Calculator::resolveTypeName

static function resolveTypeName($value)
{
	switch ($value)
	{
		case self::SALE_TYPE_DAY_OFFSET:
			return self::SALE_NAME_DAY_OFFSET;
		case self::SALE_TYPE_WEEK_OFFSET:
			return self::SALE_NAME_WEEK_OFFSET;
		case self::SALE_TYPE_MONTH_OFFSET:
			return self::SALE_NAME_MONTH_OFFSET;
		case self::SALE_TYPE_YEAR_OFFSET:
			return self::SALE_NAME_YEAR_OFFSET;
	}

	return null;
}