wikimedia / mediawiki

maintenance/fixUserRegistration.php

<?php

For compatibility and reusability of your code, PSR1 recommends that a file should introduce either new symbols (like classes, functions, etc.) or have side-effects (like outputting something, or including other files), but not both at the same time. The first symbol is defined on line 32 and the first side effect is on line 25.

/**
 * Fix the user_registration field.
 * In particular, for values which are NULL, set them to the date of the first edit
 *
 * 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
 * @ingroup Maintenance
 */

require_once __DIR__ . '/Maintenance.php';

/**
 * Maintenance script that fixes the user_registration field.
 *
 * @ingroup Maintenance
 */
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_MASTER );

		$lastId = 0;
		do {
			// Get user IDs which need fixing
			$res = $dbw->select(
				'user',
				'user_id',
				[
					'user_id > ' . $dbw->addQuotes( $lastId ),
					'user_registration IS NULL'
				],
				__METHOD__,
				[
					'LIMIT' => $this->mBatchSize,
					'ORDER BY' => 'user_id',
				]
			);
			foreach ( $res as $row ) {
				$id = $row->user_id;
				$lastId = $id;
				// Get first edit time
				$timestamp = $dbw->selectField(
					'revision',
					'MIN(rev_timestamp)',
					[ 'rev_user' => $id ],
					__METHOD__
				);
				// Update
				if ( $timestamp !== null ) {
					$dbw->update(
						'user',
						[ 'user_registration' => $timestamp ],
						[ 'user_id' => $id ],
						__METHOD__
					);
					$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..." );
			wfWaitForSlaves();

The function wfWaitForSlaves() has been deprecated with message: since 1.27 Use LBFactory::waitForReplication

			$this->output( " done.\n" );
		} while ( $res->numRows() >= $this->mBatchSize );
	}
}

$maintClass = "FixUserRegistration";
require_once RUN_MAINTENANCE_IF_MAIN;