Fix: Correct file variable handling for custom tools in workflow (#18427)

This commit is contained in:
liujin-patsnap
2025-08-02 03:36:04 +08:00
committed by GitHub
parent a4b14fc992
commit bc18d4d1b9

View File

@@ -318,6 +318,33 @@ class ToolNode(BaseNode):
json.append(message.message.json_object) json.append(message.message.json_object)
elif message.type == ToolInvokeMessage.MessageType.LINK: elif message.type == ToolInvokeMessage.MessageType.LINK:
assert isinstance(message.message, ToolInvokeMessage.TextMessage) assert isinstance(message.message, ToolInvokeMessage.TextMessage)
if message.meta:
transfer_method = message.meta.get("transfer_method", FileTransferMethod.TOOL_FILE)
else:
transfer_method = FileTransferMethod.TOOL_FILE
tool_file_id = message.message.text.split("/")[-1].split(".")[0]
with Session(db.engine) as session:
stmt = select(ToolFile).where(ToolFile.id == tool_file_id)
tool_file = session.scalar(stmt)
if tool_file is None:
raise ToolFileError(f"Tool file {tool_file_id} does not exist")
mapping = {
"tool_file_id": tool_file_id,
"type": file_factory.get_file_type_by_mime_type(tool_file.mimetype),
"transfer_method": transfer_method,
"url": message.message.text,
}
file = file_factory.build_from_mapping(
mapping=mapping,
tenant_id=self.tenant_id,
)
files.append(file)
stream_text = f"Link: {message.message.text}\n" stream_text = f"Link: {message.message.text}\n"
text += stream_text text += stream_text
yield RunStreamChunkEvent(chunk_content=stream_text, from_variable_selector=[node_id, "text"]) yield RunStreamChunkEvent(chunk_content=stream_text, from_variable_selector=[node_id, "text"])