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<?php |
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/* |
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* This file is part of EC-CUBE |
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* |
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* Copyright(c) EC-CUBE CO.,LTD. All Rights Reserved. |
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* |
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* http://www.ec-cube.co.jp/ |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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namespace Eccube\Service\PurchaseFlow\Processor; |
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use Doctrine\DBAL\LockMode; |
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use Doctrine\ORM\EntityManagerInterface; |
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use Doctrine\ORM\PessimisticLockException; |
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use Doctrine\ORM\OptimisticLockException; |
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use Eccube\Entity\ItemHolderInterface; |
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use Eccube\Entity\Order; |
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use Eccube\Entity\ProductClass; |
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use Eccube\Entity\ProductStock; |
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use Eccube\Exception\ShoppingException; |
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use Eccube\Repository\ProductStockRepository; |
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use Eccube\Service\PurchaseFlow\PurchaseContext; |
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/** |
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* 在庫制御. |
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*/ |
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class StockReduceProcessor extends AbstractPurchaseProcessor |
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{ |
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/** |
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* @var ProductStockRepository |
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*/ |
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protected $productStockRepository; |
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/** |
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* @var EntityManagerInterface |
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*/ |
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protected $entityManager; |
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/** |
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* StockReduceProcessor constructor. |
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* |
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* @param ProductStockRepository $productStockRepository |
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* @param EntityManagerInterface $entityManager |
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*/ |
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public function __construct(ProductStockRepository $productStockRepository, EntityManagerInterface $entityManager) |
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{ |
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$this->productStockRepository = $productStockRepository; |
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$this->entityManager = $entityManager; |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function prepare(ItemHolderInterface $itemHolder, PurchaseContext $context) |
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{ |
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$this->setStockForEachProductClass($itemHolder, function ($currentStock, $itemQuantity) { |
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return $currentStock - $itemQuantity; |
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}); |
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} |
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/** |
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* {@inheritdoc} |
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*/ |
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public function rollback(ItemHolderInterface $itemHolder, PurchaseContext $context) |
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{ |
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$this->setStockForEachProductClass($itemHolder, function ($currentStock, $itemQuantity) { |
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return $currentStock + $itemQuantity; |
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}); |
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} |
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/** |
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* @param ItemHolderInterface $itemHolder |
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* @param callable $callback |
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* @throws OptimisticLockException |
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* @throws PessimisticLockException |
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* @throws ShoppingException |
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*/ |
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private function setStockForEachProductClass(ItemHolderInterface $itemHolder, callable $callback) |
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{ |
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// Order以外の場合は何もしない |
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if (!$itemHolder instanceof Order) { |
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return; |
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} |
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$productClasses = $this->createProductClassesForEachId($itemHolder); |
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foreach ($productClasses as $productClassId => $quantity) { |
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$ProductClass = $this->entityManager->find(ProductClass::class, $productClassId); |
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$productStock = $ProductClass->getProductStock(); |
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$stock = $callback($productStock->getStock(), $quantity); |
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if ($stock < 0) { |
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throw new ShoppingException(trans('purchase_flow.over_stock', ['%name%' => $ProductClass->formattedProductName()])); |
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} |
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$productStock->setStock($stock); |
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$ProductClass->setStock($stock); |
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} |
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} |
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/** |
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* @param ItemHolderInterface $itemHolder |
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* @return array |
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* @throws OptimisticLockException |
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* @throws PessimisticLockException |
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*/ |
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private function createProductClassesForEachId(ItemHolderInterface $itemHolder) |
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{ |
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$productClasses = []; |
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foreach ($itemHolder->getProductOrderItems() as $item) { |
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// 在庫が無制限かチェックし、制限ありなら在庫数をチェック |
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if (!$item->getProductClass()->isStockUnlimited()) { |
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// 在庫チェックあり |
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/* @var ProductStock $productStock */ |
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$productStock = $item->getProductClass()->getProductStock(); |
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// 在庫に対してロックを実行 |
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$this->entityManager->lock($productStock, LockMode::PESSIMISTIC_WRITE); |
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$this->entityManager->refresh($productStock); |
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$ProductClass = $item->getProductClass(); |
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if (!array_key_exists($ProductClass->getId(), $productClasses)) { |
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$productClasses[$ProductClass->getId()] = 0; |
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} |
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$productClasses[$ProductClass->getId()] += (int) $item->getQuantity(); |
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} |
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} |
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return $productClasses; |
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} |
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} |
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EC-CUBE /
ec-cube
Let’s take a look at an example:
In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break.
Available Fixes
Change the type-hint for the parameter:
Add an additional type-check:
Add the method to the interface: