[Zope] depthfinder

[Ethan Fremen]

I'm trying to include code in my standard_html_footer that checks to see
if I'm more than 2 folders deep in the site.  If so, I want a back
button.

why doesn't this work?  It fails if PARENTS[1] evaluates to false.

<dtml-if "PARENTS[1]"><a href="<dtml-var
"PARENTS[1].absolute_url()">">back</a></dtml-if>

last lines of traceback:

  File
/usr/local/src/Zope-2.0.0-src/lib/python/DocumentTemplate/DT_Util.py,
line 321, in eval
      (Object: PARENTS[1])
    File <string>, line 0, in ?
    File
/usr/local/src/Zope-2.0.0-src/lib/python/DocumentTemplate/DT_Util.py,
line 156, in careful_getitem
  IndexError: list index out of range

(zope 2.0.0), i know about the security issue & will upgrade before
going live.
--
Ethan "mindlace" Fremen
you cannot abdicate responsibility
for your ideology.