def name(self):
name = self.context.__title__ or self.context.__id__
if not name:
name = _(u'Preferences')
return name
def __set__(self, inst, value):
field = self._field.bind(inst)
field.validate(value)
if field.readonly and hasattr(inst.data, self._name):
raise ValueError(self._name, _(u"Field is readonly"))
setattr(inst.data, self._name, value)