Doctrine 2: How to update one-to-one bidirectional - php

Question

I have problem with updating one-to-one bidirectional association.
User Entity
/**
*
* #ORM\Table(name="test_user")
*/
class User
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
private $id;
/**
* #var string
*
* #ORM\Column(name="login", type="string", length=32, nullable=false, unique=true)
*/
private $login;
/**
*
* #ORM\OneToOne(targetEntity="Points", mappedBy="user", cascade={"persist"})
*/
private $points;
...
/**
* Set points
*/
public function setPoints(array $points)
{
$this->points = new Points($points);
$this->points->setUser($this);
return $this;
}
/**
* Get points
*/
public function getPoints()
{
return $this->points;
}
}
Points Entity
/**
* Points
*
* #ORM\Table(name="test_user_points")
* #ORM\Entity
*/
class Points {
/**
* #var integer
*
* #ORM\Column(name="id", type="integer", nullable=false)
* #ORM\Id
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
private $id;
/**
* #var integer
*
* #ORM\Column(type="integer", nullable=false)
*/
private $points;
/**
* #var string
*
* #ORM\Column(name="period", type="string", length=24)
*/
private $period;
/**
* #var User
*
* #ORM\OneToOne(targetEntity="User", inversedBy="points")
* #ORM\JoinColumn(name="user_id", referencedColumnName="id",onDelete="CASCADE", nullable=false)
*/
private $user;
/**
* Constructor
*/
public function __construct(array $params = array())
{
$hydrator = new MyHydrator();
$hydrator->hydrate($params, $this);
}
...
/**
* Set user
*
* #param User $user
*/
public function setUser(User $user = null)
{
$this->user = $user;
return $this;
}
/**
* Get user
*
* #return User
*/
public function getUser()
{
return $this->user;
}
}
Class MyHydrator is converting from array(first param) to object(second param). It is very important and I have to use it.
My save function looks like this:
public function save(array $data)
{
...
// This is how my input data looks
$data = array(
'login' => 'Test',
array(
'points' => 999,
'period' => 'monthly'
)
);
if ($userExists) {
// UPDATE
$hydrator = new MyHydrator();
$hydrator->hydrate($data, $userExists);
$this->em->persist($userExists);
$this->em->flush();
} else {
// INSERT
$user = new User($data);
$this->em->persist($user);
$this->em->flush();
}
}
Inserting to database works perfect, but when I try to update record I get error:
SQLSTATE[23000]: Integrity constraint violation: 1062 Duplicate entry '4' for key 'UNIQ_DAD93D6EA76ED395'
4 is a value of user_id column in points table
How can I edit existing record without error about duplicate id?

Answer 1

It's old but since I encoutered a similar issue, I resolved it this way :
in User
public function setPoints($points)
{
if ($this->points !== null) {
$this->points->setUser(null);
}
$this->points = $points;
$points->setUser($this);
}