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how to use enum with multiple values in Assert\Choice ? #47691

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kconde2 asked this question in Q&A
how to use enum with multiple values in Assert\Choice ? #47691
@kconde2 kconde2
Sep 26, 2022 · 1 comments · 5 replies
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kconde2
Sep 26, 2022 

enum RoleEnum: string
{
    case ADMIN = 'ROLE_ADMIN';
    case USER = 'ROLE_USER';
}
class User {
    #[Assert\Choice(choices: RoleEnum::cases(), multiple: true)] // <- this is not working
    private array $roles = [];
}

I have this error message
image

Environnement
Symfony 6.1.4
php 8.1.10
Thanks in advance for helping me
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Replies: 1 comment · 5 replies

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MatTheCat
Sep 26, 2022 

use Symfony\Component\Validator\Constraints\Type;

class User {
    #[All(new Type(RoleEnum::class))]
    private array $roles = [];
}

should do the trick.
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5 replies
@kconde2
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kconde2 Sep 26, 2022
Author

I got this
image
@kconde2
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kconde2 Sep 26, 2022
Author

It's not working even with correct roles. Here I'm using Api Platform
image
@MatTheCat
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MatTheCat Sep 26, 2022

Well RoleEnum::cases returns instances of RoleEnum but you're validating a string...

See #43047 for a discussion and solutions about your use-case.
@kconde2
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kconde2 Sep 27, 2022
Author

I will see there.

Thanks for your help.
@kconde2
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kconde2 Sep 27, 2022
Author

@MatTheCat

I finally did this

 #[Assert\Choice(callback: [RoleEnum::class, 'values'] , multiple: true')]

And inside RoleEnum.php

 public static function values(): array
 {
     return array_column(self::cases(), 'value');
 }

Reference here : #43047 (comment)

Thanks again for your help.
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