Handle non-integer values

Author: malwilley

src/sentry/workflow_engine/endpoints/organization_detector_index.py

@@ -227,7 +227,7 @@ def filter_detectors(self, request: Request, organization: Any) -> QuerySet[Dete
                             if isinstance(filter.value.value, list)
                             else [filter.value.value]
                         )
-                        workflow_ids = [int(v) for v in workflow_ids]
+                        workflow_ids = to_valid_int_id_list("workflow", workflow_ids)
                         if filter.operator in ("!=", "NOT IN"):
                             queryset = queryset.exclude(
                                 detectorworkflow__workflow_id__in=workflow_ids

tests/sentry/workflow_engine/endpoints/test_organization_detector_index.py

@@ -560,6 +560,13 @@ def test_query_by_workflow(self) -> None:
         assert detector_a.name not in returned_names
         assert detector_b.name not in returned_names
 
+    def test_query_by_workflow_invalid_value(self) -> None:
+        self.get_error_response(
+            self.organization.slug,
+            qs_params={"project": self.project.id, "query": "workflow:abc"},
+            status_code=400,
+        )
+
     def test_query_by_assignee_user_email(self) -> None:
         user = self.create_user(email="assignee@example.com")
         self.create_member(organization=self.organization, user=user)