ClearWatchlistNotificationsJob.php

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<?php
namespace MediaWiki\Watchlist;
 
use GenericParameterJob;
use InvalidArgumentException;
use Job;
use MediaWiki\MainConfigNames;
use MediaWiki\MediaWikiServices;
 
class ClearWatchlistNotificationsJob extends Job implements GenericParameterJob {
    public function __construct( array $params ) {
        parent::__construct( 'clearWatchlistNotifications', $params );
 
        static $required = [ 'userId', 'casTime' ];
        $missing = implode( ', ', array_diff( $required, array_keys( $this->params ) ) );
        if ( $missing != '' ) {
            throw new InvalidArgumentException( "Missing parameter(s) $missing" );
        }
 
        $this->removeDuplicates = true;
    }
 
    public function run() {
        $services = MediaWikiServices::getInstance();
        $dbProvider = $services->getConnectionProvider();
        $rowsPerQuery = $services->getMainConfig()->get( MainConfigNames::UpdateRowsPerQuery );
 
        $dbw = $dbProvider->getPrimaryDatabase();
        $ticket = $dbProvider->getEmptyTransactionTicket( __METHOD__ );
        if ( !isset( $this->params['timestamp'] ) ) {
            $timestamp = null;
            $timestampCond = $dbw->expr( 'wl_notificationtimestamp', '!=', null );
        } else {
            $timestamp = $dbw->timestamp( $this->params['timestamp'] );
            $timestampCond = $dbw->expr( 'wl_notificationtimestamp', '!=', $timestamp )
                ->or( 'wl_notificationtimestamp', '=', null );
        }
        // New notifications since the reset should not be cleared
        $casTimeCond = $dbw->expr( 'wl_notificationtimestamp', '<', $dbw->timestamp( $this->params['casTime'] ) )
            ->or( 'wl_notificationtimestamp', '=', null );
 
        $firstBatch = true;
        do {
            $idsToUpdate = $dbw->newSelectQueryBuilder()
                ->select( 'wl_id' )
                ->from( 'watchlist' )
                ->where( [ 'wl_user' => $this->params['userId'] ] )
                ->andWhere( $timestampCond )
                ->andWhere( $casTimeCond )
                ->limit( $rowsPerQuery )
                ->caller( __METHOD__ )->fetchFieldValues();
 
            if ( $idsToUpdate ) {
                $dbw->newUpdateQueryBuilder()
                    ->update( 'watchlist' )
                    ->set( [ 'wl_notificationtimestamp' => $timestamp ] )
                    ->where( [ 'wl_id' => $idsToUpdate ] )
                    ->andWhere( $casTimeCond )
                    ->caller( __METHOD__ )->execute();
                if ( !$firstBatch ) {
                    $dbProvider->commitAndWaitForReplication( __METHOD__, $ticket );
                }
                $firstBatch = false;
            }
        } while ( $idsToUpdate );
        return true;
    }
}
class_alias( ClearWatchlistNotificationsJob::class, 'ClearWatchlistNotificationsJob' );