Get single row result with Doctrine NativeQuery

Question

I\'m trying to get a single row returned from a native query with Doctrine. Here\'s my code:

$rsm = new ResultSetMapping;
$rsm->addEntityResult(\'VNNCoreB         


        

Answer 1

I use fetchObject() here a small example using Symfony 4.4

    <?php 
    use Doctrine\DBAL\Driver\Connection;

    class MyController{

    public function index($username){
      $queryBuilder = $connection->createQueryBuilder();
      $queryBuilder
        ->select('id', 'name')
        ->from('app_user')
        ->where('name = ?')
        ->setParameter(0, $username)
        ->setMaxResults(1);
      $stmUser = $queryBuilder->execute();

      dump($stmUser->fetchObject());

      //get_class_methods($stmUser) -> to see all methods
    }
  }

Response:

{ 
"id": "2", "name":"myuser"
}

Answer 2

->getSingleScalarResult() will return a single value, instead of an array.

Answer 3

Both getSingleResult() and getOneOrNullResult() will throw an exception if there is more than one result. To fix this problem you could add setMaxResults(1) to your query builder.

 $firstSubscriber = $entity->createQueryBuilder()->select('sub')
        ->from("\Application\Entity\Subscriber", 'sub')
        ->where('sub.subscribe=:isSubscribe')
        ->setParameter('isSubscribe', 1)  
        ->setMaxResults(1)
        ->getQuery()
        ->getOneOrNullResult();

Answer 4

To fetch single row

$result = $this->getEntityManager()->getConnection()->fetchAssoc($sql)

To fetch all records

$result = $this->getEntityManager()->getConnection()->fetchAll($sql)

Here you can use sql native query, all will work without any issue.

Answer 5

You can use $query->getSingleResult(), which will throw an exception if more than one result are found, or if no result is found. (see the related phpdoc here https://github.com/doctrine/doctrine2/blob/master/lib/Doctrine/ORM/AbstractQuery.php#L791)

There's also the less famous $query->getOneOrNullResult() which will throw an exception if more than one result are found, and return null if no result is found. (see the related phpdoc here https://github.com/doctrine/doctrine2/blob/master/lib/Doctrine/ORM/AbstractQuery.php#L752)

Answer 6

I just want one result

implies that you expect only one row to be returned. So either adapt your query, e.g.

SELECT player_id
FROM players p
WHERE CONCAT(p.first_name, ' ', p.last_name) = ?
LIMIT 0, 1

(and then use getSingleResult() as recommended by AdrienBrault) or fetch rows as an array and access the first item:

// ...
$players = $query->getArrayResult();
$myPlayer = $players[0];