Rendering from a filter class

rubyonrails-talk
1

I'm defining an around filter as its own class. The documentation on ActionController::Filters::ClassMethods includes this example:

  class Authorizer     # This will run before the action. Redirecting aborts the action.     def before(controller)       unless user.authorized?         redirect_to(login_url)       end     end

    # This will run after the action if and only if before did not render or redirect.     def after(controller)     end   end

It also includes the explanatory text, "If before renders or redirects, the filter chain is halted and after will not be run" implying that these filters can render. What I'm not clear on is how.

In my class, calls to render result in a no such method error. I tried calling controller.render, and it turns out that's protected. I can get around this using send, but I doubt that's actually the right way. Does anyone happen to know what the right way is?

2

The tests for this feature and the implementation of around_filters use controller.__send__, so you'll likely need the same. The documentation appears to be incorrect...

--Matt Jones