doctrine: QueryBuilder vs createQuery?

Question

In Doctrine you can create DQL in 2 ways:

EntityManager::createQuery:

$query = $em->createQuery(\'SELECT u FROM MyProject\\Model\         


        

Answer 1

Query builder is just, lets say, interface to create query... It should be more comfortable to use, it does not have just add() method, but also methods like where(), andWhere(), from(), etc. But in the end, it just composes query like the one you use in the createQuery() method.

Example of more advanced use of query builder:

$em->createQueryBuilder()
            ->from('Project\Entities\Item', 'i')
            ->select("i, e")
            ->join("i.entity", 'e')
            ->where("i.lang = :lang AND e.album = :album")
            ->setParameter('lang', $lang)
            ->setParameter('album', $album);