On May 3, 2006, at 11:51 PM, Bernd Dorn wrote:
yes, this should really be fixed up in the default implementation
of formlib
because interface.Invalid has no registered multiadapter to
zope.app.form.browser.interfaces.IWidgetInputErrorView
you have to raise a WidgetInputError
an example for such an error:
from zope.schema import Datetime,Bool,ValidationError
from zope.app.form.interfaces import IWidgetInputError
class FromGreaterThanTo(ValidationError):
u"""From-Date is after To-Date"""
# this is needed to adapt to a view for formlib
implements(IWidgetInputError)
Well, you can raise any error from an invariant that
extends...zope.interface.Invalid, maybe? The invariant interface
says what is allowed somewhere in zope.interface.
...I suppose we could have a generic view for Invalid errors that
simply said "This is invalid, try again"? Doesn't seem very useful
to me.
You are responsible for making sure you have a reasonable exception
view of an exception you raise. I'm inclined to think that this is a
documentation bug at worst.
Gary
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