..

app/models/menu_item.rb

@@ -9,6 +9,9 @@ class MenuItem < ApplicationRecord
 
   default_scope { order('item_code asc') }
 
+  scope :simple_menu_item, -> { where(type: 'SimpleMenuItem') }
+  scope :set_menu_item, -> { where(type: 'SetMenuItem') } 
+
   def self.collection
     MenuItem.select("id, name").map { |e| [e.name, e.id] }
   end