update menu_sync

app/models/menu_item_attribute.rb

@@ -1,6 +1,6 @@
 class MenuItemAttribute < ApplicationRecord
   validates_presence_of :attribute_type, :name, :value
   def self.collection
-    MenuItemAttribute.select("id, name").map { |e| [e.name, e.id] }
+    MenuItemAttribute.select("name, value").map { |e| [e.name, e.value] }
   end
 end

app/models/menu_item_instance.rb

@@ -1,5 +1,8 @@
 class MenuItemInstance < ApplicationRecord
   belongs_to :menu_item
+
+  has_many :menu_instance_item_sets
+  has_many :item_sets, through: :menu_instance_item_sets
   # before_create :generate_menu_item_instance_code
 
   def self.findParentCategory(item)