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| 1 | <?php |
| 2 | /** |
| 3 | * Implements Special:Wantedcategories |
| 4 | * |
| 5 | * Copyright © 2005 Ævar Arnfjörð Bjarmason |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License along |
| 18 | * with this program; if not, write to the Free Software Foundation, Inc., |
| 19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| 20 | * http://www.gnu.org/copyleft/gpl.html |
| 21 | * |
| 22 | * @file |
| 23 | * @ingroup SpecialPage |
| 24 | */ |
| 25 | |
| 26 | namespace MediaWiki\Specials; |
| 27 | |
| 28 | use HtmlArmor; |
| 29 | use ILanguageConverter; |
| 30 | use MediaWiki\Cache\LinkBatchFactory; |
| 31 | use MediaWiki\Languages\LanguageConverterFactory; |
| 32 | use MediaWiki\SpecialPage\WantedQueryPage; |
| 33 | use MediaWiki\Title\Title; |
| 34 | use Skin; |
| 35 | use stdClass; |
| 36 | use Wikimedia\Rdbms\IConnectionProvider; |
| 37 | |
| 38 | /** |
| 39 | * A querypage to list the most wanted categories - implements Special:Wantedcategories |
| 40 | * |
| 41 | * @ingroup SpecialPage |
| 42 | */ |
| 43 | class SpecialWantedCategories extends WantedQueryPage { |
| 44 | private $currentCategoryCounts; |
| 45 | |
| 46 | private ILanguageConverter $languageConverter; |
| 47 | |
| 48 | /** |
| 49 | * @param IConnectionProvider $dbProvider |
| 50 | * @param LinkBatchFactory $linkBatchFactory |
| 51 | * @param LanguageConverterFactory $languageConverterFactory |
| 52 | */ |
| 53 | public function __construct( |
| 54 | IConnectionProvider $dbProvider, |
| 55 | LinkBatchFactory $linkBatchFactory, |
| 56 | LanguageConverterFactory $languageConverterFactory |
| 57 | ) { |
| 58 | parent::__construct( 'Wantedcategories' ); |
| 59 | $this->setDatabaseProvider( $dbProvider ); |
| 60 | $this->setLinkBatchFactory( $linkBatchFactory ); |
| 61 | $this->languageConverter = $languageConverterFactory->getLanguageConverter( $this->getContentLanguage() ); |
| 62 | } |
| 63 | |
| 64 | public function getQueryInfo() { |
| 65 | return [ |
| 66 | 'tables' => [ 'categorylinks', 'page' ], |
| 67 | 'fields' => [ |
| 68 | 'namespace' => NS_CATEGORY, |
| 69 | 'title' => 'cl_to', |
| 70 | 'value' => 'COUNT(*)' |
| 71 | ], |
| 72 | 'conds' => [ 'page_title' => null ], |
| 73 | 'options' => [ 'GROUP BY' => 'cl_to' ], |
| 74 | 'join_conds' => [ 'page' => [ 'LEFT JOIN', |
| 75 | [ 'page_title = cl_to', |
| 76 | 'page_namespace' => NS_CATEGORY ] ] ] |
| 77 | ]; |
| 78 | } |
| 79 | |
| 80 | public function preprocessResults( $db, $res ) { |
| 81 | parent::preprocessResults( $db, $res ); |
| 82 | |
| 83 | $this->currentCategoryCounts = []; |
| 84 | |
| 85 | if ( !$res->numRows() || !$this->isCached() ) { |
| 86 | return; |
| 87 | } |
| 88 | |
| 89 | // Fetch (hopefully) up-to-date numbers of pages in each category. |
| 90 | // This should be fast enough as we limit the list to a reasonable length. |
| 91 | |
| 92 | $allCategories = []; |
| 93 | foreach ( $res as $row ) { |
| 94 | $allCategories[] = $row->title; |
| 95 | } |
| 96 | |
| 97 | $categoryRes = $db->newSelectQueryBuilder() |
| 98 | ->select( [ 'cat_title', 'cat_pages' ] ) |
| 99 | ->from( 'category' ) |
| 100 | ->where( [ 'cat_title' => $allCategories ] ) |
| 101 | ->caller( __METHOD__ )->fetchResultSet(); |
| 102 | foreach ( $categoryRes as $row ) { |
| 103 | $this->currentCategoryCounts[$row->cat_title] = intval( $row->cat_pages ); |
| 104 | } |
| 105 | |
| 106 | // Back to start for display |
| 107 | $res->seek( 0 ); |
| 108 | } |
| 109 | |
| 110 | /** |
| 111 | * @param Skin $skin |
| 112 | * @param stdClass $result Result row |
| 113 | * @return string |
| 114 | */ |
| 115 | public function formatResult( $skin, $result ) { |
| 116 | $nt = Title::makeTitle( $result->namespace, $result->title ); |
| 117 | |
| 118 | $text = new HtmlArmor( $this->languageConverter->convertHtml( $nt->getText() ) ); |
| 119 | |
| 120 | if ( !$this->isCached() ) { |
| 121 | // We can assume the freshest data |
| 122 | $plink = $this->getLinkRenderer()->makeBrokenLink( |
| 123 | $nt, |
| 124 | $text |
| 125 | ); |
| 126 | $nlinks = $this->msg( 'nmembers' )->numParams( $result->value )->escaped(); |
| 127 | } else { |
| 128 | $plink = $this->getLinkRenderer()->makeLink( $nt, $text ); |
| 129 | |
| 130 | $currentValue = $this->currentCategoryCounts[$result->title] ?? 0; |
| 131 | $cachedValue = intval( $result->value ); // T76910 |
| 132 | |
| 133 | // If the category has been created or emptied since the list was refreshed, strike it |
| 134 | if ( $nt->isKnown() || $currentValue === 0 ) { |
| 135 | $plink = "<del>$plink</del>"; |
| 136 | } |
| 137 | |
| 138 | // Show the current number of category entries if it changed |
| 139 | if ( $currentValue !== $cachedValue ) { |
| 140 | $nlinks = $this->msg( 'nmemberschanged' ) |
| 141 | ->numParams( $cachedValue, $currentValue )->escaped(); |
| 142 | } else { |
| 143 | $nlinks = $this->msg( 'nmembers' )->numParams( $cachedValue )->escaped(); |
| 144 | } |
| 145 | } |
| 146 | |
| 147 | return $this->getLanguage()->specialList( $plink, $nlinks ); |
| 148 | } |
| 149 | |
| 150 | protected function getGroupName() { |
| 151 | return 'maintenance'; |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | /** |
| 156 | * Retain the old class name for backwards compatibility. |
| 157 | * @deprecated since 1.41 |
| 158 | */ |
| 159 | class_alias( SpecialWantedCategories::class, 'SpecialWantedCategories' ); |