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<?php
namespace SilverCommerce\Discounts\Extensions;
use SilverStripe\ORM\DataExtension;
use SilverCommerce\Discounts\Model\AppliedDiscount;
class LineItemExtension extends DataExtension
{
private static $belongs_many_many = [
$belongs_many_many
'Discounts' => AppliedDiscount::class
];
/**
* Get the amount of tax for a single unit of this item
*
* @return float
*/
public function updateUnitTax(&$total)
$percent = $this->getOwner()->TaxPercentage;
$price = $this->getOwner()->UnitPrice;
$total = (($price - $this->getDiscountTotal()) / 100) * $percent;
return $total;
}
public function getDiscountTotal()
$parent = $this->getOwner()->Parent();
$total = $parent->getDiscountTotal();
$count = $parent->getTotalItems();
if ($count > 0) {
return $total/$count;
return 0;
silvercommerce /
discounts
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