Daniel Chudnov <daniel.chudnov@yale.edu> wrote:

Trying to add a date property to a class, Zope's giving me an "Invalid Date-Time String" when I leave the initial value blank. Is this a configuration problem (rh6.0, Zope 2.1.6 w/zserver) or by design? There shouldn't be a default value for this property in the interface I'm building...

This is actually a problem with ZPublisher's marshalling code, rather than the property sheet per se. There is a bug in the Collector describing it: http://classic.zope.org:8080/Collector/645/view The workaround is to supply a "bogus" value ('1970/01/01' is the one I most often use) for the property, and then in the "edit" method, to add code checking for the bogus value:: <dtml-if "REQUEST[ 'dateProperty' ] == _.DateTime( '1970/01/01' )"> <dtml-call "REQUEST.set( 'dateProperty', None )"> </dtml-if> -- ========================================================= Tres Seaver tseaver@digicool.com tseaver@palladion.com