COUNT = 0的Doctrine2 DQL问题

Question

I have the following query so far:

   $shopQuery = $qb->select('DISTINCT u')
                    ->from("BlahUserBundle:User", 'u')
                    ->innerJoin('u.followers', 'followers')
                    ->andWhere('followers.id != :userId')
                    ->setParameter('userId', $user->getId())
                    ->orWhere('') //or where those user who doesn't have a follower yet
                    //->setMaxResults(5)
                    ;

I am trying to find a way to query all users who doesn't have a follower and whose follower is not my self (in this case my self is $user->getId() ). How do I do so?

Answer 1

Try this

$shopQuery = $qb->from("BlahUserBundle:User", 'u')
            ->leftJoin(
                'u.followers',
                'followers',
                'on',
                'followers.id != :userId'
            )
            ->where('followers.id IS NULL')
            ->setParameter('userId', $user->getId());
$shopQuery->getQuery()->getResults();