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| 1 | <?php |
| 2 | |
| 3 | namespace ProofreadPage\Index; |
| 4 | |
| 5 | use MediaWiki\MediaWikiServices; |
| 6 | use MediaWiki\Revision\SlotRecord; |
| 7 | use MediaWiki\Title\Title; |
| 8 | |
| 9 | /** |
| 10 | * @license GPL-2.0-or-later |
| 11 | * |
| 12 | * Allows to retrieve the content of the Index: page |
| 13 | */ |
| 14 | class DatabaseIndexContentLookup implements IndexContentLookup { |
| 15 | |
| 16 | /** @var IndexContent[] */ |
| 17 | private $cache = []; |
| 18 | |
| 19 | /** |
| 20 | * @inheritDoc |
| 21 | */ |
| 22 | public function isIndexTitleInCache( Title $indexTitle ): bool { |
| 23 | return array_key_exists( $indexTitle->getDBkey(), $this->cache ); |
| 24 | } |
| 25 | |
| 26 | /** |
| 27 | * @inheritDoc |
| 28 | */ |
| 29 | public function getIndexContentForTitle( Title $indexTitle ) { |
| 30 | $cacheKey = $indexTitle->getDBkey(); |
| 31 | |
| 32 | if ( !array_key_exists( $cacheKey, $this->cache ) ) { |
| 33 | $revision = MediaWikiServices::getInstance()->getRevisionStore() |
| 34 | ->getRevisionByTitle( $indexTitle ); |
| 35 | if ( $revision === null ) { |
| 36 | $this->cache[$cacheKey] = new IndexContent( [] ); |
| 37 | } else { |
| 38 | $content = $revision->getContent( SlotRecord::MAIN ); |
| 39 | if ( $content instanceof IndexContent ) { |
| 40 | $this->cache[$cacheKey] = $content; |
| 41 | } else { |
| 42 | $this->cache[$cacheKey] = new IndexContent( [] ); |
| 43 | } |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | return $this->cache[$cacheKey]; |
| 48 | } |
| 49 | } |