _} ->
+            error
+    end.
+
+create_resources_table(#state{dbref=DBRef, vhost=VHost}) ->
+    RName = resources_table(VHost),
+    Query = ["CREATE TABLE IF NOT EXISTS ",RName," (",
+                "resource TEXT NOT NULL, ",
+                "resource_id MEDIUMINT UNSIGNED NOT NULL AUTO_INCREMENT UNIQUE, ",
+                "UNIQUE INDEX(resource(",?INDEX_SIZE,")) ",
+             ") ENGINE=InnoDB CHARACTER SET utf8;"
+            ],
+    case sql_query_internal(DBRef, Query) of
+         {updated, _} ->
+            ?MYDEBUG("Created resources table for ~p", [VHost]),
+            ok;
+         {error, _} ->
+            error
+    end.
+
+create_internals(#state{dbref=DBRef, vhost=VHost}) ->
+    sql_query_internal(DBRef, ["DROP PROCEDURE IF EXISTS ",logmessage_name(VHost),";"]),
+    case sql_query_internal(DBRef, [get_logmessage(VHost)]) of
+         {updated, _} ->
+            ?MYDEBUG("Created logmessage for ~p", [VHost]),
+            ok;
+         {error, _} ->
+            error
+    end.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% SQL internals 
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+sql_query_internal(DBRef, Query) ->
+    case sql_query_internal_silent(DBRef, Query) of
+         {error, Reason} ->
+            ?ERROR_MSG("~p while ~p", [Reason, lists:append(Query)]),
+            {error, Reason};
+         Rez -> Rez
+    end.
+
+sql_query_internal_silent(DBRef, Query) ->
+    ?MYDEBUG("DOING: \"~s\"", [lists:append(Query)]),
+    get_result(mysql_conn:fetch(DBRef, Query, self(), ?MYSQL_TIMEOUT)).
+
+get_result({updated, MySQLRes}) ->
+    {updated, mysql:get_result_affected_rows(MySQLRes)};
+get_result({data, MySQLRes}) ->
+    {data, mysql:get_result_rows(MySQLRes)};
+get_result({error, "query timed out"}) ->
+    {error, "query timed out"};
+get_result({error, MySQLRes}) ->
+    Reason = mysql:get_result_reason(MySQLRes),
+    {error, Reason}.
+
+get_user_id(DBRef, VHost, User) ->
+  SQuery = ["SELECT user_id FROM ",users_table(VHost)," ",
+               "WHERE username=\"",User,"\";"],
+  case sql_query_internal(DBRef, SQuery) of
+       {data, []} ->
+          IQuery = ["INSERT INTO ",users_table(VHost)," ",
+                       "SET username=\"",User,"\";"],
+          case sql_query_internal_silent(DBRef, IQuery) of
+               {updated, _} ->
+                   {data, [[DBIdNew]]} = sql_query_internal(DBRef, SQuery),
+                   DBIdNew;
+               {error, Reason} ->
+                   % this can be in clustered environment
+                   {match, _, _} = regexp:match(Reason, "#23000"),
+                   ?ERROR_MSG("Duplicate key name for ~p", [User]),
+                   {data, [[ClID]]} = sql_query_internal(DBRef, SQuery),
+                   ClID
+          end;
+       {data, [[DBId]]} ->
+          DBId
+  end.
+
+get_logmessage(VHost) ->
+    UName = users_table(VHost),
+    SName = servers_table(VHost),
+    RName = resources_table(VHost),
+    StName = stats_table(VHost),
+    io_lib:format("
+CREATE PROCEDURE ~s(tablename TEXT, atdate TEXT, owner TEXT, peer_name TEXT, peer_server TEXT, peer_resource TEXT, mdirection VARCHAR(4), mtype VARCHAR(10), msubject TEXT, mbody TEXT, mtimestamp DOUBLE)
+BEGIN
+   DECLARE ownerID MEDIUMINT UNSIGNED; 
+   DECLARE peer_nameID MEDIUMINT UNSIGNED;
+   DECLARE peer_serverID MEDIUMINT UNSIGNED;
+   DECLARE peer_resourceID MEDIUMINT UNSIGNED;
+   DECLARE Vmtype VARCHAR(10);
+   DECLARE Vmtimestamp DOUBLE;
+   DECLARE Vmdirection VARCHAR(4);
+   DECLARE Vmbody TEXT;
+   DECLARE Vmsubject TEXT;
+   DECLARE iq TEXT;
+   DECLARE cq TEXT;
+   DECLARE viewname TEXT;
+   DECLARE notable INT;
+   DECLARE CONTINUE HANDLER FOR SQLSTATE '42S02' SET @notable = 1;
+
+   SET @notable = 0;
+   SET @ownerID = NULL;
+   SET @peer_nameID = NULL;
+   SET @peer_serverID = NULL;
+   SET @peer_resourceID = NULL;
+
+   SET @Vmtype = mtype;
+   SET @Vmtimestamp = mtimestamp;
+   SET @Vmdirection = mdirection;
+   SET @Vmbody = mbody;
+   SET @Vmsubject = msubject;
+
+   SELECT user_id INTO @ownerID FROM ~s WHERE username=owner;
+   IF @ownerID IS NULL THEN
+      INSERT INTO ~s SET username=owner;
+      SET @ownerID = LAST_INSERT_ID(); 
+   END IF;
+
+   SELECT user_id INTO @peer_nameID FROM ~s WHERE username=peer_name;
+   IF @peer_nameID IS NULL THEN
+      INSERT INTO ~s SET username=peer_name;
+      SET @peer_nameID = LAST_INSERT_ID();
+   END IF;
+
+   SELECT server_id INTO @peer_serverID FROM ~s WHERE server=peer_server;
+   IF @peer_serverID IS NULL THEN
+      INSERT INTO ~s SET server=peer_server;
+      SET @peer_serverID = LAST_INSERT_ID();
+   END IF;
+
+   SELECT resource_id INTO @peer_resourceID FROM ~s WHERE resource=peer_resource;
+   IF @peer_resourceID IS NULL THEN
+      INSERT INTO ~s SET resource=peer_resource;
+      SET @peer_resourceID = LAST_INSERT_ID();
+   END IF;
+
+   SET @iq = CONCAT(\"INSERT INTO \",tablename,\" (owner_id, peer_name_id, peer_server_id, peer_resource_id, direction, type, subject, body, timestamp) VALUES (@ownerID,@peer_nameID,@peer_serverID,@peer_resourceID,@Vmdirection,@Vmtype,@Vmsubject,@Vmbody,@Vmtimestamp);\");
+   PREPARE insertmsg FROM @iq;
+
+   IF @notable = 1 THEN
+      SET @cq = CONCAT(\"CREATE TABLE \",tablename,\" (
+                          owner_id MEDIUMINT UNSIGNED NOT NULL,
+                          peer_name_id MEDIUMINT UNSIGNED NOT NULL,
+                          peer_server_id MEDIUMINT UNSIGNED NOT NULL,
+                          peer_resource_id MEDIUMINT(8) UNSIGNED NOT NULL,
+                          direction ENUM('to', 'from') NOT NULL,
+                          type ENUM('chat','error','groupchat','headline','normal') NOT NULL,
+                          subject TEXT,
+                          body TEXT,
+                          timestamp DOUBLE NOT NULL,
+                          ext INTEGER DEFAULT NULL,
+                          INDEX search_i (owner_id, peer_name_id, peer_server_id, peer_resource_id),
+                          INDEX ext_i (ext),
+                          FULLTEXT (body)
+                       ) ENGINE=MyISAM
+                         PACK_KEYS=1
+                         CHARACTER SET utf8;\");
+      PREPARE createtable FROM @cq;
+      EXECUTE createtable;
+      DEALLOCATE PREPARE createtable;
+
+      SET @viewname = CONCAT(\"`v_\", TRIM(BOTH '`' FROM tablename), \"`\");
+      SET @cq = CONCAT(\"CREATE OR REPLACE VIEW \",@viewname,\" AS
+                         SELECT owner.username AS owner_name,
+                                peer.username AS peer_name,
+                                servers.server AS peer_server,
+                                resources.resource AS peer_resource,
+                                messages.direction,
+                                messages.type,
+                                messages.subject,
+                                messages.body,
+                                messages.timestamp
+                         FROM
+                                ~s owner,
+                                ~s peer,
+                                ~s servers,
+                                ~s resources,
+                              \", tablename,\" messages
+                         WHERE
+                                owner.user_id=messages.owner_id and
+                                peer.user_id=messages.peer_name_id and
+                                servers.server_id=messages.peer_server_id and
+                                resources.resource_id=messages.peer_resource_id
+                         ORDER BY messages.timestamp;\");
+      PREPARE createview FROM @cq;
+      EXECUTE createview;
+      DEALLOCATE PREPARE createview;
+
+      SET @notable = 0;
+      PREPARE insertmsg FROM @iq;
+      EXECUTE insertmsg;
+   ELSEIF @notable = 0 THEN
+      EXECUTE insertmsg;
+   END IF;
+
+   DEALLOCATE PREPARE insertmsg;
+
+   IF @notable = 0 THEN
+      UPDATE ~s SET count=count+1 WHERE owner_id=@ownerID AND peer_name_id=@peer_nameID AND peer_server_id=@peer_serverID AND at=atdate;
+      IF ROW_COUNT() = 0 THEN
+         INSERT INTO ~s (owner_id, peer_name_id, peer_server_id, at, count) VALUES (@ownerID, @peer_nameID, @peer_serverID, atdate, 1);
+      END IF;
+   END IF;
+END;", [logmessage_name(VHost),UName,UName,UName,UName,SName,SName,RName,RName,UName,UName,SName,RName,StName,StName]).
--- mod_logdb_pgsql.erl.orig	2009-02-05 19:21:29.000000000 +0200
+++ mod_logdb_pgsql.erl	2009-02-05 19:20:29.000000000 +0200
@@ -0,0 +1,1078 @@
+%%%----------------------------------------------------------------------
+%%% File    : mod_logdb_pgsql.erl
+%%% Author  : Oleg Palij (mailto,xmpp:o.palij@gmail.com)
+%%% Purpose : Posgresql backend for mod_logdb
+%%% Version : trunk
+%%% Id      : $Id: mod_logdb_pgsql.erl 1253 2009-02-02 11:10:03Z malik $
+%%% Url     : http://www.dp.uz.gov.ua/o.palij/mod_logdb/
+%%%----------------------------------------------------------------------
+
+-module(mod_logdb_pgsql).
+-author('o.palij@gmail.com').
+
+-include("mod_logdb.hrl").
+-include("ejabberd.hrl").
+-include("jlib.hrl").
+
+-behaviour(gen_logdb).
+-behaviour(gen_server).
+
+% gen_server
+-export([code_change/3,handle_call/3,handle_cast/2,handle_info/2,init/1,terminate/2]).
+% gen_mod
+-export([start/2, stop/1]).
+% gen_logdb
+-export([log_message/2,
+         rebuild_stats/1,
+         rebuild_stats_at/2,
+         delete_messages_by_user_at/3, delete_all_messages_by_user_at/3, delete_messages_at/2,
+         get_vhost_stats/1, get_vhost_stats_at/2, get_user_stats/2, get_user_messages_at/3,
+         get_dates/1,
+         get_users_settings/1, get_user_settings/2, set_user_settings/3,
+         drop_user/2]).
+
+-export([view_table/3]).
+
+% gen_server call timeout
+-define(CALL_TIMEOUT, 30000).
+-define(PGSQL_TIMEOUT, 60000).
+-define(PROCNAME, mod_logdb_pgsql).
+
+-import(mod_logdb, [list_to_bool/1, bool_to_list/1,
+                    list_to_string/1, string_to_list/1,
+                    convert_timestamp_brief/1]).
+
+-record(state, {dbref, vhost, server, port, db, user, password, schema}).
