Hello, I want to make my first app with seaside and a database, as database I use Postgres with the P3 driver of Glorp. So I have a class Customer with the instance variables. And  I have a Descriptorclass which takes care of the database. And  I want to make a class which holds the layout. But now I wonder if  I want to make a function that adds a customer from a form. Or a page where I display all customers  or details of a customer. Do I have to place them in the database layer and call that function or can I use the customer class for that. Regards, Roelof