ModelBundle/Repository/RepositoryTrait/UseTrackableTrait.php
public function findByUsedInEntity($entityId, $entityType)
    {
        $qb = $this->createQueryBuilder();

        $qb->field('useReferences.' . $entityType . '.' . $entityId)->exists('true');

        return $qb->getQuery()->execute();
    }
public function findByUsedInEntity($entityId, $entityType)
    {
        $qb = $this->createQueryBuilder();

        $qb->field('useReferences.' . $entityType . '.' . $entityId)->exists('true');

        return $qb->getQuery()->execute();
    }
@param string $entityId
@param string $entityType

@return array