[Zope] populating form values from a sql method

[Erik Myllymaki]

A users starts with a blank form.

She fills in some field values, slects some values form pull-downs.

Submits the form which adds a new record into a database.

Later, the user wants to update that infomation (or input a NEW record but
use that info as a template).

What is the cleanest way to pull up that form with the fields already
containing the data from that database record?

Is there a product that is close to this? Formulator?

TIA