def validate(self, value, instance=None):
if not self.required and value is None:
return
if self.required and value is None:
raise RequiredFieldError('Field \'{}\' is required'.format(
self.name))
if self._type is not None and not isinstance(value, self._type):
raise FieldTypeError(
'{} value is not of type {}, given "{}"'.format(
self.name, self._type.__name__, value))
if self._validator:
try:
res = self._validator(value)
except ValidationError as e:
if e.field_name is None:
raise ValidationError(
'{} did not pass the validation: {}'.format(
self.name, e.message),
field_name=self.name)
else:
raise
if res is False:
raise ValidationError('{} did not pass the validation'.format(
self.name))
return
def validator(values):
for i, x in enumerate(values):
if not isinstance(x, str) or not re.match('foo[0-9]', x):
raise ValidationError(
'element at index {} does not match the regex'.format(
i))
def validate(self):
if self.foo is None and self.bar is None:
raise ValidationError(
'one between foo and bar must be set')
def validator(x):
if not bool(re.match(regex, x)):
raise ValidationError('value does not match regex'.format())