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authorBernhard Posselt <dev@bernhard-posselt.com>2014-04-08 22:19:19 +0200
committerBernhard Posselt <dev@bernhard-posselt.com>2014-04-08 22:19:19 +0200
commit68f5a01dc692e9bf6c0a60e584d1600adcae3a62 (patch)
tree372b2366855b96a7b724c426c7c5ae0241e933f1 /js/app/services
parenta9b34deefd67e08a79ddefb0e1f980f6a6c1249d (diff)
port javascript from appframework
Diffstat (limited to 'js/app/services')
-rw-r--r--js/app/services/loading.coffee50
-rw-r--r--js/app/services/model.coffee128
-rw-r--r--js/app/services/notification.coffee26
-rw-r--r--js/app/services/notimplementederror.coffee35
-rw-r--r--js/app/services/publisher.coffee64
-rw-r--r--js/app/services/queries/biggerthan.coffee46
-rw-r--r--js/app/services/queries/biggerthanequal.coffee45
-rw-r--r--js/app/services/queries/contains.coffee54
-rw-r--r--js/app/services/queries/doesnotcontain.coffee54
-rw-r--r--js/app/services/queries/equal.coffee54
-rw-r--r--js/app/services/queries/lessthan.coffee45
-rw-r--r--js/app/services/queries/lessthanequal.coffee45
-rw-r--r--js/app/services/queries/maximum.coffee46
-rw-r--r--js/app/services/queries/minimum.coffee46
-rw-r--r--js/app/services/queries/query.coffee49
-rw-r--r--js/app/services/queries/unequal.coffee54
-rw-r--r--js/app/services/request.coffee150
-rw-r--r--js/app/services/router.coffee26
-rw-r--r--js/app/services/utils.coffee26
19 files changed, 1043 insertions, 0 deletions
diff --git a/js/app/services/loading.coffee b/js/app/services/loading.coffee
new file mode 100644
index 000000000..c68cc9f40
--- /dev/null
+++ b/js/app/services/loading.coffee
@@ -0,0 +1,50 @@
+###
+
+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/>.
+
+###
+
+
+# Simple class which can be used to show loading events when ajax events are
+# fired
+angular.module('News').factory '_Loading', ->
+
+ class Loading
+
+ constructor: ->
+ @_count = 0
+
+
+ increase: ->
+ @_count += 1
+
+
+ decrease: ->
+ @_count -= 1
+
+
+ getCount: ->
+ return @_count
+
+
+ isLoading: ->
+ return @_count > 0
+
+
+ return Loading \ No newline at end of file
diff --git a/js/app/services/model.coffee b/js/app/services/model.coffee
new file mode 100644
index 000000000..238e5bcf0
--- /dev/null
+++ b/js/app/services/model.coffee
@@ -0,0 +1,128 @@
+###
+
+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/>.
+
+###
+
+
+# Model which offers basic crud for storing your data
+angular.module('News').factory '_Model', ->
+
+ class Model
+
+ constructor: ->
+ @_data = []
+ @_dataMap = {}
+ @_filterCache = {}
+
+
+ handle: (data) ->
+ ###
+ Redirects to add method
+ ###
+ for item in data
+ @add(item)
+
+
+ add: (data, clearCache=true) ->
+ ###
+ Adds a new entry or updates an entry if the id exists already
+ ###
+ if clearCache
+ @_invalidateCache()
+ if angular.isDefined(@_dataMap[data.id])
+ @update(data, clearCache)
+ else
+ @_data.push(data)
+ @_dataMap[data.id] = data
+
+
+ update: (data, clearCache=true) ->
+ ###
+ Update an entry by searching for its id
+ ###
+ if clearCache
+ @_invalidateCache()
+ entry = @getById(data.id)
+ for key, value of data
+ if key == 'id'
+ continue
+ else
+ entry[key] = value
+
+
+ getById: (id) ->
+ ###
+ Return an entry by its id
+ ###
+ return @_dataMap[id]
+
+
+ getAll: ->
+ ###
+ Returns all stored entries
+ ###
+ return @_data
+
+
+ removeById: (id, clearCache=true) ->
+ ###
+ Remove an entry by id
+ ###
+ for entry, counter in @_data
+ if entry.id == id
+ @_data.splice(counter, 1)
+ data = @_dataMap[id]
+ delete @_dataMap[id]
+ if clearCache
+ @_invalidateCache()
+ return data
+
+
+ clear: ->
+ ###
+ Removes all cached elements
