TypeError：“通知”对象不可迭代

Posted 2023-02-23

【中文标题】TypeError：“通知”对象不可迭代

【英文标题】：TypeError: 'Notification' object is not iterable

【发布时间】：2018-01-20 22:12:14

【问题描述】：

我是 django 的新手。我遇到了一个错误“对象不可迭代”。 请帮帮我..

//view.py

class NotificationList(APIView):

    def get(self,request,user_id,format=None):

        noti = Notification.objects.filter(user_id=user_id)
        val=[]
        for n in noti:
            serializer = GetNotificationSerializer(n,many=True)
            in_id = serializer.data.get('interest_id') // this statement makes error

//serializer.py

class GetNotificationSerializer(serializers.Serializer):
      interest_id = serializers.PrimaryKeyRelatedField(queryset=Interest.objects.all())
      user_id = serializers.PrimaryKeyRelatedField(queryset=User.objects.all())
      article_id = serializers.PrimaryKeyRelatedField(queryset=Article.objects.all())
      status = serializers.IntegerField(required = True)

//model.py

class Notification(models.Model):
    interest_id = models.ForeignKey(Interest, on_delete=models.CASCADE)
    user_id = models.ForeignKey(User, on_delete=models.CASCADE)
    article_id = models.ForeignKey(Article, on_delete=models.CASCADE)
    status = models.IntegerField()

【问题讨论】：

把错误回溯

@JuanMiGabarron 我的错误回溯添加在下面

【参考方案1】：

删除许多 kwargs

serializer = GetNotificationSerializer(n,many=True)
#                                        ^^^

到

serializer = GetNotificationSerializer(n)
#                                     ^^^