DiscountBase::getApplyMode

static function getApplyMode()
{
	$applyMode = self::APPLY_MODE_ADD;
	if ((string)MainConfigOption::get('sale', 'use_sale_discount_only') != 'Y')
	{
		$applyMode = (int)MainConfigOption::get('sale', 'discount_apply_mode');
		if (!in_array($applyMode, self::getApplyModeList(false)))
			$applyMode = self::APPLY_MODE_ADD;
	}
	return $applyMode;
}