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path: root/www/wiki/includes/specials/SpecialMostlinkedcategories.php
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<?php
/**
 * Implements Special:Mostlinkedcategories
 *
 * 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
 * @ingroup SpecialPage
 * @author Ævar Arnfjörð Bjarmason <avarab@gmail.com>
 */

use Wikimedia\Rdbms\IResultWrapper;
use Wikimedia\Rdbms\IDatabase;

/**
 * A querypage to show categories ordered in descending order by the pages in them
 *
 * @ingroup SpecialPage
 */
class MostlinkedCategoriesPage extends QueryPage {
	function __construct( $name = 'Mostlinkedcategories' ) {
		parent::__construct( $name );
	}

	function isSyndicated() {
		return false;
	}

	public function getQueryInfo() {
		return [
			'tables' => [ 'category' ],
			'fields' => [ 'title' => 'cat_title',
				'namespace' => NS_CATEGORY,
				'value' => 'cat_pages' ],
			'conds' => [ 'cat_pages > 0' ],
		];
	}

	function sortDescending() {
		return true;
	}

	/**
	 * Fetch user page links and cache their existence
	 *
	 * @param IDatabase $db
	 * @param IResultWrapper $res
	 */
	function preprocessResults( $db, $res ) {
		$this->executeLBFromResultWrapper( $res );
	}

	/**
	 * @param Skin $skin
	 * @param object $result Result row
	 * @return string
	 */
	function formatResult( $skin, $result ) {
		global $wgContLang;

		$nt = Title::makeTitleSafe( NS_CATEGORY, $result->title );
		if ( !$nt ) {
			return Html::element(
				'span',
				[ 'class' => 'mw-invalidtitle' ],
				Linker::getInvalidTitleDescription(
					$this->getContext(),
					NS_CATEGORY,
					$result->title )
			);
		}

		$text = $wgContLang->convert( $nt->getText() );
		$plink = $this->getLinkRenderer()->makeLink( $nt, $text );
		$nlinks = $this->msg( 'nmembers' )->numParams( $result->value )->escaped();

		return $this->getLanguage()->specialList( $plink, $nlinks );
	}

	protected function getGroupName() {
		return 'highuse';
	}
}