Doctrine 2 - How to use discriminator column in where clause

Question

I was used discriminator column in where clause like this:

//f = root entity
$qb = $this->createQueryBuilder(\'f\');
$qb->add(\'where\', \'f.format = \         


        

Answer 1

As this latest doctrine version it is supported to query directly the discriminator value.

public function findOfType($discr)
    {
        $qb = $this->createQueryBuilder('e');
        $qb->where('e INSTANCE OF :discr');
        $qb->setParameter('discr', $discr);
        return $qb->getQuery()->getResult();
    }

will have a result query with this clause:

WHERE e0_.discr IN ('discriminator_passed_to_function')