summaryrefslogtreecommitdiffstats
path: root/js/app/services/models/foldermodel.coffee
blob: f7616f260858e4b5cff259daf0c221bcd76a389b (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
###

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/>.

###

angular.module('News').factory 'FolderModel',
['_Model', '_EqualQuery', (_Model, _EqualQuery) ->

	class FolderModel extends _Model

		constructor: ->
			@_nameCache = {}
			super()


		add: (data, clearCache=true) ->
			###
			We want to add a folder on the client side before
			we have an id from the server. Once the server returns
			an id, we have to update the existing item without id
			###
			data.name = @_transformName(data.name)

			item = @_nameCache[data.name]

			# update in the following cases:
			# * the id is defined and the item exists
			# * the id is not defined and the name exists in the cache
			updateById = angular.isDefined(data.id) and
			angular.isDefined(@getById(data.id))
			
			updateByName = angular.isDefined(item) and
			angular.isUndefined(item.id)
			
			if updateById or updateByName
				@update(data, clearCache)
			else
				# if the item is not yet in the name cache it must be added
				@_nameCache[data.name] = data
				
				# in case there is an id it can go through the normal add method
				if angular.isDefined(data.id)
					super(data, clearCache)

				# if there is no id we just want it to appear in the list
				else
					@_data.push(data)
					if clearCache
						@_invalidateCache()


		update: (data, clearCache=true) ->
			# only when the id on the updated item does not exist we wish
			# to update by name, otherwise we always update by id
			data.name = @_transformName(data.name)

			item = @_nameCache[data.name]
			# update by name
			if angular.isUndefined(data.id)	and angular.isDefined(item)
				angular.extend(item, data)
			
			else
				# this case happens when there exists an element with the same
				# name but it has no id yet
				if angular.isDefined(data.id) and
				angular.isDefined(item) and
				angular.isUndefined(item.id)
					item.id = data.id
					@_dataMap[data.id] = item

				# if an update comes in and we update because of the id
				# we need to fix the name cache if the name was changed
				itemWithId = @getById(data.id)
				if angular.isDefined(itemWithId) and itemWithId.name != data.name
					delete @_nameCache[itemWithId.name]
					@_nameCache[data.name] = itemWithId

				super(data, clearCache)
				


		getByName: (folderName) ->
			folderName = @_transformName(folderName)
			return @_nameCache[folderName]


		clear: ->
			@_nameCache = {}
			super()


		removeById: (id, clearCache=true) ->
			item = @getById(id)
			delete @_nameCache[@_transformName(item.name)]
			super(id, clearCache)


		_transformName: (folderName) ->
			return folderName.trim().toLowerCase()


		removeByName: (name, clearCache=true) ->
			###
			Remove an entry by id
			###
			name = name.toLowerCase()

			# remove from data map
			for key, value of @_dataMap
				if @_dataMap[key].name == name
					delete @_dataMap[key]
					break

			for entry, counter in @_data
				if entry.name == name
					@_data.splice(counter, 1)
					delete @_nameCache[name]

					if clearCache
						@_invalidateCache()
					break


	return new FolderModel()
]