gplx/mediawiki/includes/jobqueue/jobs/DeleteLinksJob.php

75 lines
2.5 KiB
PHP

<?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
*/
use MediaWiki\Deferred\LinksUpdate\LinksDeletionUpdate;
use MediaWiki\Deferred\LinksUpdate\LinksUpdate;
use MediaWiki\MediaWikiServices;
use MediaWiki\Title\Title;
use Wikimedia\Rdbms\IDBAccessObject;
/**
* Job to prune link tables for pages that were deleted
*
* @internal For use by core in LinksDeletionUpdate only.
* @since 1.27
* @ingroup JobQueue
*/
class DeleteLinksJob extends Job {
public function __construct( Title $title, array $params ) {
parent::__construct( 'deleteLinks', $title, $params );
$this->removeDuplicates = true;
}
public function run() {
if ( $this->title === null ) {
$this->setLastError( "deleteLinks: Invalid title" );
return false;
}
$pageId = $this->params['pageId'];
// Serialize links updates by page ID so they see each others' changes
$dbw = MediaWikiServices::getInstance()->getConnectionProvider()->getPrimaryDatabase();
$scopedLock = LinksUpdate::acquirePageLock( $dbw, $pageId, 'job' );
if ( $scopedLock === null ) {
$this->setLastError( 'LinksUpdate already running for this page, try again later.' );
return false;
}
$services = MediaWikiServices::getInstance();
$wikiPageFactory = $services->getWikiPageFactory();
if ( $wikiPageFactory->newFromID( $pageId, IDBAccessObject::READ_LATEST ) ) {
// The page was restored somehow or something went wrong
$this->setLastError( "deleteLinks: Page #$pageId exists" );
return false;
}
$dbProvider = $services->getConnectionProvider();
$timestamp = $this->params['timestamp'] ?? null;
$page = $wikiPageFactory->newFromTitle( $this->title ); // title when deleted
$update = new LinksDeletionUpdate( $page, $pageId, $timestamp );
$update->setTransactionTicket( $dbProvider->getEmptyTransactionTicket( __METHOD__ ) );
$update->doUpdate();
return true;
}
}