OneToOne Symfomy2&Doctrine

Question

I need to save user with his profile fields. I establish relations. User has one Profile, Profile has one User. I add fields to register form. But when I saving object, I get error, Undefined index: profile in /var/www/Symfony/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php line 2714 . Where my mistake, please help me. I am newbie) Here is the code: namespace Acme\UserBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * Profile
 *
 * @ORM\Table(name="acme_profile")
 * @ORM\Entity
 */
class Profile
{
    /**
     * @var integer
     *
     * @ORM\Column(name="id", type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;


    /**
     * @ORM\Column(name="fio", type="string", length=255)
     */
    protected $fio;


    /**
     * @ORM\Column(name="birthDate", type="date")
     */
    protected $birthDate;

    /**
    * @ORM\OneToOne(targetEntity="Acme\UserBundle\Entity\User", cascade={"persist"})
     * @ORM\JoinColumn(name="user_id", referencedColumnName="id")
     */
    protected $user;

    /**
     * Get id
     *
     * @return integer 
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * @return mixed
     */
    public function getFio()
    {
        return $this->fio;
    }

    /**
     * @param $fio
     * @return $this
     */
    public function setFio($fio)
    {
        $this->fio = $fio;

        return $this;
    }

    /**
     * @return mixed
     */
    public function getBirthDate()
    {
        return $this->birthDate;
    }

    /**
     * @param $birthDate
     * @return $this
     */
    public function setBirthDate($birthDate)
    {
        $this->birthDate = $birthDate;

        return $this;
    }

    /**
     * @return mixed
     */
    public function getUser()
    {
        return $this->user;
    }

    /**
     * @param User $user
     * @return $this
     */
    public function setUser(User $user = null)
    {
        $this->user = $user;

        return $this;
    }

}

namespace Acme\UserBundle\Entity;

use FOS\UserBundle\Model\User as BaseUser;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Validator\Constraints as Assert;

/**
 * @ORM\Entity
 * @ORM\Table(name="acme_user")
 */
class User extends BaseUser
{
    /**
     * @ORM\Id
     * @ORM\Column(type="integer")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;

    /**
     * @ORM\OneToOne(targetEntity="Acme\UserBundle\Entity\Profile", cascade={"persist"})
     */
    protected $profile;

    public function __construct()
    {
        parent::__construct();
    }

    public function setProfile(Profile $profile = null)
    {
        $this->profile = $profile;

        return $this;
    }

    public function getProfile()
    {
        return $this->profile;
    }
}

namespace Acme\UserBundle\Form\Type;

use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolverInterface;

class RegistrationFormType extends AbstractType
{
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        // add your custom field
        $builder->add('profile', new ProfileType());
    }

    public function getParent()
    {
        return 'fos_user_registration';
    }

    public function getName()
    {
        return 'acme_user_registration';
    }

    /**
     * @param OptionsResolverInterface $resolver
     */
    public function setDefaultOptions(OptionsResolverInterface $resolver)
    {
        $resolver->setDefaults(array(
            'data_class' => 'Acme\UserBundle\Entity\User'
        ));
    }
}

Answer 1

You should use the MappedBy and InversedBy as specified in the documentation here : http://docs.doctrine-project.org/en/2.0.x/reference/association-mapping.html#owning-side-and-inverse-side

 /**
  * @ORM\OneToOne(targetEntity="Acme\UserBundle\Entity\Profile",        
    mappedBy="user"))
  */

and the other side you use :

 /**
 * @ORM\OneToOne(targetEntity="Acme\UserBundle\Entity\User", inversedBy="profile" cascade={"persist"})
 * @ORM\JoinColumn(name="user_id", referencedColumnName="id")
 */