wikimedia/mediawiki-core

<?php
/**
 * 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\ExternalLinks;

use Wikimedia\Rdbms\IReadableDatabase;

/**
 * Functions for looking up externallinks table
 */
class ExternalLinksLookup {

    /**
     * Return an array of external links for a given page id
     *
     * @stable to call
     * @param int $pagId
     * @param IReadableDatabase $dbr
     * @param string $fname
     * @return string[] array of external links
     */
    public static function getExternalLinksForPage( int $pagId, IReadableDatabase $dbr, $fname ) {
        $links = [];
        $res = $dbr->newSelectQueryBuilder()
            ->select( [ 'el_to_domain_index', 'el_to_path' ] )
            ->from( 'externallinks' )
            ->where( [ 'el_from' => $pagId ] )
            ->caller( $fname )->fetchResultSet();
        foreach ( $res as $row ) {
            $links[] = LinkFilter::reverseIndexes( $row->el_to_domain_index ) . $row->el_to_path;
        }
        return $links;
    }
}