which::getMapReferenceAttributes

static function getMapReferenceAttributes()
{
	$fields = User::getFieldsForSelect();

	return [
		self::REF_USER => [
			'class' => User::class,
			'select' => $fields,
			'load' => function(self $documentSession){
				return User::loadById($documentSession->getUserId());
			},
		],
		self::REF_OWNER => [
			'class' => User::class,
			'select' => $fields,
			'load' => function(self $documentSession){
				return User::loadById($documentSession->getOwnerId());
			},
		],
		self::REF_OBJECT => [
			'class' => File::class,
			'load' => function(self $documentSession){
				return File::loadById($documentSession->getObjectId());
			},
		],
		self::REF_VERSION => [
			'class' => Version::class,
			'load' => function(self $documentSession){
				return Version::loadById($documentSession->getVersionId());
			},
		],
		self::REF_INFO => [
			'class' => DocumentInfo::class,
			'load' => function(self $documentSession){
				return DocumentInfo::loadById($documentSession->getExternalHash());
			},
		],
	];
}