factory_girl的has_many：通過與驗證

Question

我有以下型號：我得到驗證錯誤「活動不能爲空」活動工廠：

class Activity < ActiveRecord::Base 
    has_many :clientships, :dependent => :destroy 
    has_many :clients, :through => :clientships 
end 

class Clientship < ActiveRecord::Base 
    belongs_to :client 
    belongs_to :activity 

    validates_presence_of :client_id 
    validates_presence_of :activity_id, :unless => :new_record? 
end 

class Client < ActiveRecord::Base 
    has_many :clientships 
    has_many :activities, :through => :clientships 
end 

我不能創建一個。

我的工廠是這樣的：

Factory.define :activity do |a| 
    a.association :staff, :factory => :user 
    a.clientships { |cs| [cs.association :clientship] } 
end 

Factory.define :clientship do |cs| 
    cs.association(:client) 
end 

Factory.define :client do |c| 
    c.first_name {Factory.next(:name)} 
    c.last_name {Factory.next(:name)} 
end 

我得到的錯誤，當我在我的規格運行這個廠： @activity = Factory(:activity)

請幫助！

Answer 1

我總是做這樣的情況是這樣的：

Factory.define :activity do |a| 
    #whatever attributes 
end 

Factory.define :clientship do |cs| 
    cs.association(:client) 
    cs.association(:activity) 
end 

Factory.define :client do |c| 
    c.first_name {Factory.next(:name)} 
    c.last_name {Factory.next(:name)} 
end 

所以，在我的測試/規格我用

Factory :clientship 

也許是不那麼幹淨，但更有道理到我......但我不確定從連接表創建這樣的關係是一個好主意。

而且，一般來說，我更願意在belongs_to這一方的工廠裏創建協會，因爲最終它對我來說不會造成問題。