fix(Node): Node 保存的时候，在信号里设置 parent_key

apps/assets/api/node.py

@@ -201,10 +201,8 @@ class NodeAddChildrenApi(generics.UpdateAPIView):
     def put(self, request, *args, **kwargs):
         instance = self.get_object()
         nodes_id = request.data.get("nodes")
-        children = [get_object_or_none(Node, id=pk) for pk in nodes_id]
+        children = Node.objects.filter(id__in=nodes_id)
         for node in children:
-            if not node:
-                continue
             node.parent = instance
         return Response("OK")
 

apps/assets/models/node.py

@@ -103,7 +103,7 @@ class FamilyMixin:
             if value is None:
                 value = child_key
             child = self.__class__.objects.create(
-                id=_id, key=child_key, value=value, parent_key=self.key,
+                id=_id, key=child_key, value=value
             )
             return child
 

apps/assets/signals_handler.py

@@ -4,7 +4,7 @@ from operator import add, sub
 
 from assets.utils import is_asset_exists_in_node
 from django.db.models.signals import (
-    post_save, m2m_changed, pre_delete, post_delete
+    post_save, m2m_changed, pre_delete, post_delete, pre_save
 )
 from django.db.models import Q, F
 from django.dispatch import receiver
@@ -37,6 +37,11 @@ def test_asset_conn_on_created(asset):
     test_asset_connectivity_util.delay([asset])
 
 
+@receiver(pre_save, sender=Node)
+def on_node_pre_save(sender, instance: Node, **kwargs):
+    instance.parent_key = instance.compute_parent_key()
+
+
 @receiver(post_save, sender=Asset)
 @on_transaction_commit
 def on_asset_created_or_update(sender, instance=None, created=False, **kwargs):