Hi Ben,
You have two options here, either of which would appear to suit your
situation very well:
1) Use App Engine's built in support for parent entities and entity groups.
When creating a node, pass the parent= argument to the constructor, passing
the key or model instance of the parent node. A
Hi Nick,
I'm faced with a similar question as the original poster and can
provide additional details on the nature of the tree and operations in
my case, as you request below. I'm hoping this will make it possible
for you to help me out.
Yes, I would like tree modifications to be wrapped in trans
The best way to do this depends on the nature of the tree, and what
sort of operations you need to do on it.
If you need transaction support and will do less than about 1QPS of
updates to the entire tree, you could use the datastore's built in
Ancestor model - construct entities with the 'parent'
