Andreas Leitner writes:
.... Now this is how my /show_tree looks like: -- <dtml-tree id="/show_tree" skip_unauthorized expr="/visible_tree" branches="objectValues"> <a href="<dtml-var absolute_url>"> <dtml-var title_or_id> </a> </dtml-tree> What strange "id" and "expr" you are using....
When I read the doc, I had the impressions that "id" should be a method name, but sure enough "/show_tree" is a very stange method name. In earlier Zope versions, "dtml-tree" did not evaluate the "expr" attribute (a bug). Apparently, this is still the case with your Zope version. Otherwise, you should get a SyntaxError, because "/visible_tree" is not a valid Python expression. There are various HowTos at Zope.org about use of "dtml-tree". Maybe, you should read them... Dieter