1
我的用户friendly_id。我在cart.rb模型说得到一个错误.. Couldn't find Product with 'id'=the-pen
Rails的:ActiveRecord的:: RecordNotFound在车所有项目
我不知该怎么办。任何帮助,将不胜感激
cart.rb
class CartItem < ActiveRecord::Base
attr_reader :product_id, :quantity
def initialize product_id, quantity = 1
@product_id = product_id
@quantity = quantity
end
def increment
@quantity = @quantity + 1
end
def product
Product.find product_id
end
def total_price
product.price * quantity
end
end
ApplicationController.rb
def initialize_cart
@cart = Cart.build_from_hash session
end
OrderForm.rb
def build_order_items
@cart.items.each do |item|
@order.order_items.create! product_id: item.product_id, quantity: item.quantity
end
什么是'Cart.build_from_hash session'在这里做?什么是“推车”实施?你在哪条线上遇到你提到的错误? – Surya
它从OrderForm模型,我会加入到问题 – JamesRocky