When writing a (Moose)? app that will require a database connection, how do you structure your class/leverage a CPAN module so that it has the $dbh it needs whether it was called as: 
my $object = Class->new(dbh => $dbh);

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or via 
my $object = Class->new(dsn => $dsn, user=>$user, pass=>$pass);

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The mantra of every experienced web application developer is the same: thou shalt separate business logic from display. Ironically, almost all template engines allow violation of this separation principle, which is the very impetus for HTML template engine development.

-- Terence Parr, "Enforcing Strict Model View Separation in Template Engines"

In reply to (Moose)? $dbh or DBI connection info - how to abstract by metaperl

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