+
+% replace "." with "_"
+escape_vhost(VHost) -> lists:map(fun(46) -> 95;
+                                    (A) -> A
+                                 end, VHost).
+
+prefix(Schema) ->
+   Schema ++ ".\"" ++ "logdb_".
+
+suffix(VHost) ->
+   "_" ++ escape_vhost(VHost) ++ "\"".
+
+messages_table(VHost, Schema, Date) ->
+   prefix(Schema) ++ "messages_" ++ Date ++ suffix(VHost).
+
+view_table(VHost, Schema, Date) ->
+   Table = messages_table(VHost, Schema, Date),
+   TablewoS = lists:sublist(Table, length(Schema) + 3, length(Table) - length(Schema) - 3),
+   lists:append([Schema, ".\"v_", TablewoS, "\""]).
+
+stats_table(VHost, Schema) ->
+   prefix(Schema) ++ "stats" ++ suffix(VHost).
+
+temp_table(VHost, Schema) ->
+   prefix(Schema) ++ "temp" ++ suffix(VHost).
+
+settings_table(VHost, Schema) ->
+   prefix(Schema) ++ "settings" ++ suffix(VHost).
+
+users_table(VHost, Schema) ->
+   prefix(Schema) ++ "users" ++ suffix(VHost).
+servers_table(VHost, Schema) ->
+   prefix(Schema) ++ "servers" ++ suffix(VHost).
+resources_table(VHost, Schema) ->
+   prefix(Schema) ++ "resources" ++ suffix(VHost).
+
+logmessage_name(VHost, Schema) ->
+   prefix(Schema) ++ "logmessage" ++ suffix(VHost).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_mod callbacks
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+start(VHost, Opts) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:start({local, Proc}, ?MODULE, [VHost, Opts], []).
+
+stop(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {stop}, ?CALL_TIMEOUT).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_server callbacks
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+init([VHost, Opts]) ->
+   Server = gen_mod:get_opt(server, Opts, "localhost"),
+   DB = gen_mod:get_opt(db, Opts, "ejabberd_logdb"),
+   User = gen_mod:get_opt(user, Opts, "root"),
+   Port = gen_mod:get_opt(port, Opts, 5432),
+   Password = gen_mod:get_opt(password, Opts, ""),
+   Schema = gen_mod:get_opt(schema, Opts, "public"),
+
+   ?MYDEBUG("Starting pgsql backend for ~p", [VHost]),
+
+   St = #state{vhost=VHost,
+               server=Server, port=Port, db=DB,
+               user=User, password=Password,
+               schema=Schema},
+
+   case open_pgsql_connection(St) of
+       {ok, DBRef} ->
+           State = St#state{dbref=DBRef},
+           ok = create_internals(State),
+           ok = create_stats_table(State),
+           ok = create_settings_table(State),
+           ok = create_users_table(State),
+           ok = create_servers_table(State),
+           ok = create_resources_table(State),
+           erlang:monitor(process, DBRef),
+           {ok, State};
+       % this does not work
+       {error, Reason} ->
+           ?ERROR_MSG("PgSQL connection failed: ~p~n", [Reason]),
+           {stop, db_connection_failed};
+       % and this too, becouse pgsql_conn do exit() which can not be catched
+       {'EXIT', Rez} ->
+           ?ERROR_MSG("Rez: ~p~n", [Rez]),
+           {stop, db_connection_failed}
+   end.
+
+open_pgsql_connection(#state{server=Server, port=Port, db=DB, schema=Schema,
+                             user=User, password=Password} = _State) ->
+   {ok, DBRef} = pgsql:connect(Server, DB, User, Password, Port),
+   {updated, _} = sql_query_internal(DBRef, ["SET SEARCH_PATH TO ",Schema,";"]),
+   {ok, DBRef}.
+
+close_pgsql_connection(DBRef) ->
+   ?MYDEBUG("Closing ~p pgsql connection", [DBRef]),
+   pgsql:terminate(DBRef).
+
+handle_call({log_message, Msg}, _From, #state{dbref=DBRef, vhost=VHost, schema=Schema}=State) ->
+    Date = convert_timestamp_brief(Msg#msg.timestamp),
+    TableName = messages_table(VHost, Schema, Date),
+    ViewName = view_table(VHost, Schema, Date),
+
+    Query = [ "SELECT ", logmessage_name(VHost, Schema)," "
+                 "('", TableName, "',",
+                  "'", ViewName, "',",
+                  "'", Date, "',",
+                  "'", Msg#msg.owner_name, "',",
+                  "'", Msg#msg.peer_name, "',",
+                  "'", Msg#msg.peer_server, "',",
+                  "'", ejabberd_odbc:escape(Msg#msg.peer_resource), "',",
+                  "'", atom_to_list(Msg#msg.direction), "',",
+                  "'", Msg#msg.type, "',",
+                  "'", ejabberd_odbc:escape(Msg#msg.subject), "',",
+                  "'", ejabberd_odbc:escape(Msg#msg.body), "',",
+                  "'", Msg#msg.timestamp, "');"],
+
+    case sql_query_internal_silent(DBRef, Query) of
+    % TODO: change this
+         {data, [{"0"}]} ->
+             ?MYDEBUG("Logged ok for ~p, peer: ~p", [Msg#msg.owner_name++"@"++VHost,
+                                                     Msg#msg.peer_name++"@"++Msg#msg.peer_server]),
+             ok;
+         {error, _Reason} ->
+             error
+    end,
+    {reply, ok, State};
+handle_call({rebuild_stats_at, Date}, _From, #state{dbref=DBRef, vhost=VHost, schema=Schema}=State) ->
+    Reply = rebuild_stats_at_int(DBRef, VHost, Schema, Date),
+    {reply, Reply, State};
+handle_call({delete_messages_by_user_at, [], _Date}, _From, State) ->
+    {reply, error, State};
+handle_call({delete_messages_by_user_at, Msgs, Date}, _From, #state{dbref=DBRef, vhost=VHost, schema=Schema}=State) ->
+    Temp = lists:flatmap(fun(#msg{timestamp=Timestamp} = _Msg) ->
+                             ["'",Timestamp,"'",","]
+                         end, Msgs),
+
+    Temp1 = lists:append([lists:sublist(Temp, length(Temp)-1), ");"]),
+
+    Query = ["DELETE FROM ",messages_table(VHost, Schema, Date)," ",
+                             "WHERE timestamp IN (", Temp1],
+
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {updated, _} ->
+              rebuild_stats_at_int(DBRef, VHost, Schema, Date);
+           {error, _} ->
+              error
+      end,
+    {reply, Reply, State};
+handle_call({delete_all_messages_by_user_at, User, Date}, _From, #state{dbref=DBRef, vhost=VHost, schema=Schema}=State) ->
+    ok = delete_all_messages_by_user_at_int(DBRef, Schema, User, VHost, Date),
+    ok = delete_stats_by_user_at_int(DBRef, Schema, User, VHost, Date),
+    {reply, ok, State};
+handle_call({delete_messages_at, Date}, _From, #state{dbref=DBRef, vhost=VHost, schema=Schema}=State) ->
+    {updated, _} = sql_query_internal(DBRef, ["DROP VIEW ",view_table(VHost, Schema, Date),";"]),
+    Reply =
+      case sql_query_internal(DBRef, ["DROP TABLE ",messages_table(VHost, Schema, Date)," CASCADE;"]) of
+           {updated, _} ->
+              Query = ["DELETE FROM ",stats_table(VHost, Schema)," "
+                          "WHERE at='",Date,"';"],
+              case sql_query_internal(DBRef, Query) of
+                   {updated, _} ->
+                      ok;
+                   {error, _} ->
+                      error
+              end;
+           {error, _} ->
+              error
+      end,
+    {reply, Reply, State};
+handle_call({get_vhost_stats}, _From, #state{dbref=DBRef, vhost=VHost, schema=Schema}=State) ->
+    SName = stats_table(VHost, Schema),
+    Query = ["SELECT at, sum(count) ",
+                "FROM ",SName," ",
+                "GROUP BY at ",
+                "ORDER BY DATE(at) DESC;"
+            ],
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {data, Recs} ->
+              {ok, [ {Date, list_to_integer(Count)} || {Date, Count} <- Recs]};
+           {error, Reason} ->
+              % TODO: Duplicate error message ?
+              {error, Reason}
+      end,
+    {reply, Reply, State};
+handle_call({get_vhost_stats_at, Date}, _From, #state{dbref=DBRef, vhost=VHost, schema=Schema}=State) ->
+    SName = stats_table(VHost, Schema),
+    Query = ["SELECT username, sum(count) AS allcount ",
+                "FROM ",SName," ",
+                "JOIN ",users_table(VHost, Schema)," ON owner_id=user_id ",
+                "WHERE at='",Date,"' ",
+                "GROUP BY username ",
+                "ORDER BY allcount DESC;"
+            ],
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {data, Recs} ->
+              RFun = fun({User, Count}) ->
+                          {User, list_to_integer(Count)}
+                     end,
+              {ok, lists:reverse(lists:keysort(2, lists:map(RFun, Recs)))};
+           {error, Reason} ->
+              % TODO:
+              {error, Reason}
+      end,
+    {reply, Reply, State};
+handle_call({get_user_stats, User}, _From, #state{dbref=DBRef, vhost=VHost, schema=Schema}=State) ->
+    {reply, get_user_stats_int(DBRef, Schema, User, VHost), State};
+handle_call({get_user_messages_at, User, Date}, _From, #state{dbref=DBRef, vhost=VHost, schema=Schema}=State) ->
+    Query = ["SELECT peer_name,",
+                    "peer_server,",
+                    "peer_resource,",
+                    "direction,"
+                    "type,"
+                    "subject,"
+                    "body,"
+                    "timestamp "
+               "FROM ",view_table(VHost, Schema, Date)," "
+               "WHERE owner_name='",User,"';"],
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {data, Recs} ->
+              Fun = fun({Peer_name, Peer_server, Peer_resource,
+                         Direction,
+                         Type,
+                         Subject, Body,
+                         Timestamp}) ->
+                          #msg{peer_name=Peer_name, peer_server=Peer_server, peer_resource=Peer_resource,
+                               direction=list_to_atom(Direction),
+                               type=Type,
+                               subject=Subject, body=Body,
+                               timestamp=Timestamp}
+                    end,
+              {ok, lists:map(Fun, Recs)};
+           {error, Reason} ->
+              {error, Reason}
+      end,
+    {reply, Reply, State};
+handle_call({get_dates}, _From, #state{dbref=DBRef, vhost=VHost, schema=Schema}=State) ->
+    SName = stats_table(VHost, Schema),
+    Query = ["SELECT at ",
+                "FROM ",SName," ",
+                "GROUP BY at ",
+                "ORDER BY at DESC;"
+            ],
+    Reply =
+       case sql_query_internal(DBRef, Query) of
+            {data, Result} ->
+               [ Date || {Date} <- Result ];
+            {error, Reason} ->
+               {error, Reason}
+       end,
+    {reply, Reply, State};
+handle_call({get_users_settings}, _From, #state{dbref=DBRef, vhost=VHost, schema=Schema}=State) ->
+    Query = ["SELECT username,dolog_default,dolog_list,donotlog_list ",
+                "FROM ",settings_table(VHost, Schema)," ",
+             "JOIN ",users_table(VHost, Schema)," ON user_id=owner_id;"],
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {data, Recs} ->
+              {ok, [#user_settings{owner_name=Owner,
+                                   dolog_default=list_to_bool(DoLogDef),
+                                   dolog_list=string_to_list(DoLogL),
+                                   donotlog_list=string_to_list(DoNotLogL)
+                                  } || {Owner, DoLogDef, DoLogL, DoNotLogL} <- Recs]};
+           {error, Reason} ->
+              {error, Reason}
+      end,
+    {reply, Reply, State};
+handle_call({get_user_settings, User}, _From, #state{dbref=DBRef, vhost=VHost, schema=Schema}=State) ->
+    Query = ["SELECT dolog_default,dolog_list,donotlog_list ",
+                "FROM ",settings_table(VHost, Schema)," ",
+             "WHERE owner_id=(SELECT user_id FROM ",users_table(VHost, Schema)," WHERE username='",User,"');"],
+    Reply =
+      case sql_query_internal_silent(DBRef, Query) of
+           {data, []} ->
+              {ok, []};
+           {data, [{DoLogDef, DoLogL, DoNotLogL}]} ->
+              {ok, #user_settings{owner_name=User,
+                                  dolog_default=list_to_bool(DoLogDef),
+                                  dolog_list=string_to_list(DoLogL),
+                                  donotlog_list=string_to_list(DoNotLogL)}};
+           {error, Reason} ->
+              ?ERROR_MSG("Failed to get_user_settings for ~p@~p: ~p", [User, VHost, Reason]),
+              error
+      end,
+    {reply, Reply, State};
+handle_call({set_user_settings, User, #user_settings{dolog_default=DoLogDef,
+                                                     dolog_list=DoLogL,
+                                                     donotlog_list=DoNotLogL}},
+            _From, #state{dbref=DBRef, vhost=VHost, schema=Schema}=State) ->
+    User_id = get_user_id(DBRef, VHost, Schema, User),
+    Query = ["UPDATE ",settings_table(VHost, Schema)," ",
+                "SET dolog_default=",bool_to_list(DoLogDef),", ",
+                    "dolog_list='",list_to_string(DoLogL),"', ",
+                    "donotlog_list='",list_to_string(DoNotLogL),"' ",
+                "WHERE owner_id=",User_id,";"],
+
+    Reply =
+      case sql_query_internal(DBRef, Query) of
+           {updated, 0} ->
+              IQuery = ["INSERT INTO ",settings_table(VHost, Schema)," ",
+                            "(owner_id, dolog_default, dolog_list, donotlog_list) ",
+                            "VALUES ",
+                            "(",User_id,", ",bool_to_list(DoLogDef),",'",list_to_string(DoLogL),"','",list_to_string(DoNotLogL),"');"],
+              case sql_query_internal(DBRef, IQuery) of
+                   {updated, 1} ->
+                       ?MYDEBUG("New settings for ~s@~s", [User, VHost]),
+                       ok;
+                   {error, _} ->
+                       error
+              end;
+           {updated, 1} ->
+              ?MYDEBUG("Updated settings for ~s@~s", [User, VHost]),
+              ok;
+           {error, _} ->
+              error
+      end,
+    {reply, Reply, State};
+handle_call({stop}, _From, State) ->
+   ?MYDEBUG("Stoping pgsql backend for ~p", [State#state.vhost]),
+   {stop, normal, ok, State};
+handle_call(Msg, _From, State) ->
+    ?INFO_MSG("Got call Msg: ~p, State: ~p", [Msg, State]),
+    {noreply, State}.
