fix: filter cancel/remind-all querysets explicitly

ENT-8156 | Previous related change didn't include calls
to `self.filter_queryset()`.

enterprise_access/apps/api/v1/tests/test_assignment_views.py

@@ -1140,6 +1140,7 @@ def test_cancel_all_filter_multiple_learner_states(self):
                 [mock.call(assignment.uuid) for assignment in expected_cancelled_assignments],
                 any_order=True,
             )
+            assert mock_cancel_task.delay.call_count == len(expected_cancelled_assignments)
             for assignment in expected_cancelled_assignments:
                 assignment.refresh_from_db()
                 self.assertEqual(assignment.state, LearnerContentAssignmentStateChoices.CANCELLED)
@@ -1170,6 +1171,7 @@ def test_cancel_all_filter_single_learner_state(self):
                 [mock.call(assignment.uuid) for assignment in expected_cancelled_assignments],
                 any_order=True,
             )
+            assert mock_cancel_task.delay.call_count == len(expected_cancelled_assignments)
             for assignment in expected_cancelled_assignments:
                 assignment.refresh_from_db()
                 self.assertEqual(assignment.state, LearnerContentAssignmentStateChoices.CANCELLED)
@@ -1207,6 +1209,7 @@ def test_remind_all_filter_multiple_learner_states(self):
                 [mock.call(assignment.uuid) for assignment in expected_reminded_assignments],
                 any_order=True,
             )
+            assert mock_remind_task.delay.call_count == len(expected_reminded_assignments)
             for assignment in expected_reminded_assignments:
                 assignment.refresh_from_db()
                 self.assertEqual(assignment.state, LearnerContentAssignmentStateChoices.ALLOCATED)
@@ -1237,6 +1240,7 @@ def test_remind_all_filter_single_learner_state(self):
                 [mock.call(assignment.uuid) for assignment in expected_reminded_assignments],
                 any_order=True,
             )
+            assert mock_remind_task.delay.call_count == len(expected_reminded_assignments)
             for assignment in expected_reminded_assignments:
                 assignment.refresh_from_db()
                 self.assertEqual(assignment.state, LearnerContentAssignmentStateChoices.ALLOCATED)

enterprise_access/apps/api/v1/views/content_assignments/assignments_admin.py

@@ -237,13 +237,14 @@ def cancel_all(self, request, *args, **kwargs):
 
         ```
         Raises:
-            404 if any of the assignments were not found
+            404 if no cancelable assignments were found
             422 if any of the assignments threw an error (not found or not cancelable)
         ```
         """
-        assignments = self.get_queryset().filter(
+        base_queryset = self.get_queryset().filter(
             state__in=LearnerContentAssignmentStateChoices.CANCELABLE_STATES,
         )
+        assignments = self.filter_queryset(base_queryset)
         if not assignments:
             return Response(status=status.HTTP_404_NOT_FOUND)
 
@@ -320,13 +321,14 @@ def remind_all(self, request, *args, **kwargs):
 
         ```
         Raises:
-            404 if any of the assignments were not found
+            404 if no cancelable assignments were found
             422 if any of the assignments threw an error (not found or not remindable)
         ```
         """
-        assignments = self.get_queryset().filter(
+        base_queryset = self.get_queryset().filter(
             state__in=LearnerContentAssignmentStateChoices.REMINDABLE_STATES,
         )
+        assignments = self.filter_queryset(base_queryset)
         if not assignments:
             return Response(status=status.HTTP_404_NOT_FOUND)