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<?php /** * Copyright © 2005 Ævar Arnfjörð Bjarmason * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * http://www.gnu.org/copyleft/gpl.html * * @file */ namespace MediaWiki\Specials; use HtmlArmor; use MediaWiki\Cache\LinkBatchFactory; use MediaWiki\Language\ILanguageConverter; use MediaWiki\Languages\LanguageConverterFactory; use MediaWiki\SpecialPage\WantedQueryPage; use MediaWiki\Title\Title; use Skin; use stdClass; use Wikimedia\Rdbms\IConnectionProvider; /** * List of the most wanted categories * * @ingroup SpecialPage */ class SpecialWantedCategories extends WantedQueryPage { /** @var int[] */ private $currentCategoryCounts; private ILanguageConverter $languageConverter; /** * @param IConnectionProvider $dbProvider * @param LinkBatchFactory $linkBatchFactory * @param LanguageConverterFactory $languageConverterFactory */ public function __construct( IConnectionProvider $dbProvider, LinkBatchFactory $linkBatchFactory, LanguageConverterFactory $languageConverterFactory ) { parent::__construct( 'Wantedcategories' ); $this->setDatabaseProvider( $dbProvider ); $this->setLinkBatchFactory( $linkBatchFactory ); $this->languageConverter = $languageConverterFactory->getLanguageConverter( $this->getContentLanguage() ); } public function getQueryInfo() { return [ 'tables' => [ 'categorylinks', 'page' ], 'fields' => [ 'namespace' => NS_CATEGORY, 'title' => 'cl_to', 'value' => 'COUNT(*)' ], 'conds' => [ 'page_title' => null ], 'options' => [ 'GROUP BY' => 'cl_to' ], 'join_conds' => [ 'page' => [ 'LEFT JOIN', [ 'page_title = cl_to', 'page_namespace' => NS_CATEGORY ] ] ] ]; } public function preprocessResults( $db, $res ) { parent::preprocessResults( $db, $res ); $this->currentCategoryCounts = []; if ( !$res->numRows() || !$this->isCached() ) { return; } // Fetch (hopefully) up-to-date numbers of pages in each category. // This should be fast enough as we limit the list to a reasonable length. $allCategories = []; foreach ( $res as $row ) { $allCategories[] = $row->title; } $categoryRes = $db->newSelectQueryBuilder() ->select( [ 'cat_title', 'cat_pages' ] ) ->from( 'category' ) ->where( [ 'cat_title' => $allCategories ] ) ->caller( __METHOD__ )->fetchResultSet(); foreach ( $categoryRes as $row ) { $this->currentCategoryCounts[$row->cat_title] = intval( $row->cat_pages ); } // Back to start for display $res->seek( 0 ); } /** * @param Skin $skin * @param stdClass $result Result row * @return string */ public function formatResult( $skin, $result ) { $nt = Title::makeTitle( $result->namespace, $result->title ); $text = new HtmlArmor( $this->languageConverter->convertHtml( $nt->getText() ) ); if ( !$this->isCached() ) { // We can assume the freshest data $plink = $this->getLinkRenderer()->makeBrokenLink( $nt, $text ); $nlinks = $this->msg( 'nmembers' )->numParams( $result->value )->escaped(); } else { $plink = $this->getLinkRenderer()->makeLink( $nt, $text ); $currentValue = $this->currentCategoryCounts[$result->title] ?? 0; $cachedValue = intval( $result->value ); // T76910 // If the category has been created or emptied since the list was refreshed, strike it if ( $nt->isKnown() || $currentValue === 0 ) { $plink = "<del>$plink</del>"; } // Show the current number of category entries if it changed if ( $currentValue !== $cachedValue ) { $nlinks = $this->msg( 'nmemberschanged' ) ->numParams( $cachedValue, $currentValue )->escaped(); } else { $nlinks = $this->msg( 'nmembers' )->numParams( $cachedValue )->escaped(); } } return $this->getLanguage()->specialList( $plink, $nlinks ); } protected function getGroupName() { return 'maintenance'; } } /** * Retain the old class name for backwards compatibility. * @deprecated since 1.41 */ class_alias( SpecialWantedCategories::class, 'SpecialWantedCategories' );
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