i'm having a similar type of issue. i have the following field:
Field('friends','list:integer', default=[], readable=False,
writable=False),
and it generally works fine. however, when i'm in the gae appadmin and
i try to modify a user's record, if the user has an empty list for
friends, i get this error:
BadValueError: Property friends is required
what i need is for the friends list to be able to be blank. but adding
an IS_EMPTY_OR(IS_INT_LIST()) doesn't help (IS_INT_LIST is a validator
i'll attach below). it still errors when friends has no value.
what can i do to have the list accept an empty entry in appadmin?
thanks,
matt
the validator, just for good measure:
class IS_INT_LIST():
def __init__(self, format='', error_message='must be a list!'):
self.format = format
self.error_message = error_message
def __call__(self, value):
try:
return ([] if value=='[]' or value=='' else [int(x) for x
in value[1:-1].replace('L','').replace(' ','').split(',')], None)
except:
return (value, 'You did not submit an int list.')
def formatter(self, value):
return value
On Sep 25, 4:38 pm, mdipierro <[email protected]> wrote:
> Should be
>
> Field('changed_fields', 'list:string', default=[],
> requires=IS_IN_SET(['explanation', 'output'],multiple=True)
> ),
>
> for multiple=True, IS_NOT_EMPTY is implicit and confuses web2py
>
> On Sep 25, 1:39 pm, Jurgis Pralgauskis <[email protected]>
> wrote:
>
> > hello I get the same problem for list:string orlist:integeron GAE
> > using version 1.85.3
>
> > note: I think now, that the way I defined requires here is not needed,
> > but anyway the errorreporting should handle it more fluently :)
>
> > if from appadmin I try to insert recrod with
>
> > Field('changed_fields', 'list:string', default=[],
> > requires=IS_EMPTY_OR(IS_IN_SET(['explanation', 'output'],
> > multiple=True))
> > ),
>
> > and if I dont select anything for this field, I get:
> > Internal error
> > Ticket issued: unknown
>
> > otherwise it inserts ok.
> > on nonGAE it works without complaints
>
> > I'd expect Validation error message instead.
>
> > on terminal I can see:
> > ERROR 2010-09-25 07:30:12,628 restricted.py:151] Traceback (most
> > recent call last):
> > File "/media/data/veikla/coding/web2py_gae_test/gluon/
> > restricted.py", line 188, in restricted
> > exec ccode in environment
> > File "/media/data/veikla/coding/web2py_gae_test/applications/
> > CodeByExample/controllers/appadmin.py:insert", line 410, in <module>
> > File "/media/data/veikla/coding/web2py_gae_test/gluon/globals.py",
> > line 96, in <lambda>
> > self._caller = lambda f: f()
> > File "/media/data/veikla/coding/web2py_gae_test/applications/
> > CodeByExample/controllers/appadmin.py:insert", line 125, in insert
> > File "/media/data/veikla/coding/web2py_gae_test/gluon/sqlhtml.py",
> > line 1103, in accepts
> > self.vars.id = self.table.insert(**fields)
> > File "/media/data/veikla/coding/web2py_gae_test/gluon/contrib/
> > gql.py", line 296, in insert
> > tmp = self._tableobj(**fields)
> > File "/media/data/veikla/coding/google_appengine/google/appengine/
> > ext/db/__init__.py", line 813, in __init__
> > prop.__set__(self, value)
> > File "/media/data/veikla/coding/google_appengine/google/appengine/
> > ext/db/__init__.py", line 542, in __set__
> > value = self.validate(value)
> > File "/media/data/veikla/coding/google_appengine/google/appengine/
> > ext/db/__init__.py", line 3013, in validate
> > value = super(ListProperty, self).validate(value)
> > File "/media/data/veikla/coding/google_appengine/google/appengine/
> > ext/db/__init__.py", line 569, in validate
> > raise BadValueError('Property %s is required' % self.name)
> > BadValueError: Property changed_fields is required
>
> > ---
> > ps.: later I thought that IS_EMPTY_OR is no use here -- if list is
> > empty then it is empty itself :)
> > but IS_EMPY allows to haveNonevalue as I suppose.
> > anyway after removing this constraint and changingNoneto [],
> > everything seems to work fluently on both GAE and nonGAE.
>
> > by the way, when trying to import from csv with IS_EMPTY_OR, I was
> > getting flash message
> > "Property changed_fields is required"
> > where there isNonefor this field
>
>
