Qwaiter supplier on Ember 1.0

app/serializers/order_serializer.rb

@@ -1,4 +1,14 @@
 class OrderSerializer < Qwaiter::Serializer
   embed :ids
-  attributes :state, :list_id, :section_id
+  attributes :state, :list_id, :section_id, :product_orders, :price
+
+  def product_orders
+    @product_orders ||= object.product_orders.include_relation(:product) .map do |product_order|
+      {product_name: product_order.product.name, id: product_order.id, quantity: product_order.quantity, price: product_order.price}
+    end
+  end
+
+  def price
+    product_orders.inject(0){|sum, po| sum + po[:quantity] * po[:price]}.round(2)
+  end
 end