DeleteLinksJob.php

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<?php
use \MediaWiki\MediaWikiServices;

class DeleteLinksJob extends Job {
    function __construct( Title $title, array $params ) {
        parent::__construct( 'deleteLinks', $title, $params );
        $this->removeDuplicates = true;
    }

    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 ( 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 = isset( $this->params['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;
    }
}