[Zope] ZCatalog counting?

[Erik Enge]

On Tue, 27 Jun 2000, Alexander Limi wrote:

> Is there an easy way to count the number of occurences of a certain meta
> type in a Catalog? E.g: I want a dtml snippet that outputs:

Couldn't you do:

<dtml-call "REQUEST.set('counter', 0)">

<dtml-in "objectValues('DTML Document')">
  <dtml-call "REQUEST.set('counter', counter+1)">
</dtml-in>

This folder (<dtml-var title_or_id) has <dtml-var counter>
number of objects with the meta type DTML Document.