Constraint error after a validation from model

[alepn]

After a validation from model (ex.: unique field violate), I cannot send the request again.

It causes a constraint error:

null value in column "foo_id" violates not-null constraint

[yezyilomo]

It’s hard to know what might be causing that problem if you don’t post a piece of code which you think it might be causing that error, so please do.

[alepn]

MODELS

class Profile(models.Model):
    name = models.CharField('Name', max_length=80)

class Email(models.Model):
    profile = models.ForeignKey(Profile)
    email = models.CharField('Email', max_length=80, unique=True)

SERIALIZERS

from django_restql.mixins import DynamicFieldsMixin
from django_restql.serializers import NestedModelSerializer

class EmailSerializer(DynamicFieldsMixin, NestedModelSerializer):
    class Meta:
        model = Email
        fields = ['profile','email']

class ProfileSerializer(DynamicFieldsMixin, NestedModelSerializer):
    email_set = NestedField(EmailSerializer, many=True, required=False, allow_null=True)
    class Meta:
        model = Email
        fields = ['name','email_set']

If you send a request with a existing email, it will fail because the unique constraint. If you resend the request with another e-mail, it show a fk constraint error, because profile_id on nested email_set was lost. Tested with django-restql versions: 0.10.2 and 0.11.2

[yezyilomo]

This is not django-restql's problem, DRF doesn't handle all IntegrityErrors raised by django ORM due to failed database constrains, so you are supposed to handle these yourself by using fields validation on your serializers, the way you did it here