我正在尝试显示分配给“个人资料”的“统计信息”列表,这些信息扩展了用户模型。我有一个ForeignKey将Stat与简档相关联。但是,我需要它才能工作,因此用户无需登录,因此他们可以与不是该站点成员的用户共享进度。
我正在尝试将_set用于ForeignKey上的向后关系。我认为它的绊倒是因为'Stat'模型和'Profile'模型在不同的应用程序中。这会导致这个问题吗?代码如下:
class Stat(models.Model):
user = models.ForeignKey(User, default=False)
image = CloudinaryField('image', default="thumbnail_mqe6ne", blank=True)
class Profile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
//个人资料视图
def profile_item(request, id):
p = Profile.objects.get(id=7)
user_stats = p.stat_set.all()
context = {
"p": p,
"user_stats": user_stats,
}
return render(request,"profile/profile_share.html", context)
我收到的观点:
'Profile' object has no attribute 'stat_set'
据我所知,使用向后引用时,您需要以小写形式指定要定位的模型。下面的完整堆栈跟踪:
环境:
请求方法:GET 请求网址:http://localhost:8000/profile/7/
Django Version: 1.10
Python Version: 2.7.14
Installed Applications:
['django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.sites',
'stats',
'home',
'blog',
'challenge',
'haystack',
'ckeditor_uploader',
'ckeditor',
'django_cron',
'anymail',
'templated_email',
'django_social_share',
'sorl.thumbnail',
'storages',
'django.contrib.staticfiles',
'cloudinary_storage',
'cloudinary',
'debug_toolbar',
'django_cleanup',
'django_instagram',
'embed_video',
'easy_thumbnails',
'filer',
'reversion',
'bootstrap3',
'rest_framework',
'meta',
'import_export',
'allauth',
'allauth.account',
'allauth.socialaccount',
'allauth.socialaccount.providers.facebook']
Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'whitenoise.middleware.WhiteNoiseMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware',
'solid_i18n.middleware.SolidLocaleMiddleware',
'debug_toolbar.middleware.DebugToolbarMiddleware',
'django.middleware.locale.LocaleMiddleware']
Traceback:
File "/vagrant/bodymakeover/local/lib/python2.7/site-packages/django/core/handlers/exception.py" in inner
39. response = get_response(request)
File "/vagrant/bodymakeover/local/lib/python2.7/site-packages/django/core/handlers/base.py" in _legacy_get_response
249. response = self._get_response(request)
File "/vagrant/bodymakeover/local/lib/python2.7/site-packages/django/core/handlers/base.py" in _get_response
187. response = self.process_exception_by_middleware(e, request)
File "/vagrant/bodymakeover/local/lib/python2.7/site-packages/django/core/handlers/base.py" in _get_response
185. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/vagrant/bodymakeover/home/views.py" in profile_item
117. user_stats = p.stat_set.all()
Exception Type: AttributeError at /profile/7/
Exception Value: 'Profile' object has no attribute 'stat_set'
非常感谢。
答案 0 :(得分:3)
Profile
和Stat
彼此无关 - 它们都与User
相关。您应该从User
模型执行此反向查找,或者创建从Stat
到Profile
的ForeignKey关系。
答案 1 :(得分:2)
p = Profile.objects.get(id=7)
user_stats = p.user.stat_set.all()