wikimedia/mediawiki-extensions-Wikibase

<?php declare( strict_types=1 );

namespace Wikibase\Repo\RestApi\Application\Serialization;

use ArrayObject;
use Wikibase\Repo\RestApi\Domain\ReadModel\StatementList;

/**
 * @license GPL-2.0-or-later
 */
class StatementListSerializer {

    private StatementSerializer $statementSerializer;

    public function __construct( StatementSerializer $statementSerializer ) {
        $this->statementSerializer = $statementSerializer;
    }

    public function serialize( StatementList $statementList ): ArrayObject {
        $serialization = new ArrayObject();

        foreach ( $statementList as $statement ) {
            $propertyId = $statement->getProperty()->getId()->getSerialization();
            $serialization[$propertyId][] = $this->statementSerializer->serialize( $statement );
        }

        return $serialization;
    }

}