anchor.diff:  add_arg_to_action(Arg, {postback, [{postback, {Action, ArgList}} | Rest]}) ->
       {postback, [{postback, {Action, [Arg | ArgList]}} | Rest]};
   add_arg_to_action(_A, B) ->
  -    B.+    B.
  
positive.code: add_content_group(EventProps, Props, Context) ->
      case proplists:get_value(subject_id, EventProps) of
          undefined ->
              [ {proplists:get_value(content_group_id, EventProps)} | Props ];
          SubjectId when is_integer(SubjectId) ->
              ContentGroupdId = case proplists:get_value(content_group_id, EventProps) of
                                      undefined -> m_rsc:p_no_acl(SubjectId, content_group_id, Context);
  
negative.code: %% @copyright 2009 Marc Worrell
  %% Date: 2009-04-27
  %% @doc Open a dialog with some fields to upload a new media.
  
  %% Copyright 2009 Marc Worrell
  %%
  %% Licensed under the Apache License, Version 2.0 (the "License");
  %% you may not use this file except in compliance with the License.
  %% You may obtain a copy of the License at
  %%
  %%     http://www.apache.org/licenses/LICENSE-2.0
  %%
  %% Unless required by applicable law or agreed to in writing, software
  %% distributed under the License is distributed on an "AS IS" BASIS,
  %% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  %% See the License for the specific language governing permissions and
  %% limitations under the License.
  
  -module(action_ginger_dialog_media_upload).
  -author("Marc Worrell <marc@worrell.nl").
  