Edition of page part for multiple languages.

app/models/page_part.rb

@@ -6,7 +6,24 @@ class PagePart
   field :name
   field :content
   field :kind
+  field :i18n_variable_id, :type => BSON::ObjectId
 
   belongs_to :page
+  
+  # Get the i18n_variable
+  def i18n_variable
+    @i18n_variable ||= I18nVariable.find(self.i18n_variable_id) rescue nil
+  end
+  
+  # Update or create the i18n_variable record
+  def i18n_variable=(attr)
+    if self.i18n_variable_id
+      self.i18n_variable.update_attributes(attr)
+    else
+      var = I18nVariable.new(attr.merge({:key => self.key, :document_class => self.class, :parent_id => self.page.i18n_variable_id}))
+      var.save
+      self.i18n_variable_id = var.id
+    end
+  end
 
 end