使用Djoser令牌身份验证检索用户first_name的Django REST框架

Question

我正在使用django rest框架djoser身份验证。因此，我想要的是用户登录时，它将返回其用户令牌，提示，状态，first_name和last_name。

djoser：http：//djoser.readthedocs.io/en/latest/introduction.html

现在，我能够显示令牌，提示和状态，但对于first_name和last_name，我有错误尝试这样做。

Serializers

    class TokenCreateSerializer(serializers.Serializer):
    password = serializers.CharField(
        required=False, style={'input_type': 'password'}
    )
    default_error_messages = {
        'invalid_credentials': constants.INVALID_CREDENTIALS_ERROR,
        'inactive_account': constants.INACTIVE_ACCOUNT_ERROR,
    }
    def __init__(self, *args, **kwargs):
        super(TokenCreateSerializer, self).__init__(*args, **kwargs)
        self.user = None
        self.fields[User.USERNAME_FIELD] = serializers.CharField(
            required=False
        )
    def validate(self, attrs):
        self.user = authenticate(
            username=attrs.get(User.USERNAME_FIELD),
            password=attrs.get('password')
        )
        self._validate_user_exists(self.user)
        self._validate_user_is_active(self.user)
        return attrs
    def _validate_user_exists(self, user):
        if not user:
            self.fail('invalid_credentials')
    def _validate_user_is_active(self, user):
        if not user.is_active:
            self.fail('inactive_account')

customViews.py

class CustomTokenCreateView(cutils.ActionViewMixin, generics.GenericAPIView):
"""
Use this endpoint to obtain user authentication token.
"""
    serializer_class = TokenCreateSerializer
    permission_classes = [permissions.AllowAny]
    def _action(self, serializer):
        token = utils.login_user(self.request, serializer.user)
        token_serializer_class = settings.SERIALIZERS.token
    content = {
            'Token': token_serializer_class(token).data["auth_token"],
            'promptmsg': 'You have successfully login',
            'status': '200',
            'first_name': self.request.user.first_name,
            'last_name': self.request.user.last_name
        }
        return Response(
            data=content,
            status=status.HTTP_200_OK,
        )

此代码将出现一个错误：

AttributeError at /logintest/
    'AnonymousUser' object has no attribute 'first_name'

有没有办法解决此问题？

Answer 1

身份验证请求不包含其标题中的身份验证令牌，这就是request.user返回匿名对象的原因。要解决此错误，您需要用serializer.user替换request.user这样的错误：

content = {
        'Token': token_serializer_class(token).data["auth_token"],
        'promptmsg': 'You have successfully login',
        'status': '200',
        'first_name': serializer.user.first_name,
        'last_name': serializer.user.last_name
    }