禁止保存（）以防止由于未保存的相关对象'team'而导致数据丢失

Question

当我创建新的团队并试图将其关联到我的用户配置文件时，我发现这个错误正在显示。我想要一个团队，很多成员和只有一个创建者（或管理的团队），创建者也是小组的成员。如何将团队与用户配置文件关联？

models.py

class Profile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    steam_id = models.IntegerField(unique=True, null=True)
    steam_name = models.CharField(max_length=255, null=True, unique=True)
    profile_pic = models.ImageField(upload_to='profile_images', default='profile_images/default_user.png', blank=True)
    rank = models.IntegerField(default=1)
    matches = models.IntegerField(default=0)
    kda = models.IntegerField(default=0)
    team = models.ForeignKey(Team, related_name='players', on_delete=models.CASCADE, null=True)

class Team(models.Model):
    creator = models.ForeignKey(User, related_name='teams', on_delete=models.CASCADE)
    name = models.CharField(max_length=20, unique=True)
    rank = models.IntegerField(default=0)

views.py

class TeamsCreateView(generic.CreateView):
    model = Team
    form_class = TeamCreationForm

    def form_valid(self, form):
        form.instance.creator = self.request.user
        self.request.user.profile.team = form.instance
        print(form.instance)
        print(self.request.user.profile.team)
        self.request.user.profile.save()
        return super().form_valid(form)

Answer 1

之所以出现此错误，是因为您需要首先保存团队实例，然后在form.instance.creator=self.request.user调用form.instance.save()之后保存配置文件实例