如何通过 'custom' 字段查询用户模型? (django.db.models.fields.related_descriptors.ReverseOneToOneDescriptor)

How to query User model by 'custom' fields? (django.db.models.fields.related_descriptors.ReverseOneToOneDescriptor)

我使用 account 应用扩展了用户模型。

模型帐户应用程序:

from django.db import models
from django.contrib.auth.models import User
from departments.models import Department

class Account(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    profile_pic = models.ImageField(upload_to='profile_pics', blank=True)
    department = models.ForeignKey(
        Department, on_delete=models.SET_NULL, null=True, related_name='department')

    def __str__(self):
        return self.user.username

现在我需要将同一部门的用户计数发送到我的模板...

查看:

from django.contrib.auth.models import User

@login_required
def home(request):
    context = {
        'title': 'Dashboard',
        'department_members':  'department_members': User.objects.filter(department=request.user.account.department).count(),
    }
    return render(request, 'app/dashboard.html', context)\

department_members 始终为 1,即使我在同一部门有更多用户。

我认为问题是 User 默认情况下没有 department 字段,所以我不能说 User.account.objects.filter(department=request.user.account.department)

我已经尝试了很多查询并查看了 django 文档,但我找不到关于如何检索此信息的正确方式。

有人遇到同样的问题吗?关于如何以更好的方式 debug/create 我的查询的任何提示?

提前致谢!

也许将 department_members 查询集更改为:

context = {
        'title': 'Dashboard',
        'department_members': Account.objects.filter(department=request.user.account.department).count() if hasattr(request.user, "account") else 0,
    }

解决了您的问题。