GAE is a NoSQL database http://en.wikipedia.org/wiki/NoSQL
but you can use a field where you can store a list of ids (one to many relation denormalized) http://web2py.com/book/default/chapter/06#Many-to-Many,-list:<type>,-and-contains
GAE is a NoSQL database http://en.wikipedia.org/wiki/NoSQL
but you can use a field where you can store a list of ids (one to many relation denormalized) http://web2py.com/book/default/chapter/06#Many-to-Many,-list:<type>,-and-contains