public function load(ObjectManager $manager) { $faker = Factory::create(); for ($i = 1; $i <= 24; $i++) { $team = new Team(); $team->setInfo($faker->text(2000)); $country = $this->getReference("country {$i}"); $team->setCountry($country); $this->setReference("team {$i}", $team); $manager->persist($team); $manager->flush(); for ($k = 1; $k <= 11; $k++) { $player = new Player(); $player->setFirstName($faker->firstNameMale); $player->setLastName($faker->lastName); $player->setBiography($faker->text(200)); $player->setDateOfBirthday($faker->date('Y-m-d')); $player->setTeam($team); $team->getPlayers()->add($player); $manager->persist($player); } // the same for coaches for ($k = 1; $k <= 5; $k++) { $coach = new Coach(); $coach->setName($faker->name); $coach->setBiography($faker->text(200)); $coach->setTeam($team); $team->getCoaches()->add($coach); $manager->persist($coach); } } $manager->flush(); }