public function load(ObjectManager $manager)
 {
     $templatesData = $this->loadDataFiles('templates.csv');
     foreach ($templatesData as $name => $row) {
         $entity = new Entity\Template();
         $entity->setName($row['name']);
         $entity->setGame($this->getReference($row['game']));
         $this->setReference($name, $entity);
         $manager->persist($entity);
     }
     $manager->flush();
 }