Question

我想为Relationship模型创建一个工厂，它包含两个属性followed_id和follower_id，但我不知道如何做到这一点，这是我的工厂文件：

FactoryGirl.define do

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

  factory :relationship do
    # i need something like this
    # followed_id a_user.id
    # follower_id another_user.id
  end

end

更新

我想用这个关系工厂做的是测试如果我摧毁一个用户，他的所有关系也会被破坏，这是我的测试：

describe "relationships associations" do

let!(:relationship) { FactoryGirl.create(:relationship) }
it "should destroy associated relationships" do
  relationships = @user.relationships.to_a
  @user.destroy
  expect(relationships).not_to be_empty
  relationships.each do |relationship|
    expect(Relationships.where(id: relationship.id)).to be_empty
  end
end

端

Answer 1

使用association

  factory :relationship do |r| # 'r' is how you call relationship in the block
    ...
    r.association :followed #relationship is associated with followed user 
    #(i'm not sure how your application is set up, 
    #so you'll have to do this as best makes sense.  
    #is followed an attribute of user?  
    #then it would look like `r.association :user`
    f.association :follower #same here
  end

Answer 2

根据我的经验，这种“关系”工厂在测试中很少需要。相反，经常使用“user_with_followers”和“user_following_some_ones”。

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

  factory :user_with_followers do
    ignore do
      followers_count 5
    end

    after_create do |user, evaluator|
      followers = FactoryGirl.create_list(:user, evaluator.followers_count)
      followers.each do |follower|
        follower.follow(user) # Suppose you have a "follow()" method in User
      end
  end

  factory :user_following_some_ones do
    # Do the similar
  end
end

# Use
FactoryGirl.create :user_with_followers

Answer 3

在最近的FactoryGirl版本中，您应该可以这样做：

factory :relationship do
  association :followed, :factory => :user
  association :follower, :factory => :user
end

这两条association行中的每一行都设置了一个用户实例（使用:user工厂），然后分配给当前的followed或follower关系实例。

请注意，除非关联名称和工厂名称相同，否则您需要指定工厂。

<强>更新

创建关系时，请指定:followed或:follower（以适用者为准）。否则，它会为每个用户创建新的用户记录并使用它们。

FactoryGirl.create(:relationship, :followed => @user)

如何为两个用户之间的关系创建工厂

3 个答案: