[Catalyst] how to authenticate using database users

[Adam Witney]

Hi,

Our database uses actual database users rather than a table containing  
usernames and password. How would I authenticate against the database  
itself? The examples I have come across in the Tutorial and various  
Catalyst::Authentication::* modules all seem to require the presence  
of a table containing username and password fields.

I guess I could write my own authenticate method that performed a  
manual dbh connection somehow... but I was wondering if there was a  
more standard/recommended way to do this?

thanks for any help

adam