* refactored with entity service, so the code can be tested

config/autoload/dependencies.global.php

@@ -21,6 +21,7 @@ return [
             Helper\UrlHelper::class => Helper\UrlHelperFactory::class,
             'doctrine.entity_manager.orm_default' => \ContainerInteropDoctrine\EntityManagerFactory::class,
             'doctrine.hydrator' => \App\Hydrator\DoctrineObjectFactory::class,
+            \App\Service\Article\ArticleService::class => \App\Service\Article\ArticleServiceFactory::class,
         ],
     ],
 ];