Order template for user

app/models/order.rb

 class Order < ApplicationRecord
   has_many :product_items, dependent: :destroy
   belongs_to :user
+  after_save :set_default_order_status
+  enum order_status: { pending: 0, done: 1 }
 
   def total_price
     product_items.to_a.sum { |item| item.product.price * item.quantity }
   end
+
+  def set_default_order_status
+    update_attribute(:order_status, 0)
+  end
 end
\ No newline at end of file

db/migrate/20170619091633_add_order_status_to_orders.rb

+class AddOrderStatusToOrders < ActiveRecord::Migration[5.1]
+  def change
+    add_column :orders, :order_status, :integer
+  end
+end

db/schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema.define(version: 20170615035827) do
+ActiveRecord::Schema.define(version: 20170619091633) do
 
   create_table "categories", force: :cascade, options: "ENGINE=InnoDB DEFAULT CHARSET=utf8" do |t|
     t.string "title"
@@ -21,6 +21,7 @@ ActiveRecord::Schema.define(version: 20170615035827) do
     t.bigint "user_id"
     t.datetime "created_at", null: false
     t.datetime "updated_at", null: false
+    t.integer "order_status"
     t.index ["user_id"], name: "index_orders_on_user_id"
   end