[Zope] How to control the number of contained items

Bocquillon Philippe Philippe.Bocquillon@trasys.be
Fri, 19 Oct 2001 09:10:13 +0200


Hello,

I would like to know how I can (with Python code) limit to one at most the
number of items of a given meta type in an ObjectManager object.
How to disable the "Add <Meta type>" button when there is already one object
of this meta type ? 

Thank you in advance,

Philippe Bocquillon