[Update] 优化节点删除 API，添加删除失败原因

apps/assets/api/node.py

@@ -13,7 +13,7 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from rest_framework import generics
+from rest_framework import generics, status
 from rest_framework.serializers import ValidationError
 from rest_framework.views import APIView
 from rest_framework.response import Response
@@ -59,6 +59,16 @@ class NodeViewSet(OrgModelViewSet):
             raise ValidationError({"error": msg})
         return super().perform_update(serializer)
 
+    def destroy(self, request, *args, **kwargs):
+        node = self.get_object()
+        if node.has_children_or_contains_assets():
+            msg = _("Deletion failed "
+                    "and the node contains children or assets")
+            return Response(
+                data={'msg': msg}, status=status.HTTP_500_INTERNAL_SERVER_ERROR
+            )
+        return super().destroy(request, *args, **kwargs)
+
 
 class NodeListAsTreeApi(generics.ListAPIView):
     """

apps/assets/models/node.py

@@ -470,8 +470,13 @@ class Node(OrgModelMixin, SomeNodesMixin, TreeMixin, FamilyMixin, FullValueMixin
         tree_node = TreeNode(**data)
         return tree_node
 
-    def delete(self, using=None, keep_parents=False):
+    def has_children_or_contains_assets(self):
         if self.children or self.get_assets():
+            return True
+        return False
+
+    def delete(self, using=None, keep_parents=False):
+        if self.has_children_or_contains_assets():
             return
         return super().delete(using=using, keep_parents=keep_parents)