package MyDB;
use base qw/DBIx::Class/;
- __PACKAGE__->load_components('Core');
+ __PACKAGE__->load_components('DB');
__PACKAGE__->connection('dbi:...', 'user', 'pass', \%attrs);
package MyDB::MyTable;
use base qw/MyDB/;
+ __PACKAGE__->load_components('Core');
...