Doctrine 2 ORM DateTime field in identifier

Question

In our DB tables, we columns refID and date are a composite primary key, with one field of the identifier being mapped as a datetime:<

Answer 1

Be careful with

return new DateTimeEx('@' . $dateTime->format('U'));

The timezone won't be good. You should do :

$val = new DateTimeEx('@' . $dateTime->format('U'));
$val->setTimezone($dateTime->getTimezone());

return $val;