add update date to SithFile model

core/admin.py

@@ -99,7 +99,7 @@ class PageAdmin(admin.ModelAdmin):
 
 @admin.register(SithFile)
 class SithFileAdmin(admin.ModelAdmin):
-    list_display = ("name", "owner", "size", "date", "is_in_sas")
+    list_display = ("name", "owner", "size", "created_at", "is_in_sas")
     autocomplete_fields = ("parent", "owner", "moderator")
     search_fields = ("name", "parent__name")
 

core/migrations/0050_alter_sithfile_moderator.py

@@ -0,0 +1,55 @@
+# Generated by Django 5.2.12 on 2026-05-01 08:59
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+from django.db.migrations.state import StateApps
+from django.db.models import F
+
+
+def set_updated_at(apps: StateApps, schema_editor):
+    SithFile = apps.get_model("core", "SithFile")
+    SithFile.objects.update(updated_at=F("created_at"))
+
+
+class Migration(migrations.Migration):
+    dependencies = [("core", "0049_user_whitelisted_users")]
+
+    operations = [
+        migrations.AlterField(
+            model_name="sithfile",
+            name="moderator",
+            field=models.ForeignKey(
+                blank=True,
+                null=True,
+                on_delete=django.db.models.deletion.SET_NULL,
+                related_name="moderated_files",
+                to=settings.AUTH_USER_MODEL,
+                verbose_name="owner",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="sithfile",
+            name="owner",
+            field=models.ForeignKey(
+                on_delete=django.db.models.deletion.PROTECT,
+                related_name="owned_files",
+                to=settings.AUTH_USER_MODEL,
+                verbose_name="owner",
+            ),
+        ),
+        migrations.RenameField(
+            model_name="sithfile", old_name="date", new_name="created_at"
+        ),
+        migrations.AlterField(
+            model_name="sithfile",
+            name="created_at",
+            field=models.DateTimeField(auto_now_add=True, verbose_name="created at"),
+        ),
+        migrations.AddField(
+            model_name="sithfile",
+            name="updated_at",
+            field=models.DateTimeField(auto_now=True, verbose_name="updated at"),
+        ),
+        migrations.RunPython(set_updated_at, reverse_code=migrations.RunPython.noop),
+    ]

core/models.py

@@ -853,7 +853,7 @@ class SithFile(models.Model):
         User,
         related_name="owned_files",
         verbose_name=_("owner"),
-        on_delete=models.CASCADE,
+        on_delete=models.PROTECT,
     )
     edit_groups = models.ManyToManyField(
         Group, related_name="editable_files", verbose_name=_("edit group"), blank=True
@@ -864,7 +864,8 @@ class SithFile(models.Model):
     is_folder = models.BooleanField(_("is folder"), default=True, db_index=True)
     mime_type = models.CharField(_("mime type"), max_length=30)
     size = models.IntegerField(_("size"), default=0)
-    date = models.DateTimeField(_("date"), default=timezone.now)
+    created_at = models.DateTimeField(_("created at"), auto_now_add=True)
+    updated_at = models.DateTimeField(_("updated at"), auto_now=True)
     is_moderated = models.BooleanField(_("is moderated"), default=False)
     moderator = models.ForeignKey(
         User,
@@ -872,7 +873,7 @@ class SithFile(models.Model):
         verbose_name=_("owner"),
         null=True,
         blank=True,
-        on_delete=models.CASCADE,
+        on_delete=models.SET_NULL,
     )
     asked_for_removal = models.BooleanField(_("asked for removal"), default=False)
     is_in_sas = models.BooleanField(

sas/admin.py

@@ -20,7 +20,7 @@ from sas.models import Album, PeoplePictureRelation, Picture, PictureModerationR
 
 @admin.register(Picture)
 class PictureAdmin(admin.ModelAdmin):
-    list_display = ("name", "parent", "date", "size", "is_moderated")
+    list_display = ("name", "parent", "created_at", "size", "is_moderated")
     search_fields = ("name",)
     autocomplete_fields = ("owner", "parent", "edit_groups", "view_groups", "moderator")
 
@@ -33,7 +33,7 @@ class PeoplePictureRelationAdmin(admin.ModelAdmin):
 
 @admin.register(Album)
 class AlbumAdmin(admin.ModelAdmin):
-    list_display = ("name", "parent", "date", "owner", "is_moderated")
+    list_display = ("name", "parent", "created_at", "owner", "is_moderated")
     search_fields = ("name",)
     autocomplete_fields = ("owner", "parent", "edit_groups", "view_groups")
 

sas/api.py

@@ -96,7 +96,7 @@ class PicturesController(ControllerBase):
         return (
             filters.filter(Picture.objects.viewable_by(user))
             .distinct()
-            .order_by("-parent__date", "date")
+            .order_by("-parent__created_at", "created_at")
             .select_related("owner", "parent")
         )
 

sas/schemas.py

@@ -59,8 +59,8 @@ class AlbumAutocompleteSchema(ModelSchema):
 
 
 class PictureFilterSchema(FilterSchema):
-    before_date: Annotated[datetime | None, FilterLookup("date__lte")] = None
-    after_date: Annotated[datetime | None, FilterLookup("date__gte")] = None
+    before_date: Annotated[datetime | None, FilterLookup("created_at__lte")] = None
+    after_date: Annotated[datetime | None, FilterLookup("created_at__gte")] = None
     users_identified: Annotated[
         set[int] | None, FilterLookup("people__user_id__in")
     ] = None
@@ -70,7 +70,15 @@ class PictureFilterSchema(FilterSchema):
 class PictureSchema(ModelSchema):
     class Meta:
         model = Picture
-        fields = ["id", "name", "date", "size", "is_moderated", "asked_for_removal"]
+        fields = [
+            "id",
+            "name",
+            "created_at",
+            "updated_at",
+            "size",
+            "is_moderated",
+            "asked_for_removal",
+        ]
 
     owner: UserProfileSchema
     sas_url: str