Cancan redirect back at AccessDenied

rubyonrails-talk
1

Hello

I have a rails 3 app and I am trying to implement the redirect back action at access denied for cancan.

If I try this in my application_controller:   rescue_from CanCan::AccessDenied do |exception|   redirect_to :back   end

It gives the following error: No HTTP_REFERER was set in the request to this action, so redirect_to :back could not be called successfully. If this is a test, make sure to specify request.env["HTTP_REFERER"].

I can't really understand why there is no http_referer, how is back button working on views? Is it possible to implement a general back action for the cancan access denied exception?

I like the devise approach of "back" method after sign in: def after_sign_in_path_for(resource) stored_location_for(resource) end

It would be perfect if I could combine them.

Thank you!

2

If your request does not have the HTTP_REFERER defined, redirect_to :back does not know where to redirect. Ususally in this case root_url is used. I hope, it will not be too difficult for you to combine