Accessing objects with OneToOne relationship to a model in Django

Question

I have the following models, which are dependent on django.contrib.auth.models.User .

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

class Teacher(models.Model):
    user = models.OneToOneField(User, related_name='teacher')
    ...

class Student(models.Model):
    user = models.OneToOneField(User, related_name='student')
    ...

How can I get a QuerySet of User objects who are related to Teacher ?

Answer 1

User.objects.exclude(teacher=None)