python - Integrity error while trying to serialize nested object using django rest framework -

model file

class address(models.model):     address_id = models.autofield(primary_key=true, auto_created=true)     address_data = models.charfield(max_length=250)   class user(models.model):     user_id = models.autofield(primary_key=true)     name = models.charfield(max_length=50)     address = models.foreignkey(address) 

serializer file

class addressserializer(serializers.modelserializer):      class meta:         model = address         fields = ('address_data')   class userserializer(serializers.modelserializer):     address = addressserializer()      class meta:         model = user         fields = ('name', 'address')      def create(self, validated_data):         address_data = validated_data.pop('address')         user = user.objects.create(**validated_data)         address.objects.create(user=user, **address_data)         return user 

i have above code snippet in model , serializer file. getting integrity error while serializing , saving following object.

{"name": "john", "address": {"address_data": "some address"}} 

i trying save 2 objects in 2 tables foreign key constraint. place feel erroring out user = user.objects.create(**validated_data) because address object still not created , trying save user object without address reference.

i checked django-rest-framework documentation. not able understand going wrong.

in userserializer model address. shouldn't user?

edit

your create method on userserializer should this:

def create(self, validated_data):         address_data = validated_data.pop('address')         address = address.objects.create(**address_data)         validated_data['address'] = address         user = user.objects.create(**validated_data) 

your user has foreign key address, not passing on user's create method.