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###
ownCloud - News
@author Bernhard Posselt
@copyright 2012 Bernhard Posselt dev@bernhard-posselt.com
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
License as published by the Free Software Foundation; either
version 3 of the License, or any later version.
This library 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 AFFERO GENERAL PUBLIC LICENSE for more details.
You should have received a copy of the GNU Affero General Public
License along with this library. If not, see <http://www.gnu.org/licenses/>.
###
# Used for properly distributing received model data from the server
angular.module('News').factory '_Publisher', ->
class Publisher
constructor: ->
@_subscriptions = {}
# Use this to subscribe to a certain hashkey in the returned json data
# dictionary.
# If you send JSON from the server, you'll receive something like this
#
# {
# data: {
# modelName: {
# create: [{id: 1, name: 'john'}, {id: 2, name: 'ron'}],
# update: [],
# delete: []
# }
# }
# }
#
# To get the array ['one', 'two'] passed to your object, just subscribe
# to the key:
# Publisher.subscribeObjectTo('modelName', myModelInstance)
#
subscribeObjectTo: (object, name) ->
@_subscriptions[name] or= []
@_subscriptions[name].push(object)
# This will publish data from the server to all registered subscribers
# The parameter 'name' is the name under which subscribers have registered
publishDataTo: (data, name) ->
for subscriber in @_subscriptions[name] || []
subscriber.handle(data)
return Publisher
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