Аутентификация и кто и когда создал

dbapp/mainapp/signals.py

@@ -0,0 +1,11 @@
+from django.db.models.signals import post_save
+from django.dispatch import receiver
+from django.contrib.auth.models import User
+from .models import CustomUser
+
+
+@receiver(post_save, sender=User)
+def create_or_update_user_profile(sender, instance, created, **kwargs):
+    if created:
+        CustomUser.objects.create(user=instance)
+    instance.customuser.save()