- unit-of-work does a better check for "orphaned" objects that are

part of a "delete-orphan" cascade, for certain conditions where the
parent isnt available to cascade from.
- it is now invalid to declare a self-referential relationship with
"delete-orphan" (as the abovementioned check would make them impossible
to save)
- improved the check for objects being part of a session when the
unit of work seeks to flush() them as part of a relationship..

1 files changed, 1 insertions, 1 deletions

diff --git a/examples/adjacencytree/byroot_tree.py b/examples/adjacencytree/byroot_tree.py
index 6342b5f27..d19171051 100644
--- a/examples/adjacencytree/byroot_tree.py
+++ b/examples/adjacencytree/byroot_tree.py
@@ -127,7 +127,7 @@ mapper(TreeNode, trees, properties=dict(
     parent_id=trees.c.parent_node_id,
     root_id=trees.c.root_node_id,
     root=relation(TreeNode, primaryjoin=trees.c.root_node_id==trees.c.node_id, foreignkey=trees.c.node_id, lazy=None, uselist=False),
-    children=relation(TreeNode, primaryjoin=trees.c.parent_node_id==trees.c.node_id, lazy=None, uselist=True, cascade="delete,delete-orphan,save-update"),
+    children=relation(TreeNode, primaryjoin=trees.c.parent_node_id==trees.c.node_id, lazy=None, uselist=True, cascade="delete,save-update"),
     data=relation(mapper(TreeData, treedata, properties=dict(id=treedata.c.data_id)), cascade="delete,delete-orphan,save-update", lazy=False)
     
 ), extension = TreeLoader())