プラグインからの追加サンプル

app/Plugin/PurchaseProcessors/Processor/EmptyProcessor.php

@@ -0,0 +1,20 @@
+<?php
+
+namespace Plugin\PurchaseProcessors\Processor;
+
+use Eccube\Entity\ItemInterface;
+use Eccube\Service\PurchaseFlow\ItemProcessor;
+use Eccube\Service\PurchaseFlow\ProcessResult;
+
+class EmptyProcessor implements ItemProcessor
+{
+    /**
+     * @param ItemInterface $item
+     * @return ProcessResult
+     */
+    public function process(ItemInterface $item)
+    {
+        log_info('empty processor executed', [__METHOD__]);
+        return ProcessResult::success();
+    }
+}

app/Plugin/PurchaseProcessors/Processor/ValidatableEmptyProcessor.php

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+<?php
+
+namespace Plugin\PurchaseProcessors\Processor;
+
+use Eccube\Entity\ItemInterface;
+use Eccube\Service\PurchaseFlow\ItemValidateException;
+use Eccube\Service\PurchaseFlow\ValidatableItemProcessor;
+
+class ValidatableEmptyProcessor extends ValidatableItemProcessor
+{
+    protected function validate(ItemInterface $item)
+    {
+        $error = false;
+        if ($error) {
+            throw new ItemValidateException('ValidatableEmptyProcessorのエラーです');
+        }
+    }
+
+    protected function handle(ItemInterface $item)
+    {
+        $item->setQuantity(100);
+    }
+}

app/Plugin/PurchaseProcessors/ServiceProvider/PurchaseProcessorsServiceProvider.php

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+<?php
+
+namespace Plugin\PurchaseProcessors\ServiceProvider;
+
+use Doctrine\Common\Collections\ArrayCollection;
+use Pimple\Container;
+use Pimple\ServiceProviderInterface;
+use Plugin\PurchaseProcessors\Processor\EmptyProcessor;
+use Plugin\PurchaseProcessors\Processor\ValidatableEmptyProcessor;
+
+class PurchaseProcessorsServiceProvider implements ServiceProviderInterface
+{
+    public function register(Container $app)
+    {
+        $app->extend(
+            'eccube.purchase.flow.cart.item_processors',
+            function (ArrayCollection $processors, Container $app) {
+                $processors[] = new EmptyProcessor();
+                $processors[] = new ValidatableEmptyProcessor();
+                return $processors;
+            }
+        );
+    }
+}

app/Plugin/PurchaseProcessors/config.yml

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+name: PurchaseFlowにProcessorを追加するサンプル
+code: PurchaseProcessors
+version: 1.0.0
+service:
+    - PurchaseProcessorsServiceProvider