OrderFixedAmountOff.php in Commerce Currency Resolver 8

Namespace

Drupal\commerce_currency_resolver\Plugin\Commerce\PromotionOffer

File

src/Plugin/Commerce/PromotionOffer/OrderFixedAmountOff.php

<?php

namespace Drupal\commerce_currency_resolver\Plugin\Commerce\PromotionOffer;

use Drupal\commerce_currency_resolver\Plugin\Commerce\CommerceCurrencyResolverAmountTrait;
use Drupal\commerce_promotion\Plugin\Commerce\PromotionOffer\OrderFixedAmountOff as CommerceOrderFixedAmountOff;
use Drupal\commerce_order\Adjustment;
use Drupal\commerce_promotion\Entity\PromotionInterface;
use Drupal\Core\Entity\EntityInterface;

/**
 * Provides the fixed amount off offer for orders with multi-currency support.
 *
 * @see \Drupal\commerce_promotion\Plugin\Commerce\PromotionOffer\OrderFixedAmountOff
 */
class OrderFixedAmountOff extends CommerceOrderFixedAmountOff {
  use CommerceCurrencyResolverAmountTrait;

  /**
   * {@inheritdoc}
   */
  public function apply(EntityInterface $entity, PromotionInterface $promotion) {

    // Nothing to do. Go to parent.
    if (!$this
      ->shouldCurrencyRefresh($this
      ->getAmount()
      ->getCurrencyCode())) {
      return parent::apply($entity, $promotion);
    }
    $this
      ->assertEntity($entity);

    /** @var \Drupal\commerce_order\Entity\OrderInterface $order */
    $order = $entity;
    $subtotal_price = $order
      ->getSubTotalPrice();
    $amount = $this
      ->getPrice($this
      ->getAmount());

    // The promotion amount can't be larger than the subtotal, to avoid
    // potentially having a negative order total.
    if ($amount
      ->greaterThan($subtotal_price)) {
      $amount = $subtotal_price;
    }

    // Split the amount between order items.
    $amounts = $this->splitter
      ->split($order, $amount);
    foreach ($order
      ->getItems() as $order_item) {
      if (isset($amounts[$order_item
        ->id()])) {
        $order_item
          ->addAdjustment(new Adjustment([
          'type' => 'promotion',
          'label' => $promotion
            ->getDisplayName() ?: $this
            ->t('Discount'),
          'amount' => $amounts[$order_item
            ->id()]
            ->multiply('-1'),
          'source_id' => $promotion
            ->id(),
        ]));
      }
    }
  }

}

Classes

Name	Description
OrderFixedAmountOff	Provides the fixed amount off offer for orders with multi-currency support.