'Keyerror at /' 在列表视图的查询集中传递带有主键的用户时

Question

models.py

class Notes(models.Model):
    author = models.ForeignKey(User, on_delete=models.CASCADE)
    title = models.CharField(max_length=100)
    content = models.TextField()
    date_added = models.DateTimeField(default=timezone.now)

views.py

class HomepageView(ListView):
    model = Notes
    template_name = "home.html"

    def get_queryset(self):
        return Notes.objects.filter(Q(author=self.kwargs['pk']))

提示pk有KeyError，请问有什么办法可以解决吗提前致谢...!

Answer 1

self.kwargs 包含 URL 路径中的参数。所以在你的 urls.py 中，你应该定义如下内容：

# urls.py

from app.views import HomePageView

urlpatterns = [
    path('<b><int:pk></b>/', HomePageView.as_view()),
]

然后您可以使用有效的主键访问该页面，例如 /14 如果 14 是 User 的有效主键。

如果您想使用登录用户，您应该使用self.request.user：

# in case you want to use the logged in user

django.views.generic.list import ListView
from django.contrib.auth.mixins import LoginRequiredMixin

class HomepageView(LoginRequired, ListView):
    model = Notes
    template_name = 'home.html'

    def get_queryset(self):
        return Notes.objects.filter(author=self.request.user)

Note: it might be better to use get_user_model [Django-doc] to point to the user model, since if you later change the user model, altering the foreign keys will be easier.

Note: You might want to consider using a DateTimeField(auto_now_add=True) instead of the models.DateTimeField(default=timezone.now), since that will make the field non-editable, etc.

'Keyerror at /' 在列表视图的查询集中传递带有主键的用户时

'Keyerror at /' when passing user with primary key in queryset for a listview

python

django

listview

django-queryset

django-related-manager