(1048, "Column 'user_id' cannot be null") with Django DRF - django

Question

I wrote code to create new users via POST and DRF (Django Rest Framework) successfully and I can obtain token correctly, however when I try to POST (via DRF) to fill Profile linked to that user I get
(1048, "Column 'user_id' cannot be null")
This is snippets of my code:
for serializers:
class UserSerializer(ModelSerializer):
class Meta:
model = User
fields = ('username','email','first_name','last_name','password')
def create(self, *args, **kwargs):
user = super().create(*args, **kwargs)
p = user.password
user.set_password(p)
user.save()
return user
def update(self, *args, **kwargs):
user = super().update(*args, **kwargs)
p = user.password
user.set_password(p)
user.save()
return user
class ProfileSerializer(ModelSerializer):
class Meta:
model = Profile
fields = ('bio','birth_date','location','country')
def create(self, *args, **kwargs):
profile = super().create(*args, **kwargs)
profile.save()
return profile
def update(self, *args, **kwargs):
profile = super().update(*args, **kwargs)
profile.save()
return profile
and for views:
class ProfileViewSet(viewsets.ModelViewSet):
"""
API endpoint that allows users to be viewed or edited.
"""
permission_classes = IsAuthenticated,
serializer_class = ProfileSerializer
queryset = Profile.objects.all()
class UserViewSet(viewsets.GenericViewSet,mixins.CreateModelMixin,):
"""
API endpoint that allows users to be viewed or edited.
"""
#permission_classes= (IsAdminUser,)
serializer_class = UserSerializer
queryset = User.objects.all().order_by('-date_joined')
and for models:
#receiver(post_save, sender = settings.AUTH_USER_MODEL)
def create_auth_token(sender,instance=None,created=False, **kwargs):
if created:
Token.objects.create(user=instance)
class Country(models.Model):
iso = models.CharField(max_length = 2,unique = True)
name = models.CharField(max_length = 250)
iso3 = models.CharField(max_length = 6)
phonecode = models.CharField(max_length=6)
def __unicode__(self):
return '%s' % self.name
def __str__(self):
return '%s' % self.name
class Profile(models.Model):
#user = models.OneToOneField(User, on_delete=models.CASCADE,default = "")
user = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.CASCADE,default = "")
bio = models.TextField(max_length=100, blank=True)
birth_date = models.DateField(null=True, blank=True)
location = models.CharField(max_length=254, blank=True)
country = models.ForeignKey(Country,on_delete=models.CASCADE,blank=True,null=True)
def __unicode__(self):
return '%s' % self.user
def __str__(self):
return '%s' % self.user
#receiver(post_save, sender=User)
def update_user_profile(sender, instance, created, **kwargs):
if created:
Profile.objects.create(user=instance)
instance.profile.save()
When I try with Postman and I pass a token for token authentication, it recognize the token correctly but I get this error:
(1048, "Column 'user_id' cannot be null") with Django DRF
I appreciate your help to solve this problem

Answer 1

Create() save to the database, so you need to set profile.user_id before calling the function.