ruby-on-rails - 产品型号为 : Rspec tell me that "Trait not registered" 的 FactoryGirl

Question

嗨魔法社区!

对于那些有时间的人来说，仍然是一个新手，有一些基本问题;-)

我像这样创建了一个用户模型和一个产品模型(感谢@grotori):

class User
  has_many :owned_products, class_name: "Product", foreign_key: "owner_id"
  has_many :borrowed_products, class_name: "Product", foreign_key: "borrower_id"
end

class Product
    belongs_to :owner, class_name: "User", foreign_key: "owner_id"
    belongs_to :borrower, class_name: "User", foreign_key: "borrower_id"
end

然后我使用 FactoryGirl 创建了一个 factories.rb，如下所示:

FactoryGirl.define do

  factory :user do
    sequence(:name) { |n| "Person #{n}" }
    sequence(:email) { |n| "Person_#{n}@example.com" }
    password "kaboum"
    password_confirmation "kaboum"
  end

  factory :product do
    name "Product"
    owner
    borrower
  end
end

为了像这样测试 dependent::destroy 条件:

describe User do

  before do
    @user = User.new(name: "Example User",
                        email: "user@example.com",
                        password: "kaboum",
                        password_confirmation: "kaboum")
  end

  describe "product associations" do
    before { @user.save }
    let!(:product) { FactoryGirl.create(:product, owner: @user) }

    it "should destroy associated product" do
      product_to_be_destroyed = @user.owned_products.first
      @user.destroy
      expect(product_to_be_destroyed).not_to be_empty
      expect(Product.where(id: product_to_be_destroyed.id)).to be_empty
    end
  end
end

Rspec 给我答案 ArgumentError: Trait not registered: owner。

我搜索了 already answered questions在 stackoverflow 上，但我无法解决我的问题。一种解决方案是为我的 factories.rb 中的“所有者”或“借款人”字段分配一个默认值，但我不希望这样，这根据 FactoryGirl help 是可能的。 .

我们将不胜感激:-)

Answer 1

我相信这可以在不创建额外的所有者和借用者工厂的情况下解决:

  factory :product do
    name "Product"
    association :owner, factory: :user
    association :borrower, factory: user
  end