FactoryGirl - can't write unknown attribute, and undefined method `name'

Rafael Adel

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Apr 29, 2015, 10:32:47 AM4/29/15

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I'm trying to create a `photo` factory that's in a many to one association with `gallery`. And I'm getting two errors, depending on how I specify the association between those two models.

Here's the models:

Photo

belongs_to :gallery, class_name: "SevenGallery::Gallery"

Gallery

has_many :photos, class_name: "SevenGallery::Photo", foreign_key: "seven_gallery_gallery_id", dependent: :destroy

And the migrations

create_table :seven_gallery_galleries do |t|
     t.string :title  
       t.timestamps null: false
    end
    
    create_table :seven_gallery_photos do |t|
       t.string :caption
       t.string :image
       t.references :seven_gallery_gallery, index: true
       t.timestamps null: false
     end


     add_foreign_key :seven_gallery_photos, :seven_gallery_galleries, on_delete: :cascade

Now Here's my factories:

**Gallery**:

FactoryGirl.define do
      factory :gallery, class: 'SevenGallery::Gallery' do
        title "an event gallery"
        factory :gallery_with_photos do 
       after(:build) do |gallery| 
        gallery.photos << FactoryGirl.create(:photo_one, seven_gallery_gallery_id: gallery)
        gallery.photos << FactoryGirl.create(:photo_two, seven_gallery_gallery_id: gallery)
        gallery.photos << FactoryGirl.create(:photo_three, seven_gallery_gallery_id: gallery)
       end
        end
      end
    end

And **Photo**:

FactoryGirl.define do
      factory :photo, class: "SevenGallery::Photo" do
         
     factory :photo_one do
     end
    
     factory :photo_two do
     end
    
     factory :photo_three do
     end
    
     factory :photo_with_gallery do
      gallery 
     end
      end
    end

And here's the controller spec that generates the error:

 it "changes is_main to true in self and false in rest" do
     photo_one = FactoryGirl.create(:photo_with_gallery)
     expect(photo_one.gallery).to be_a SevenGallery::Gallery
 end

Whenever I run the test I get this error:

Failure/Error: photo_one = FactoryGirl.create(:photo_with_gallery)
      ActiveModel::MissingAttributeError:
        can't write unknown attribute `gallery_id`
      # ./spec/controllers/seven_gallery/photos_controller_spec.rb:

When I change the association part to be:

factory :photo_with_gallery do
      association :gallery, factory: gallery 
    end

I get this error:

 Failure/Error: photo_one = FactoryGirl.create(:photo_with_gallery)
      NoMethodError:
         undefined method `name' for :photo_with_gallery:Symbol 
       # ./spec/controllers/seven_gallery/photos_controller_spec.rb:8