+
+
+handle_cast({rebuild_stats}, State) ->
+    rebuild_all_stats_int(State),
+    {noreply, State};
+handle_cast({drop_user, User}, #state{vhost=VHost, schema=Schema}=State) ->
+    Fun = fun() ->
+            {ok, DBRef} = open_pgsql_connection(State),
+            {ok, Dates} = get_user_stats_int(DBRef, Schema, User, VHost),
+            MDResult = lists:map(fun({Date, _}) ->
+                           delete_all_messages_by_user_at_int(DBRef, Schema, User, VHost, Date)
+                       end, Dates),
+            StDResult = delete_all_stats_by_user_int(DBRef, Schema, User, VHost),
+            SDResult = delete_user_settings_int(DBRef, Schema, User, VHost),
+            case lists:all(fun(Result) when Result == ok ->
+                                true;
+                              (Result) when Result == error ->
+                               false
+                           end, lists:append([MDResult, [StDResult], [SDResult]])) of
+                 true ->
+                   ?INFO_MSG("Removed ~s@~s", [User, VHost]);
+                 false ->
+                   ?ERROR_MSG("Failed to remove ~s@~s", [User, VHost])
+            end,
+            close_pgsql_connection(DBRef)
+          end,
+    spawn(Fun),
+    {noreply, State};
+handle_cast(Msg, State) ->
+    ?INFO_MSG("Got cast Msg:~p, State:~p", [Msg, State]),
+    {noreply, State}.
+
+handle_info({'DOWN', _MonitorRef, process, _Pid, _Info}, State) ->
+    {stop, connection_dropped, State};
+handle_info(Info, State) ->
+    ?INFO_MSG("Got Info:~p, State:~p", [Info, State]),
+    {noreply, State}.
+
+terminate(_Reason, #state{dbref=DBRef}=_State) ->
+    close_pgsql_connection(DBRef),
+    ok.
+
+code_change(_OldVsn, State, _Extra) ->
+    {ok, State}.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_logdb callbacks
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+log_message(VHost, Msg) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {log_message, Msg}, ?CALL_TIMEOUT).
+rebuild_stats(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:cast(Proc, {rebuild_stats}).
+rebuild_stats_at(VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {rebuild_stats_at, Date}, ?CALL_TIMEOUT).
+delete_messages_by_user_at(VHost, Msgs, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {delete_messages_by_user_at, Msgs, Date}, ?CALL_TIMEOUT).
+delete_all_messages_by_user_at(User, VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {delete_all_messages_by_user_at, User, Date}, ?CALL_TIMEOUT).
+delete_messages_at(VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {delete_messages_at, Date}, ?CALL_TIMEOUT).
+get_vhost_stats(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_vhost_stats}, ?CALL_TIMEOUT).
+get_vhost_stats_at(VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_vhost_stats_at, Date}, ?CALL_TIMEOUT).
+get_user_stats(User, VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_user_stats, User}, ?CALL_TIMEOUT).
+get_user_messages_at(User, VHost, Date) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_user_messages_at, User, Date}, ?CALL_TIMEOUT).
+get_dates(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_dates}, ?CALL_TIMEOUT).
+get_users_settings(VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_users_settings}, ?CALL_TIMEOUT).
+get_user_settings(User, VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {get_user_settings, User}, ?CALL_TIMEOUT).
+set_user_settings(User, VHost, Set) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:call(Proc, {set_user_settings, User, Set}, ?CALL_TIMEOUT).
+drop_user(User, VHost) ->
+   Proc = gen_mod:get_module_proc(VHost, ?PROCNAME),
+   gen_server:cast(Proc, {drop_user, User}).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% internals
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+get_dates_int(DBRef, VHost) ->
+    Query = ["SELECT n.nspname as \"Schema\",
+                c.relname as \"Name\",
+                CASE c.relkind WHEN 'r' THEN 'table' WHEN 'v' THEN 'view' WHEN 'i' THEN 'index' WHEN 'S' THEN 'sequence' WHEN 's' THEN 'special' END as \"Type\",
+                r.rolname as \"Owner\"
+              FROM pg_catalog.pg_class c
+                   JOIN pg_catalog.pg_roles r ON r.oid = c.relowner
+                   LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace
+              WHERE c.relkind IN ('r','')
+                    AND n.nspname NOT IN ('pg_catalog', 'pg_toast')
+                    AND c.relname ~ '^(.*",escape_vhost(VHost),".*)$'
+                    AND pg_catalog.pg_table_is_visible(c.oid)
+              ORDER BY 1,2;"],
+    case sql_query_internal(DBRef, Query) of
+         {data, Recs} ->
+            lists:foldl(fun({_Schema, Table, _Type, _Owner}, Dates) ->
+                             case regexp:match(Table,"[0-9]+-[0-9]+-[0-9]+") of
+                                  {match, S, E} ->
+                                      lists:append(Dates, [lists:sublist(Table,S,E)]);
+                                  nomatch ->
+                                      Dates
+                             end
+                        end, [], Recs);
+         {error, _} ->
+            []
+    end.
+
+rebuild_all_stats_int(#state{vhost=VHost, schema=Schema}=State) ->
+    Fun = fun() ->
+             {ok, DBRef} = open_pgsql_connection(State),
+             ok = delete_nonexistent_stats(DBRef, Schema, VHost),
+             case lists:filter(fun(Date) ->
+                                 case catch rebuild_stats_at_int(DBRef, VHost, Schema, Date) of
+                                      ok -> false;
+                                      error -> true;
+                                      {'EXIT', _} -> true
+                                 end
+                             end, get_dates_int(DBRef, VHost)) of
+                  [] -> ok;
+                  FTables ->
+                     ?ERROR_MSG("Failed to rebuild stats for ~p dates", [FTables]),
+                     error
+             end,
+             close_pgsql_connection(DBRef)
+          end,
+    spawn(Fun).
+
+rebuild_stats_at_int(DBRef, VHost, Schema, Date) ->
+    TempTable = temp_table(VHost, Schema),
+    Fun =
+      fun() ->
+       Table = messages_table(VHost, Schema, Date),
+       STable = stats_table(VHost, Schema),
+
+       DQuery = [ "DELETE FROM ",STable," ",
+                     "WHERE at='",Date,"';"],
+
+       ok = create_temp_table(DBRef, VHost, Schema),
+       {updated, _} = sql_query_internal(DBRef, ["LOCK TABLE ",Table," IN ACCESS EXCLUSIVE MODE;"]),
+       {updated, _} = sql_query_internal(DBRef, ["LOCK TABLE ",TempTable," IN ACCESS EXCLUSIVE MODE;"]),
+       SQuery = ["INSERT INTO ",TempTable," ",
+                  "(owner_id,peer_name_id,peer_server_id,at,count) ",
+                     "SELECT owner_id,peer_name_id,peer_server_id,'",Date,"'",",count(*) ",
+                        "FROM ",Table," GROUP BY owner_id,peer_name_id,peer_server_id;"],
+       case sql_query_internal(DBRef, SQuery) of
+            {updated, 0} ->
+                Count = sql_query_internal(DBRef, ["SELECT count(*) FROM ",Table,";"]),
+                case Count of
+                     {data, [{"0"}]} ->
+                        {updated, _} = sql_query_internal(DBRef, ["DROP VIEW ",view_table(VHost, Schema, Date),";"]),
+                        {updated, _} = sql_query_internal(DBRef, ["DROP TABLE ",Table," CASCADE;"]),
+                        {updated, _} = sql_query_internal(DBRef, ["LOCK TABLE ",STable," IN ACCESS EXCLUSIVE MODE;"]),
+                        {updated, _} = sql_query_internal(DBRef, DQuery),
+                        ok;
+                     _ ->
+                        ?ERROR_MSG("Failed to calculate stats for ~s table! Count was ~p.", [Date, Count]),
+                        error
+                end;
+            {updated, _} ->
+                {updated, _} = sql_query_internal(DBRef, ["LOCK TABLE ",STable," IN ACCESS EXCLUSIVE MODE;"]),
+                {updated, _} = sql_query_internal(DBRef, ["LOCK TABLE ",TempTable," IN ACCESS EXCLUSIVE MODE;"]),
+                {updated, _} = sql_query_internal(DBRef, DQuery),
+                SQuery1 = ["INSERT INTO ",STable," ",
+                            "(owner_id,peer_name_id,peer_server_id,at,count) ",
+                               "SELECT owner_id,peer_name_id,peer_server_id,at,count ",
+                                  "FROM ",TempTable,";"],
+                case sql_query_internal(DBRef, SQuery1) of
+                     {updated, _} -> ok;
+                     {error, _} -> error
+                end;
+            {error, _} -> error
+       end
+      end, % fun
+
+    case sql_transaction_internal(DBRef, Fun) of
+         {atomic, _} ->
+            ?INFO_MSG("Rebuilded stats for ~p at ~p", [VHost, Date]),
+            ok;
+         {aborted, Reason} ->
+            ?ERROR_MSG("Failed to rebuild stats for ~s table: ~p.", [Date, Reason]),
+            error
+    end,
+    sql_query_internal(DBRef, ["DROP TABLE ",TempTable,";"]),
+    ok.
