public function load(ObjectManager $manager)
 {
     $task1 = new Task();
     $task1->setUser($manager->merge($this->getReference('user_one')));
     $task1->setName('Setup Computer');
     $task1->setStatus(4);
     $task1->setTag('task A');
     $task1->setStartAt(new \DateTime('-3 days'));
     $task1->setFinishAt(new \DateTime('-2 days'));
     $task1->setContent('Setup the new computer!');
     $task2 = new Task();
     $task2->setUser($manager->merge($this->getReference('user_two')));
     $task2->setName('Install all software as required');
     $task2->setStatus(5);
     $task1->setTag('task B');
     $task2->setStartAt(new \DateTime('-2 days'));
     $task2->setFinishAt(new \DateTime('-1 days'));
     $task2->setContent('Install all software for the new computere');
     $task3 = new Task();
     $task3->setName('Setup Table');
     $task3->setUser($manager->merge($this->getReference('user_three')));
     $task3->setStatus(3);
     $task1->setTag('task A');
     $task3->setStartAt(new \DateTime('-1 days'));
     $task3->setFinishAt(new \DateTime());
     $task3->setContent('Install tables for the computer!');
     $task4 = new Task();
     $task4->setName('Prepare the stationary for staffs');
     $task4->setUser($manager->merge($this->getReference('user_one')));
     $task4->setStatus(2);
     $task1->setTag('task A');
     $task4->setStartAt(new \DateTime('+2 days'));
     $task4->setFinishAt(new \DateTime('+3 days'));
     $task4->setContent('Collect all stationary for staffs!');
     $task5 = new Task();
     $task5->setUser($manager->merge($this->getReference('user_three')));
     $task5->setName('Grab chair for staff');
     $task5->setStatus(1);
     $task1->setTag('task C');
     $task5->setStartAt(new \DateTime('+4 days'));
     $task5->setFinishAt(new \DateTime('+5 days'));
     $task5->setContent('Get chair for staff!');
     $manager->persist($task1);
     $manager->persist($task2);
     $manager->persist($task3);
     $manager->persist($task4);
     $manager->persist($task5);
     $manager->flush();
 }