backup before mayor changes

nonpacks/library/models.py

@@ -4,6 +4,7 @@ import uuid
 from django.conf import settings
 from django.db import models
 from django.urls import reverse
+from django.utils import timezone
 
 
 def slugify_tag(value):
@@ -374,8 +375,17 @@ class Comment(models.Model):
         settings.AUTH_USER_MODEL, on_delete=models.CASCADE, related_name='comments',
     )
     body = models.TextField()
-    created_at = models.DateTimeField(auto_now_add=True)
-    updated_at = models.DateTimeField(auto_now=True)
+    created_at = models.DateTimeField(default=timezone.now)
+    updated_at = models.DateTimeField(default=timezone.now)
+
+    def save(self, *args, **kwargs):
+        if self._state.adding:
+            now = timezone.now()
+            self.created_at = now
+            self.updated_at = now
+        else:
+            self.updated_at = timezone.now()
+        super().save(*args, **kwargs)
 
     def __str__(self):
         return f'{self.user.username} on {self.project.slug}: {self.body[:40]}'