[Zope] question: upload files to folder AND database

hello, is it possible to upload files in plone, using a form (like the form in plonelocalfolderNG) AND sending a url to that file + additional information to a database using popy connection? I can upload files using plonelocalfolderNG, but I can't send any more info with it. + I need to sort them, so I need some more info (like category, author, ...) in a database to perform my sql on. also, I want to let users upload using a form, not with the add tab button. I tried watching the plonelocalfolderNG code, and making my own, but I can't get it to work. thanx in advance, Olivier