Furthermore... what is the correct way to update an existing entity whose key contains an ancestor? What is the correct way to save a new entity with an auto generated id with an ancestor?
The post is about querying the DataStore, my questions are about persisting informations.
Hence... no, my question has not been answered!
How can you store an object using an ID (numerical) identifier? What if the key has ancestors? How can you store an entity as it is, without having to manually recreate it by hand every single time?