fix(iteration): handle empty iterator gracefully (#9565)

2024-10-21 20:16:46 +08:00 · 2024-10-21 20:16:46 +08:00 · 5459d812e7
parent 831c222541
commit 5459d812e7
1 changed files with 9 additions and 0 deletions
--- a/api/core/workflow/nodes/iteration/iteration_node.py
+++ b/api/core/workflow/nodes/iteration/iteration_node.py
@ -46,6 +46,15 @@ class IterationNode(BaseNode[IterationNodeData]):
        if not iterator_list_segment:
            raise ValueError(f"Iterator variable {self.node_data.iterator_selector} not found")

+        if len(iterator_list_segment.value) == 0:
+            yield RunCompletedEvent(
+                run_result=NodeRunResult(
+                    status=WorkflowNodeExecutionStatus.SUCCEEDED,
+                    outputs={"output": []},
+                )
+            )
+            return
+
        iterator_list_value = iterator_list_segment.to_object()

        if not isinstance(iterator_list_value, list):