How do I catch an ActionController Error?

#1

I can’t figure out how to have an ActionController catch it’s own
exceptions.

For instance:

def thankyou
begin
render ‘nonexistentjustwanttoseetheexceptionthrownthankyou’
rescue ActionController::ActionControllerError => exc
render :text => exc.to_yaml
rescue Exception => exc
render :text => exc.to_yaml
end
end

get’s name errors - it seems that ActionController’s own exceptions
aren’t defined within its class!!! How do I solve this?

PS Also, how do I html escape text that I want to render using render
:text ?

#2

This same question was asked yesterday, search archives. The basic idea
is to
use rescue_action method.

Kent.

#3

Kent S. wrote:

This same question was asked yesterday, search archives. The basic idea
is to
use rescue_action method.

Kent.

Got it. Thanks.

However, the solution there won’t work for me, as I’d like to catch them
within the actual actions, as opposed to in a general method per
controller.

Could you explain to me why those constants (ie, the AC exception
classes) aren’t defined - shouldn’t they have been defined when
action_controller.rb was included? - and how I can define them?

I’m assuming that, if I were to define them, I could then catch them
within my action methods. Is this true?