Parikh, Jay writes:

I have a simple ZCatalog that I am trying to sort via the path of the objects. I have the following so far, and it doesn't seem to work.

<dtml-in catalog sort="catalog.getpath(data_record_id_)" size=50 start=query_start> With Zope 2.3, you can use "sort=getpath".

I fear, it is much more difficult with older Zope versions. The "sort_expr" is evaluated just once at the start of the sort to get a sort specification for the complete sort. It is not evaluated in the context of each element, thus, it can not use the elements attributes (such as "data_record_id_". You can use a Python Script (or external method) that returns "catalog.getpath(data_record_id_)" and use that as sort criterion. Dieter