Create part and save pages when layout is edited

app/models/page.rb

@@ -27,6 +27,11 @@ class Page < Item
   before_save :create_parts, if: Proc.new { |page| page.new_record? || page.design_id_changed? }
   before_save :delete_empty_frontend_field, :generate_html
 
+  def generate_parts
+    create_parts
+    self.save
+  end
+
   protected
   
   def create_parts