Symfony2 implement PATCH method to update user fileds - json

Question

How can I update FOS USER user details using PATCH method. So when I pass partial details in Json, only these details are updated.
User entity
/**
* #ORM\Entity
* #ORM\Table(name="user")
*/
abstract class User extends BaseUser
{
/**
* #var int
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* #var string]
* #ORM\Column(name="first_name", type="string", length=255, nullable=true)
*/
private $firstName;
/**
* #var string
* #ORM\Column(name="last_name", type="string", length=255, nullable=true)
*/
private $lastName;
// getters and setters are here
}
For example. I have user Jack Nickolson and my json is:
{"firstName": "John"}
Only first name is updated.
This is my controller. How do I set new parameters to user, without specifing which parameters?
/**
* #Route("/update", name="api_user_update")
* #Security("has_role('ROLE_USER')")
* #Method("PATCH")
*/
public function updateAction(Request $request){
$jsonContent = $request->getContent();
$params = json_decode($jsonContent);
$em = $this->getDoctrine()->getEntityManager();
$response = new JsonResponse();
$user = $this->getUser();
// do something to update user details
$this->get('fos_user.user_manager')->updateUser($user);
$em->persist($user);
$em->flush();
$response->setContent([
"status" => "user ". $user->getUsername() ." is updated"
]);
return $response;
}
UPDATE
I tried to use an answer below, so this what I have now
public function updateAction(Request $request){
$em = $this->getDoctrine()->getEntityManager();
$response = new JsonResponse();
$user = $this->getUser();
$editForm = $this->createForm('CoreBundle\Form\UserType', $user);
$requestData = $request->getContent();
$requestData = json_encode($requestData, true);
$editForm->submit($requestData, false);
$this->get('fos_user.user_manager')->updateUser($user);
$em->persist($user);
$em->flush();
$response->setContent([
"status" => "user ". $user->getUsername() ." is updated"
]);
return $response;
}
Well, my entity was not updated. What am I doing wrong?

Answer 1

You need to prepare and create UserType form for partial updated.
Then, when processing a submitted form, you'll need to pass a false $clearMissing option to your form's submit method call in the controller:
$form->submit($request, false);
Thanks to that option the form component will only update the fields passed from the request.
and then flush user:
$em->flush();
Also if you want send data like:
{"firstName": "John"}
your UserType form should have method:
public function getBlockPrefix()
{
return "";
}
You can also use nice and powerfull https://github.com/FriendsOfSymfony/FOSRestBundle