public function load(ObjectManager $manager)
 {
     foreach ($this->fixtures as $file) {
         /** @var SplFileInfo $file */
         $fixture = json_decode($file->getContents());
         $project = new Project();
         $project->setName($fixture->name);
         $project->setDescription($fixture->description);
         $project->setIdentifier($fixture->identifier);
         $project->setSlackWebhook($fixture->slackWebhook);
         $project->setOwner($this->getReference('user-' . $fixture->owner));
         if (isset($fixture->users)) {
             foreach ($fixture->users as $userName) {
                 /** @var User $user */
                 $user = $this->getReference('user-' . $userName);
                 $project->addUser($user);
             }
         }
         $manager->persist($project);
         $this->addReference('project-' . $project->getIdentifier(), $project);
     }
     $manager->flush();
 }