Merge branch 'august_spring' of bitbucket.org:code2lab/sxrestaurant

app/models/promotion.rb

@@ -3,7 +3,7 @@ class Promotion < ApplicationRecord
 
   has_many :promotion_products
 
-  accepts_nested_attributes_for :promotion_products , :allow_destroy => true
+  accepts_nested_attributes_for :promotion_products , :allow_destroy => true , update_only: true
 
   PROMO_TYPE1 = "Quantity"
   PROMO_TYPE2 = "Net_off" # 3000 => - 500  => 2500 [total]
@@ -204,6 +204,6 @@ class Promotion < ApplicationRecord
  end
 
  def self.calculate_discount(total, discount)
-    self (total.to_i * discount.to_i) / 100
+    return (total.to_i * discount.to_i) / 100
  end
 end

app/models/promotion_product.rb

@@ -1,3 +1,4 @@
 class PromotionProduct < ApplicationRecord
+  validates_presence_of  :item_code
   belongs_to :promotion
 end