+ ###
+ @_data.length = 0
+ @_dataMap = {}
+ @_invalidateCache()
+
+
+ _invalidateCache: ->
+ @_filterCache = {}
+
+
+ get: (query) ->
+ ###
+ Calls, caches and returns filtered results
+ ###
+ hash = query.hashCode()
+ if not angular.isDefined(@_filterCache[hash])
+ @_filterCache[hash] = query.exec(@_data)
+ return @_filterCache[hash]
+
+
+ size: ->
+ ###
+ Return the number of all stored entries
+ ###
+ return @_data.length
+
+
+ return Model \ No newline at end of file
diff --git a/js/app/services/notification.coffee b/js/app/services/notification.coffee
new file mode 100644
index 000000000..fefc9e306
--- /dev/null
+++ b/js/app/services/notification.coffee
@@ -0,0 +1,26 @@
+###
+
+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/>.
+
+###
+
+
+# Inject notification into angular to make testing easier
+angular.module('News').factory 'Notification', ->
+ return OC.Notification \ No newline at end of file
diff --git a/js/app/services/notimplementederror.coffee b/js/app/services/notimplementederror.coffee
new file mode 100644
index 000000000..1c1b480ea
--- /dev/null
+++ b/js/app/services/notimplementederror.coffee
@@ -0,0 +1,35 @@
+###
+
+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/>.
+
+###
+
+
+# Model which offers basic crud for storing your data
+angular.module('News').factory '_NotImplementedError', ->
+
+ class NotImplementedError
+
+ constructor: (@_msg) ->
+
+ getMessage: ->
+ return @_msg
+
+
+ return NotImplementedError \ No newline at end of file
diff --git a/js/app/services/publisher.coffee b/js/app/services/publisher.coffee
new file mode 100644
index 000000000..acf2ee2c0
--- /dev/null
+++ b/js/app/services/publisher.coffee
@@ -0,0 +1,64 @@
+###
+
+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 \ No newline at end of file
diff --git a/js/app/services/queries/biggerthan.coffee b/js/app/services/queries/biggerthan.coffee
new file mode 100644
index 000000000..a8ab7aea4
--- /dev/null
+++ b/js/app/services/queries/biggerthan.coffee
@@ -0,0 +1,46 @@
+###
+
+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/>.
+
+###
+
+
+# A query for returning a list with elements bigger than equal to the provided
+# one
+angular.module('News').factory '_BiggerThanQuery', ['_Query',
+(_Query) ->
+
+ class BiggerThanQuery extends _Query
+
+ constructor: (@_field, @_value) ->
+ name = 'biggerthan'
+ super(name, [@_field, @_value])
+
+
+ exec: (data) ->
+ filtered = []
+ for entry in data
+ if entry[@_field] > @_value
+ filtered.push(entry)
+
+ return filtered
+
+
+ return BiggerThanQuery
+]
diff --git a/js/app/services/queries/biggerthanequal.coffee b/js/app/services/queries/biggerthanequal.coffee
new file mode 100644
index 000000000..0733ced20
--- /dev/null
+++ b/js/app/services/queries/biggerthanequal.coffee
@@ -0,0 +1,45 @@
+###
+
+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/>.
+
+###
+
+
+# A query for returning a list with elements equal to the provided one
+angular.module('News').factory '_BiggerThanEqualQuery', ['_Query',
+(_Query) ->
+
+ class BiggerThanEqualQuery extends _Query
+
+ constructor: (@_field, @_value) ->
+ name = 'biggerthanequal'
+ super(name, [@_field, @_value])
+
+
+ exec: (data) ->
+ filtered = []
+ for entry in data
+ if entry[@_field] >= @_value
+ filtered.push(entry)
+
+ return filtered
+
+
+ return BiggerThanEqualQuery
+]
diff --git a/js/app/services/queries/contains.coffee b/js/app/services/queries/contains.coffee
new file mode 100644
index 000000000..f1ade5e59
--- /dev/null
+++ b/js/app/services/queries/contains.coffee
@@ -0,0 +1,54 @@
+###
+
+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/>.
