fixUserRegistration.php

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<?php
use MediaWiki\User\User;
 
require_once __DIR__ . '/Maintenance.php';
 
class FixUserRegistration extends Maintenance {
    public function __construct() {
        parent::__construct();
        $this->addDescription( 'Fix the user_registration field' );
        $this->setBatchSize( 1000 );
    }
 
    public function execute() {
        $dbw = $this->getDB( DB_PRIMARY );
 
        $lastId = 0;
        do {
            // Get user IDs which need fixing
            $res = $dbw->newSelectQueryBuilder()
                ->select( 'user_id' )
                ->from( 'user' )
                ->where( [ 'user_id > ' . $dbw->addQuotes( $lastId ), 'user_registration' => null ] )
                ->orderBy( 'user_id' )
                ->limit( $this->getBatchSize() )
                ->caller( __METHOD__ )->fetchResultSet();
 
            foreach ( $res as $row ) {
                $id = $row->user_id;
                $lastId = $id;
 
                // Get first edit time
                $actorStore = $this->getServiceContainer()->getActorStore();
                $userIdentity = $actorStore->getUserIdentityByUserId( $id );
                if ( !$userIdentity ) {
                    continue;
                }
 
                $timestamp = $dbw->newSelectQueryBuilder()
                    ->select( 'MIN(rev_timestamp)' )
                    ->from( 'revision' )
                    ->where( [ 'rev_actor' => $userIdentity->getId() ] )
                    ->caller( __METHOD__ )->fetchField();
 
                // Update
                if ( $timestamp !== null ) {
                    $dbw->newUpdateQueryBuilder()
                        ->update( 'user' )
                        ->set( [ 'user_registration' => $timestamp ] )
                        ->where( [ 'user_id' => $id ] )
                        ->caller( __METHOD__ )->execute();
 
                    $user = User::newFromId( $id );
                    $user->invalidateCache();
                    $this->output( "Set registration for #$id to $timestamp\n" );
                } else {
                    $this->output( "Could not find registration for #$id NULL\n" );
                }
            }
            $this->output( "Waiting for replica DBs..." );
            $this->waitForReplication();
            $this->output( " done.\n" );
        } while ( $res->numRows() >= $this->getBatchSize() );
    }
}
 
$maintClass = FixUserRegistration::class;
require_once RUN_MAINTENANCE_IF_MAIN;