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<?php
/**
* Job to update link tables for pages
*
* 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 JobQueue
*/
use MediaWiki\MediaWikiServices;
/**
* Job to prune link tables for pages that were deleted
*
* Only DataUpdate classes should construct these jobs
*
* @ingroup JobQueue
* @since 1.27
*/
class DeleteLinksJob extends Job {
public function __construct( Title $title, array $params ) {
parent::__construct( 'deleteLinks', $title, $params );
$this->removeDuplicates = true;
}
public function run() {
if ( is_null( $this->title ) ) {
$this->setLastError( "deleteLinks: Invalid title" );
return false;
}
$pageId = $this->params['pageId'];
// Serialize links updates by page ID so they see each others' changes
$scopedLock = LinksUpdate::acquirePageLock( wfGetDB( DB_MASTER ), $pageId, 'job' );
if ( $scopedLock === null ) {
$this->setLastError( 'LinksUpdate already running for this page, try again later.' );
return false;
}
if ( WikiPage::newFromID( $pageId, WikiPage::READ_LATEST ) ) {
// The page was restored somehow or something went wrong
$this->setLastError( "deleteLinks: Page #$pageId exists" );
return false;
}
$factory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory();
$timestamp = $this->params['timestamp'] ?? null;
$page = WikiPage::factory( $this->title ); // title when deleted
$update = new LinksDeletionUpdate( $page, $pageId, $timestamp );
$update->setTransactionTicket( $factory->getEmptyTransactionTicket( __METHOD__ ) );
$update->doUpdate();
return true;
}
}
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