Compliance with user restrictions? the method was never called

I tried to restrict some routing to Ajax only, and write routes.rb

and lib/constraints/only_ajax_request.rb

like below.

routes.rb

resources :orders, except: [:destroy] do
  collection do
    post 'login_or_sign_up', to: 'orders#login_or_sign_up', constraints: OnlyAjaxRequest.new
  end
end

      

        
        
        
      

    

Library / restrictions / only_ajax_request.rb

class OnlyAjaxRequest
  def matches?(request)
    request.xhr?
  end
end

      

        
        
        
      

    

but this specification failed.

specs / controllers / orders_controllers_spec.rb

  describe 'POST #login_or_sign_up' do
    let(:user) { create(:login_user) }

    it 'only ajax' do
      post :login_or_sign_up, user: { email: user.email,
                                      password: user.password }
      expect(response.status).to eq(404)
    end
  end

      

        
        
        
      

    

I have set a breakpoint in OnlyAjaxRequest,

Class OnlyAjaxRequest
  def matches?(request)
    binding.pry
    request.xhr?
  end
end

      

        
        
        
      

    

but it was never called.

how to set restrictions for mail routing?