Hi Jun,
Unfortunately, my package was written before I understood or even appreciated the object system, so it's not integrated at all and therefore of limited value.
But it does store lots of extra meta-data for table columns such as foreign key data (which it uses to generate dropdowns), SQL statements (also for drop-downs), info for including fields in search/edit/add forms, column sort orders, other stuff I can't remember. Perhaps some ideas would apply to the oacs attribute system, especially for the admin UI.
But perhaps, in the end, this idea is of limited value in the world of real applications. But it sure does sound good! =)
