class OrderSerializer < Qwaiter::Serializer
  embed :ids
  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