I've just spent the last couple of hours trying to figure out why my DataObject->write call doesn't write to the database. I narrowed to problem to the write method, it looks like when trying to get which table to write to it doesn't work. When checking ancestry and has_own_table it failed. It has never happend before so I guessed it had to do with something in my class name. I changed it from GDText to GdText and suddenly everything works like a charm.

I haven't had time to figure out exactly why this happens yet. Is it something I've missed in the documentation about naming classes or is it something else?

Looks like I hade a subfolder in code that had a class with that same name.