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| 1 | <?php |
| 2 | |
| 3 | namespace CirrusSearch\Hooks; |
| 4 | |
| 5 | use CirrusSearch\CirrusSearch; |
| 6 | use Config; |
| 7 | use MediaWiki\MediaWikiServices; |
| 8 | use MediaWiki\Search\Hook\SearchIndexFieldsHook; |
| 9 | use NullIndexField; |
| 10 | use SearchEngine; |
| 11 | use SearchIndexField; |
| 12 | |
| 13 | /** |
| 14 | * Hooks to allow custom fields to be added to the search index for pages |
| 15 | */ |
| 16 | class CustomPageFields implements SearchIndexFieldsHook { |
| 17 | public const CONFIG_OPTION = 'CirrusSearchCustomPageFields'; |
| 18 | |
| 19 | /** |
| 20 | * Add configured fields to mapping |
| 21 | * @param array &$fields array of field definitions to update |
| 22 | * @param SearchEngine $engine the search engine requesting field definitions |
| 23 | * @see https://www.mediawiki.org/wiki/Manual:Hooks/SearchIndexFields |
| 24 | */ |
| 25 | public function onSearchIndexFields( &$fields, $engine ) { |
| 26 | if ( !( $engine instanceof CirrusSearch ) ) { |
| 27 | return; |
| 28 | } |
| 29 | // += will not overwrite existing fields, only new fields may be added |
| 30 | $fields += self::buildSearchIndexFields( $engine, |
| 31 | MediaWikiServices::getInstance()->getMainConfig() ); |
| 32 | } |
| 33 | |
| 34 | /** |
| 35 | * Build configured fields |
| 36 | * @param SearchEngine $engine |
| 37 | * @param Config $config the wiki configuration |
| 38 | * @return SearchIndexField[] |
| 39 | */ |
| 40 | public static function buildSearchIndexFields( |
| 41 | SearchEngine $engine, |
| 42 | Config $config |
| 43 | ): array { |
| 44 | $fields = []; |
| 45 | foreach ( $config->get( self::CONFIG_OPTION ) as $name => $type ) { |
| 46 | $field = $engine->makeSearchFieldMapping( $name, $type ); |
| 47 | if ( $field instanceof NullIndexField ) { |
| 48 | throw new \RuntimeException( "Search field $name has invalid type of $type " ); |
| 49 | } |
| 50 | $fields[$name] = $field; |
| 51 | } |
| 52 | return $fields; |
| 53 | } |
| 54 | } |