Rails - Dec 2005 - Possible Bug with intercept calls with alias_method

Hi all I''m trying user alias_method to overload the link_to method,  It
works the first time,  but when I reload the page, it will have an error
"stack level too deep".

I''m using rails 0.14.3  ruby 1.8.2 Webrick in winxp, I suspect it is a
bug.

this is my helper''s code

module UsersHelper
  include ActionView::Helpers::UrlHelper

  alias_method :link_to_original, :link_to

  def link_to(name, options = {}, html_options
nil,*parameters_for_method_reference)
     if permission?
       link_to_original( name,
options,html_options,*parameters_for_method_reference )
     end
  end


end

On 12/5/05, Paul Chin <paulchin-0SqPFV7GnR3FK4RKhr3rmg@public.gmane.org>
wrote:
> Hi all I''m trying user alias_method to overload the link_to
method,  It
> works the first time,  but when I reload the page, it will have an error
> "stack level too deep".
>
> I''m using rails 0.14.3  ruby 1.8.2 Webrick in winxp, I suspect it
is a bug.
>
> this is my helper''s code
>
> module UsersHelper
>   include ActionView::Helpers::UrlHelper
>
>   alias_method :link_to_original, :link_to
>
>   def link_to(name, options = {}, html_options >
nil,*parameters_for_method_reference)
>      if permission?
>        link_to_original( name,
> options,html_options,*parameters_for_method_reference )
>      end
>   end
>
>
> end
It''s probably running that on every request.  On the second request it
maps your new link_to to link_to_original.  Try surrounding it in
this:

unless respond_to?(:link_to_original)

end


--
rick
http://techno-weenie.net

technoweenie wrote:
> It''s probably running that on every request.  On the second
request it
> maps your new link_to to link_to_original.  Try surrounding it in
> this:
> 
> unless respond_to?(:link_to_original)
> 
> end

Hi, I am trying to do the same thing and unfortunately the respond_to? 
approach doesn''t have any affect.

Any ideas on how to overload the link_to function?

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