perf: 优化创建子节点时锁置后

apps/assets/api/tree.py

@@ -39,7 +39,6 @@ class NodeChildrenApi(generics.ListCreateAPIView):
         self.instance = self.get_object()
 
     def perform_create(self, serializer):
-        with NodeAddChildrenLock(self.instance):
         data = serializer.validated_data
         _id = data.get("id")
         value = data.get("value")
@@ -49,6 +48,7 @@ class NodeChildrenApi(generics.ListCreateAPIView):
                 raise JMSException(_('The same level node name cannot be the same'))
         else:
             value = self.instance.get_next_child_preset_name()
+        with NodeAddChildrenLock(self.instance):
             node = self.instance.create_child(value=value, _id=_id)
             # 避免查询 full value
             node._full_value = node.value