【EC-CUBE4 】商品編集時に商品説明文が空白の場合、デフォルト文を登録する。

<?php

/*
 * This file is part of EC-CUBE
 *
 * Copyright(c) EC-CUBE CO.,LTD. All Rights Reserved.
 *
 * http://www.ec-cube.co.jp/
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Customize\Event\Admin;

use Doctrine\ORM\EntityManagerInterface;
use Eccube\Event\EccubeEvents;
use Eccube\Event\EventArgs;
use Symfony\Component\EventDispatcher\EventSubscriberInterface;

class ProductEvent implements EventSubscriberInterface
{
    public function __construct(EntityManagerInterface $entityManager)
    {
        $this->entityManager = $entityManager;
    }

    /**
    * @return array The event names to listen to
    */
   public static function getSubscribedEvents()
   {
       return [
           EccubeEvents::ADMIN_PRODUCT_EDIT_COMPLETE => 'comp'
       ];
   }

   /**
    * 商品登録完了時の処理
    */
   public function comp(EventArgs $event)
   {
       $auguments = $event->getArguments();
       $Product = $auguments['Product'];
       if(!$Product->getDescriptionDetail()) {
           $Product->setDescriptionDetail('テスト説明');
           $this->entityManager->flush($Product);
       }
   }
}