ScheduleProvider::buildCachedKeyForScheduleByUser

private function buildCachedKeyForScheduleByUser($userId, $options)
{
	$key = $userId;
	if (is_array($options) && isset($options['select']) && is_array($options['select']))
	{
		foreach ($options['select'] as $fieldToSelect)
		{
			$key .= '_' . $fieldToSelect;
		}
	}
	return $key;
}