DB for promtion, promotion product,product

db/migrate/20170815044557_create_promotion.rb

@@ -0,0 +1,18 @@
+class CreatePromotion < ActiveRecord::Migration[5.1]
+  def change
+    create_table :promotions do |t|
+      t.string :promo_code, :limit => 16
+
+      t.datetime :promo_start_date, :null => false
+      t.datetime :promo_end_date, :null => false
+      t.time :promo_start_hour, :null => false
+      t.time :promo_end_hour, :null => false
+      t.string :promo_day, :null => false, :default => "[0,1,2,3,4,5,6]"
+      t.string :promo_type, :null => false, :default => "Quantity"
+      t.string :original_product
+      t.integer :min_qty
+      t.string  :created_by, :null => false
+      t.timestamps
+    end
+  end
+end