70 lines
2.3 KiB
Erlang
70 lines
2.3 KiB
Erlang
%%%-------------------------------------------------------------------
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%%% @author Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%% @copyright (C) 2016, Evgeny Khramtsov
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%%% @doc
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%%%
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%%% @end
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%%% Created : 13 Apr 2016 by Evgeny Khramtsov <ekhramtsov@process-one.net>
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%%%-------------------------------------------------------------------
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-module(mod_vcard_xupdate_mnesia).
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-behaviour(mod_vcard_xupdate).
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%% API
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-export([init/2, import/2, add_xupdate/3, get_xupdate/2, remove_xupdate/2]).
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-include("mod_vcard_xupdate.hrl").
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-include("logger.hrl").
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%%%===================================================================
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%%% API
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%%%===================================================================
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init(_Host, _Opts) ->
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mnesia:create_table(vcard_xupdate,
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[{disc_copies, [node()]},
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{attributes,
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record_info(fields, vcard_xupdate)}]),
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update_table().
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add_xupdate(LUser, LServer, Hash) ->
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F = fun () ->
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mnesia:write(#vcard_xupdate{us = {LUser, LServer},
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hash = Hash})
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end,
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mnesia:transaction(F).
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get_xupdate(LUser, LServer) ->
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case mnesia:dirty_read(vcard_xupdate, {LUser, LServer})
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of
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[#vcard_xupdate{hash = Hash}] -> Hash;
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_ -> undefined
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end.
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remove_xupdate(LUser, LServer) ->
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F = fun () ->
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mnesia:delete({vcard_xupdate, {LUser, LServer}})
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end,
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mnesia:transaction(F).
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import(_LServer, #vcard_xupdate{} = R) ->
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mnesia:dirty_write(R).
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%%%===================================================================
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%%% Internal functions
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%%%===================================================================
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update_table() ->
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Fields = record_info(fields, vcard_xupdate),
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case mnesia:table_info(vcard_xupdate, attributes) of
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Fields ->
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ejabberd_config:convert_table_to_binary(
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vcard_xupdate, Fields, set,
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fun(#vcard_xupdate{us = {U, _}}) -> U end,
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fun(#vcard_xupdate{us = {U, S}, hash = Hash} = R) ->
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R#vcard_xupdate{us = {iolist_to_binary(U),
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iolist_to_binary(S)},
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hash = iolist_to_binary(Hash)}
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end);
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_ ->
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?INFO_MSG("Recreating vcard_xupdate table", []),
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mnesia:transform_table(vcard_xupdate, ignore, Fields)
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end.
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