工廠女孩多態has_many，belongs_to

Question

class Food < ActiveRecord::Base 
has_many :images, as: :imageable, foreign_key: :imageable_uuid, dependent: :destroy 
end 

class MenuPhoto < ActiveRecord::Base 
has_one :image, as: :imageable, foreign_key: :imageable_uuid, dependent: :destroy 
end 

class Image < ActiveRecord::Base 
belongs_to :imageable, foreign_key: :imageable_uuid, :polymorphic => true 
end 

我有以上這些模型使用多態。所以在我的工廠女孩​​我這樣做。

factory :food do 
association :images, factory: :image 
end 

factory :menu_photo do 
association :image, factory: :image 
end 

factory :image do 
    photo { fixture_file_upload(Rails.root.join("spec", "fixtures", "pass.jpg"), "image/jpg") } 
    end 

，當我在軌測試控制檯環境測試 「FactoryGirl.create（：menu_photo）」，它工作正常。它創建了兩個：menu_photo和：image。 但是當我運行「FactoryGirl.create（：食品）」，它與錯誤： NoMethodError：未定義的方法`每個」爲＃

Answer 1

我認爲問題是，你要設置一個單一的形象has_many關聯。如果你這樣做：

factory :food do 

    after(:create) { |f| 
     f.images.create!() 
    } 

end