ruby-on-rails - 如何覆盖 factory_girl 中的委托(delegate)属性？

Question

我有一个属性委托(delegate)给关联对象 (AR/Postgres)，并试图在调用工厂时覆盖它。

class Patient
    delegate :email, to: :credential
    has_one :credential, as: :owner,  dependent: :destroy
end

class Credential
    belongs_to :owner, polymorphic: true
end

FactoryGirl.define do
  factory :patient do
    first_name 'Jane'
    last_name 'Patient'
    dob Date.parse('2005-01-11')
    gender 'Female'
    zipcode '80202'

    after(:build) do |user|
      create(:credential, owner: user)
    end
  end
end

FactoryGirl.define do
  factory :credential do
    password '!Secret15'
    password_confirmation { password }
    agree_to_terms true

    sequence :email do |n|
     "user#{n}@bar.com"
    end
  end
end

调用:

create(:patient, email: 'new@email.com')

它根本不起作用，属性正在按默认顺序设置。

搜索了他们的文档和谷歌，但找不到答案。非常感谢任何帮助。

Answer 1

factory_girl 不对 delegate 做任何事情。您需要自己将 email 传递给 :credential 工厂。属性在回调中不可用，因此从评估器获取 email，这是回调 block 的第二个参数:

FactoryGirl.define do
  factory :patient do
    # other attributes

    after(:build) do |user, evaluator|
      create(:credential, owner: user, email: evaluator.email)
    end
  end
end

记录在此处:https://github.com/thoughtbot/factory_girl/blob/master/GETTING_STARTED.md#transient-attributes