populateExternallinksIndex60.php

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<?php
require_once __DIR__ . '/Maintenance.php';
 
use MediaWiki\MediaWikiServices;
 
class PopulateExternallinksIndex60 extends LoggedUpdateMaintenance {
    public function __construct() {
        parent::__construct();
        $this->addDescription(
            'Populates the el_index_60 field in the externallinks table' );
        $this->setBatchSize( 200 );
    }
 
    protected function getUpdateKey() {
        return 'populate externallinks.el_index_60';
    }
 
    protected function updateSkippedMessage() {
        return 'externallinks.el_index_60 already populated.';
    }
 
    protected function doDBUpdates() {
        $dbw = $this->getDB( DB_PRIMARY );
        $this->output( "Populating externallinks.el_index_60...\n" );
 
        $count = 0;
        $start = 0;
        $lbFactory = MediaWikiServices::getInstance()->getDBLoadBalancerFactory();
        $last = $dbw->selectField( 'externallinks', 'MAX(el_id)', '', __METHOD__ );
        while ( $start <= $last ) {
            $end = $start + $this->mBatchSize;
            $this->output( "el_id $start - $end of $last\n" );
            $res = $dbw->select( 'externallinks', [ 'el_id', 'el_index' ],
                [
                    "el_id > $start",
                    "el_id <= $end",
                    'el_index_60' => '',
                ],
                __METHOD__,
                [ 'ORDER BY' => 'el_id' ]
            );
            foreach ( $res as $row ) {
                $count++;
                $dbw->update( 'externallinks',
                    [
                        'el_index_60' => substr( $row->el_index, 0, 60 ),
                    ],
                    [
                        'el_id' => $row->el_id,
                    ], __METHOD__
                );
            }
            $lbFactory->waitForReplication();
            $start = $end;
        }
        $this->output( "Done, $count rows updated.\n" );
 
        return true;
    }
}
 
$maintClass = PopulateExternallinksIndex60::class;
require_once RUN_MAINTENANCE_IF_MAIN;