python - 如何用序列化器实现，当管理员用户请求时，序列化所有字段，而普通用户请求时，序列化部分字段？

Question

如何使用序列化器实现，当管理员用户请求时，序列化所有字段，而普通用户请求时，Rest Framework中序列化部分字段？

在我的序列化器中:

class UserListSerializer(ModelSerializer):
    """
    user serializer
    """
    account = AccountSerializer(many=False, read_only=True)
    class Meta:
        model = User
        exclude = [
            'password',
        ]
...

class AccountSerializer(ModelSerializer):
    """
    user's accout
    """
    class Meta:
        model = Account
        exclude = [
            'total_charge',
            'total_consume',
        ]

在 View 中:

 class UserListAPIView(ListAPIView):
    """
    the user view 
    """
    queryset = User.objects.filter(is_admin=False, is_staff=False, is_superuser=False).exclude(status=4)
    serializer_class = UserListSerializer
    filter_backends = [SearchFilter, OrderingFilter]
    search_fields = ['username', 'qq', 'email']
    pagination_class = UserPageNumberPagination

    class Meta:
       ordering = ['-id']

我的要求是，当我使用普通用户请求 APIView 时，我想排除以下字段:

'total_charge','total_consume'

如果我使用管理员用户请求 APIView，我想序列化所有字段。

<小时/>

编辑

我添加了 get_serializer_class 方法:

class UserListAPIView(ListAPIView):
    """
    返回普通用户列表
    """
    queryset = User.objects.filter(is_admin=False, is_staff=False, is_superuser=False).exclude(status=4)

    filter_backends = [SearchFilter, OrderingFilter]
    search_fields = ['username', 'qq', 'email']
    pagination_class = UserPageNumberPagination

    class Meta:
       ordering = ['-id']

    def get_serializer_class(self):
        if self.request.user.is_superuser:
            return UserAdminListSerializer
        else:
            return UserListSerializer

    serializer_class = get_serializer_class()  # if I put this line in the front of `def get_serializer_class(self)` I will get not find error.

当我运行服务器时，它在这里出现问题:

回溯:

 File "/Users/xsx/Desktop/xsx/Project/xss/qiyun_admin_usermanage/api/views.py", line 40, in <module>
    class UserListAPIView(ListAPIView):
  File "/Users/xsx/Desktop/xsx/Project/xss/qiyun_admin_usermanage/api/views.py", line 59, in UserListAPIView
    serializer_class = get_serializer_class()
TypeError: get_serializer_class() missing 1 required positional argument: 'self'

Answer 1

您可以创建两个序列化器并在 View 中覆盖get_serializer_class，如下所示。

def get_serializer_class(self):
    if self.request.user.is_superuser:
        return FullAccountSerializer
    return BasicAccountSerializer