Am Donnerstag 28 August 2008 17:45:58 schrieb Marius Gedminas: > On Thu, Aug 28, 2008 at 05:26:20PM +0200, Hermann Himmelbauer wrote: > > Am Donnerstag 28 August 2008 10:14:11 schrieb Martin Aspeli: > > > What about the case when you have a list of options of which you need > > > to chose one or more? In that case, ticking none is a validation error. > > > > Yes, in your case this should give a validation error. However, the case > > where someone uses a checkbox for a True/False operation is at least as > > common. And if "no ticking" gives a validation error, this would prevent > > using checkboxes for this case. Moreover, a checkbox is typically used to > > represent a "Bool" schema (by default it's a choice widget, I think), so > > that fits well, I think. > > > > My suggestion would be to: > > > > - Create some schema field, e.g. "MultipleChoice": > > > > colors = MutlipleChoice(title='Colors', values=['red', 'green', 'blue'], > > default=['green', 'blue'], required=True) > > colors = Set(type=u"Choose your favourite colors", > value_type=Choice(values=['red', 'green', 'blue']), > min_length=1)
Yes, so it already exists, then. Best Regards, Hermann -- [EMAIL PROTECTED] GPG key ID: 299893C7 (on keyservers) FP: 0124 2584 8809 EF2A DBF9 4902 64B4 D16B 2998 93C7 _______________________________________________ Zope-Dev maillist - Zope-Dev@zope.org http://mail.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope )
