使用延续的关系扩展Symfony中的实体

// src/Entity/User.php

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 */
class User
{
    /**
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @ORM\Column(type="string", length=255)
     */
    private $username;

    /**
     * @ORM\OneToOne(targetEntity="UserProfile", mappedBy="user", cascade={"persist", "remove"})
     */
    private $profile;

    // Getters and Setters
}

// src/Entity/UserProfile.php

namespace App\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 */
class UserProfile
{
    /**
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @ORM\Column(type="string", length=255)
     */
    private $bio;

    /**
     * @ORM\OneToOne(targetEntity="User", inversedBy="profile")
     * @ORM\JoinColumn(name="user_id", referencedColumnName="id")
     */
    private $user;

    // Getters and Setters
}

$user = new User();
$user->setUsername('john_doe');

$userProfile = new UserProfile();
$userProfile->setBio('This is John Doe\'s bio.');

$user->setProfile($userProfile);
$userProfile->setUser($user);

$entityManager = $this->getDoctrine()->getManager();
$entityManager->persist($user);
$entityManager->flush();

$user = $entityManager->getRepository(User::class)->find($userId);
$userProfile = $user->getProfile();

php bin/console make:migration
php bin/console doctrine:migrations:migrate