Rails - Apr 2006 - Can''t override routing code

I want to change some of Rails'' routing code so that I can make routes 
subdomain-sensitive.

The code at http://wiki.rubyonrails.com/rails/pages/RoutingSubdomains 
works fine when I edit the file (in my case, 
C:\Program\Ruby\lib\ruby\gems\1.8\gems\actionpack-1.12.1\lib\action_controller\routing.rb)
directly.

Changing that file seems very fragile, so I figured I would override the 
method in question in environment.rb instead. However, it seems my 
routing code is never used for routing...

I added this to the end of environment.rb and rebooted the server:

  class ActionController::Routing::RouteSet
  	def recognize(request)
  		"some text for testing"
  	end
  end

Now, if I do this in some view, I get the output "some text for 
testing":

  DEBUG: <%=ActionController::Routing::RouteSet.new.recognize(:foo)%>

but the new RouteSet#recognize method is obviously not being used for 
actual routing, since the routing keeps on working.

If I change the method directly in routing.rb to simply return "some 
text for testing", routing breaks completely.

Again, could anyone please tell me what I''m doing wrong, and how to fix
it?

I suppose a workaround would be to include Rails in the lib directory 
and modify that, but that''s still a lot uglier than just modifying that
one method.

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Posted via http://www.ruby-forum.com/.

Henrik N wrote:
> I want to change some of Rails'' routing code so that I can make
routes
> subdomain-sensitive.
> ... 
Solved it myself. I simply needed to include
        alias :recognize! :recognize
in my modification, since routing apparently uses recognize! rather than 
recognize internally, and since overriding the method apparently means 
any aliases need overriding as well.

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