Change assets

app/models/asset.rb

@@ -9,5 +9,8 @@ class Asset
   field :description
   
   validates_presence_of :filename, :data
+
+  belongs_to :asset_category
+  belongs_to :assetable, polymorphic: true
   
 end

app/models/asset_category.rb

@@ -0,0 +1,16 @@
+class AssetCategory
+  include Mongoid::Document
+  include Mongoid::Timestamps
+
+  field :key
+  field :display
+  
+  has_one :i18n_variable, :as => :language_value, :autosave => true, :dependent => :destroy
+  
+  has_many :assets
+  
+  def self.from_id(id)
+    AssetCategory.find(id) rescue nil
+  end
+  
+end