vendor/friendsofsymfony/elastica-bundle/Doctrine/ORM/SliceFetcher.php line 9

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  1. <?php
  3. namespace FOS\ElasticaBundle\Doctrine\ORM;
  5. use Doctrine\ORM\QueryBuilder;
  6. use FOS\ElasticaBundle\Exception\InvalidArgumentTypeException;
  7. use FOS\ElasticaBundle\Doctrine\SliceFetcherInterface;
  9. @trigger_error(sprintf('The %s class is deprecated since version 4.1 and will be removed in 5.0.', SliceFetcher::class), E_USER_DEPRECATED);
  11. /**
  12.  * @deprecated since 4.1 will be removed in 5.x.
  13.  * 
  14.  * Fetches a slice of objects.
  15.  *
  16.  * @author Thomas Prelot <tprelot@gmail.com>
  17.  */
  18. class SliceFetcher implements SliceFetcherInterface
  19. {
  20.     /**
  21.      * This method should remain in sync with Provider::fetchSlice until that method is deprecated and
  22.      * removed.
  23.      *
  24.      * {@inheritdoc}
  25.      */
  26.     public function fetch($queryBuilder, $limit, $offset, array $previousSlice, array $identifierFieldNames)
  27.     {
  28.         if (!$queryBuilder instanceof QueryBuilder) {
  29.             throw new InvalidArgumentTypeException($queryBuilder, 'Doctrine\ORM\QueryBuilder');
  30.         }
  32.         /*
  33.          * An orderBy DQL  part is required to avoid feching the same row twice.
  34.          * @see http://stackoverflow.com/questions/6314879/does-limit-offset-length-require-order-by-for-pagination
  35.          * @see http://www.postgresql.org/docs/current/static/queries-limit.html
  36.          * @see http://www.sqlite.org/lang_select.html#orderby
  37.          */
  38.         $orderBy = $queryBuilder->getDQLPart('orderBy');
  39.         if (empty($orderBy)) {
  40.             $rootAliases = $queryBuilder->getRootAliases();
  42.             foreach ($identifierFieldNames as $fieldName) {
  43.                 $queryBuilder->addOrderBy($rootAliases[0].'.'.$fieldName);
  44.             }
  45.         }
  47.         return $queryBuilder
  48.             ->setFirstResult($offset)
  49.             ->setMaxResults($limit)
  50.             ->getQuery()
  51.             ->getResult()
  52.         ;
  53.     }
  54. }