+
+###
+
+
+# A query for returning a list with elements that contain the search term
+angular.module('News').factory '_ContainsQuery', ['_Query',
+(_Query) ->
+
+ class ContainsQuery extends _Query
+
+ constructor: (@_field, @_value, @_caseInsensitive=false) ->
+ name = 'contains'
+ super(name, [@_field, @_value, @_caseInsensitive])
+
+
+ exec: (data) ->
+ filtered = []
+
+ if @_caseInsensitive
+ @_value = @_value.toLowerCase()
+
+ for entry in data
+ if @_caseInsensitive
+ field = entry[@_field].toLowerCase()
+ else
+ field = entry[@_field]
+
+ if field.indexOf(@_value) != -1
+ filtered.push(entry)
+
+ return filtered
+
+
+ return ContainsQuery
+]
diff --git a/js/app/services/queries/doesnotcontain.coffee b/js/app/services/queries/doesnotcontain.coffee
new file mode 100644
index 000000000..a99d18a04
--- /dev/null
+++ b/js/app/services/queries/doesnotcontain.coffee
@@ -0,0 +1,54 @@
+###
+
+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/>.
+
+###
+
+
+# A query for returning a list with elements that does not contain the search
+# term
+angular.module('News').factory '_DoesNotContainQuery', ['_Query',
+(_Query) ->
+
+ class DoesNotContainQuery extends _Query
+
+ constructor: (@_field, @_value, @_caseInsensitive=false) ->
+ name = 'doesnotcontain'
+ super(name, [@_field, @_value, @_caseInsensitive])
+
+
+ exec: (data) ->
+ filtered = []
+ if @_caseInsensitive
+ @_value = @_value.toLowerCase()
+
+ for entry in data
+ if @_caseInsensitive
+ field = entry[@_field].toLowerCase()
+ else
+ field = entry[@_field]
+
+ if field.indexOf(@_value) == -1
+ filtered.push(entry)
+
+ return filtered
+
+
+ return DoesNotContainQuery
+]
diff --git a/js/app/services/queries/equal.coffee b/js/app/services/queries/equal.coffee
new file mode 100644
index 000000000..06f9f0abb
--- /dev/null
+++ b/js/app/services/queries/equal.coffee
@@ -0,0 +1,54 @@
+###
+
+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/>.
+
+###
+
+
+# A query for returning a list with elements equal to the provided one
+angular.module('News').factory '_EqualQuery', ['_Query',
+(_Query) ->
+
+ class EqualQuery extends _Query
+
+ constructor: (@_field, @_value, @_caseInsensitive=false) ->
+ name = 'equal'
+ super(name, [@_field, @_value, @_caseInsensitive])
+
+
+ exec: (data) ->
+ equal = []
+
+ if @_caseInsensitive
+ @_value = @_value.toLowerCase()
+
+ for entry in data
+ if @_caseInsensitive
+ field = entry[@_field].toLowerCase()
+ else
+ field = entry[@_field]
+
+ if field == @_value
+ equal.push(entry)
+
+ return equal
+
+
+ return EqualQuery
+]
diff --git a/js/app/services/queries/lessthan.coffee b/js/app/services/queries/lessthan.coffee
new file mode 100644
index 000000000..94898b371
--- /dev/null
+++ b/js/app/services/queries/lessthan.coffee
@@ -0,0 +1,45 @@
+###
+
+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/>.
