Symfony原则if querybuilder中的if语句

Question

Is it possible to insert IF statement inside doctrine query builder? For example: I have User and Group entities with OneToMany relationship. Group has boolean field hidden . How to create query builder which would select groups that are hidden = false if Group owner is not current user. So that only group owner can see hidden=true groups. and other users can only see hidden=false groups

 $qb = $this->createQueryBuilder('group')
        ->where('group.owner = :userId')
        ->setParameter('userId', $user->getId())
        ->orderBy('group.created', 'DESC');

Answer 1

This should fit your needs

$qb = $this->createQueryBuilder('group');

$qb
    ->where(
      $qb->expr()->andX(
        $qb->expr()->eq('group.owner', ':userId'),
        $qb->expr()->eq('group.hidden', true)
      )
    )
    ->orWhere($qb->expr()->eq('group.hidden', false))
    ->setParameter('userId', $user->getId())
    ->orderBy('group.created', 'DESC');

First part of query will keep a row only if current user is the owner and group is hidden.

Second part will include all non-hidden groups.