wikimedia/mediawiki-core

<?php
/**
 * Implements Special:Mostinterwikis
 *
 * 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
 */

namespace MediaWiki\Specials;

use MediaWiki\Cache\LinkBatchFactory;
use MediaWiki\Html\Html;
use MediaWiki\Linker\Linker;
use MediaWiki\SpecialPage\QueryPage;
use MediaWiki\Title\NamespaceInfo;
use MediaWiki\Title\Title;
use Skin;
use stdClass;
use Wikimedia\Rdbms\IConnectionProvider;
use Wikimedia\Rdbms\IDatabase;
use Wikimedia\Rdbms\IResultWrapper;

/**
 * A special page that listed pages that have highest interwiki count
 *
 * @ingroup SpecialPage
 */
class SpecialMostInterwikis extends QueryPage {

    private NamespaceInfo $namespaceInfo;

    /**
     * @param NamespaceInfo $namespaceInfo
     * @param IConnectionProvider $dbProvider
     * @param LinkBatchFactory $linkBatchFactory
     */
    public function __construct(
        NamespaceInfo $namespaceInfo,
        IConnectionProvider $dbProvider,
        LinkBatchFactory $linkBatchFactory
    ) {
        parent::__construct( 'Mostinterwikis' );
        $this->namespaceInfo = $namespaceInfo;
        $this->setDatabaseProvider( $dbProvider );
        $this->setLinkBatchFactory( $linkBatchFactory );
    }

    public function isExpensive() {
        return true;
    }

    public function isSyndicated() {
        return false;
    }

    public function getQueryInfo() {
        return [
            'tables' => [
                'langlinks',
                'page'
            ], 'fields' => [
                'namespace' => 'page_namespace',
                'title' => 'page_title',
                'value' => 'COUNT(*)'
            ], 'conds' => [
                'page_namespace' => $this->namespaceInfo->getContentNamespaces()
            ], 'options' => [
                'HAVING' => 'COUNT(*) > 1',
                'GROUP BY' => [
                    'page_namespace',
                    'page_title'
                ]
            ], 'join_conds' => [
                'page' => [
                    'LEFT JOIN',
                    'page_id = ll_from'
                ]
            ]
        ];
    }

    /**
     * Pre-fill the link cache
     *
     * @param IDatabase $db
     * @param IResultWrapper $res
     */
    public function preprocessResults( $db, $res ) {
        $this->executeLBFromResultWrapper( $res );
    }

    /**
     * @param Skin $skin
     * @param stdClass $result
     * @return string
     */
    public function formatResult( $skin, $result ) {
        $title = Title::makeTitleSafe( $result->namespace, $result->title );
        if ( !$title ) {
            return Html::element(
                'span',
                [ 'class' => 'mw-invalidtitle' ],
                Linker::getInvalidTitleDescription(
                    $this->getContext(),
                    $result->namespace,
                    $result->title
                )
            );
        }

        $linkRenderer = $this->getLinkRenderer();
        if ( $this->isCached() ) {
            $link = $linkRenderer->makeLink( $title );
        } else {
            $link = $linkRenderer->makeKnownLink( $title );
        }

        $count = $this->msg( 'ninterwikis' )->numParams( $result->value )->escaped();

        return $this->getLanguage()->specialList( $link, $count );
    }

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

/**
 * Retain the old class name for backwards compatibility.
 * @deprecated since 1.41
 */
class_alias( SpecialMostInterwikis::class, 'SpecialMostInterwikis' );