Rails - Dec 2005 - How to abort program flow after a redirect?

I''m developing an authorization plug-in which adds a permit keyword, so
you
can do things like:

class FooController < ApplicationController
  permit "member"

  def edit
    permit "owner of :document", :document =>
Document.find(params[:id])
    # stuff to edit..
  end
end

I''ve got it mostly working, but if the permit in #edit fails, a
redirection
within permit won''t short-circuit the statements after the permit. It
can
work by using a block, as in:

permit "admin or owner of :document" do
  # stuff to edit
end

or a simple expression like:

if permit? "admin"
  # stuff to edit
end

But I''d like a failed permit to act like a "return" at the
level of #edit,
so any statements downstream aren''t executed. Any ideas?

Thanks, Bill


_______________________________________________
Rails mailing list
Rails-1W37MKcQCpIf0INCOvqR/iCwEArCW2h5@public.gmane.org
http://lists.rubyonrails.org/mailman/listinfo/rails

Hi,

How about

return unless permit "owner of :document", :document =>
Document.find(params[:id])

--
Cheers,

Peter Donald

Blog: http://www.RealityForge.org

I guess that''s the simplest solution if I can''t figure out a
way to bundle
the return into the permit declaration. Was trying to see how far the
metaprogramming could be taken.

On 12/30/05, Peter Donald <peter.j.donald@gmail.com>
wrote:
>
> Hi,
>
> How about
>
> return unless permit "owner of :document", :document =>
> Document.find(params[:id])
>
> --
> Cheers,
>
> Peter Donald
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL:
http://wrath.rubyonrails.org/pipermail/rails/attachments/20051231/d772cc11/attachment.html