[Zope] Re: traverse_subpath in my product

Evan Simpson evan at 4-am.com
Fri May 28 12:40:53 EDT 2004

Garito wrote:
> I try to use traverse_subpath in my product but I can't found a real good
> solution
> I found some pages explaining you need to override __bobo_traverse__ or
> __getitem__ in order to implement traverse_subpath on a product but I think
> it's a really poor solution

Much better is to define a __before_publishing_traverse__ method on your 
object.  Unfortunately, due to a longstanding bug in the hook machinery, 
you will need to write your method like this for the moment:

def __before_publishing_traverse__(self, x, request=None):
     if request is None:
         request = x
     # Use self and request normally from here.

Inside your hook method, you can examine and manipulate the stack of 
un-traversed path names "request['TraversalRequestNameStack']".


Evan @ 4-am

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