package Moo::Role::DBIConnection {
    use Moo::Role;
    use DBI;

    has 'dbh' => (
        is       => 'ro',
        required => 1,
        coerce   => sub {
            my $args = shift;
            return $args if ref($args) eq 'DBI::db';
            ref($args) eq 'HASH' or die 'Not a DB handle nor a hashref';
            return DBI->connect( @{$args}{qw/dsn user password options/} );
        },
    );
};