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%%%-------------------------------------------------------------------
%%% File : mod_vcard_xupdate_mnesia.erl
%%% Author : Evgeny Khramtsov <ekhramtsov@process-one.net>
%%% Created : 13 Apr 2016 by Evgeny Khramtsov <ekhramtsov@process-one.net>
%%%
%%%
%%% ejabberd, Copyright (C) 2002-2016 ProcessOne
%%%
%%% This program is free software; you can redistribute it and/or
%%% modify it under the terms of the GNU General Public License as
%%% published by the Free Software Foundation; either version 2 of the
%%% License, or (at your option) any later version.
%%%
%%% This program is distributed in the hope that it will be useful,
%%% but WITHOUT ANY WARRANTY; without even the implied warranty of
%%% MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
%%% General Public License for more details.
%%%
%%% You should have received a copy of the GNU General Public License along
%%% with this program; if not, write to the Free Software Foundation, Inc.,
%%% 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
%%%
%%%----------------------------------------------------------------------
-module(mod_vcard_xupdate_mnesia).
-behaviour(mod_vcard_xupdate).
%% API
-export([init/2, import/3, add_xupdate/3, get_xupdate/2, remove_xupdate/2]).
-include("mod_vcard_xupdate.hrl").
-include("logger.hrl").
%%%===================================================================
%%% API
%%%===================================================================
init(_Host, _Opts) ->
ejabberd_mnesia:create(?MODULE, vcard_xupdate,
[{disc_copies, [node()]},
{attributes,
record_info(fields, vcard_xupdate)}]),
update_table().
add_xupdate(LUser, LServer, Hash) ->
F = fun () ->
mnesia:write(#vcard_xupdate{us = {LUser, LServer},
hash = Hash})
end,
mnesia:transaction(F).
get_xupdate(LUser, LServer) ->
case mnesia:dirty_read(vcard_xupdate, {LUser, LServer})
of
[#vcard_xupdate{hash = Hash}] -> Hash;
_ -> undefined
end.
remove_xupdate(LUser, LServer) ->
F = fun () ->
mnesia:delete({vcard_xupdate, {LUser, LServer}})
end,
mnesia:transaction(F).
import(LServer, <<"vcard_xupdate">>, [LUser, Hash, _TimeStamp]) ->
mnesia:dirty_write(
#vcard_xupdate{us = {LUser, LServer}, hash = Hash}).
%%%===================================================================
%%% Internal functions
%%%===================================================================
update_table() ->
Fields = record_info(fields, vcard_xupdate),
case mnesia:table_info(vcard_xupdate, attributes) of
Fields ->
ejabberd_config:convert_table_to_binary(
vcard_xupdate, Fields, set,
fun(#vcard_xupdate{us = {U, _}}) -> U end,
fun(#vcard_xupdate{us = {U, S}, hash = Hash} = R) ->
R#vcard_xupdate{us = {iolist_to_binary(U),
iolist_to_binary(S)},
hash = iolist_to_binary(Hash)}
end);
_ ->
?INFO_MSG("Recreating vcard_xupdate table", []),
mnesia:transform_table(vcard_xupdate, ignore, Fields)
end.
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