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| <?php | |
| namespace CirrusSearch\Search; | |
| use CirrusSearch\CirrusSearch; | |
| use CirrusSearch\SearchConfig; | |
| use SearchEngine; | |
| /** | |
| * Index field representing the source_text data. | |
| * @package CirrusSearch | |
| */ | |
| class SourceTextIndexField extends TextIndexField { | |
| /** @var bool enable trigram index for accelerated regex query */ | |
| private $withTrigrams; | |
| public function __construct( $name, $type, SearchConfig $config ) { | |
| parent::__construct( $name, $type, $config ); | |
| if ( $config->getElement( 'CirrusSearchWikimediaExtraPlugin', 'regex' ) && | |
| in_array( 'build', $config->getElement( 'CirrusSearchWikimediaExtraPlugin', 'regex' ) ) | |
| ) { | |
| $this->withTrigrams = true; | |
| } | |
| } | |
| /** | |
| * @param SearchEngine $engine | |
| * @return array|void | |
| */ | |
| public function getMapping( SearchEngine $engine ) { | |
| if ( !( $engine instanceof CirrusSearch ) ) { | |
| throw new \LogicException( "Cannot map CirrusSearch fields for another engine." ); | |
| } | |
| $this->initFlags(); | |
| $field = [ | |
| 'index' => false, // We only use the .plain field | |
| 'type' => 'text', | |
| 'fields' => [ | |
| 'plain' => [ | |
| 'type' => 'text', | |
| 'norms' => false, | |
| 'analyzer' => 'source_text_plain', | |
| 'search_analyzer' => 'source_text_plain_search', | |
| 'position_increment_gap' => self::POSITION_INCREMENT_GAP, | |
| 'similarity' => self::getSimilarity( $this->config, $this->name, 'plain' ), | |
| ], | |
| ] | |
| ]; | |
| if ( $this->withTrigrams ) { | |
| $field['fields']['trigram'] = [ | |
| 'norms' => false, | |
| 'type' => 'text', | |
| 'analyzer' => 'trigram', | |
| 'index_options' => 'docs', | |
| ]; | |
| } | |
| $this->configureHighlighting( $field, [ 'plain' ], false ); | |
| return $field; | |
| } | |
| } |