+
+delete_nonexistent_stats(DBRef, Schema, VHost) ->
+    Dates = get_dates_int(DBRef, VHost),
+    STable = stats_table(VHost, Schema),
+
+    Temp = lists:flatmap(fun(Date) ->
+                             ["'",Date,"'",","]
+                         end, Dates),
+
+    case Temp of
+         [] ->
+           ok;
+         _ ->
+           % replace last "," with ");"
+           Temp1 = lists:append([lists:sublist(Temp, length(Temp)-1), ");"]),
+           Query = ["DELETE FROM ",STable," ",
+                        "WHERE at NOT IN (", Temp1],
+           case sql_query_internal(DBRef, Query) of
+                {updated, _} ->
+                   ok;
+                {error, _} ->
+                   error
+           end
+    end.
+
+get_user_stats_int(DBRef, Schema, User, VHost) ->
+    SName = stats_table(VHost, Schema),
+    UName = users_table(VHost, Schema),
+    Query = ["SELECT stats.at, sum(stats.count) ",
+                 "FROM ",UName," AS users ",
+                    "JOIN ",SName," AS stats ON owner_id=user_id "
+                 "WHERE users.username='",User,"' ",
+                 "GROUP BY stats.at "
+                 "ORDER BY DATE(at) DESC;"
+             ],
+    case sql_query_internal(DBRef, Query) of
+         {data, Recs} ->
+            {ok, [ {Date, list_to_integer(Count)} || {Date, Count} <- Recs ]};
+         {error, Result} ->
+            {error, Result}
+    end.
+
+delete_all_messages_by_user_at_int(DBRef, Schema, User, VHost, Date) ->
+    DQuery = ["DELETE FROM ",messages_table(VHost, Schema, Date)," ",
+                 "WHERE owner_id=(SELECT user_id FROM ",users_table(VHost, Schema)," WHERE username='",User,"');"],
+    case sql_query_internal(DBRef, DQuery) of
+         {updated, _} ->
+            ?INFO_MSG("Dropped messages for ~s@~s at ~s", [User, VHost, Date]),
+            ok;
+         {error, _} ->
+            error
+    end.
+
+delete_all_stats_by_user_int(DBRef, Schema, User, VHost) ->
+    SQuery = ["DELETE FROM ",stats_table(VHost, Schema)," ",
+                "WHERE owner_id=(SELECT user_id FROM ",users_table(VHost, Schema)," WHERE username='",User,"');"],
+    case sql_query_internal(DBRef, SQuery) of
+         {updated, _} ->
+             ?INFO_MSG("Dropped all stats for ~s@~s", [User, VHost]),
+             ok;
+         {error, _} -> error
+    end.
+
+delete_stats_by_user_at_int(DBRef, Schema, User, VHost, Date) ->
+    SQuery = ["DELETE FROM ",stats_table(VHost, Schema)," ",
+                "WHERE owner_id=(SELECT user_id FROM ",users_table(VHost, Schema)," WHERE username='",User,"') ",
+                  "AND at='",Date,"';"],
+    case sql_query_internal(DBRef, SQuery) of
+         {updated, _} ->
+             ?INFO_MSG("Dropped stats for ~s@~s at ~s", [User, VHost, Date]),
+             ok;
+         {error, _} -> error
+    end.
+
+delete_user_settings_int(DBRef, Schema, User, VHost) ->
+    Query = ["DELETE FROM ",settings_table(VHost, Schema)," ",
+                 "WHERE owner_id=(SELECT user_id FROM ",users_table(VHost, Schema)," WHERE username='",User,"');"],
+    case sql_query_internal(DBRef, Query) of
+         {updated, _} ->
+            ?INFO_MSG("Dropped ~s@~s settings", [User, VHost]),
+            ok;
+         {error, Reason} ->
+            ?ERROR_MSG("Failed to drop ~s@~s settings: ~p", [User, VHost, Reason]),
+            error
+    end.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% tables internals
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+create_temp_table(DBRef, VHost, Schema) ->
+    TName =  temp_table(VHost, Schema),
+    Query = ["CREATE TABLE ",TName," (",
+                "owner_id INTEGER, ",
+                "peer_name_id INTEGER, ",
+                "peer_server_id INTEGER, ",
+                "at VARCHAR(20), ",
+                "count INTEGER ",
+             ");"
+            ],
+    case sql_query_internal(DBRef, Query) of
+         {updated, _} -> ok;
+         {error, _Reason} -> error
+    end.
+
+create_stats_table(#state{dbref=DBRef, vhost=VHost, schema=Schema}=State) ->
+    SName = stats_table(VHost, Schema),
+
+    Fun =
+      fun() ->
+        Query = ["CREATE TABLE ",SName," (",
+                    "owner_id INTEGER, ",
+                    "peer_name_id INTEGER, ",
+                    "peer_server_id INTEGER, ",
+                    "at VARCHAR(20), ",
+                    "count integer",
+                 ");"
+                ],
+        case sql_query_internal_silent(DBRef, Query) of
+             {updated, _} ->
+                {updated, _} = sql_query_internal(DBRef, ["CREATE INDEX \"s_search_i_",Schema,"_",escape_vhost(VHost),"\" ON ",SName," (owner_id, peer_name_id, peer_server_id);"]),
+                {updated, _} = sql_query_internal(DBRef, ["CREATE INDEX \"s_at_i_",Schema,"_",escape_vhost(VHost),"\" ON ",SName," (at);"]),
+                created;
+             {error, Reason} ->
+                case lists:keysearch(code, 1, Reason) of
+                     {value, {code, "42P07"}} ->
+                         exists;
+                     _ ->
+                         ?ERROR_MSG("Failed to create stats table for ~p: ~p", [VHost, Reason]),
+                         error
+                end
+        end
+      end,
+    case sql_transaction_internal(DBRef, Fun) of
+         {atomic, created} ->
+            ?MYDEBUG("Created stats table for ~p", [VHost]),
+            rebuild_all_stats_int(State),
+            ok;
+         {atomic, exists} ->
+            ?MYDEBUG("Stats table for ~p already exists", [VHost]),
+            {match, F, L} = regexp:match(SName, "\".*\""),
+            QTable = lists:sublist(SName, F+1, L-2),
+            OIDQuery = ["SELECT c.oid FROM pg_catalog.pg_class c LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace WHERE c.relname='",QTable,"' AND pg_catalog.pg_table_is_visible(c.oid);"],
+            {data,[{OID}]} = sql_query_internal(DBRef, OIDQuery),
+            CheckQuery = ["SELECT a.attname FROM pg_catalog.pg_attribute a  WHERE a.attrelid = '",OID,"' AND a.attnum > 0 AND NOT a.attisdropped AND a.attname ~ '^peer_.*_id$';"],
+            case sql_query_internal(DBRef, CheckQuery) of
+                 {data, Elems} when length(Elems) == 2 ->
+                   ?MYDEBUG("Stats table structure is ok", []),
+                   ok;
+                 _ ->
+                   ?INFO_MSG("It seems like stats table structure is invalid. I will drop it and recreate", []),
+                   case sql_query_internal(DBRef, ["DROP TABLE ",SName,";"]) of
+                        {updated, _} ->
+                          ?INFO_MSG("Successfully dropped ~p", [SName]);
+                        _ ->
+                          ?ERROR_MSG("Failed to drop ~p. You should drop it and restart module", [SName])
+                   end,
+                   error
+            end;
+         {error, _} -> error
+    end.
+
+create_settings_table(#state{dbref=DBRef, vhost=VHost, schema=Schema}) ->
+    SName = settings_table(VHost, Schema),
+    Query = ["CREATE TABLE ",SName," (",
+                "owner_id INTEGER PRIMARY KEY, ",
+                "dolog_default BOOLEAN, ",
+                "dolog_list TEXT DEFAULT '', ",
+                "donotlog_list TEXT DEFAULT ''",
+             ");"
+            ],
+    case sql_query_internal_silent(DBRef, Query) of
+         {updated, _} ->
+            ?MYDEBUG("Created settings table for ~p", [VHost]),
+            ok;
+         {error, Reason} ->
+            case lists:keysearch(code, 1, Reason) of
+                 {value, {code, "42P07"}} ->
+                   ?MYDEBUG("Settings table for ~p already exists", [VHost]),
+                   ok;
+                 _ ->
+                   ?ERROR_MSG("Failed to create settings table for ~p: ~p", [VHost, Reason]),
+                   error
+            end
+    end.
+
+create_users_table(#state{dbref=DBRef, vhost=VHost, schema=Schema}) ->
+    SName = users_table(VHost, Schema),
+
+    Fun =
+      fun() ->
+        Query = ["CREATE TABLE ",SName," (",
+                    "username TEXT UNIQUE, ",
+                    "user_id SERIAL PRIMARY KEY",
+                 ");"
+                ],
+        case sql_query_internal_silent(DBRef, Query) of
+             {updated, _} ->
+                {updated, _} = sql_query_internal(DBRef, ["CREATE INDEX \"username_i_",Schema,"_",escape_vhost(VHost),"\" ON ",SName," (username);"]),
+                created;
+             {error, Reason} ->
+                case lists:keysearch(code, 1, Reason) of
+                     {value, {code, "42P07"}} ->
+                       exists;
+                     _ ->
+                       ?ERROR_MSG("Failed to create users table for ~p: ~p", [VHost, Reason]),
+                       error
+                end
+        end
+      end,
+    case sql_transaction_internal(DBRef, Fun) of
+         {atomic, created} ->
+             ?MYDEBUG("Created users table for ~p", [VHost]),
+             ok;
+         {atomic, exists} -> 
+             ?MYDEBUG("Users table for ~p already exists", [VHost]),
+             ok;
+         {aborted, _} -> error
+    end.
+
+create_servers_table(#state{dbref=DBRef, vhost=VHost, schema=Schema}) ->
+    SName = servers_table(VHost, Schema),
+    Fun =
+      fun() ->
+        Query = ["CREATE TABLE ",SName," (",
+                    "server TEXT UNIQUE, ",
+                    "server_id SERIAL PRIMARY KEY",
+                 ");"
+                ],
+        case sql_query_internal_silent(DBRef, Query) of
+             {updated, _} ->
+                {updated, _} = sql_query_internal(DBRef, ["CREATE INDEX \"server_i_",Schema,"_",escape_vhost(VHost),"\" ON ",SName," (server);"]),
+                created;
+             {error, Reason} ->
+                case lists:keysearch(code, 1, Reason) of
+                     {value, {code, "42P07"}} ->
+                       exists;
+                     _ ->
+                       ?ERROR_MSG("Failed to create servers table for ~p: ~p", [VHost, Reason]),
+                       error
+                end
+        end
+      end,
+    case sql_transaction_internal(DBRef, Fun) of
+         {atomic, created} ->
+            ?MYDEBUG("Created servers table for ~p", [VHost]),
+            ok;
+         {atomic, exists} ->
+            ?MYDEBUG("Servers table for ~p already exists", [VHost]),
+            ok;
+         {aborted, _} -> error
+    end.
+
+create_resources_table(#state{dbref=DBRef, vhost=VHost, schema=Schema}) ->
+    RName = resources_table(VHost, Schema),
+    Fun = fun() ->
+            Query = ["CREATE TABLE ",RName," (",
+                     "resource TEXT UNIQUE, ",
+                     "resource_id SERIAL PRIMARY KEY",
+                     ");"
+                    ],
+            case sql_query_internal_silent(DBRef, Query) of
+                 {updated, _} ->
+                    {updated, _} = sql_query_internal(DBRef, ["CREATE INDEX \"resource_i_",Schema,"_",escape_vhost(VHost),"\" ON ",RName," (resource);"]),
+                    created;
+                 {error, Reason} ->
+                    case lists:keysearch(code, 1, Reason) of
+                         {value, {code, "42P07"}} ->
+                           exists;
+                         _ ->
+                           ?ERROR_MSG("Failed to create users table for ~p: ~p", [VHost, Reason]),
+                           error
+                    end
+            end
+          end,
+    case sql_transaction_internal(DBRef, Fun) of
+         {atomic, created} ->
+             ?MYDEBUG("Created resources table for ~p", [VHost]),
+             ok;
+         {atomic, exists} ->
+             ?MYDEBUG("Resources table for ~p already exists", [VHost]),
+             ok;
+         {aborted, _} -> error
+    end.
