python - QuerySet 对象在 Django Rest Framework 上没有属性 'user'

Question

在 Django Rest Framework 上执行请求时，我无法序列化模型以获得结果。

模型.py

class Karfarma(models.Model):
    user = models.OneToOneField(User, related_name='karfarma', on_delete=models.CASCADE)
    mobile = models.TextField(max_length=11)
    validation_number = models.TextField(max_length=5, blank=True, default=None)
    phone_number = models.TextField(max_length=10, blank=True, default=None)
    datetime_join_persian = models.DateTimeField(default=None, null=True)

    def __unicode__(self):
        return "%s %s" % (self.user.first_name, self.user.last_name)

序列化器.py

class UserSerializer(serializers.ModelSerializer):

    class Meta:
        model = User
        fields = '__all__'

View .py

class UserList(APIView):
    queryset = User.objects.all()

    def get(self, request):
        users = User.objects.all()
        serializer = UserSerializer(users)
        return Response(serializer.data)

这是我在执行请求时得到的错误的简化版本:

AttributeError: Got AttributeError when attempting to get a value for field user on serializer UserSerializer.The serializer field might be named incorrectly and not match any attribute or key on the QuerySet instance.Original exception text was: 'QuerySet' object has no attribute 'user'.

Answer 1

每当您尝试将查询集传递给序列化程序时，始终使用 UserSerializer(users,many=True) 传递它。如果您只想传递单个用户对象，您可以使用 User.objects.get(some_attribue=something) 然后将该对象传递给没有 many=True 的序列化程序旗帜。