Doctrine 2 update from entity
$data = new ATest(); // ATest is my entitity class
$data->id = 1; // id 1 already exists in the database, I just want to update this row
$data->name = "ORM Tested"; // just change the name

$entityManager->persist($data);
$entityManager->flush();

$entityManager->merge($data)

$data = new MyEntity();
$data->setId(123);
$data->setName('test');

$entityManager->merge($data);
$entityManager->flush();