public function load(ObjectManager $manager) { $game = new Game(); $game->setName('name'); $game->setDeveloper('developer'); $player = new Player(); $player->setName('name'); $score = new Score(); $score->setValue(1); $score->setPlayer($player); $score->setGame($game); $manager->persist($game); $manager->persist($player); $manager->persist($score); $manager->flush(); self::$score = $score; }