DRF nested serializer issue on create - django

Question

I have a User model and a phone model the phone model has a foreign key relation with the user model I read the docs on NestedSerializers and tried it to no avail.
The model
class Phone(models.Model):
phone = models.CharField(
_("phone number"), max_length=13, blank=True, null=True)
otp = IntegerRangeField(min_value=6, max_value=6, blank=True, null=True)
def __str__(self):
return self.phone
class User(AbstractBaseUser, PermissionsMixin):
phone = models.ForeignKey(
Phone, on_delete=models.CASCADE, related_name="userphone", blank=False, null=True)
this is my serializers.py file
class PhoneSerializer(serializers.ModelSerializer):
# opt = serializers.IntegerField(read_only=True)
class Meta:
model = Phone
fields = ['phone']
class RegisterSerializerBase(serializers.ModelSerializer):
phone = PhoneSerializer(allow_null=True)
# otp = PhoneSerializer(many=True, read_only=True)
email = serializers.EmailField(
required=True,
validators=[UniqueValidator(queryset=User.objects.all())])
password = serializers.CharField(
write_only=True, re
quired=True, validators=[validate_password])
password2 = serializers.CharField(write_only=True, required=True)
class Meta:
model = User
fields = ('email', 'firstname', 'lastname', 'password', 'password2',
'phone',)
extra_kwargs = {'password': {'write_only': True},
'password2': {'write_only': True},
'firstname': {'required': True},
'lastname': {'required': True},
}
def validate(self, attrs):
if attrs['password'] != attrs['password2']:
raise serializers.ValidationError(
{"password": "Password fields didn't match."})
return attrs
def create(self, validated_data):
phones = validated_data.pop('phone')
instance = User.objects.create(
email=validated_data['email'],
firstname=validated_data['firstname'],
lastname=validated_data['lastname'],
is_active='True',
type=User.TYPES.OWNER,
)
instance.set_password(validated_data['password'])
for phone in phones:
Phone.objects.create(instance=instance, **phone)
instance.save()
return instance
when I go the the Browsable API and create a user with the credentials an error comes up saying
django.db.models.manager.BaseManager._get_queryset_methods.<locals>.create_method.<locals>.manager_method() argument after ** must be a mapping, not str

Answer 1

Check if this helps you -
Models -
User model is already defined.
class Phone(models.Model):
user = models.Foerienkey(User, related_name="abc")
phone = models.CharField(max_length=13, blank=True, null=True)
Serializer -
from rest_framework import serializers
from django.contrib.auth.models import User
class CurrentUserSerializer(serializers.Serializer):
abc = phoneserializer(many=True, required=False)
## define phone serializer before currentuser serializer
class Meta:
model = User
fields = ('username', 'email', 'id', 'abc')
Views -
##user create method
def create(self, validated_data):
phones = validated_data.pop('recievedPhoneDataArray')
instance = User.objects.create(
email=validated_data['email'],
firstname=validated_data['firstname'],
lastname=validated_data['lastname'],
is_active='True',
type=User.TYPES.OWNER,
)
instance.set_password(validated_data['password'])
for phone in phones:
Phone.objects.create(user=instance, **phone)
instance.save()
return instance
You will have to extend the registeruserserializer from rest frameowrk. may be.