18 Jun
2003
18 Jun
'03
6:44 p.m.
Andreas Pakulat wrote at 2003-6-18 01:31 +0200:
I just wondered if it is possible (without an Python-based Product) to have date-Properties that have no value, but None or some equivalent.
You must modify Zope's code, adding a new "date_or_none" property type together with its converter. Dieter