diff --git a/app/coffee/modules/backlog/main.coffee b/app/coffee/modules/backlog/main.coffee
index 65d2b119..f8091c8e 100644
--- a/app/coffee/modules/backlog/main.coffee
+++ b/app/coffee/modules/backlog/main.coffee
@@ -79,7 +79,16 @@ class BacklogController extends mixOf(taiga.Controller, taiga.PageMixin)
             when "bulk" then @rootscope.$broadcast("usform:bulk")
 
 
+#############################################################################
+## Backlog Directive
+#############################################################################
+
 BacklogDirective = ($repo) ->
+
+    #########################
+    ## Drag & Drop Link
+    #########################
+
     linkSortable = ($scope, $el, $attrs, $ctrl) ->
         resortAndSave = ->
             toSave = []
@@ -144,12 +153,23 @@ BacklogDirective = ($repo) ->
             onRemove: onRemoveItem
         })
 
+    #########################
+    ## Filters Link
+    #########################
+
+    linkFilters = ($scope, $el, $attrs, $ctrl) ->
+        console.log "TODO"
+
     link = ($scope, $el, $attrs) ->
         $ctrl = $el.controller()
         linkSortable($scope, $el, $attrs, $ctrl)
+        linkFilters($scope, $el, $attrs, $ctrl)
 
     return {link: link}
 
+#############################################################################
+## Sprint Directive
+#############################################################################
 
 BacklogSprintDirective = ($repo) ->
     link = ($scope, $el, $attrs) ->
diff --git a/app/coffee/modules/base/filters.coffee b/app/coffee/modules/base/filters.coffee
new file mode 100644
index 00000000..8cb68479
--- /dev/null
+++ b/app/coffee/modules/base/filters.coffee
@@ -0,0 +1,32 @@
+###
+# Copyright (C) 2014 Andrey Antukh <niwi@niwi.be>
+# Copyright (C) 2014 Jesús Espino Garcia <jespinog@gmail.com>
+# Copyright (C) 2014 David Barragán Merino <bameda@dbarragan.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+# File: modules/base/filters.coffee
+###
+
+
+taiga = @.taiga
+
+class FiltersStorageService extends taiga.Service
+    @.$inject = ["$tgStorage", "$routeParams"]
+
+    constructor: (@storage, @params) ->
+
+    generateHash: (components=[]) ->
+        components = _.map(components, (x) -> JSON.stringify(x))
+        return hex_sha1(components.join(":"))