在序列化程序中创建和返回令牌

Question

当前在注册视图中返回令牌时遇到困难。

如何修复此问题，以便UserSerializer的创建可以返回令牌和用户名？

查看.py

@permission_classes([AllowAny])
class UserCreate(generics.CreateAPIView):
queryset = User.objects.all()
serializer_class = UserSerializer

序列化程序.py

class UserSerializer(serializers.ModelSerializer):
class Meta:
model = User
fields = ('username', 'password')
extra_kwargs = {'password': {'write_only': True}}
def create(self, validated_data):
password = validated_data.pop('password')
user = User(**validated_data)
user.set_password(password)
user.save()
token, _ = Token.objects.get_or_create(user=user)
return Response(
{
'username': validated_data['username'],
'token': token.key,
},
status=HTTP_200_OK
)

错误

AttributeError: Got AttributeError when attempting to get a value for field `username` on serializer `UserSerializer`.
The serializer field might be named incorrectly and not match any attribute or key on the `Response` instance.
Original exception text was: 'Response' object has no attribute 'username'.
[13/Nov/2020 20:26:44] "POST /account/register HTTP/1.1" 500 120116

Answer 1

最终将其放入序列化程序：

class UserCreate(generics.CreateAPIView):
queryset = User.objects.all()
serializer_class = UserSerializer
def create(self, request, *args, **kwargs):
serializer = self.get_serializer(data=request.data)
serializer.is_valid(raise_exception=True)
self.perform_create(serializer)
token, created = Token.objects.get_or_create(user=serializer.instance)
return Response({'token': token.key, 'username': serializer.instance.username}, status=HTTP_201_CREATED)```