Could be very useful possibility to manage permissions directly from ORM

Sometimes, an entity can have a common part and a private part. It depends by who is watching.
i.e:
on a forum, a message have its title, its content and so on, but it could be a status too, i.e. read or unread, answered or other. these attributes are strictly dependendent on who is watching.

Requested feature is:
A user can attach a group of private arguments to reasource in order to extends ORM objects by final user's point of view

Sometimes is very useful have some computed properties built on top of models.
A useful procedure is a decoration on model in order to define new properties.
buildhandlers will do it
You can define a decorator function who decorates models adding to it some useful features