I use Dancer::Plugin::Database in my application. Each time when 

$dbh = DBI->connect( $c->{ dsn }, $c->{ username }, $c->{ password}, $c->{ dbi_params }) 

is called. does it return a new connection?

I would like one db connection for each user, where can I save the database handler?

I try to save in session, but it doesn't work. Is session can only save string, but not object?

Many thanks,

Dan