+
+create_internals(#state{dbref=DBRef, vhost=VHost, schema=Schema}) ->
+    sql_query_internal(DBRef, ["DROP FUNCTION IF EXISTS ",logmessage_name(VHost,Schema)," (tbname TEXT, atdt TEXT, owner TEXT, peer_name TEXT, peer_server TEXT, peer_resource TEXT, mdirection VARCHAR(4), mtype VARCHAR(9), msubj TEXT, mbody TEXT, mtimestamp DOUBLE PRECISION);"]),
+    case sql_query_internal(DBRef, [get_logmessage(VHost, Schema)]) of
+         {updated, _} ->
+            ?MYDEBUG("Created logmessage for ~p", [VHost]),
+            ok;
+         {error, _} ->
+            error
+    end.
+
+get_user_id(DBRef, VHost, Schema, User) ->
+    SQuery = ["SELECT user_id FROM ",users_table(VHost, Schema)," ",
+                 "WHERE username='",User,"';"],
+    case sql_query_internal(DBRef, SQuery) of
+         {data, []} ->
+             IQuery = ["INSERT INTO ",users_table(VHost, Schema)," ",
+                          "VALUES ('",User,"');"],
+             case sql_query_internal_silent(DBRef, IQuery) of
+                  {updated, _} ->
+                      {data, [{DBIdNew}]} = sql_query_internal(DBRef, SQuery),
+                      DBIdNew;
+                  {error, Reason} ->
+                      % this can be in clustered environment
+                      {value, {code, "23505"}} = lists:keysearch(code, 1, Reason),
+                      ?ERROR_MSG("Duplicate key name for ~p", [User]),
+                      {data, [{ClID}]} = sql_query_internal(DBRef, SQuery),
+                      ClID
+             end;
+         {data, [{DBId}]} ->
+            DBId
+    end.
+
+get_logmessage(VHost,Schema) ->
+    UName = users_table(VHost,Schema),
+    SName = servers_table(VHost,Schema),
+    RName = resources_table(VHost,Schema),
+    StName = stats_table(VHost,Schema),
+    io_lib:format("CREATE OR REPLACE FUNCTION ~s (tbname TEXT, vname TEXT, atdt TEXT, owner TEXT, peer_name TEXT, peer_server TEXT, peer_resource TEXT, mdirection VARCHAR(4), mtype VARCHAR(9), msubj TEXT, mbody TEXT, mtimestamp DOUBLE PRECISION) RETURNS INTEGER AS $$
+DECLARE
+   ownerID INTEGER;
+   peer_nameID INTEGER;
+   peer_serverID INTEGER;
+   peer_resourceID INTEGER;
+   tablename ALIAS for $1;
+   viewname ALIAS for $2;
+   atdate ALIAS for $3;
+BEGIN
+   SELECT INTO ownerID user_id FROM ~s WHERE username = owner;
+   IF NOT FOUND THEN
+      INSERT INTO ~s (username) VALUES (owner);
+      ownerID := lastval();
+   END IF;
+
+   SELECT INTO peer_nameID user_id FROM ~s WHERE username = peer_name;
+   IF NOT FOUND THEN
+      INSERT INTO ~s (username) VALUES (peer_name);
+      peer_nameID := lastval();
+   END IF;
+
+   SELECT INTO peer_serverID server_id FROM ~s WHERE server = peer_server;
+   IF NOT FOUND THEN
+      INSERT INTO ~s (server) VALUES (peer_server);
+      peer_serverID := lastval();
+   END IF;
+
+   SELECT INTO peer_resourceID resource_id FROM ~s WHERE resource = peer_resource;
+   IF NOT FOUND THEN
+      INSERT INTO ~s (resource) VALUES (peer_resource);
+      peer_resourceID := lastval();
+   END IF;
+
+   BEGIN
+      EXECUTE 'INSERT INTO ' || tablename || ' (owner_id, peer_name_id, peer_server_id, peer_resource_id, direction, type, subject, body, timestamp) VALUES (' || ownerID || ',' || peer_nameID || ',' || peer_serverID || ',' || peer_resourceID || ',''' || mdirection || ''',''' || mtype || ''',' || quote_literal(msubj) || ',' || quote_literal(mbody) || ',' || mtimestamp || ')';
+   EXCEPTION WHEN undefined_table THEN
+      EXECUTE 'CREATE TABLE ' || tablename || ' (' ||
+                   'owner_id INTEGER, ' ||
+                   'peer_name_id INTEGER, ' ||
+                   'peer_server_id INTEGER, ' ||
+                   'peer_resource_id INTEGER, ' ||
+                   'direction VARCHAR(4) CHECK (direction IN (''to'',''from'')), ' ||
+                   'type VARCHAR(9) CHECK (type IN (''chat'',''error'',''groupchat'',''headline'',''normal'')), ' ||
+                   'subject TEXT, ' ||
+                   'body TEXT, ' ||
+                   'timestamp DOUBLE PRECISION)';
+      EXECUTE 'CREATE INDEX \"search_i_' || '~s' || '_' || atdate || '_' || '~s' || '\"' || ' ON ' || tablename || ' (owner_id, peer_name_id, peer_server_id, peer_resource_id)';
+
+      EXECUTE 'CREATE OR REPLACE VIEW ' || viewname || ' AS ' ||
+                   'SELECT owner.username AS owner_name, ' ||
+                          'peer.username AS peer_name, ' ||
+                          'servers.server AS peer_server, ' ||
+                          'resources.resource AS peer_resource, ' ||
+                          'messages.direction, ' ||
+                          'messages.type, ' ||
+                          'messages.subject, ' ||
+                          'messages.body, ' ||
+                          'messages.timestamp ' ||
+                   'FROM ' ||
+                          '~s owner, ' ||
+                          '~s peer, ' ||
+                          '~s servers, ' ||
+                          '~s resources, ' ||
+                           tablename || ' messages ' ||
+                   'WHERE ' ||
+                          'owner.user_id=messages.owner_id and ' ||
+                          'peer.user_id=messages.peer_name_id and ' ||
+                          'servers.server_id=messages.peer_server_id and ' ||
+                          'resources.resource_id=messages.peer_resource_id ' ||
+                   'ORDER BY messages.timestamp';
+
+      EXECUTE 'INSERT INTO ' || tablename || ' (owner_id, peer_name_id, peer_server_id, peer_resource_id, direction, type, subject, body, timestamp) VALUES (' || ownerID || ',' || peer_nameID || ',' || peer_serverID || ',' || peer_resourceID || ',''' || mdirection || ''',''' || mtype || ''',' || quote_literal(msubj) || ',' || quote_literal(mbody) || ',' || mtimestamp || ')';
+   END;
+
+   UPDATE ~s SET count=count+1 where at=atdate and owner_id=ownerID and peer_name_id=peer_nameID and peer_server_id=peer_serverID;
+   IF NOT FOUND THEN
+      INSERT INTO ~s (owner_id, peer_name_id, peer_server_id, at, count) VALUES (ownerID, peer_nameID, peer_serverID, atdate, 1);
+   END IF;
+   RETURN 0;
+END;
+$$ LANGUAGE plpgsql;
+", [logmessage_name(VHost,Schema),UName,UName,UName,UName,SName,SName,RName,RName,Schema,escape_vhost(VHost),UName,UName,SName,RName,StName,StName]).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% SQL internals 
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% like do_transaction/2 in mysql_conn.erl (changeset by Yariv Sadan <yarivvv@gmail.com>)
+sql_transaction_internal(DBRef, Fun) ->
+    case sql_query_internal(DBRef, ["BEGIN;"]) of
+         {updated, _} ->
+            case catch Fun() of
+                 error = Err ->
+                   rollback_internal(DBRef, Err);
+                 {error, _} = Err ->
+                   rollback_internal(DBRef, Err);
+                 {'EXIT', _} = Err ->
+                   rollback_internal(DBRef, Err);
+                 Res ->
+                   case sql_query_internal(DBRef, ["COMMIT;"]) of
+                        {error, _} -> rollback_internal(DBRef, {commit_error});
+                        {updated, _} ->
+                           case Res of
+                                {atomic, _} -> Res;
+                                _ -> {atomic, Res}
+                           end
+                   end
+            end;
+         {error, _} ->
+            {aborted, {begin_error}}
+    end.
+
+% like rollback/2 in mysql_conn.erl (changeset by Yariv Sadan <yarivvv@gmail.com>)
+rollback_internal(DBRef, Reason) ->
+    Res = sql_query_internal(DBRef, ["ROLLBACK;"]),
+    {aborted, {Reason, {rollback_result, Res}}}.
+
+sql_query_internal(DBRef, Query) ->
+    case sql_query_internal_silent(DBRef, Query) of
+         {error, undefined, Rez} ->
+            ?ERROR_MSG("Got undefined result: ~p while ~p", [Rez, lists:append(Query)]),
+            {error, undefined};
+         {error, Error} ->
+            ?ERROR_MSG("Failed: ~p while ~p", [Error, lists:append(Query)]),
+            {error, Error};
+         Rez -> Rez
+    end.
+
+sql_query_internal_silent(DBRef, Query) ->
+    ?MYDEBUG("DOING: \"~s\"", [lists:append(Query)]),
+    % TODO: use pquery?
+    get_result(pgsql:squery(DBRef, Query)).
+
+get_result({ok, ["CREATE TABLE"]}) ->
+    {updated, 1};
+get_result({ok, ["DROP TABLE"]}) ->
+    {updated, 1};
+get_result({ok, ["ALTER TABLE"]}) ->
+    {updated, 1};
+get_result({ok,["DROP VIEW"]}) ->
+    {updated, 1};
+get_result({ok,["DROP FUNCTION"]}) ->
+    {updated, 1};
+get_result({ok, ["CREATE INDEX"]}) ->
+    {updated, 1};
+get_result({ok, ["CREATE FUNCTION"]}) ->
+    {updated, 1};
+get_result({ok, [{"SELECT", _Rows, Recs}]}) ->
+    {data, [list_to_tuple(Rec) || Rec <- Recs]};
+get_result({ok, ["INSERT " ++ OIDN]}) ->
+    [_OID, N] = string:tokens(OIDN, " "),
+    {updated, list_to_integer(N)};
+get_result({ok, ["DELETE " ++ N]}) ->
+    {updated, list_to_integer(N)};
+get_result({ok, ["UPDATE " ++ N]}) ->
+    {updated, list_to_integer(N)};
+get_result({ok, ["BEGIN"]}) ->
+    {updated, 1};
+get_result({ok, ["LOCK TABLE"]}) ->
+    {updated, 1};
+get_result({ok, ["ROLLBACK"]}) ->
+    {updated, 1};
+get_result({ok, ["COMMIT"]}) ->
+    {updated, 1};
+get_result({ok, ["SET"]}) ->
+    {updated, 1};
+get_result({ok, [{error, Error}]}) ->
+    {error, Error};
+get_result(Rez) ->
+    {error, undefined, Rez}.
+
--- mod_logdb_mnesia_old.erl.orig	2009-02-05 19:21:29.000000000 +0200
+++ mod_logdb_mnesia_old.erl	2009-02-05 19:20:07.000000000 +0200
@@ -0,0 +1,258 @@
+%%%----------------------------------------------------------------------
+%%% File    : mod_logdb_mnesia_old.erl
+%%% Author  : Oleg Palij (mailto,xmpp:o.palij@gmail.com)
+%%% Purpose : mod_logmnesia backend for mod_logdb (should be used only for copy_tables functionality)
+%%% Version : trunk
+%%% Id      : $Id: mod_logdb_mnesia_old.erl 1169 2008-09-16 12:14:36Z malik $
+%%% Url     : http://www.dp.uz.gov.ua/o.palij/mod_logdb/
+%%%----------------------------------------------------------------------
+
+-module(mod_logdb_mnesia_old).
