INTERVAL 1 MONTH not working With symfony2 doctrine?

Question

I am stuck here and i spend last 2 days resolving this issue but failed. I am writing a query inside my repository to get the entries for current month. here is my query:-

Answer 1

You should use parameter binding:

$query = $em->createQuery('SELECT count(a) FROM CollegeStudentBundle:StudentAttendance a where a.student_id = :id and a.date > :date');
$query->setParameter('id', $id);
$query->setParameter('date', new \DateTime('-1 month'));