**Backtrace**:

 # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-4.2.1/lib/active_record/attribute.rb:138:in `with_value_from_database'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-4.2.1/lib/active_record/attribute_set.rb:39:in `write_from_user'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-4.2.1/lib/active_record/attribute_methods/write.rb:74:in `write_attribute_with_type_cast'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-4.2.1/lib/active_record/attribute_methods/write.rb:56:in `write_attribute'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-4.2.1/lib/active_record/attribute_methods/dirty.rb:96:in `write_attribute'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-4.2.1/lib/active_record/attribute_methods.rb:373:in `[]='
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-4.2.1/lib/active_record/associations/belongs_to_association.rb:83:in `replace_keys'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-4.2.1/lib/active_record/associations/belongs_to_association.rb:14:in `replace'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-4.2.1/lib/active_record/associations/singular_association.rb:17:in `writer'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activerecord-4.2.1/lib/active_record/associations/builder/association.rb:123:in `gallery='
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/factory_girl-4.5.0/lib/factory_girl/attribute_assigner.rb:16:in `public_send'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/factory_girl-4.5.0/lib/factory_girl/attribute_assigner.rb:16:in `block (2 levels) in object'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/factory_girl-4.5.0/lib/factory_girl/attribute_assigner.rb:15:in `each'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/factory_girl-4.5.0/lib/factory_girl/attribute_assigner.rb:15:in `block in object'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/factory_girl-4.5.0/lib/factory_girl/attribute_assigner.rb:14:in `tap'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/factory_girl-4.5.0/lib/factory_girl/attribute_assigner.rb:14:in `object'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/factory_girl-4.5.0/lib/factory_girl/evaluation.rb:12:in `object'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/factory_girl-4.5.0/lib/factory_girl/strategy/create.rb:9:in `result'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/factory_girl-4.5.0/lib/factory_girl/factory.rb:42:in `run'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/factory_girl-4.5.0/lib/factory_girl/factory_runner.rb:23:in `block in run'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/notifications.rb:166:in `instrument'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/factory_girl-4.5.0/lib/factory_girl/factory_runner.rb:22:in `run'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/factory_girl-4.5.0/lib/factory_girl/strategy_syntax_method_registrar.rb:20:in `block in define_singular_strategy_method'
         # ./spec/controllers/seven_gallery/photos_controller_spec.rb:8:in `block (3 levels) in <module:SevenGallery>'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:177:in `instance_exec'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:177:in `block in run'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:385:in `block in with_around_and_singleton_context_hooks'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:343:in `block in with_around_example_hooks'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/hooks.rb:474:in `block in run'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/hooks.rb:614:in `block in run_around_example_hooks_for'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:247:in `call'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:247:in `call'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-rails-3.2.1/lib/rspec/rails/example/controller_example_group.rb:179:in `block (2 levels) in <module:ControllerExampleGroup>'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:333:in `instance_exec'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:333:in `instance_exec'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/hooks.rb:387:in `execute_with'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/hooks.rb:616:in `block (2 levels) in run_around_example_hooks_for'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:247:in `call'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:247:in `call'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-rails-3.2.1/lib/rspec/rails/adapters.rb:113:in `block (2 levels) in <module:MinitestLifecycleAdapter>'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:333:in `instance_exec'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:333:in `instance_exec'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/hooks.rb:387:in `execute_with'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/hooks.rb:616:in `block (2 levels) in run_around_example_hooks_for'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:247:in `call'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:247:in `call'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/hooks.rb:617:in `run_around_example_hooks_for'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/hooks.rb:474:in `run'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:343:in `with_around_example_hooks'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:385:in `with_around_and_singleton_context_hooks'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example.rb:174:in `run'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example_group.rb:549:in `block in run_examples'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example_group.rb:545:in `map'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example_group.rb:545:in `run_examples'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example_group.rb:512:in `run'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example_group.rb:513:in `block in run'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example_group.rb:513:in `map'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/example_group.rb:513:in `run'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/runner.rb:110:in `block (3 levels) in run_specs'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/runner.rb:110:in `map'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/runner.rb:110:in `block (2 levels) in run_specs'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/configuration.rb:1526:in `with_suite_hooks'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/runner.rb:109:in `block in run_specs'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/reporter.rb:62:in `report'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/runner.rb:108:in `run_specs'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/runner.rb:86:in `run'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/runner.rb:70:in `run'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/lib/rspec/core/runner.rb:38:in `invoke'
         # /home/rafael/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0/gems/rspec-core-3.2.3/exe/rspec:4:in `<top (required)>'
         # /home/rafael/.rbenv/versions/2.2.0/bin/rspec:23:in `load'
         # /home/rafael/.rbenv/versions/2.2.0/bin/rspec:23:in `<main>'

Any help would ne appreciated. Thanks.

Chris Lerum

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Apr 29, 2015, 11:53:18 AM4/29/15

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https://github.com/chrislerum/factory

I tried whipping up an app with your code, the controller test passes fine for me, see if it works for you and compare.

...

Message has been deleted

Rafael Adel

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Apr 29, 2015, 1:59:04 PM4/29/15

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I can see the only difference is that in my case there's namespace in front of the table names and FK. But in yours there's none since it's a normal app.

But is this the cause ?

Message has been deleted

Chris Lerum

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Apr 29, 2015, 8:45:46 PM4/29/15

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In short, yes. See this lovely article; notice the conspicuous absence of any talk of changing table names:

http://blog.makandra.com/2014/12/organizing-large-rails-projects-with-namespaces/

Rafael Adel

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Apr 30, 2015, 4:09:55 AM4/30/15

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Are you sure about this ? If so, is there a way to make it working without changing table names ?

chris lerum

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Apr 30, 2015, 8:01:49 AM4/30/15

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you could try, in the model, self.table_name = "seven_gallery_photos" etc.

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Chris Lerum

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Apr 30, 2015, 8:59:45 AM4/30/15

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https://github.com/chrislerum/factory setting table_name seems to be the sweet spot, working now

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Rafael Adel

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Apr 30, 2015, 10:34:59 AM4/30/15

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This is really driving me insane. I've something very similar to your sample Here. I've specified table names inside models. But still the error occurs. Would you mind taking a look at it ? Thank you a lot so far for your time.

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