How can i use php8 attributes instead of annotations in doctrine?

Question

This is what I would like to use:

#[ORM\Column(type: "string")]

instead of this:

/**
 *  @ORM\Column(type="string")
 */

But I'm getting this error:

(error: Class 'Column' is not annotated with 'Attribute' )

Is it because Doctrine does not support it yet, or am I missing something?

Solution 1

As @Seb33300 says, yes, it's now possible in Doctrine ORM 2.9. But for Symfony you need to do a little bit more than that. Here is a full list of steps to upgrade:

1. Upgrade Doctrine ORM: "doctrine/orm": "^2.9".

2. Upgrade Doctrine Bundle: "doctrine/doctrine-bundle": "^2.4".

3. Set doctrine.orm.mappings.App.type: attribute (by default it's set to annotation):

   # config/packages/doctrine.yaml
   
   doctrine:
     orm:
       mappings:
         App:
           type: attribute
   

4. Apply similar changes to your entities:

   --- Dummy.php.old     Mon Jun 07 00:00:00 2021
   +++ Dummy.php         Mon Jun 07 00:00:00 2021
   @@ -7,15 +7,11 @@
    use App\Repository\DummyRepository;
    use Doctrine\ORM\Mapping as ORM;
   
   -/**
   - * @ORM\Entity(repositoryClass = DummyRepository::class)
   - */
   +#[ORM\Entity(repositoryClass: DummyRepository::class)]
    class Dummy
    {
   -    /**
   -     * @ORM\Id
   -     * @ORM\GeneratedValue
   -     * @ORM\Column(type = 'integer')
   -     */
   +    #[ORM\Id]
   +    #[ORM\GeneratedValue]
   +    #[ORM\Column(type: 'integer')]
        private $id;
    }
   

Solution 2

EDIT: Doctrine 2.9 is now released with PHP 8 attributes support!

PHP 8 annotations have been merged in Doctrine ORM 2.9.x branch which is not released yet: https://github.com/doctrine/orm/pull/8266

Here is the documentation reference related to this feature: https://www.doctrine-project.org/projects/doctrine-orm/en/current/reference/attributes-reference.html

Comments

[Jason Aller]

The change from "annotation" to "attribute" is critical. Thank you for documenting it.

[the_nuts]

Is there any way to allow both, to have a smooth migration for the existing attributes?