Why I cannot rescue_from with my custom method?

[Panayotis Matsinopoulos]

Hi,

I am using devise and in my routes I have

authenticated :user do

....

end

So, some of my pages require authentication before being available to the user.

When being on development environment and I am trying to access a page that needs authenticated user, the application throws an exception:

ActionController::RoutingError (No route matches [GET] "/courses/8/preview"):

.....

I suppose that this one is thrown by devise gem code. Correct?

Then I am trying to rescue_from this error with my own custom method on ApplicationController. Like this:

rescue_from ActionController::RoutingError, ActiveRecord::RecordNotFound, :with => :custom_404

But my method is never called and I still get the ActionController::RoutingError.

What am I missing here?

Thanks in advance

Panayotis

[Long Tran]

It seems rescue_from isn't working anymore in Rails 3.0.1+

Here's a proposed solution:

https://gist.github.com/Sujimichi/2349565

[Long Tran]

So mainly, we'll need to add a catch-all route:

#make this your last route.
match '*unmatched_route', :to => 'application#raise_not_found!'

And raise RoutingError:

#called by last route matching unmatched routes.  Raises RoutingError which will be rescued from in the same way as other exceptions.
def raise_not_found!
  raise ActionController::RoutingError.new("No route matches #{params[:unmatched_route]}")
end

[Panayotis Matsinopoulos]

Thanks this approach seems to be working.