def validate(self, data=None, from_flat=True):
"""Validate the form against the data passed. If no data is provided
the form data of the current request is taken. By default a flat
representation of the data is assumed. If you already have a non-flat
representation of the data (JSON for example) you can disable that
with ``from_flat=False``.
"""
if data is None:
data = self._autodiscover_data()
if from_flat:
data = decode_form_data(data)
self.raw_data = data
# for each field in the root that requires validation on value
# omission we add `None` into the raw data dict. Because the
# implicit switch between initial data and user submitted data
# only happens on the "root level" for obvious reasons we only
# have to hook the data in here.
for name, field in self._root_field.fields.iteritems():
if field.validate_on_omission and name not in self.raw_data:
self.raw_data.setdefault(name)
d = self.data.copy()
d.update(self.raw_data)
errors = {}
try:
data = self._root_field(d)
except ValidationError, e:
errors = e.unpack(self)
def test_decode_list_in_dict(self):
d = utils.decode_form_data({
'a_list': ['foo', 'bar'],
'a_list.42': 'baz',
'a_list.23': 'meh'
})
self.assertEqual(d['a_list'], ['foo', 'bar', 'meh', 'baz'])
def test_decode_form_data_multidicts(self):
for dcls in WebObLikeDict, WerkzeugLikeDict:
d = utils.decode_form_data(dcls())
self.assertEqual(d['key1'], ['value1', 'value2', 'value3'])
self.assertEqual(d['key2'], 'awesome')