Question

我在测试GET请求时跟踪了一些过时的tutorialand，该请求期望获取所有用户列表我收到错误：

'QuerySet' object has no attribute 'append'

下面是UserProfile模型。

 class UserProfile(models.Model):
    user = models.OneToOneField(User)
    nickname = models.CharField(max_length = 128)
    comment = models.TextField()
    country = models.CharField(max_length = 128, blank = True)
    url = models.CharField(max_length = 128, blank = True)
    ignores = models.ManyToManyField(User, related_name = 'ignore_set', blank = True, null = True)

    def serialize(self):
        data = {
        'user':self.user_id,
        'username':self.user.username,
        'nickname':self.nickname,
        'comment':self.comment,
        'country':self.country,
        'url':self.url,
        'ignores':[],
        }
        return data

下面是view.py（请参阅 api / user / list ）

def user_view(request, method):
    # api/user/create: api that creating new account.
    if method == 'create' and request.method == 'POST':
        ...
    #api/user/update: api that update user's oldpassword with new one
    elif method == 'update' and request.method == 'POST':
        ...
    elif method == 'list':
        users = UserProfile.objects.all()
        return toJSON(serial(users))
    else:
        return toJSON({'status':'bad request'},400)

我想下面的序列化函数是问题的根源..但不知道如何解决它..

def serial(objs):
    serialized = []
    for obj in objs:
        objs.append(obj.serialize())
    return serialized

def toJSON(objs, status=200):
    j = json.dumps(objs, ensure_ascii=False)
    return HttpResponse(j, status=status, content_type='application/json; charset=utf-8')

Answer 1

您的序列函数附加了错误的内容（objs而不是serialized）

def serial(objs):
    serialized = []
    for obj in objs:
        objs.append(obj.serialize())
    return serialized

应该是

def serial(objs):
    serialized = []
    for obj in objs:
        serialized.append(obj.serialize())
    return serialized

'QuerySet'对象没有属性'append'

1 个答案: