[ZPatterns] access denied error

[Steve Spicklemire]

Hi Joachim,

	What kind of objects are these? How do they subclass from DataSkin?

-steve

Joachim Schmitz wrote:
> 
> During my search for the cause of this problem, I found a much easier way to
> reproduce it, though to me it makes even more strange.
> 
> I wrote a little pythonscript to list the entries in my Rack:
> 
> ## Script (Python) "listall"
> ##bind container=container
> ##bind context=context
> ##bind namespace=_
> ##bind script=script
> ##bind subpath=traverse_subpath
> ##parameters=
> ##title=
> ##
> 
> for I in context.getAllIds():
>     item = context.getItem(I)
>     print I,item.RechnungsNr
> return printed
> 
> That pops up the authentication dialog, and if I quit it, I get:
> 
> Traceback (innermost last):
>   File /usr/local/ZopePark/ZopeVersions/Zope-2.3.3/lib/python/ZPublisher/Publish.py, line 223, in publish_module
> ......
>   File /usr/local/ZopePark/ZopeVersions/Zope-2.3.3/lib/python/AccessControl/SecurityManager.py, line 144, in validate
>   File /usr/local/ZopePark/ZopeVersions/Zope-2.3.3/lib/python/AccessControl/ZopeSecurityPolicy.py, line 168, in validate
> Unauthorized: RechnungsNr
> 
> when I change the print line to:
> 
>     print I,item.faellig
> 
> I get:
> 
> 080101 1970/01/01
> 080102 1970/01/01
> 
> So it looks to me it cannot access the value "None", cause I get the
> Unauthorized error only for attributes, which happen to have no value.
> 
> Mit freundlichen Grüßen
> 
> Joachim Schmitz
> 
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