"H.G.J. van der Linde" <linde@fsw.leidenuniv.nl> wrote:

We have a sql database with employee information. Every employee record has an MWID field. Photo's of the employees are stored in a Zope folder (mwfoto) where the id of every photo has MWID as its name. So we can display the photo like this:

<img src="/psychologie/mwfoto/<dtml-var mwid>"

This works fine. Now I want to check if a photo exists, and if not, display some other info. In some sort of Zope pseudocode:

<dtml if exist(mwid)> showphoto <dtml else> showanotherveryinterestingpicture </dtml-if>

How do I do this?

Stack your namespaces manually:: <dtml-with psychologie> <dtml-with mwfoto> <dtml-if "_.has_key( mwid )" > <dtml-var "_[ mwid ].tag()"> <dtml-else> <dtml-var "anotherveryinterestingpicture.tag()"> </dtml-if> </dtml-with> </dtml-with> -- ========================================================= Tres Seaver tseaver@palladion.com 713-523-6582 Palladion Software http://www.palladion.com