Casey Duncan wrote:

Chris Withers wrote:

...

if self.data is a BTree and I do:

obj = self.data[id] obj.revsub = obj.revsub + 1

AFAIK _p_changed is only needed when you change a mutable attribute you want stored like adding a dict key or appending to a list. revsub looks like an int which is not mutable. The persistance machinery should pick up on this change automagically.

Thanks, I had thought that maybe changing obj (which is stored in a dictionary-like thing) might have an effect that needed self._p_changed, but I found stupid programmer error was actually the cause *grinz* Chris