24👍
Django expects your ValidationErrors to be instantiated with a dictionary instead of a string:
from django.db.models import Model
from django.core.exceptions import ValidationError
from django.core.exceptions import NON_FIELD_ERRORS
class Person(Model):
...
def validate_unique(self, *args, **kwargs):
super(Person, self).validate_unique(*args, **kwargs)
if not self.id:
if self.__class__.objects.filter(...).exists():
raise ValidationError(
{
NON_FIELD_ERRORS: [
'Person with same ... already exists.',
],
}
)
👤Jian
Source:stackexchange.com