Before & After prices in templates

[sanderha]

Hello

I've created a Discount and added some products to it, that should be affected by this discount. What is the smartest way to create Before/after prices in templates to reflect the discount the customer will receive?

[wernerkrauss]

@sanderha did you find any solution? If yes, can you share it?

[sanderha]

@wernerkrauss If using the discounts module, to be able to show before/after price we have to calculate it for each item. Not sure which project I did that on.

On other shop projects I ended up creating a specific "BeforePrice" field on Product, because that was much easier to understand for a client, as they almost never need the complex discount functionality of this module

EDIT:
I found this code, not sure how good it is.

    /**
     * A bunch of this code is taken from \Shop\Discount\Calculator::calculate()
     *
     * @return int
     */
    public function calcAfterDiscountPrice()
    {
        $classname = $this->owner->ClassName;
        $total = 0;

        // if its not a Product it'll be an OrderItem
        $orderitem = $classname === 'Product' ? $this->owner->Item() : $this->owner;
        $orderitem->setQuantity(1); // else it will take quantity from cart, we just want a basic discount per item for showing
        $infoitem = new ItemPriceInfo($orderitem);

        $discount = $this->getActiveDiscount();

        if (!$discount) {
            return $total;
        }

        // item discounts will update info items
        $action = $discount->Type === "Percent" ?
            new \ItemPercentDiscount([$infoitem], $discount) :
            new \ItemFixedDiscount([$infoitem], $discount);

        $action->perform();


        // select best item-level discounts
        $bestadjustment = $infoitem->getBestAdjustment();

        if ($bestadjustment) {
            $amount = $bestadjustment->getValue();

            // prevent discounting more than original price
            if ($amount > $infoitem->getOriginalTotal()) {
                $amount = $infoitem->getOriginalTotal();
            }

            $total += $amount;
        }

        $total = $classname === 'Product' ? $this->owner->sellingPrice() - $total : $this->owner->UnitPrice() - $total;

        return $total;
    }