工廠女孩的額外參數

Question

我需要傳遞額外的參數給工廠女孩用於回調。像這樣的東西（但更復雜的真正）：

Factory.define :blog do |blog| 
    blog.name "Blah" 

    blog.after_create do |blog| 
    blog.posts += sample_posts 
    blog.save! 
    end 
end 

，然後用像這樣創建：

Factory.create(:blog, :sample_posts => [post1, post2]) 

任何想法怎麼辦呢？

Answer 1

這是現在可能沒有任何 「黑客」 由於臨時屬性（see comment on issue #49）

例如：

FactoryGirl.define do 
    factory :user do 
    transient do 
     bar_extension false 
    end 
    name {"foo #{' bar' if bar_extension}"} 
    end 
end 

# Factory(:user).name = "foo" 
# Factory(:user, :bar_extension => true).name = "foo bar" 

對於工廠女孩版本< 5.0：

FactoryGirl.define do 
    factory :user do 
    ignore do 
     bar_extension false 
    end 
    name {"foo #{' bar' if bar_extension}"} 
    end 
end 

# Factory(:user).name = "foo" 
# Factory(:user, :bar_extension => true).name = "foo bar" 

Answer 2

一種選擇是創建額外的帖子虛擬訪問了after_create鉤檢查：

class Blog 
    has_many :posts 
    attr_accessible :name, :title, ... # DB columns 
    attr_accessor :sample_posts  # virtual column 
end 

Factory.define :blog do |blog| 
    blog.name 'Blah' 

    blog.after_create do |b| 
    b.posts += b.sample_posts 
    b.save! 
    end 
end 

Factory(:blog, :sample_posts => [post1, post2]) 

Answer 3

另一種選擇是使用build代替create並添加:autosave到集合：

class Blog 
    has_many :posts, :autosave => true 
end 

Factory.define :blog do |blog| 
    blog.name 'Blah' 
    blog.posts { |_| [Factory.build(:post)] } 
end 

Factory(:blog, :posts => [post1, post2]) 
#or 
Factory.build(:blog, :posts => [unsavedPost1, unsavedPost2]) 

Answer 4

顯然，目前這是不可能的，沒有需要修改模型本身的解決方法。此錯誤報告：http://github.com/thoughtbot/factory_girl/issues#issue/49

Answer 5

如果你打開factorygirl文件裏面的類，我建議這樣做，就像

require "user" 
class User 
    attr :post_count 
end 

讓你打開類，而不是覆蓋它