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| 1 | <?php |
| 2 | |
| 3 | namespace ProofreadPage\Page; |
| 4 | |
| 5 | use InvalidArgumentException; |
| 6 | use MediaWiki\MediaWikiServices; |
| 7 | use MediaWiki\Title\Title; |
| 8 | |
| 9 | /** |
| 10 | * @license GPL-2.0-or-later |
| 11 | * |
| 12 | * Allows to retrieve the quality level of a Page: page |
| 13 | * |
| 14 | * TODO: drop the category fallback when all Wikisource pages will have the relevant page property |
| 15 | */ |
| 16 | class DatabasePageQualityLevelLookup implements PageQualityLevelLookup { |
| 17 | |
| 18 | /** |
| 19 | * @var int |
| 20 | */ |
| 21 | private $pageNamespaceId; |
| 22 | |
| 23 | /** |
| 24 | * @var Title[] |
| 25 | */ |
| 26 | private $categoryForQualityLevel; |
| 27 | |
| 28 | /** @var (int|null)[] */ |
| 29 | private $cache = []; |
| 30 | |
| 31 | /** |
| 32 | * @param int $pageNamespaceId |
| 33 | */ |
| 34 | public function __construct( $pageNamespaceId ) { |
| 35 | $this->pageNamespaceId = $pageNamespaceId; |
| 36 | } |
| 37 | |
| 38 | /** |
| 39 | * @inheritDoc |
| 40 | */ |
| 41 | public function isPageTitleInCache( Title $pageTitle ): bool { |
| 42 | return array_key_exists( $pageTitle->getDBkey(), $this->cache ); |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * @inheritDoc |
| 47 | */ |
| 48 | public function flushCacheForPage( Title $pageTitle ) { |
| 49 | unset( $this->cache[ $pageTitle->getDBkey() ] ); |
| 50 | } |
| 51 | |
| 52 | /** |
| 53 | * @inheritDoc |
| 54 | */ |
| 55 | public function getQualityLevelForPageTitle( Title $pageTitle ) { |
| 56 | if ( !$pageTitle->inNamespace( $this->pageNamespaceId ) ) { |
| 57 | throw new InvalidArgumentException( $pageTitle . ' is not in Page: namespace' ); |
| 58 | } |
| 59 | $cacheKey = $pageTitle->getDBkey(); |
| 60 | if ( !array_key_exists( $cacheKey, $this->cache ) ) { |
| 61 | $this->fetchQualityLevelForPageTitles( [ $pageTitle ] ); |
| 62 | } |
| 63 | return $this->cache[$cacheKey]; |
| 64 | } |
| 65 | |
| 66 | /** |
| 67 | * @inheritDoc |
| 68 | */ |
| 69 | public function prefetchQualityLevelForTitles( array $pageTitles ) { |
| 70 | $pageTitles = array_filter( $pageTitles, function ( $pageTitle ) { |
| 71 | return $pageTitle instanceof Title && |
| 72 | $pageTitle->inNamespace( $this->pageNamespaceId ) && |
| 73 | !array_key_exists( $pageTitle->getDBkey(), $this->cache ); |
| 74 | } ); |
| 75 | |
| 76 | $this->fetchQualityLevelForPageTitles( $pageTitles ); |
| 77 | } |
| 78 | |
| 79 | /** |
| 80 | * @param Title[] $pageTitles |
| 81 | */ |
| 82 | private function fetchQualityLevelForPageTitles( array $pageTitles ) { |
| 83 | // We set to unknown all qualities |
| 84 | foreach ( $pageTitles as $pageTitle ) { |
| 85 | $this->cache[$pageTitle->getDBkey()] = null; |
| 86 | } |
| 87 | |
| 88 | $this->fetchQualityLevelForPageTitlesFromPageProperties( $pageTitles ); |
| 89 | $this->fetchQualityLevelForPageTitlesFromPageCategories( |
| 90 | $this->filterPagesWithoutKnownQuality( $pageTitles ) |
| 91 | ); |
| 92 | } |
| 93 | |
| 94 | /** |
| 95 | * @param Title[] $pageTitles |
| 96 | */ |
| 97 | private function fetchQualityLevelForPageTitlesFromPageProperties( array $pageTitles ) { |
