menu, table,rooms, orders structure

app/models/customer.rb

@@ -0,0 +1,9 @@
+class Customer < ApplicationRecord
+  has_many :orders
+  has_many :sales
+
+  validates_presence_of :name, :contact_no
+  validates :contact_no, uniqueness: true
+
+
+end

app/models/dining_facility.rb

@@ -0,0 +1,2 @@
+class DiningFacility < ApplicationRecord
+end

app/models/dining_in.rb

@@ -0,0 +1,4 @@
+class DiningIn < ApplicationRecord
+  belongs_to :table
+  belongs_to :order
+end

app/models/menu_category.rb

@@ -1,5 +1,10 @@
 class MenuCategory < ApplicationRecord
   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
+
 
   validates_presence_of :name
+
+
 end

app/models/menu_item.rb

@@ -0,0 +1,7 @@
+class MenuItem < ApplicationRecord
+  belongs_to :menu_category
+  has_many :menu_item_instances
+  belongs_to :parent, :class_name => "MenuItem", foreign_key: "menu_item_id"
+  has_many :children, :class_name => "MenuItem", foreign_key: "menu_item_id"
+
+end

app/models/menu_item_attribute.rb

@@ -0,0 +1,4 @@
+class MenuItemAttribute < ApplicationRecord
+  validates_presence_of :attribute_type, :name, :value
+  
+end

app/models/menu_item_instance.rb

@@ -0,0 +1,4 @@
+class MenuItemInstance < ApplicationRecord
+  belongs_to :menu_item
+  
+end

app/models/menu_item_option.rb

@@ -0,0 +1,4 @@
+class MenuItemOption < ApplicationRecord
+  validates_presence_of  :name, :value
+
+end

app/models/order.rb

@@ -0,0 +1,12 @@
+class Order < ApplicationRecord
+  before_create :set_order_date
+  belongs_to :customer
+  has_many :order_items, inverse_of: :order
+  has_many :dining_ins
+
+
+  private
+  def set_order_date
+    self.date = Time.now.utc
+  end
+end

app/models/order_item.rb

@@ -0,0 +1,10 @@
+class OrderItem < ApplicationRecord
+  #Associations
+  belongs_to :order
+
+  #Validation
+  validates_presence_of :item_code, :item_name, :qty
+  validates :qty, numericality: { :greater_than 0 }
+  validates_associated :orders
+
+end

app/models/room.rb

@@ -1,6 +1,3 @@
-class Room < ApplicationRecord
-  belongs_to :zone
-
-  validates_presence_of :name,:seater, :order_by, :created_by, :is_active
+class Room < DiningFacility
 
 end

app/models/room_booking.rb

@@ -0,0 +1,2 @@
+class RoomBooking < ApplicationRecord
+end

app/models/room_order.rb

@@ -0,0 +1,4 @@
+class RoomOrder < ApplicationRecord
+  belongs_to :room
+  belongs_to :orders
+end

app/models/seat_table.rb

@@ -1,6 +0,0 @@
-class SeatTable < ApplicationRecord
-  belongs_to :zone
-
-  # validations
-  validates_presence_of :name,:order_by, :created_by
-end

app/models/set_menu_item.rb

@@ -0,0 +1,3 @@
+class SetMenuItem < MenuItem
+
+end

app/models/simple_menu_item.rb

@@ -0,0 +1,3 @@
+class SimpleMenuItem < MenuItem
+
+end

app/models/table.rb

@@ -0,0 +1,4 @@
+class Table < DiningFacility
+  has_many :dining_ins
+  
+end

app/models/zone.rb

@@ -1,6 +1,6 @@
 class Zone < ApplicationRecord
   # model association
- has_many :seat_tables, dependent: :destroy
+ has_many :tables, dependent: :destroy
  has_many :rooms, dependent: :destroy
 
  # validations