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<?php |
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/** |
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* This file is part of the Pagerfanta project. |
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* |
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* (c) Tim Nagel <[email protected]> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Pagerfanta\Adapter; |
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use Elastica\Query; |
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use Elastica\SearchableInterface; |
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class ElasticaAdapter implements AdapterInterface |
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{ |
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/** |
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* @var Query |
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*/ |
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private $query; |
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/** |
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* @var \Elastica\ResultSet |
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*/ |
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private $resultSet; |
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/** |
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* @var SearchableInterface |
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*/ |
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private $searchable; |
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/** |
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* @var array |
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*/ |
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private $options; |
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/** |
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* @var int|null |
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* |
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* Used to limit the number of totalHits returned by ES. |
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* For more information, see: https://github.com/whiteoctober/Pagerfanta/pull/213#issue-87631892 |
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*/ |
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private $maxResults; |
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public function __construct(SearchableInterface $searchable, Query $query, array $options = array(), $maxResults = null) |
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{ |
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$this->searchable = $searchable; |
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$this->query = $query; |
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$this->options = $options; |
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$this->maxResults = $maxResults; |
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} |
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/** |
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* Returns the number of results. |
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* |
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* @return integer The number of results. |
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*/ |
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public function getNbResults() |
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{ |
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if (!$this->resultSet) { |
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$totalHits = $this->searchable->count($this->query); |
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} else { |
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$totalHits = $this->resultSet->getTotalHits(); |
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} |
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if (null === $this->maxResults) { |
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return $totalHits; |
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} |
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return min($totalHits, $this->maxResults); |
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} |
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/** |
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* Returns the Elastica ResultSet. Will return null if getSlice has not yet been |
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* called. |
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* |
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* @return \Elastica\ResultSet|null |
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*/ |
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public function getResultSet() |
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{ |
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return $this->resultSet; |
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} |
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/** |
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* Returns an slice of the results. |
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* |
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* @param integer $offset The offset. |
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* @param integer $length The length. |
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* |
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* @return array|\Traversable The slice. |
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*/ |
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public function getSlice($offset, $length) |
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{ |
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return $this->resultSet = $this->searchable->search($this->query, array_merge($this->options, array( |
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'from' => $offset, |
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'size' => $length |
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))); |
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} |
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} |
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whiteoctober /
Pagerfanta
