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/modules/mod_signal/actions/action_signal_disconnect.erl

https://code.google.com/p/zotonic/
Erlang | 47 lines | 20 code | 8 blank | 19 comment | 0 complexity | 983ac99bdb691be4682349ce0b2d16cd MD5 | raw file
 1%% @author Maas-Maarten Zeeman <mmzeeman@xs4all.nl>
 2%% @copyright 2010 Maas-Maarten Zeeman
 3%% Date: 2010-12-03
 4%% @doc Disconnect a page from a signal
 5
 6%% Copyright 2010 Maas-Maarten Zeeman
 7%%
 8%% Licensed under the Apache License, Version 2.0 (the "License");
 9%% you may not use this file except in compliance with the License.
10%% You may obtain a copy of the License at
11%% 
12%%     http://www.apache.org/licenses/LICENSE-2.0
13%% 
14%% Unless required by applicable law or agreed to in writing, software
15%% distributed under the License is distributed on an "AS IS" BASIS,
16%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17%% See the License for the specific language governing permissions and
18%% limitations under the License.
19
20-module(action_signal_disconnect).
21-author("Maas-Maarten Zeeman <mmzeeman@xs4all.nl>").
22 
23-include("zotonic.hrl").
24-export([render_action/4, event/2]).
25
26%
27render_action(TriggerId, TargetId, Args, Context) ->
28    Signal = proplists:get_value(signal, Args),
29    Name = proplists:get_value(name, Args),
30  
31    ?DEBUG(Name),
32    
33    Postback = {disconnect, [{signal, Signal}, {name, Name}]},
34    
35    {Script, _Context} = z_render:make_postback(Postback, click, TriggerId, TargetId, ?MODULE, Context),
36    {Script, Context}.
37
38%
39event({postback, {disconnect, [{signal, Signal}, {name, Name}]}, _TriggerId, _TargetId}, Context) ->
40    ?DEBUG(Name),
41    case action_signal_connect:get_slot(Name, Context) of
42	undefined -> ok;
43	Slot ->
44	    mod_signal:disconnect(Signal, Slot, Context)
45    end,
46    action_signal_connect:delete_slot(Name, Context),
47    Context.