Question

我在其中一个视图中遇到（RelatedObjectDoesNotExist：UserProfile没有站点）错误但我能够在管理员中执行所有CRUD操作而没有任何错误。

django.db.models.fields.related_descriptors.RelatedObjectDoesNotExist: UserProfile has no site.

摘自models.py

 class Sites(models.Model):
     name = models.CharField(max_length=255, blank=True, null=True)
     active = models.NullBooleanField()
     created_at = models.DateTimeField(blank=True, null=True)
     updated_at = models.DateTimeField(blank=True, null=True)
     logo_file_name = models.CharField(max_length=255, blank=True, null=True)
     logo_content_type = models.CharField(max_length=255, blank=True, null=True)
     logo_file_size = models.IntegerField(blank=True, null=True)
     logo_updated_at = models.DateTimeField(blank=True, null=True)
     logo_path = models.CharField(max_length=255, blank=True, null=True)
     account_type = models.CharField(max_length=255, blank=True, null=True)

     def __str__(self):
         site_str = 'id = {}, name = {}'.format(self.id, self.name)
         return site_str

     class Meta:
         managed = True
         db_table = 'sites'


 class UserProfile(models.Model):
     user = models.OneToOneField(settings.AUTH_USER_MODEL,
                                 on_delete=models.CASCADE)
     site = models.ForeignKey(Sites)

     def __str__(self):
         user_profile_str = '{}: {}'.format(self.user.username, str(self.site))
         return user_profile_str

摘录表单views.py

 @login_required
 def client_list(request):
     user_profile = UserProfile(user=request.user)
     print(user_profile.user.username)
     clients = Clients.objects.filter(site_rec=user_profile.site)
     return render(request, 'snapreport/clients/all_clients.html', {'clients': clients})

Answer 1

在此行中：user_profile = UserProfile(user=request.user)您正在为该用户创建新的UserProfile。由于您没有为网站指定网站，user_profile.site为None（或尝试访问该网站会引发RelatedObjectDoesNotExist）。

你可能想要：

user_profile = UserProfile.objects.get(user=request.user)

如果配置文件已经存在（假设它将具有site）。

Django：在视图中的RelatedObjectDoesNotExist但在Admin中工作正常

1 个答案: