search for: instansobject

I want to create a object then store it in the session, then if the user chooses to save it, its saved in the database. I have a Configuration model of which I store instansobject of in the session. Now I also want to store the object in the database. How can I make this possible? In the Configuration model I have a lot of variables and methods, but maybe its just to make the Configuration model into a ActiveRecord model and have databas columns that has the same name as t...