Question

I have a controller named BaseController that inherits from ApplicationController whitout a model associated but it has ping method that just respond with a message to inform that everything is OK.

I’m trying to call the action ping through the BaseController setting this in my routes.rb file:

namespace :api, defaults: { format: 'json' } do   
  match '/ping' => 'base#ping' 
end

But it always give me an NameError uninitialized constant Base. I suppose it’s trying to find a model called Base which doesn’t exist so, I don’t know how to set to the correct route to my controller.

The content of my BaseController is the following:

class Api::BaseController < ApplicationController
   load_and_authorize_resource
   respond_to :json

   def ping
      respond_with({ :status => 'OK' })
   end
end

As extra information: BaseController is just a parent controller for other controllers to inherit. The others are resourceful controllers and have models associated

Thanks.

Answer 1

When you put a namespace around a route, it will look for the controller within that namespace.

So in you case, it will be looking for a controller called Api::BaseController, which normally would be stored in app/controllers/api/base_controller.rb. Is this how your controller is set up?

See here for more details: http://guides.rubyonrails.org/routing.html#controller-namespaces-and-routing

EDIT:

I don’t think its not finding the controller that’s the problem. The error is being caused because you are calling load_and_authorize_resource in the controller. CanCan uses the controller name to attempt to load the resource.

If there is no model for the controller, make the call authorize_resource :class => false.

See the bottom of this page for more details.