Improve time-related stuff

Add created_at to all models
Add modified_at to Session
Get rid of custom now() function
Make sure aware datetime is used everywhere

games/migrations/0031_device_created_at_edition_created_at_game_created_at_and_more.py

@@ -0,0 +1,44 @@
+# Generated by Django 4.1.5 on 2023-11-15 13:51
+
+from django.db import migrations, models
+import django.utils.timezone
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("games", "0030_alter_purchase_name"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="device",
+            name="created_at",
+            field=models.DateTimeField(default=django.utils.timezone.now),
+        ),
+        migrations.AddField(
+            model_name="edition",
+            name="created_at",
+            field=models.DateTimeField(default=django.utils.timezone.now),
+        ),
+        migrations.AddField(
+            model_name="game",
+            name="created_at",
+            field=models.DateTimeField(default=django.utils.timezone.now),
+        ),
+        migrations.AddField(
+            model_name="platform",
+            name="created_at",
+            field=models.DateTimeField(default=django.utils.timezone.now),
+        ),
+        migrations.AddField(
+            model_name="purchase",
+            name="created_at",
+            field=models.DateTimeField(default=django.utils.timezone.now),
+        ),
+        migrations.AddField(
+            model_name="session",
+            name="created_at",
+            field=models.DateTimeField(default=django.utils.timezone.now),
+        ),
+    ]

games/migrations/0032_alter_session_options_session_modified_at_and_more.py

@@ -0,0 +1,52 @@
+# Generated by Django 4.1.5 on 2023-11-15 18:02
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ("games", "0031_device_created_at_edition_created_at_game_created_at_and_more"),
+    ]
+
+    operations = [
+        migrations.AlterModelOptions(
+            name="session",
+            options={"get_latest_by": "timestamp_start"},
+        ),
+        migrations.AddField(
+            model_name="session",
+            name="modified_at",
+            field=models.DateTimeField(auto_now=True),
+        ),
+        migrations.AlterField(
+            model_name="device",
+            name="created_at",
+            field=models.DateTimeField(auto_now_add=True),
+        ),
+        migrations.AlterField(
+            model_name="edition",
+            name="created_at",
+            field=models.DateTimeField(auto_now_add=True),
+        ),
+        migrations.AlterField(
+            model_name="game",
+            name="created_at",
+            field=models.DateTimeField(auto_now_add=True),
+        ),
+        migrations.AlterField(
+            model_name="platform",
+            name="created_at",
+            field=models.DateTimeField(auto_now_add=True),
+        ),
+        migrations.AlterField(
+            model_name="purchase",
+            name="created_at",
+            field=models.DateTimeField(auto_now_add=True),
+        ),
+        migrations.AlterField(
+            model_name="session",
+            name="created_at",
+            field=models.DateTimeField(auto_now_add=True),
+        ),
+    ]