fix: django connection settings (#1529)

files/models/media.py

@@ -10,7 +10,7 @@ from django.conf import settings
 from django.contrib.postgres.indexes import GinIndex
 from django.contrib.postgres.search import SearchVectorField
 from django.core.files import File
-from django.db import models
+from django.db import models, transaction
 from django.db.models import Func, Value
 from django.db.models.signals import m2m_changed, post_delete, post_save, pre_delete
 from django.dispatch import receiver
@@ -536,7 +536,9 @@ class Media(models.Model):
 
         from .. import tasks
 
-        tasks.produce_sprite_from_video.delay(self.friendly_token)
+        # Defer until the surrounding transaction commits so the worker can
+        # actually find the Media row. Runs immediately if not in a tx.
+        transaction.on_commit(lambda token=self.friendly_token: tasks.produce_sprite_from_video.delay(token))
         return True
 
     def encode(self, profiles=[], force=True, chunkize=True):

files/views/media.py

@@ -660,7 +660,9 @@ class MediaBulkUserActions(APIView):
 
             # Prioritize category_uids
             if category_uids:
-                categories = Category.objects.filter(uid__in=category_uids)
+                requested = Category.objects.filter(uid__in=category_uids)
+                allowed_ids = [cat.id for cat in requested if not cat.is_rbac_category or request.user.has_contributor_access_to_category(cat)]
+                categories = Category.objects.filter(id__in=allowed_ids)
             elif lti_context_id:
                 # Filter categories by lti_context_id and ensure they ARE RBAC categories
                 potential_categories = Category.objects.filter(lti_context_id=lti_context_id, is_rbac_category=True)
@@ -691,9 +693,11 @@ class MediaBulkUserActions(APIView):
             if not category_uids:
                 return Response({"detail": "category_uids is required for remove_from_category action"}, status=status.HTTP_400_BAD_REQUEST)
 
-            categories = Category.objects.filter(uid__in=category_uids)
+            requested = Category.objects.filter(uid__in=category_uids)
+            allowed_ids = [cat.id for cat in requested if not cat.is_rbac_category or request.user.has_contributor_access_to_category(cat)]
+            categories = Category.objects.filter(id__in=allowed_ids)
             if not categories:
-                return Response({"detail": "No matching categories found"}, status=status.HTTP_400_BAD_REQUEST)
+                return Response({"detail": "No matching categories found or access denied"}, status=status.HTTP_400_BAD_REQUEST)
 
             removed_count = 0
             for category in categories: