How compare part of a date in Doctrine2

Question

How can I extract part of the date (eg the month) in DQL?

I'm trying to use a query something like this:

$query = $qb->select('u')
->from('user', 'u')
->where('MONTH(u.birthdate)', $month)
->getQuery();

I'm trying to select all users who's birthday is in the current month. Is this possible? how?

Answer 1

尝试

->where('MONTH(u.birthdate)=:month')->setParameter("month", $month)

Answer 2

To enable those MySQL function like MONTH, YEAR, etc, you will have to first install them and enable them, you can get it here from Benjamin Eberlei Doctrine 2 Extensions

and follow the instrucions.