| 98 | if ( !$pageTitles ) { |
| 99 | return; |
| 100 | } |
| 101 | |
| 102 | $dbr = MediaWikiServices::getInstance()->getDBLoadBalancerFactory()->getReplicaDatabase(); |
| 103 | $results = $dbr->select( |
| 104 | [ 'page_props', 'page' ], |
| 105 | [ 'page_title', 'pp_value' ], |
| 106 | [ |
| 107 | 'pp_propname' => 'proofread_page_quality_level', |
| 108 | 'page_id = pp_page', |
| 109 | 'page_namespace' => $this->pageNamespaceId, |
| 110 | 'page_title' => array_map( static function ( Title $pageTitle ) { |
| 111 | return $pageTitle->getDBkey(); |
| 112 | }, $pageTitles ) |
| 113 | ], |
| 114 | __METHOD__ |
| 115 | ); |
| 116 | foreach ( $results as $result ) { |
| 117 | $this->cache[$result->page_title] = intval( $result->pp_value ); |
| 118 | } |
| 119 | } |
| 120 | |
| 121 | /** |
| 122 | * @param Title[] $pageTitles |
| 123 | */ |
| 124 | private function fetchQualityLevelForPageTitlesFromPageCategories( array $pageTitles ) { |
| 125 | if ( !$pageTitles ) { |
| 126 | return; |
| 127 | } |
| 128 | |
| 129 | $pageDbKeys = array_map( static function ( Title $title ){ |
| 130 | return $title->getDBkey(); |
| 131 | }, $pageTitles ); |
| 132 | |
| 133 | $dbr = MediaWikiServices::getInstance()->getDBLoadBalancerFactory()->getReplicaDatabase(); |
| 134 | foreach ( $this->getCategoryForQualityLevels() as $qualityLevel => $qualityCategory ) { |
| 135 | $results = $dbr->select( |
| 136 | [ 'categorylinks', 'page' ], |
| 137 | [ 'page_title' ], |
| 138 | [ |
| 139 | 'page_id = cl_from', |
| 140 | 'page_title' => $pageDbKeys, |
| 141 | 'cl_to' => $qualityCategory->getDBkey(), |
| 142 | 'page_namespace' => $this->pageNamespaceId |
| 143 | ], |
| 144 | __METHOD__ |
| 145 | ); |
| 146 | |
| 147 | foreach ( $results as $result ) { |
| 148 | $this->cache[$result->page_title] = $qualityLevel; |
| 149 | } |
| 150 | } |
| 151 | } |
| 152 | |
| 153 | /** |
| 154 | * @param array $pageTitles |
| 155 | * @return array |
| 156 | */ |
| 157 | private function filterPagesWithoutKnownQuality( array $pageTitles ) { |
| 158 | return array_filter( $pageTitles, function ( Title $pageTitle ) { |
| 159 | return $this->cache[$pageTitle->getDBkey()] === null; |
| 160 | } ); |
| 161 | } |
| 162 | |
| 163 | /** |
| 164 | * @return array categoryForQualityLevel |
| 165 | */ |
| 166 | private function getCategoryForQualityLevels() { |
| 167 | if ( $this->categoryForQualityLevel === null ) { |
| 168 | $this->categoryForQualityLevel = $this->computeCategoryForQualityLevels(); |
| 169 | } |
| 170 | return $this->categoryForQualityLevel; |
| 171 | } |
| 172 | |
| 173 | private function computeCategoryForQualityLevels() { |
| 174 | $qualityCategories = []; |
| 175 | for ( $qualityLevel = 0; $qualityLevel <= 4; $qualityLevel++ ) { |
| 176 | $categoryTitle = Title::makeTitleSafe( |
| 177 | NS_CATEGORY, |
| 178 | wfMessage( "proofreadpage_quality{$qualityLevel}_category" )->inContentLanguage()->text() |
| 179 | ); |
| 180 | if ( $categoryTitle !== null ) { |
| 181 | $qualityCategories[$qualityLevel] = $categoryTitle; |
| 182 | } |
| 183 | } |
| 184 | return $qualityCategories; |
| 185 | } |
| 186 | } |