+-author('o.palij@gmail.com').
+
+-include("ejabberd.hrl").
+-include("jlib.hrl").
+
+-behaviour(gen_logdb).
+
+-export([start/2, stop/1,
+         log_message/2,
+         rebuild_stats/1,
+         rebuild_stats_at/2,
+         rebuild_stats_at1/2,
+         delete_messages_by_user_at/3, delete_all_messages_by_user_at/3, delete_messages_at/2,
+         get_vhost_stats/1, get_vhost_stats_at/2, get_user_stats/2, get_user_messages_at/3,
+         get_dates/1,
+         get_users_settings/1, get_user_settings/2, set_user_settings/3,
+         drop_user/2]).
+
+-record(stats, {user, server, table, count}).
+-record(msg,   {to_user, to_server, to_resource, from_user, from_server, from_resource, id, type, subject, body, timestamp}).
+
+tables_prefix() -> "messages_".
+% stats_table should not start with tables_prefix(VHost) ! 
+% i.e. lists:prefix(tables_prefix(VHost), atom_to_list(stats_table())) must be /= true
+stats_table() -> list_to_atom("messages-stats").
+% table name as atom from Date
+-define(ATABLE(Date), list_to_atom(tables_prefix() ++ Date)).
+-define(LTABLE(Date), tables_prefix() ++ Date).
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_logdb callbacks
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+start(_Opts, _VHost) ->
+   case mnesia:system_info(is_running) of
+        yes ->
+          ok = create_stats_table(),
+          {ok, ok};
+        no ->
+          ?ERROR_MSG("Mnesia not running", []),
+          error;
+        Status ->
+          ?ERROR_MSG("Mnesia status: ~p", [Status]),
+          error
+   end.
+
+stop(_VHost) ->
+   ok.
+
+log_message(_VHost, _Msg) ->
+   error.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_logdb callbacks (maintaince)
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+rebuild_stats(_VHost) ->
+     ok.
+
+rebuild_stats_at(VHost, Date) ->
+    Table = ?LTABLE(Date),
+    {Time, Value}=timer:tc(?MODULE, rebuild_stats_at1, [VHost, Table]),
+    ?INFO_MSG("rebuild_stats_at ~p elapsed ~p sec: ~p~n", [Date, Time/1000000, Value]),
+    Value.
+rebuild_stats_at1(VHost, Table) ->
+    CFun = fun(Msg, Stats) ->
+               To = Msg#msg.to_user ++ "@" ++ Msg#msg.to_server,
+               Stats_to = if 
+                            Msg#msg.to_server == VHost ->
+                               case lists:keysearch(To, 1, Stats) of
+                                    {value, {Who_to, Count_to}} ->
+                                       lists:keyreplace(To, 1, Stats, {Who_to, Count_to + 1});
+                                    false ->
+                                        lists:append(Stats, [{To, 1}])
+                               end;
+                            true ->
+                               Stats
+                          end,
+               From = Msg#msg.from_user ++ "@" ++ Msg#msg.from_server,
+               Stats_from = if
+                              Msg#msg.from_server == VHost  ->
+                                 case lists:keysearch(From, 1, Stats_to) of
+                                      {value, {Who_from, Count_from}} ->
+                                         lists:keyreplace(From, 1, Stats_to, {Who_from, Count_from + 1});
+                                      false ->
+                                         lists:append(Stats_to, [{From, 1}])
+                                 end;
+                              true ->
+                                 Stats_to
+                            end,
+               Stats_from
+           end,
+    DFun = fun(#stats{table=STable, server=Server} = Stat, _Acc)
+                when STable == Table, Server == VHost ->
+                 mnesia:delete_object(stats_table(), Stat, write);
+              (_Stat, _Acc) -> ok
+           end,
+    case mnesia:transaction(fun() ->
+                               mnesia:write_lock_table(list_to_atom(Table)),
+                               mnesia:write_lock_table(stats_table()),
+                               % Calc stats for VHost at Date
+                               AStats = mnesia:foldl(CFun, [], list_to_atom(Table)),
+                               % Delete all stats for VHost at Date
+                               mnesia:foldl(DFun, [], stats_table()),
+                               % Write new calc'ed stats
+                               lists:foreach(fun({Who, Count}) ->
+                                                 Jid = jlib:string_to_jid(Who),
+                                                 JUser = Jid#jid.user,
+                                                 WStat = #stats{user=JUser, server=VHost, table=Table, count=Count},
+                                                 mnesia:write(stats_table(), WStat, write)
+                                             end, AStats)
+                            end) of
+         {aborted, Reason} ->
+              ?ERROR_MSG("Failed to rebuild_stats_at for ~p at ~p: ~p", [VHost, Table, Reason]),
+              error;
+         {atomic, _} ->
+              ok
+    end.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_logdb callbacks (delete)
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+delete_messages_by_user_at(_VHost, _Msgs, _Date) ->
+    error.
+
+delete_all_messages_by_user_at(_User, _VHost, _Date) ->
+    error.
+
+delete_messages_at(VHost, Date) ->
+   Table = list_to_atom(tables_prefix() ++ Date),
+
+   DFun = fun(#msg{to_server=To_server, from_server=From_server}=Msg, _Acc)
+                when To_server == VHost; From_server == VHost ->
+                   mnesia:delete_object(Table, Msg, write);
+             (_Msg, _Acc) -> ok
+          end,
+   
+   case mnesia:transaction(fun() ->
+                            mnesia:foldl(DFun, [], Table)
+                           end) of
+        {aborted, Reason} ->
+            ?ERROR_MSG("Failed to delete_messages_at for ~p at ~p: ~p", [VHost, Date, Reason]),
+            error;
+        {atomic, _} ->
+            ok
+   end.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% gen_logdb callbacks (get)
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+get_vhost_stats(_VHost) ->
+    {error, "does not emplemented"}.
+
+get_vhost_stats_at(VHost, Date) ->
+    Fun = fun() ->
+             Pat = #stats{user='$1', server=VHost, table=tables_prefix()++Date, count = '$2'},
+             mnesia:select(stats_table(), [{Pat, [], [['$1', '$2']]}])
+          end,
+    case mnesia:transaction(Fun) of
+         {atomic, Result} ->
+                   RFun = fun([User, Count]) ->
+                             {User, Count}
+                          end,
+                   {ok, lists:reverse(lists:keysort(2, lists:map(RFun, Result)))};
+         {aborted, Reason} -> {error, Reason}
+    end.
+
+get_user_stats(_User, _VHost) ->
+    {error, "does not emplemented"}.
+
+get_user_messages_at(User, VHost, Date) ->
+    Table_name = tables_prefix() ++ Date,
+    case mnesia:transaction(fun() ->
+                               Pat_to = #msg{to_user=User, to_server=VHost, _='_'},
+                               Pat_from = #msg{from_user=User, from_server=VHost,  _='_'},
+                               mnesia:select(list_to_atom(Table_name),
+                                             [{Pat_to, [], ['$_']},
+                                              {Pat_from, [], ['$_']}])
+                       end) of
+          {atomic, Result} ->
+                   Msgs = lists:map(fun(#msg{to_user=To_user, to_server=To_server, to_resource=To_res,
+                                             from_user=From_user, from_server=From_server, from_resource=From_res,
+                                             type=Type,
+                                             subject=Subj,
+                                             body=Body, timestamp=Timestamp} = _Msg) ->
+                                        Subject = case Subj of
+                                                       "None" -> "";
+                                                       _ -> Subj
+                                                  end,
+                                        {msg, To_user, To_server, To_res, From_user, From_server, From_res, Type, Subject, Body, Timestamp}
+                                    end, Result),
+                   {ok, Msgs};
+          {aborted, Reason} ->
+                   {error, Reason}
+    end.
+
+get_dates(_VHost) ->
+    Tables = mnesia:system_info(tables),
+    MessagesTables =
+        lists:filter(fun(Table) ->
+                         lists:prefix(tables_prefix(), atom_to_list(Table))
+                     end,
+                     Tables),
+    lists:map(fun(Table) ->
+                  lists:sublist(atom_to_list(Table),
+                                length(tables_prefix())+1,
+                                length(atom_to_list(Table)))
+              end,
+              MessagesTables).
+
+get_users_settings(_VHost) ->
+    {ok, []}.
+get_user_settings(_User, _VHost) ->
+    {ok, []}.
+set_user_settings(_User, _VHost, _Set) ->
+    ok.
+drop_user(_User, _VHost) ->
+    ok.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%
+% internal 
+%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% called from db_logon/2
+create_stats_table() ->
+    SName = stats_table(),
+    case mnesia:create_table(SName,
+                             [{disc_only_copies, [node()]},
+                              {type, bag},
+                              {attributes, record_info(fields, stats)},
+                              {record_name, stats}
+                             ]) of
+         {atomic, ok} ->
+             ?INFO_MSG("Created stats table", []),
+             ok;
+         {aborted, {already_exists, _}} ->
+             ok;
+         {aborted, Reason} ->
+             ?ERROR_MSG("Failed to create stats table: ~p", [Reason]),
+             error
+    end.
--- gen_logdb.erl.orig	2009-02-05 19:21:29.000000000 +0200
+++ gen_logdb.erl	2009-02-05 19:19:39.000000000 +0200
@@ -0,0 +1,164 @@
+%%%----------------------------------------------------------------------
+%%% File    : gen_logdb.erl
+%%% Author  : Oleg Palij (mailto,xmpp:o.palij@gmail.com)
+%%% Purpose : Describes generic behaviour for mod_logdb backends.
+%%% Version : trunk
+%%% Id      : $Id: gen_logdb.erl 1169 2008-09-16 12:14:36Z malik $
+%%% Url     : http://www.dp.uz.gov.ua/o.palij/mod_logdb/
+%%%----------------------------------------------------------------------
+
+-module(gen_logdb).
+-author('o.palij@gmail.com').
+
+-export([behaviour_info/1]).
+
+behaviour_info(callbacks) ->
+   [
+    % called from handle_info(start, _)
+    % it should logon database and return reference to started instance
+    % start(VHost, Opts) -> {ok, SPid} | error
+    %  Options - list of options to connect to db
+    %    Types: Options = list() -> [] |
+    %                              [{user, "logdb"},
+    %                               {pass, "1234"},
+    %                               {db, "logdb"}] | ...
