[Zope-dev] z3c.form - extraction from sequence widget
Martin Aspeli
optilude at gmx.net
Wed Aug 27 18:07:21 EDT 2008
Hi,
In z3c.form.widget.SequenceWidget, we have:
def extract(self, default=interfaces.NOVALUE):
"""See z3c.form.interfaces.IWidget."""
if (self.name not in self.request and
self.name+'-empty-marker' in self.request):
return []
value = self.request.get(self.name, default)
if value != default:
for token in value:
if token == self.noValueToken:
continue
try:
self.terms.getTermByToken(token)
except LookupError:
return default
return value
This means that if the request contains the empty-marker only (no
selection was made) for a checkbox widget (say), then the return value
is [], rather than default (NOVALUE).
Is that a bug? I have a custom checkbox widget derived from the standard
checkbox widget, (z3c.formwidget.query, in fact), and I never get any
"required missing" exceptions, even when I untick all the checkboxes and
click OK.
Am I missing something?
Cheers,
Martin
--
Author of `Professional Plone Development`, a book for developers who
want to work with Plone. See http://martinaspeli.net/plone-book
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