tap/app/models/order.rb
2014-12-10 13:21:06 +01:00

48 lines
1.1 KiB
Ruby

# == Schema Information
#
# Table name: orders
#
# id :integer not null, primary key
# user_id :integer
# cost :integer
# created_at :datetime not null
# updated_at :datetime not null
#
class Order < ActiveRecord::Base
after_initialize { self.total_price = 0 }
after_create :pay_price
belongs_to :user, counter_cache: true
has_many :order_products
has_many :products, { through: :order_products} do
def << (product)
if proxy_association.owner.products.include?(product)
proxy_association.owner.order_products.find_by(product: product).increment!(:count, 1)
else
super
end
end
end
attr_accessor :total_price
validates :user, presence: true
validates :order_products, presence: true
accepts_nested_attributes_for :order_products, reject_if: proc { |op| op[:count].to_i <= 0 }
def price
price = 0
order_products.each do |op|
price += op.count * op.product.read_attribute(:price)
end
price
end
private
def pay_price
user.pay(price)
end
end