+    %          VHost = list() -> "jabber.example.org"
+    {start, 2},
+
+    % called from cleanup/1
+    % it should logoff database and do cleanup
+    % stop(VHost)
+    %    Types: VHost = list() -> "jabber.example.org"
+    {stop, 1},
+
+    % called from handle_call({addlog, _}, _, _)
+    % it should log messages to database
+    % log_message(VHost, Msg) -> ok | error
+    %    Types:
+    %          VHost = list() -> "jabber.example.org"
+    %          Msg = record() -> #msg
+    {log_message, 2},
+
+    % called from ejabberdctl rebuild_stats
+    % it should rebuild stats table (if used) for vhost
+    % rebuild_stats(VHost)
+    %    Types:
+    %          VHost = list() -> "jabber.example.org"
+    {rebuild_stats, 1},
+
+    % it should rebuild stats table (if used) for vhost at Date
+    % rebuild_stats_at(VHost, Date)
+    %    Types:
+    %          VHost = list() -> "jabber.example.org"
+    %          Date = list() -> "2007-02-12"
+    {rebuild_stats_at, 2},
+
+    % called from user_messages_at_parse_query/5
+    % it should delete selected user messages at date
+    % delete_messages_by_user_at(VHost, Msgs, Date) -> ok | error
+    %    Types:
+    %          VHost = list() -> "jabber.example.org"
+    %          Msgs = list() -> [ #msg1, msg2, ... ]
+    %          Date = list() -> "2007-02-12"
+    {delete_messages_by_user_at, 3},
+
+    % called from user_messages_parse_query/4 | vhost_messages_at_parse_query/4
+    % it should delete all user messages at date
+    % delete_all_messages_by_user_at(User, VHost, Date) -> ok | error
+    %    Types:
+    %          User = list() -> "admin"
+    %          VHost = list() -> "jabber.example.org"
+    %          Date = list() -> "2007-02-12"
+    {delete_all_messages_by_user_at, 3},
+
+    % called from vhost_messages_parse_query/3
+    % it should delete messages for vhost at date and update stats
+    % delete_messages_at(VHost, Date) -> ok | error
+    %    Types:
+    %          VHost = list() -> "jabber.example.org"
+    %          Date = list() -> "2007-02-12"
+    {delete_messages_at, 2},
+
+    % called from ejabberd_web_admin:vhost_messages_stats/3
+    % it should return sorted list of count of messages by dates for vhost
+    % get_vhost_stats(VHost) -> {ok, [{Date1, Msgs_count1}, {Date2, Msgs_count2}, ... ]} |
+    %                           {error, Reason}
+    %    Types:
+    %          VHost = list() -> "jabber.example.org"
+    %          DateN = list() -> "2007-02-12"
+    %          Msgs_countN = number() -> 241
+    {get_vhost_stats, 1},
+
+    % called from ejabberd_web_admin:vhost_messages_stats_at/4
+    % it should return sorted list of count of messages by users at date for vhost
+    % get_vhost_stats_at(VHost, Date) -> {ok, [{User1, Msgs_count1}, {User2, Msgs_count2}, ....]} |
+    %                                    {error, Reason}
+    %    Types:
+    %          VHost = list() -> "jabber.example.org"
+    %          Date = list() -> "2007-02-12"
+    %          UserN = list() -> "admin"
+    %          Msgs_countN = number() -> 241
+    {get_vhost_stats_at, 2},
+
+    % called from ejabberd_web_admin:user_messages_stats/4
+    % it should return sorted list of count of messages by date for user at vhost
+    % get_user_stats(User, VHost) -> {ok, [{Date1, Msgs_count1}, {Date2, Msgs_count2}, ...]} |
+    %                                {error, Reason}
+    %    Types:
+    %          User = list() -> "admin"
+    %          VHost = list() -> "jabber.example.org"
+    %          DateN = list() -> "2007-02-12"
+    %          Msgs_countN = number() -> 241
+    {get_user_stats, 2},
+
+    % called from ejabberd_web_admin:user_messages_stats_at/5
+    % it should return all user messages at date
+    % get_user_messages_at(User, VHost, Date) -> {ok, Msgs} | {error, Reason}
+    %    Types:
+    %          User = list() -> "admin"
+    %          VHost = list() -> "jabber.example.org"
+    %          Date = list() -> "2007-02-12"
+    %          Msgs = list() -> [ #msg1, msg2, ... ]
+    {get_user_messages_at, 3},
+
+    % called from many places
+    % it should return list of dates for vhost
+    % get_dates(VHost) -> [Date1, Date2, ... ]
+    %    Types:
+    %          VHost = list() -> "jabber.example.org"
+    %          DateN = list() -> "2007-02-12"
+    {get_dates, 1},
+
+    % called from start
+    % it should return list with users settings for VHost in db
+    % get_users_settings(VHost) -> [#user_settings1, #user_settings2, ... ] | error
+    %    Types:
+    %          VHost = list() -> "jabber.example.org"
+    {get_users_settings, 1},
+
+    % called from many places
+    % it should return User settings at VHost from db
+    % get_user_settings(User, VHost) -> error | {ok, #user_settings}
+    %    Types:
+    %          User = list() -> "admin"
+    %          VHost = list() -> "jabber.example.org"
+    {get_user_settings, 2},
+
+    % called from web admin
+    % it should set User settings at VHost
+    % set_user_settings(User, VHost, #user_settings) -> ok | error
+    %    Types:
+    %          User = list() -> "admin"
+    %          VHost = list() -> "jabber.example.org"
+    {set_user_settings, 3},
+
+    % called from remove_user (ejabberd hook)
+    % it should remove user messages and settings at VHost
+    % drop_user(User, VHost) -> ok | error
+    %    Types:
+    %          User = list() -> "admin"
+    %          VHost = list() -> "jabber.example.org"
+    {drop_user, 2}
+   ];
+behaviour_info(_) ->
+   undefined.
--- web/ejabberd_web_admin-2.0.3.erl	2009-02-03 08:27:39.000000000 +0200
+++ web/ejabberd_web_admin.erl	2009-02-03 08:40:57.000000000 +0200
@@ -1514,25 +1514,31 @@
 
 
 user_parse_query(User, Server, Query) ->
-    case lists:keysearch("chpassword", 1, Query) of
-	{value, _} ->
-	    case lists:keysearch("password", 1, Query) of
-		{value, {_, undefined}} ->
-		    error;
-		{value, {_, Password}} ->
-		    ejabberd_auth:set_password(User, Server, Password),
-		    ok;
-		_ ->
-		    error
-	    end;
-	_ ->
-	    case lists:keysearch("removeuser", 1, Query) of
-		{value, _} ->
-		    ejabberd_auth:remove_user(User, Server),
-		    ok;
-		false ->
-		    nothing
-	    end
+    lists:foldl(fun({Action, Value}, Acc) when Acc == nothing ->
+                      user_parse_query1(Action, User, Server, Query);
+                   ({Action, Value}, Acc) ->
+                      Acc
+                end, nothing, Query).
+
+user_parse_query1("password", User, Server, Query) ->
+    nothing;
+user_parse_query1("chpassword", User, Server, Query) ->
+    case lists:keysearch("password", 1, Query) of
+        {value, {_, undefined}} ->
+            error;
+        {value, {_, Password}} ->
+            ejabberd_auth:set_password(User, Server, Password),
+            ok;
+        _ ->
+            error
+    end;
+user_parse_query1("removeuser", User, Server, Query) ->
+    ejabberd_auth:remove_user(User, Server),
+    ok;
+user_parse_query1(Action, User, Server, Query) ->
+    case ejabberd_hooks:run_fold(webadmin_user_parse_query, Server, [], [Action, User, Server, Query]) of
+         [] -> nothing;
+         Res -> Res
     end.
 
 
--- mod_muc/mod_muc_room-2.0.3.erl	2009-02-03 08:27:59.000000000 +0200
+++ mod_muc/mod_muc_room.erl	2009-02-03 08:37:26.000000000 +0200
@@ -695,6 +695,12 @@
 handle_sync_event({change_config, Config}, _From, StateName, StateData) ->
     {result, [], NSD} = change_config(Config, StateData),
     {reply, {ok, NSD#state.config}, StateName, NSD};
+handle_sync_event({get_jid_nick, Jid}, _From, StateName, StateData) ->
+    R = case ?DICT:find(jlib:jid_tolower(Jid), StateData#state.users) of
+             error -> [];
+             {ok, {user, _, Nick, _, _}} -> Nick
+        end,
+    {reply, R, StateName, StateData};
 handle_sync_event(_Event, _From, StateName, StateData) ->
     Reply = ok,
     {reply, Reply, StateName, StateData}.
--- msgs/uk-2.0.3.msg	2009-01-14 11:54:15.000000000 +0200
+++ msgs/uk.msg	2009-02-03 08:26:20.000000000 +0200
@@ -388,6 +388,35 @@
 % mod_offline_odbc.erl
 {"Your contact offline message queue is full. The message has been discarded.", "Черга повідомлень, що не були доставлені, переповнена. Повідомлення не було збережено."}.
 
+% mod_logdb
+{"Users Messages", "Повідомлення користувачів"}.
+{"Date", "Дата"}.
+{"Count", "Кількість"}.
+{"Logged messages for ", "Збережені повідомлення для "}.
+{" at ", " за "}.
+{"No logged messages for ", "Відсутні повідомлення для "}.
+{"Date, Time", "Дата, Час"}.
+{"Direction: Jid", "Напрямок: Jid"}.
+{"Subject", "Тема"}.
+{"Body", "Текст"}.
+{"Messages", "Повідомлення"}.
+{"Filter Selected", "Відфільтрувати виділені"}.
+{"Do Not Log Messages", "Не зберігати повідомлення"}.
+{"Log Messages", "Зберігати повідомлення"}.
+{"Messages logging engine", "Система збереження повідомлень"}.
+{"Default", "За замовчуванням"}.
+{"Set logging preferences", "Вкажіть налагоджування збереження повідомлень"}.
+{"Messages logging engine users", "Користувачі системи збереження повідомлень"}.
+{"Messages logging engine settings", "Налагоджування системи збереження повідомлень"}.
+{"Set run-time settings", "Вкажіть поточні налагоджування"}.
+{"Groupchat messages logging", "Збереження повідомлень типу groupchat"}.
+{"Jids/Domains to ignore", "Ігнорувати наступні jids/домени"}.
+{"Purge messages older than (days)", "Видаляти повідомлення старіші ніж (дні)"}.
+{"Poll users settings (seconds)", "Оновлювати налагоджування користувачів кожні (секунд)"}.
+{"Drop", "Видаляти"}.
+{"Do not drop", "Не видаляти"}.
+{"Drop messages on user removal", "Видаляти повідомлення під час видалення користувача"}.
+
 % Local Variables:
 % mode: erlang
 % End:
--- msgs/ru-2.0.3.msg	2009-01-14 11:54:15.000000000 +0200
+++ msgs/ru.msg	2009-02-03 08:25:31.000000000 +0200
@@ -388,6 +388,35 @@
 % mod_offline_odbc.erl
 {"Your contact offline message queue is full. The message has been discarded.", "Очередь недоставленных сообщений Вашего адресата переполнена. Сообщение не было сохранено."}.
 
+% mod_logdb.erl
+{"Users Messages", "Сообщения пользователей"}.
+{"Date", "Дата"}.
+{"Count", "Количество"}.
+{"Logged messages for ", "Сохранённые cообщения для "}.
+{" at ", " за "}.
+{"No logged messages for ", "Отсутствуют сообщения для "}.
+{"Date, Time", "Дата, Время"}.
+{"Direction: Jid", "Направление: Jid"}.
+{"Subject", "Тема"}.
+{"Body", "Текст"}.
+{"Messages", "Сообщения"}.
+{"Filter Selected", "Отфильтровать выделенные"}.
+{"Do Not Log Messages", "Не сохранять сообщения"}.
+{"Log Messages", "Сохранять сообщения"}.
+{"Messages logging engine", "Система логирования сообщений"}.
+{"Default", "По умолчанию"}.
+{"Set logging preferences", "Задайте настройки логирования"}.
+{"Messages logging engine users", "Пользователи системы логирования сообщений"}.
+{"Messages logging engine settings", "Настройки системы логирования сообщений"}.
+{"Set run-time settings", "Задайте текущие настройки"}.
+{"Groupchat messages logging", "Логирование сообщений типа groupchat"}.
+{"Jids/Domains to ignore", "Игнорировать следующие jids/домены"}.
+{"Purge messages older than (days)", "Удалять сообщения старее чем (дни)"}.
+{"Poll users settings (seconds)", "Обновлять настройки пользователей через (секунд)"}.
+{"Drop", "Удалять"}.
+{"Do not drop", "Не удалять"}.
+{"Drop messages on user removal", "Удалять сообщения при удалении пользователя"}.
+
 % Local Variables:
 % mode: erlang
 % End:
--- msgs/pl-2.0.3.msg	2009-01-14 11:54:15.000000000 +0200
+++ msgs/pl.msg	2009-02-03 08:24:33.000000000 +0200
@@ -408,6 +408,31 @@
 % mod_offline.erl
 {"Your contact offline message queue is full. The message has been discarded.", "Twoja kolejka wiadomoci offline jest pełna. Wiadomoć została odrzucona."}.
