EventHandler::isSelectedPersonalGroup

static function isSelectedPersonalGroup(int $userId, ConditionTree $join): bool
{
	$selectedGroup =
		OptionUserTable::query()
			->addSelect('USER_ID')
			->registerRuntimeField(
				'OPTION_ACCESS',
				new Reference(
					'OPTION_ACCESS',
					OptionAccessTable::class,
					$join,
					['join_type' => Join::TYPE_INNER]
				)
			)
			->where('USER_ID', $userId)
			->where('OPTION_ACCESS.ACCESS_CODE', 'U' . $userId)
			->fetch();

	return $selectedGroup !== false;
}