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我正在尝试设置一种在社交媒体类型的网站上添加朋友的方法,但是出了点问题,我不知道发生了什么。

这是我的模型:

class Friend(models.Model):
    #static variables for friend_status attribute
    FORMER_FRIENDS = 0
    FRIENDS = 1
    A_REQUESTS_B = 2
    B_REQUESTS_A = 3

    friend_A = models.ForeignKey(User, related_name='friend_A')
    friend_B = models.ForeignKey(User, related_name='friend_B')
    friend_status = models.IntegerField

    def __str__(self):
        return '%s and %s friendship' % (self.friend_A, self.friend_B)

    class Meta:
        unique_together = (('friend_A', 'friend_B'),)

这是我的网址:

 url(r'^friend_request/(?P<username>[\w.@+-]+)', AddFriend.as_view(), name = 'add_friend'),

这是我的基于类的视图:

class AddFriend(APIView):
def get(self, request, username):
    user = Token.objects.get(key='token string').user
    friend = User.objects.get(username=username)
    #check for friendship instance
    new_friend, created = Friend.get_or_create(friend_A=user, friend_B=friend)

当我尝试访问端点时,我得到以下输出:

DoesNotExist at /friend_request/brian
Token matching query does not exist.

事实证明,建立朋友关系比我预期的要困难得多。请指教。

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