+
+###
+
+
+# A query for returning a list with elements less than to the provided one
+angular.module('News').factory '_LessThanQuery', ['_Query',
+(_Query) ->
+
+ class LessThanQuery extends _Query
+
+ constructor: (@_field, @_value) ->
+ name = 'lessthan'
+ super(name, [@_field, @_value])
+
+
+ exec: (data) ->
+ filtered = []
+ for entry in data
+ if entry[@_field] < @_value
+ filtered.push(entry)
+
+ return filtered
+
+
+ return LessThanQuery
+]
diff --git a/js/app/services/queries/lessthanequal.coffee b/js/app/services/queries/lessthanequal.coffee
new file mode 100644
index 000000000..ab27032a2
--- /dev/null
+++ b/js/app/services/queries/lessthanequal.coffee
@@ -0,0 +1,45 @@
+###
+
+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/>.
+
+###
+
+
+# A query for returning a list with elements less than equal to the provided one
+angular.module('News').factory '_LessThanEqualQuery', ['_Query',
+(_Query) ->
+
+ class LessThanEqualQuery extends _Query
+
+ constructor: (@_field, @_value) ->
+ name = 'lessthanequal'
+ super(name, [@_field, @_value])
+
+
+ exec: (data) ->
+ filtered = []
+ for entry in data
+ if entry[@_field] <= @_value
+ filtered.push(entry)
+
+ return filtered
+
+
+ return LessThanEqualQuery
+]
diff --git a/js/app/services/queries/maximum.coffee b/js/app/services/queries/maximum.coffee
new file mode 100644
index 000000000..09f595cd8
--- /dev/null
+++ b/js/app/services/queries/maximum.coffee
@@ -0,0 +1,46 @@
+###
+
+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/>.
+
+###
+
+
+# A query for returning the maximum of an array based on the object
+angular.module('News').factory '_MaximumQuery', ['_Query',
+(_Query) ->
+
+ class MaximumQuery extends _Query
+
+ constructor: (@_field) ->
+ name = 'maximum'
+ super(name, [@_field])
+
+
+ exec: (data) ->
+ maximum = undefined
+ for entry in data
+ if angular.isUndefined(maximum) or
+ entry[@_field] > maximum[@_field]
+ maximum = entry
+
+ return maximum
+
+
+ return MaximumQuery
+]
diff --git a/js/app/services/queries/minimum.coffee b/js/app/services/queries/minimum.coffee
new file mode 100644
index 000000000..db77a9bf9
--- /dev/null
+++ b/js/app/services/queries/minimum.coffee
@@ -0,0 +1,46 @@
+###
+
+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/>.
+
+###
+
+
+# A query for returning the minium of an array based on the object
+angular.module('News').factory '_MinimumQuery', ['_Query',
+(_Query) ->
+
+ class MinimumQuery extends _Query
+
+ constructor: (@_field) ->
+ name = 'minimum'
+ super(name, [@_field])
+
+
+ exec: (data) ->
+ minimum = undefined
+ for entry in data
+ if angular.isUndefined(minimum) or
+ entry[@_field] < minimum[@_field]
+ minimum = entry
+
+ return minimum
+
+
+ return MinimumQuery
+]
diff --git a/js/app/services/queries/query.coffee b/js/app/services/queries/query.coffee
new file mode 100644
index 000000000..ba4e1c21e
--- /dev/null
+++ b/js/app/services/queries/query.coffee
@@ -0,0 +1,49 @@
+###
+
+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/>.
+
+###
+
+
+# Parentclass to inherit from for defining own model query
+angular.module('News').factory '_Query', ['_NotImplementedError',
+(_NotImplementedError) ->
+
+ class Query
+
+ constructor: (@_name, @_args=[]) ->
+
+
+ exec: (data) ->
+ throw new _NotImplementedError('Not implemented')
+
+
+ hashCode: (filter) ->
+ hash = @_name
+ for arg in @_args
+ if angular.isString(arg)
+ arg = arg.replace(/_/gi, '__')
+ hash += '_' + arg
+
+ return hash
+
+
+ return Query
+
+] \ No newline at end of file
diff --git a/js/app/services/queries/unequal.coffee b/js/app/services/queries/unequal.coffee
new file mode 100644
index 000000000..d76847bfd
--- /dev/null
+++ b/js/app/services/queries/unequal.coffee
@@ -0,0 +1,54 @@
+###
+
+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 pu