[Zope] setting the client namespace for a DTML Method

[Guido A.J. Stevens]

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When Zen borders on Kamikaze.....

DTML Document --> product method --> DTML method

I've been banging my head against this for 4 days in a row now. I want 
to call a DTML method, via a product method, from a DTML document, but
I don't succeed in setting the client namespace for the DTML method to 
the original DTML Document's namespace.

I'd appreciate any help!

I have a DTML document. It has a valid aq_parent. From this DTML document, 
I'm calling a product method, passing the DTML documents's aq_parent as
an argument:

<dtml-var "NFGnavCore.aqqy(aq_parent)">

This method has access to the aq_parent object all right, tested
OK. Next, the DTML method is called from the product python method and
the original aq_parent object is given as the new acquisition context:

	def aqqy(self, context=None):
		""" some test method"""
		retval= "Hi! I'm the aqqy method, called with context.id <b>%s</b>" % context.id
		return retval + self.aqqy_helper(client=context)

The DTML method 'aqqy_helper' is called all right, but has no access
to the context object passed in. Any attempt to access objects that
should be in the acquired namespace, for example:

		 My aq_parent id= <dtml-var "aq_parent.id">

results in an error message:

          You are not authorized to access aq_parent. 

Which, if I'm not mistaken, is caused by the validate routine called 
from OFS/DTMLMethod.py as documented in 'oldvalidate()':

        if inst is parent:
            raise 'Unauthorized', (
                'You are not authorized to access <em>%s</em>.' % name)

So what am I doing wrong, and what is the right way to call DTML
methods from product methods?

:*CU#
-- 
***    Guido A.J. Stevens      ***    mailto:gyst@nfg.nl    ***
***    Net Facilities Group    ***    tel:+31.43.3618933    ***
***    http://www.nfg.nl       ***    fax:+31.43.3560502    ***

By 2003, most industrial countries wil log and analyze the movements
of every citizen.
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