Hi all,
I am looking for a way to append a child to a tree like structure. I
am using adjacency to represent the tree.
Let's say I have a relationship configured with:
children = relationship(TreeNode,
primaryjoin = "TreeNode.id ==
TreeNode.parent_id",
backref = backref( "parent",
remote_side=[TreeNode.id]),
cascade = "all, delete-orphan",
use_list = True)
and I do:
t1 = TreeNode()
t2 = TreeNode(parent = t1)
t3 = TreeNode(parent = t2)
then i can set:
t1.parent = t3,
without problem, but:
t3.children.append(t1)
gives a CircularDependencyError, while i would like this to give the
same result as t1.parent = t3, perhaps by altering the behaviour of
Treenode.children.append.
Am I missing something?
Is there some way to arrange for this?
Cheers, Lars
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