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();
}