From 4d9d5701e95672a98fa10562bbc001e3e7722688 Mon Sep 17 00:00:00 2001
From: Xuwznln <18435084+Xuwznln@users.noreply.github.com>
Date: Fri, 24 Oct 2025 02:56:07 +0800
Subject: [PATCH] use ordering to convert identifier to idx

---
 unilabos/ros/nodes/base_device_node.py | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/unilabos/ros/nodes/base_device_node.py b/unilabos/ros/nodes/base_device_node.py
index f2d40fe8..a2f51e7a 100644
--- a/unilabos/ros/nodes/base_device_node.py
+++ b/unilabos/ros/nodes/base_device_node.py
@@ -593,10 +593,9 @@ class BaseROS2DeviceNode(Node, Generic[T]):
                     site = additional_add_params.get("site", None)
                     spec = inspect.signature(parent_resource.assign_child_resource)
                     if "spot" in spec.parameters:
-                        converter_func = getattr(plr_resource, "_parse_identifier_to_indices")
-                        if callable(converter_func):
-                            site = converter_func(site, 0)
-                            self.lab_logger().info(f"物料{plr_resource}转换挂载位置site: {site}")
+                        ordering_dict: Dict[str, Any] = getattr(plr_resource, "_ordering")
+                        if ordering_dict:
+                            site = list(ordering_dict.keys()).index(site)
                         additional_params["spot"] = site
                     old_parent = plr_resource.parent
                     if old_parent is not None: