即使 is_valid 为 True，Serializer validated_data 也是空的

Question

Following code returning an empty json.

def create_account(request):
    serializer = UserSerializer(data={'name': request.GET.get('name'), 'surname': request.GET.get('surname'),
                                      'password': request.GET.get('password'), 'email': request.GET.get('email')})
    if not serializer.is_valid():
        return HttpResponse(status=401,content=serializer.errors)

    serializer.save()
    return Response(serializer.data)

And this is my serializer

class UserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = ('name', 'surname', 'password', 'email')

    def create(self, validated_data):
        return User.objects.create(**validated_data)

When i send a request, serializer.initial_data is filled correctly. is_valid is returning True but validated_data is empty.

Answer 1

It doesn't look like you're using a custom User model and django.contrib.auth.models.User doesn't have the name and surname fields. It does however have first_name and last_name. Try using those as fields in your serializer instead since they are model fields. Otherwise you'll have to override to_internal_value as this answer suggests.

Unable to get a non-model field in the validated_data of a Django Rest Framework serializer

Answer 2

I had the same problem and I used serializers.Serializer instead of serializers.ModelSerializer after I changed it to ModelSerializer , it solved.