+class ServiceUser(models.Model):
+ service = models.ForeignKey(Service, on_delete=models.CASCADE)
+ user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
+
+
+class ServiceGroup(models.Model):
+ service = models.ForeignKey(Service, on_delete=models.CASCADE)
+ group = models.ForeignKey('auth.Group', on_delete=models.CASCADE)
+
+