UserArray.php

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<?php
namespace MediaWiki\User;
 
use ArrayIterator;
use Iterator;
use MediaWiki\HookContainer\HookRunner;
use MediaWiki\MediaWikiServices;
use Wikimedia\Rdbms\IResultWrapper;
 
abstract class UserArray implements Iterator {
    public static function newFromResult( $res ) {
        $userArray = null;
        $hookRunner = new HookRunner( MediaWikiServices::getInstance()->getHookContainer() );
        if ( !$hookRunner->onUserArrayFromResult( $userArray, $res ) ) {
            return new ArrayIterator( [] );
        }
        return $userArray ?? new UserArrayFromResult( $res );
    }
 
    public static function newFromIDs( $ids ) {
        $ids = array_map( 'intval', (array)$ids ); // paranoia
        if ( !$ids ) {
            // Database::select() doesn't like empty arrays
            return new ArrayIterator( [] );
        }
        $dbr = MediaWikiServices::getInstance()->getDBLoadBalancerFactory()->getReplicaDatabase();
        $res = User::newQueryBuilder( $dbr )
            ->where( [ 'user_id' => array_unique( $ids ) ] )
            ->caller( __METHOD__ )
            ->fetchResultSet();
        return self::newFromResult( $res );
    }
 
    public static function newFromNames( $names ) {
        $names = array_map( 'strval', (array)$names ); // paranoia
        if ( !$names ) {
            // Database::select() doesn't like empty arrays
            return new ArrayIterator( [] );
        }
        $dbr = MediaWikiServices::getInstance()->getDBLoadBalancerFactory()->getReplicaDatabase();
        $res = User::newQueryBuilder( $dbr )
            ->where( [ 'user_name' => array_unique( $names ) ] )
            ->caller( __METHOD__ )
            ->fetchResultSet();
        return self::newFromResult( $res );
    }
 
    abstract public function current(): User;
 
    abstract public function key(): int;
}
 
class_alias( UserArray::class, 'UserArray' );