 
+% mod_logdb
+{"Users Messages", "Wiadomości użytkownika"}.
+{"Date", "Data"}.
+{"Count", "Liczba"}.
+{"Logged messages for ", "Zapisane wiadomości dla "}.
+{" at ", " o "}.
+{"No logged messages for ", "Brak zapisanych wiadomości dla "}.
+{"Date, Time", "Data, Godzina"}.
+{"Direction: Jid", "Kierunek: Jid"}.
+{"Subject", "Temat"}.
+{"Body", "Treść"}.
+{"Messages","Wiadomości"}.
+{"Filter Selected", "Odfiltruj zaznaczone"}.
+{"Do Not Log Messages", "Nie zapisuj wiadomości"}.
+{"Log Messages", "Zapisuj wiadomości"}.
+{"Messages logging engine", "System zapisywania historii rozmów"}.
+{"Default", "Domyślne"}.
+{"Set logging preferences", "Ustaw preferencje zapisywania"}.
+{"Messages logging engine settings", "Ustawienia systemu logowania"}.
+{"Set run-time settings", "Zapisz ustawienia systemu logowania"}.
+{"Groupchat messages logging", "Zapisywanie rozmów z konferencji"}.
+{"Jids/Domains to ignore", "JID/Domena która ma być ignorowana"}.
+{"Purge messages older than (days)", "Usuń wiadomości starsze niż (w dniach)"}.
+{"Poll users settings (seconds)", "Czas aktualizacji preferencji użytkowników (sekundy)"}.
+
 % Local Variables:
 % mode: erlang
 % End:
--- msgs/nl-2.0.3.msg	2009-01-14 11:54:15.000000000 +0200
+++ msgs/nl.msg	1970-01-01 03:00:00.000000000 +0300
@@ -379,6 +379,19 @@
 % mod_proxy65/mod_proxy65_service.erl
 {"ejabberd SOCKS5 Bytestreams module", "ejabberd SOCKS5 Bytestreams module"}.
 
+% mod_logdb
+{"Users Messages", "Gebruikersberichten"}.
+{"Date", "Datum"}.
+{"Count", "Aantal"}.
+{"Logged messages for ", "Gelogde berichten van "}.
+{" at ", " op "}.
+{"No logged messages for ", "Geen gelogde berichten van "}.
+{"Date, Time", "Datum en tijd"}.
+{"Direction: Jid", "Richting: Jabber ID"}.
+{"Subject", "Onderwerp"}.
+{"Body", "Berichtveld"}.
+{"Messages", "Berichten"}.
+
 % Local Variables:
 % mode: erlang
 % End:
--- ./mod_roster-2.0.3.erl	2009-02-03 08:28:12.000000000 +0200
+++ mod_roster.erl	2009-02-03 08:32:14.000000000 +0200
@@ -48,7 +48,7 @@
 -include("mod_roster.hrl").
 -include("web/ejabberd_http.hrl").
 -include("web/ejabberd_web_admin.hrl").
-
+-include("mod_logdb.hrl").
 
 start(Host, Opts) ->
     IQDisc = gen_mod:get_opt(iqdisc, Opts, one_queue),
@@ -829,6 +829,14 @@
     Res = user_roster_parse_query(User, Server, Items1, Query),
     Items = mnesia:dirty_index_read(roster, US, #roster.us),
     SItems = lists:sort(Items),
+
+    Settings = case gen_mod:is_loaded(Server, mod_logdb) of
+         true ->
+             mod_logdb:get_user_settings(User, Server);
+         false ->
+             []
+    end,
+
     FItems =
 	case SItems of
 	    [] ->
@@ -876,7 +884,33 @@
 					      [?INPUTT("submit",
 						       "remove" ++
 						       ejabberd_web_admin:term_to_id(R#roster.jid),
-						       "Remove")])])
+						       "Remove")]),
+                                         case gen_mod:is_loaded(Server, mod_logdb) of
+                                              true ->
+                                                 Peer = jlib:jid_to_string(R#roster.jid),
+                                                 A = lists:member(Peer, Settings#user_settings.dolog_list),
+                                                 B = lists:member(Peer, Settings#user_settings.donotlog_list),
+                                                 {Name, Value} =
+                                                   if
+                                                     A ->
+                                                       {"donotlog", "Do Not Log Messages"};
+                                                     B ->
+                                                       {"dolog", "Log Messages"};
+                                                     Settings#user_settings.dolog_default == true ->
+                                                       {"donotlog", "Do Not Log Messages"};
+                                                     Settings#user_settings.dolog_default == false ->
+                                                       {"dolog", "Log Messages"}
+                                                   end,
+
+                                                 ?XAE("td", [{"class", "valign"}],
+                                                      [?INPUTT("submit",
+                                                               Name ++
+                                                               ejabberd_web_admin:term_to_id(R#roster.jid),
+                                                               Value)]);
+                                              false ->
+                                                 ?X([])
+                                         end
+                                        ])
 			    end, SItems))])]
 	end,
     [?XC("h1", ?T("Roster of ") ++ us_to_list(US))] ++
@@ -958,11 +992,42 @@
 						 {"subscription", "remove"}],
 						[]}]}}),
 			      throw(submitted);
-			  false ->
-			      ok
-		      end
-
-	      end
+                          false ->
+                            case lists:keysearch(
+                                   "donotlog" ++ ejabberd_web_admin:term_to_id(JID), 1, Query) of
+                                {value, _} ->
+                                     Peer = jlib:jid_to_string(JID),
+                                     Settings = mod_logdb:get_user_settings(User, Server),
+                                     DNLL = case lists:member(Peer, Settings#user_settings.donotlog_list) of
+                                                 false -> lists:append(Settings#user_settings.donotlog_list, [Peer]);
+                                                 true -> Settings#user_settings.donotlog_list
+                                            end,
+                                     DLL = lists:delete(jlib:jid_to_string(JID), Settings#user_settings.dolog_list),
+                                     Sett = Settings#user_settings{donotlog_list=DNLL, dolog_list=DLL},
+                                     % TODO: check returned value
+                                     ok = mod_logdb:set_user_settings(User, Server, Sett),
+                                     throw(nothing);
+                                false ->
+                                   case lists:keysearch(
+                                          "dolog" ++ ejabberd_web_admin:term_to_id(JID), 1, Query) of
+                                       {value, _} ->
+                                          Peer = jlib:jid_to_string(JID),
+                                          Settings = mod_logdb:get_user_settings(User, Server),
+                                          DLL = case lists:member(Peer, Settings#user_settings.dolog_list) of
+                                                     false -> lists:append(Settings#user_settings.dolog_list, [Peer]);
+                                                     true -> Settings#user_settings.dolog_list
+                                                end,
+                                          DNLL = lists:delete(jlib:jid_to_string(JID), Settings#user_settings.donotlog_list),
+                                          Sett = Settings#user_settings{donotlog_list=DNLL, dolog_list=DLL},
+                                          % TODO: check returned value
+                                          ok = mod_logdb:set_user_settings(User, Server, Sett),
+                                          throw(nothing);
+                                       false ->
+                                           ok
+                                   end % dolog
+                            end % donotlog
+                      end % remove
+              end % validate
       end, Items),
     nothing.
 
--- ./mod_roster_odbc-2.0.3.erl	2009-02-03 08:28:26.000000000 +0200
+++ mod_roster_odbc.erl	2009-02-03 08:47:04.000000000 +0200
@@ -48,7 +48,7 @@
 -include("mod_roster.hrl").
 -include("web/ejabberd_http.hrl").
 -include("web/ejabberd_web_admin.hrl").
-
+-include("mod_logdb.hrl").
 
 start(Host, Opts) ->
     IQDisc = gen_mod:get_opt(iqdisc, Opts, one_queue),
@@ -937,6 +937,14 @@
     Res = user_roster_parse_query(User, Server, Items1, Query),
     Items = get_roster(LUser, LServer),
     SItems = lists:sort(Items),
+
+    Settings = case gen_mod:is_loaded(Server, mod_logdb) of
+         true ->
+             mod_logdb:get_user_settings(User, Server);
+         false ->
+             []
+    end,
+
     FItems =
 	case SItems of
 	    [] ->
@@ -984,7 +992,33 @@
 					      [?INPUTT("submit",
 						       "remove" ++
 						       ejabberd_web_admin:term_to_id(R#roster.jid),
-						       "Remove")])])
+                                                      "Remove")]),
+                                         case gen_mod:is_loaded(Server, mod_logdb) of
+                                              true ->
+                                                 Peer = jlib:jid_to_string(R#roster.jid),
+                                                 A = lists:member(Peer, Settings#user_settings.dolog_list),
+                                                 B = lists:member(Peer, Settings#user_settings.donotlog_list),
+                                                 {Name, Value} =
+                                                   if
+                                                     A ->
+                                                       {"donotlog", "Do Not Log Messages"};
+                                                     B ->
+                                                       {"dolog", "Log Messages"};
+                                                     Settings#user_settings.dolog_default == true ->
+                                                       {"donotlog", "Do Not Log Messages"};
+                                                     Settings#user_settings.dolog_default == false ->
+                                                       {"dolog", "Log Messages"}
+                                                   end,
+
+                                                 ?XAE("td", [{"class", "valign"}],
+                                                      [?INPUTT("submit",
+                                                               Name ++
+                                                               ejabberd_web_admin:term_to_id(R#roster.jid),
+                                                               Value)]);
+                                              false ->
+                                                 ?X([])
+                                         end
+                                        ])
 			    end, SItems))])]
 	end,
     [?XC("h1", ?T("Roster of ") ++ us_to_list(US))] ++
@@ -1066,11 +1100,42 @@
 						 {"subscription", "remove"}],
 						[]}]}}),
 			      throw(submitted);
-			  false ->
-			      ok
-		      end
-
-	      end
+                          false ->
+                            case lists:keysearch(
+                                   "donotlog" ++ ejabberd_web_admin:term_to_id(JID), 1, Query) of
+                                {value, _} ->
+                                     Peer = jlib:jid_to_string(JID),
+                                     Settings = mod_logdb:get_user_settings(User, Server),
+                                     DNLL = case lists:member(Peer, Settings#user_settings.donotlog_list) of
+                                                 false -> lists:append(Settings#user_settings.donotlog_list, [Peer]);
+                                                 true -> Settings#user_settings.donotlog_list
+                                            end,
+                                     DLL = lists:delete(jlib:jid_to_string(JID), Settings#user_settings.dolog_list),
+                                     Sett = Settings#user_settings{donotlog_list=DNLL, dolog_list=DLL},
+                                     % TODO: check returned value
+                                     ok = mod_logdb:set_user_settings(User, Server, Sett),
+                                     throw(nothing);
+                                false ->
+                                   case lists:keysearch(
+                                          "dolog" ++ ejabberd_web_admin:term_to_id(JID), 1, Query) of
+                                       {value, _} ->
+                                          Peer = jlib:jid_to_string(JID),
+                                          Settings = mod_logdb:get_user_settings(User, Server),
+                                          DLL = case lists:member(Peer, Settings#user_settings.dolog_list) of
+                                                     false -> lists:append(Settings#user_settings.dolog_list, [Peer]);
+                                                     true -> Settings#user_settings.dolog_list
+                                                end,
+                                          DNLL = lists:delete(jlib:jid_to_string(JID), Settings#user_settings.donotlog_list),
+                                          Sett = Settings#user_settings{donotlog_list=DNLL, dolog_list=DLL},
+                                          % TODO: check returned value
+                                          ok = mod_logdb:set_user_settings(User, Server, Sett),
+                                          throw(nothing);
+                                       false ->
+                                           ok
+                                   end % dolog
+                            end % donotlog
+                      end % remove
+              end % validate
       end, Items),
     nothing.