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| 1 | <?php |
| 2 | |
| 3 | namespace CirrusSearch\Search; |
| 4 | |
| 5 | use Elastica\ResultSet as ElasticaResultSet; |
| 6 | |
| 7 | /** |
| 8 | * Returns titles and makes no effort to figure out how the titles matched. |
| 9 | */ |
| 10 | class TitleResultsType extends BaseResultsType { |
| 11 | |
| 12 | /** |
| 13 | * @var TitleHelper |
| 14 | */ |
| 15 | private $titleHelper; |
| 16 | |
| 17 | public function __construct( ?TitleHelper $titleHelper = null ) { |
| 18 | $this->titleHelper = $titleHelper ?: new TitleHelper(); |
| 19 | } |
| 20 | |
| 21 | /** |
| 22 | * @return array corresponding to Elasticsearch fields syntax |
| 23 | */ |
| 24 | public function getFields() { |
| 25 | return []; |
| 26 | } |
| 27 | |
| 28 | /** |
| 29 | * @param array $extraHighlightFields |
| 30 | * @return array|null |
| 31 | */ |
| 32 | public function getHighlightingConfiguration( array $extraHighlightFields = [] ) { |
| 33 | return null; |
| 34 | } |
| 35 | |
| 36 | /** |
| 37 | * @param ElasticaResultSet $resultSet |
| 38 | * @return mixed Set of search results, the types of which vary by implementation. |
| 39 | */ |
| 40 | public function transformElasticsearchResult( ElasticaResultSet $resultSet ) { |
| 41 | $results = []; |
| 42 | foreach ( $resultSet->getResults() as $r ) { |
| 43 | $results[] = $this->getTitleHelper()->makeTitle( $r ); |
| 44 | } |
| 45 | return $results; |
| 46 | } |
| 47 | |
| 48 | /** |
| 49 | * @return array |
| 50 | */ |
| 51 | public function createEmptyResult() { |
| 52 | return []; |
| 53 | } |
| 54 | |
| 55 | /** |
| 56 | * @return TitleHelper |
| 57 | */ |
| 58 | public function getTitleHelper(): TitleHelper { |
| 59 | if ( $this->titleHelper === null ) { |
| 60 | $this->titleHelper = new TitleHelper(); |
| 61 | } |
| 62 | return $this->titleHelper; |
| 63 | } |
| 64 | } |