It is not in the manual.
give this:
db.mytest.person.requires=[IS_ALPHANUMERIC(),IS_NULL_OR(IS_IN_DB
(db,'dogs.dog_name', (dog_name)s'))]
you can do
class OptionsWidget:
@staticmethod
def has_options(field):
return hasattr(field.requires, 'options')\
or isinstance(field.requires, IS_NULL_OR)\
and hasattr(field.requires.other, 'options')
@staticmethod
def widget(field, value):
id = '%s_%s' % (field._tablename, field.name)
if isinstance(field.requires, IS_NULL_OR)\
and hasattr(field.requires.other, 'options'):
opts = [OPTION(_value='')]
options = field.requires[1].other.options()
elif hasattr(field.requires, 'options'):
opts = []
options = field.requires.options()
else:
raise SyntaxError, 'widget cannot determine options of %s'
% field
opts += [OPTION(v, _value=k) for (k, v) in options]
return SELECT(*opts, **dict(_id=id, _class=field.type,
_name=field.name, value=value,
requires=field.requires))
db.mytest.person.widget=OptionWidget.widget
On May 25, 11:13 am, Timmie <timmichel...@gmx-topmail.de> wrote:
> First, thanks for you both to follow up!>
> db.mytest.person.requires=[IS_ALPHANUMERIC(),IS_NULL_OR(IS_IN_DB
> > (db,'dogs.dog_name', (dog_name)s'))]
>
> > and I believe this is equivalent to what you want, except that it will
> > not display the dropbox without creating a custom widget to handle it.
>
> Well, I would use this as validator.
> But I definately need the drop-down box as it may show already
> existing values in the database.
>
> > not display the dropbox without creating a custom widget to handle it.
>
> Where can I start to create such a widget?
> I searched the manual and it only refers to widgets as GUI (TK)
> widgets.
>
> Regards,
> Timmie
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