django – ‘dict’对象没有属性朋友

楷模

class FriendshipManager(models.Manager):

  def friends_for_user(self,user):
     friends = []
     for friendship in self.filter(from_user=user).select_related(depth=1):
        friends.append({"friend": friendship.to_user,"friendship": friendship})
     for friendship in self.filter(to_user=user).select_related(depth=1):
        friends.append({"friend": friendship.from_user,"friendship": friendship})
     return friends

模板标签

def render(self,context):
    user = self.user.resolve(context)
    num = self.num.resolve(context)

    my_friends = Friendship.objects.friends_for_user(user)

    potential_friends = []
    for friend in my_friends:
        potential_friends.append(Friendship.objects.friends_for_user(friend.friend))  //This line is the error.

    context[self.context_name] = potential_friends
    return ''