added menu osaka

app/models/menu_category.rb

@@ -1,4 +1,7 @@
 class MenuCategory < ApplicationRecord
+  
+  before_create :generate_menu_category_code
+
   belongs_to :menu
   has_many :children, :class_name => "MenuCategory", foreign_key: "menu_category_id"
   belongs_to :parent, :class_name => "MenuCategory", foreign_key: "menu_category_id", optional: true
@@ -12,7 +15,7 @@ class MenuCategory < ApplicationRecord
   	# 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|    
+      sub_menu_cat.each do |sub|
         if destroyCategory(sub)
         end
       end
@@ -20,17 +23,22 @@ class MenuCategory < ApplicationRecord
       items = MenuItem.where("menu_category_id=?",menu_category.id)
       items.each do |item|
         abc = MenuItem.deleteRecursive(item)
-      end 
+      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 
+      end
       menu_category.destroy
       return false
     end
   end
 
+  private
+
+  def generate_menu_category_code
+    self.code = SeedGenerator.generate_id(self.class.name, "C")
+  end
 end

app/models/menu_item.rb

@@ -1,5 +1,7 @@
 class MenuItem < ApplicationRecord
 
+  before_create :generate_menu_item_code
+
   belongs_to :menu_category, :optional => true
   has_many :menu_item_instances
   belongs_to :parent, :class_name => "MenuItem", foreign_key: "menu_item_id", :optional => true
@@ -11,7 +13,7 @@ class MenuItem < ApplicationRecord
   default_scope { order('item_code asc') }
 
   scope :simple_menu_item, -> { where(type: 'SimpleMenuItem') }
-  scope :set_menu_item, -> { where(type: 'SetMenuItem') } 
+  scope :set_menu_item, -> { where(type: 'SetMenuItem') }
 
   def self.collection
     MenuItem.select("id, name").map { |e| [e.name, e.id] }
@@ -46,7 +48,7 @@ class MenuItem < ApplicationRecord
     # find the sub menu item of current item
     sub_menu_items = MenuItem.where("menu_item_id=?",menu_item.id)
     if sub_menu_items.length != 0
-      sub_menu_items.each do |subitem|    
+      sub_menu_items.each do |subitem|
         if deleteRecursive(subitem)
         end
       end
@@ -54,17 +56,24 @@ class MenuItem < ApplicationRecord
       instances = MenuItemInstance.where("menu_item_id=?",menu_item.id)
       instances.each do |instance|
         instance.destroy
-      end 
+      end
       menu_item.destroy
       return true
     else
       instances = MenuItemInstance.where("menu_item_id=?",menu_item.id)
       instances.each do |instance|
         instance.destroy
-      end 
+      end
       menu_item.destroy
       return false
     end
 
-  end 
+  end
+
+  private
+
+  def generate_menu_item_code
+    self.item_code = SeedGenerator.generate_id(self.class.name, "I")
+  end
+
 end

app/models/menu_item_instance.rb

@@ -1,6 +1,7 @@
 class MenuItemInstance < ApplicationRecord
   belongs_to :menu_item
-  
+  before_create :generate_menu_item_instance_code
+
   def self.findParentCategory(item)
   	if item.menu_category_id
       return item.menu_category_id
@@ -9,4 +10,10 @@ class MenuItemInstance < ApplicationRecord
       findParentCategory(parentitem)
     end
   end
+
+  private
+
+  def generate_menu_item_instance_code
+    self.item_instance_code = SeedGenerator.generate_id(self.class.name, "II")
+  end
 end