public function load(ObjectManager $manager)
{
$u1 = new User();
$u1->setUsername('admin');
$u1->setGender(1);
$u1->setEmail("*****@*****.**");
$u1->setCreationDate(new \DateTime('now'));
$u1->setModificationDate(new \DateTime('now'));
$t1 = new Topic();
$t1->setTitle('first topic');
$t1->setAnthorId(1);
$t1->setAgree(1);
$t1->setDisagree(0);
$t1->setContent('long long long string');
$t1->setModificationDate(new \DateTime('now'));
$t1->setCreationDate(new \DateTime('now'));
$manager->persist($u1);
$manager->persist($t1);
$manager->flush();
}
