Delete Fix for parent child process in Menu

app/models/menu_category.rb

@@ -8,5 +8,29 @@ class MenuCategory < ApplicationRecord
 
   default_scope { order('order_by asc') }
 
+  def self.destroyCategory(menu_category)
+  	# find the sub menu item of current item
+    sub_menu_cat = MenuCategory.where("menu_category_id=?",menu_category.id)
+    if sub_menu_cat.length != 0
+      sub_menu_cat.each do |sub|    
+        if destroyCategory(sub)
+        end
+      end
+      # find the items of current menu item
+      items = MenuItem.where("menu_category_id=?",menu_category.id)
+      items.each do |item|
+        abc = MenuItem.deleteRecursive(item)
+      end 
+      menu_category.destroy
+      return true
+    else
+      items = MenuItem.where("menu_category_id=?",menu_category.id)
+      items.each do |item|
+        abc = MenuItem.deleteRecursive(item)
+      end 
+      menu_category.destroy
+      return false
+    end
+  end
 
 end