Django尝试，除了和ObjectDoesNotExist

Question

为了继续我的代码，我正在尝试实现三条打印消息中的一条。现在我一直在接受

RelatedObjectDoesNotExist用户没有ambassador_profile。

我真正期望的是打印(“无amb配置文件”)。有人知道我在这里做错了什么吗？

views.py

   user = request.user

        try:
            ambassador = user.ambassador_profile
            selected_event = get_object_or_404(Event, slug=event, organizer__slug=organizer)
            connected_events = ambassador.events.all()
            if selected_event in connected_events:
                print("You have an ambassador profile and you are connected.")
            else:
                print("You are not connected.")
        except user.ambassador_profile.ObjectDoesNotExist:
            print("No amb profile")

models.py

class AmbassadorProfile(models.Model):
    slug = models.CharField(
        max_length=10,
        unique=True,
    )
    user = models.OneToOneField(
        User,
        on_delete=models.CASCADE,
        related_name='ambassador_profile',
    )

Answer 1

看起来您的用户不存在。试试这个：

        try:
            ambassador = user.ambassador_profile
            selected_event = get_object_or_404(Event, slug=event, organizer__slug=organizer)
            connected_events = ambassador.events.all()
            if selected_event in connected_events:
                print("You have an ambassador profile and you are connected.")
            else:
                print("You are not connected.")
        except user.DoesNotExist, user.ambassador_profile.ObjectDoesNotExist:
            print("No amb profile")

Answer 2

真正解决问题的方法是将except user.ambassador_profile.ObjectDoesNotExist:改为except AmbassadorProfile.DoesNotExist: