[Zope-dev] Tree expand_all bug

[Jason Spisak]

I've got a very simple tree tag and want all items to be expanded upon
initial viewing.

<dtml-tree branches_expr="objectValues()" sort=id> 
<dtml-if "meta_type=='Folder'"> 
<IMG SRC="<dtml-var icon>" BORDER=0>
<b><dtml-var title></b> 
<dtml-else> 
<A HREF="<dtml-var tree-item-url>"> 
<dtml-if "title!=''">
<IMG SRC="<dtml-var icon>" BORDER=0>&nbsp;<font size=+3><b><dtml-var
title></b></font></A> 
</dtml-if>
</dtml-if>
</dtml-tree> 

If I put this code before the tree tag it produces an error.

<dtml-call "REQUEST.set('expand_all', 1)">

Zope has encountered an error while publishing this resource. 

          Error Type: KeyError
          Error Value: branches



          Troubleshooting Suggestions

              This resource may be trying to reference a nonexistent
object or variable branches. 
              The URL may be incorrect. 
              The parameters passed to this resource may be incorrect. 
              A resource that this resource relies on may be
encountering an error. 

          For more detailed information about the error, please refer to
the HTML source for this page. 

          If the error persists please contact the site maintainer.
Thank you for your patience. 


Traceback (innermost last):
  File /Zope/lib/python/ZPublisher/Publish.py, line 214, in
publish_module
  File /Zope/lib/python/ZPublisher/Publish.py, line 179, in publish
  File /Zope/lib/python/Zope/__init__.py, line 202, in
zpublisher_exception_hook
    (Object: ElementWithAttributes)
  File /Zope/lib/python/ZPublisher/Publish.py, line 165, in publish
  File /Zope/lib/python/ZPublisher/mapply.py, line 160, in mapply
    (Object: index_html)
  File /Zope/lib/python/ZPublisher/Publish.py, line 102, in call_object
    (Object: index_html)
  File /Zope/lib/python/OFS/DTMLMethod.py, line 145, in __call__
    (Object: index_html)
  File /Zope/lib/python/DocumentTemplate/DT_String.py, line 502, in
__call__
    (Object: index_html)
  File /Zope/lib/python/TreeDisplay/TreeTag.py, line 154, in render
    (Object: a tree tag)
  File /Zope/lib/python/TreeDisplay/TreeTag.py, line 210, in tpRender
    (Object: ElementWithAttributes)
KeyError: (see above)

Any ideas?
-- 
Jason Spisak
444@hiretechs.com