Question

我有模型order.rb

class Order < ActiveRecord::Base
    belongs_to :customer

    has_many :products, dependent: :destroy, class_name: 'OrderProduct'
    has_many :attributes, dependent: :destroy, class_name: 'OrderAttribute'
    has_one :invoice_address, class_name: 'OrderAddress'
    has_one :delivery_address, class_name: 'OrderAddress'

    validates :number, presence: true
    validates :total_amount, presence: true
end

当我运行rspec时，我收到错误

undefined method `keys' for #<ActiveRecord::Associations::CollectionProxy []>

保存订单时在线。当我发表评论时

    has_many :attributes, dependent: :destroy, class_name: 'OrderAttribute'

它按预期工作。我的rspec文件是：

require "spec_helper"

describe Order do
  before { @order = Order.new(:number => '132', :total_amount => 123, :paid_amount => 123) }

  it { assert_equal true, @order.valid? }

  describe "number cannot be empty" do
    before { @order.number = nil }
    it { assert_equal false, @order.valid? }
  end

  describe "total_amount cannot be nil" do
    before { @order.total_amount = nil }
    it { assert_equal false, @order.valid? }
  end

  describe "can add products" do
    before do
      @order.save
      @order.products.create(:name => 'test', :price => 123, :qty => 1)
    end

    it { assert_equal 1, @order.products.count }
  end

  # describe "can add attribute" do
  #   before do
  #     @order.save
  #     @order.attributes.create(:key => 'some_key', :value => '12')
  #   end

  #   it { assert_equal 1, @order.attributes.count }
  #   it { assert_equal 'some_key', @order.attributes.first.key }
  #   it { assert_equal '12', @order.attributes.first.value }
  # end
end

我注释掉了订单属性的测试，因为它产生了另一个错误。怎么解决？我有

的order_comment.rb文件

class OrderAttribute < ActiveRecord::Base
    belongs_to :order
end

它有什么问题？

Answer 1

将attributes重命名为导致问题的原因

如果你有一个has_many被叫属性，你就无法访问你的对象属性了;只有关联的对象Original Rails 维基 - 附加词语

未定义的方法`键＆＃39; for＃<activerecord :: associations :: collectionproxy [] =“”> </activerecord :: associations :: collectionproxy>

1 个答案: