Аутентификация и кто и когда создал

dbapp/mainapp/models.py

@@ -3,6 +3,7 @@ from django.contrib.auth.models import User
 from django.contrib.gis.db import models as gis
 from django.contrib.gis.db.models import functions
 from django.db.models import F, ExpressionWrapper
+from django.utils import timezone
 
 def get_default_polarization():
     obj, created = Polarization.objects.get_or_create(
@@ -113,8 +114,15 @@ class ObjItem(models.Model):
     # id_satellite = models.ForeignKey(Satellite, on_delete=models.PROTECT, related_name="objitems", verbose_name="Спутник")
     # id_vch_load = models.ForeignKey(Parameter, on_delete=models.CASCADE, related_name="objitems", verbose_name="ВЧ загрузка")
     # id_geo = models.ForeignKey(Geo, on_delete=models.CASCADE, related_name="objitems", verbose_name="Геоданные")
-    id_user_add = models.ForeignKey(CustomUser, on_delete=models.SET_NULL, related_name="objitems", verbose_name="Пользователь", null=True, blank=True)
+    # id_user_add = models.ForeignKey(CustomUser, on_delete=models.SET_NULL, related_name="objitems", verbose_name="Пользователь", null=True, blank=True)
     # id_source_type = models.ForeignKey(SourceType, on_delete=models.SET_NULL, related_name="objitems", verbose_name='Тип источника', null=True, blank=True)
+    
+    created_at = models.DateTimeField(auto_now_add=True, verbose_name="Дата создания")
+    created_by = models.ForeignKey(CustomUser, on_delete=models.SET_NULL, related_name="objitems_created", 
+                                   null=True, blank=True, verbose_name="Создан пользователем")
+    updated_at = models.DateTimeField(auto_now=True, verbose_name="Дата последнего изменения")
+    updated_by = models.ForeignKey(CustomUser, on_delete=models.SET_NULL, related_name="objitems_updated", 
+                                   null=True, blank=True, verbose_name="Изменен пользователем")
 
 
     def __str__(self):