如何調用rails 4控制器中的謂詞方法？

我的新軌道，並想獲得rspec的下列位通過，將使打電話來標誌一個路徑的過程爲隱藏：如何調用rails 4控制器中的謂詞方法？

describe 'PATCH hide_course' do 
    before :each do 
     @course = create(:course) 
    end 

    it 'marks the course as hidden' do 
     patch :hide_course, id: @course 
     expect(@course.reload.hidden?).to be_true 
    end 

    it 'redirects to courses#index' do 
     patch :hide_course, id: @course 
     expect(response).to redirect_to course_url 
    end 
end

我然後設置以下的路徑，沒有任何問題：

resources :courses 
put '/courses/:id/hide_course', to: 'courses#hide_course'

我的問題是在設置控制器操作。下面是我在CoursesController寫道位：然後

def hide_course 
    @course = Course.find(params[:id]) 
    @course.hide 
end 

private 

def course_params 
    params.require(:course).permit(:name,:description,:department,:hidden, 
     :lecture_attributes => [:name,:description,:level]) 
end

我的模型看起來是這樣的：

def hide 
    update!(:hidden => true) 
end

什麼對我來說是成立於軌道4,5這種方法的最佳方法是什麼？即使它存在於我的模式中，我仍然收到有關隱藏屬性不存在的錯誤。謝謝！

PS-我得到的第一個規範的回溯是這樣的：

1) CoursesController PATCH hide_course marks the course as hidden 
    Failure/Error: patch :hide_course, id: @course 
    ActiveRecord::UnknownAttributeError: 
     unknown attribute: hidden 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activerecord-4.2.0.beta2/lib/active_record/attribute_assignment.rb:59:in `rescue in _assign_attribute' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activerecord-4.2.0.beta2/lib/active_record/attribute_assignment.rb:54:in `_assign_attribute' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activerecord-4.2.0.beta2/lib/active_record/attribute_assignment.rb:41:in `block in assign_attributes' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activerecord-4.2.0.beta2/lib/active_record/attribute_assignment.rb:35:in `each' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activerecord-4.2.0.beta2/lib/active_record/attribute_assignment.rb:35:in `assign_attributes' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activerecord-4.2.0.beta2/lib/active_record/persistence.rb:262:in `block in update!' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activerecord-4.2.0.beta2/lib/active_record/transactions.rb:345:in `block in with_transaction_returning_status' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activerecord-4.2.0.beta2/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `block in transaction' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activerecord-4.2.0.beta2/lib/active_record/connection_adapters/abstract/transaction.rb:188:in `within_new_transaction' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activerecord-4.2.0.beta2/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `transaction' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activerecord-4.2.0.beta2/lib/active_record/transactions.rb:218:in `transaction' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activerecord-4.2.0.beta2/lib/active_record/transactions.rb:342:in `with_transaction_returning_status' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activerecord-4.2.0.beta2/lib/active_record/persistence.rb:261:in `update!' 
    # ./app/models/course.rb:13:in `hide' 
    # ./app/controllers/courses_controller.rb:60:in `hide_course' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/actionpack-4.2.0.beta2/lib/action_controller/metal/implicit_render.rb:4:in `send_action' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/actionpack-4.2.0.beta2/lib/abstract_controller/base.rb:198:in `process_action' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/actionpack-4.2.0.beta2/lib/action_controller/metal/rendering.rb:10:in `process_action' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/actionpack-4.2.0.beta2/lib/abstract_controller/callbacks.rb:20:in `block in process_action' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/callbacks.rb:114:in `call' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/callbacks.rb:114:in `call' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/callbacks.rb:231:in `block in halting' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/callbacks.rb:231:in `call' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/callbacks.rb:231:in `block in halting' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/callbacks.rb:166:in `call' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/callbacks.rb:166:in `block in halting' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/callbacks.rb:166:in `call' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/callbacks.rb:166:in `block in halting' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/callbacks.rb:231:in `call' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/callbacks.rb:231:in `block in halting' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/callbacks.rb:166:in `call' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/callbacks.rb:166:in `block in halting' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/callbacks.rb:87:in `call' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/callbacks.rb:87:in `run_callbacks' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/actionpack-4.2.0.beta2/lib/abstract_controller/callbacks.rb:19:in `process_action' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/actionpack-4.2.0.beta2/lib/action_controller/metal/rescue.rb:29:in `process_action' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/actionpack-4.2.0.beta2/lib/action_controller/metal/instrumentation.rb:31:in `block in process_action' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/notifications.rb:164:in `block in instrument' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/notifications/instrumenter.rb:20:in `instrument' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activesupport-4.2.0.beta2/lib/active_support/notifications.rb:164:in `instrument' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/actionpack-4.2.0.beta2/lib/action_controller/metal/instrumentation.rb:30:in `process_action' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/actionpack-4.2.0.beta2/lib/action_controller/metal/params_wrapper.rb:250:in `process_action' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/activerecord-4.2.0.beta2/lib/active_record/railties/controller_runtime.rb:18:in `process_action' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/actionpack-4.2.0.beta2/lib/abstract_controller/base.rb:137:in `process' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/actionview-4.2.0.beta2/lib/action_view/rendering.rb:30:in `process' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/actionpack-4.2.0.beta2/lib/action_controller/test_case.rb:628:in `process' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/actionpack-4.2.0.beta2/lib/action_controller/test_case.rb:64:in `process' 
    # /Users/sjensen/.rvm/gems/ruby-2.1.2/gems/actionpack-4.2.0.beta2/lib/action_controller/test_case.rb:516:in `patch' 
    # ./spec/controllers/courses_controller_spec.rb:171:in `block (3 levels) in <top (required)>'

來源

2014-12-06 Coherent

爲什麼在您的屬性中隱藏？？標記。我可以看到你的屬性名稱是'hidden'。 – 2014-12-06 18:20:29

好問題，我在書中的例子：Rayspec每日Rails測試。它似乎給我未知的屬性錯誤，即使當我刪除？ – Coherent 2014-12-06 18:24:20

flag /布爾屬性中的'？'是一個約定來表示該屬性是一個標誌，並給''if's和''除非' – rafb3 2014-12-06 21:24:14

確保您的測試數據庫設置正確。嘗試運行rake db:test:prepare

來源

2014-12-06 21:27:43 rafb3

我正在運行rails 4.2，它自動管理測試數據庫，我相信（至少那是我運行該命令時得到的警告）。我一直在使用rspec來編寫通常的模型規範，在這個項目中沒有問題，所以我認爲測試數據庫沒問題。謝謝！ – Coherent 2014-12-07 18:12:33

如何調用rails 4控制器中的謂詞方法？

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