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Signed-off-by: Alexander M. Turek <me@derrabus.de>
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57
src/Symfony/Component/Form/Extension/Core/Type/EnumType.php
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,57 @@ | ||
| <?php | ||
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| /* | ||
| * This file is part of the Symfony package. | ||
| * | ||
| * (c) Fabien Potencier <fabien@symfony.com> | ||
| * | ||
| * For the full copyright and license information, please view the LICENSE | ||
| * file that was distributed with this source code. | ||
| */ | ||
|
|
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| namespace Symfony\Component\Form\Extension\Core\Type; | ||
|
|
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| use Symfony\Component\Form\AbstractType; | ||
| use Symfony\Component\OptionsResolver\Options; | ||
| use Symfony\Component\OptionsResolver\OptionsResolver; | ||
|
|
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| /** | ||
| * A choice type for native PHP enums. | ||
| * | ||
| * @author Alexander M. Turek <me@derrabus.de> | ||
| */ | ||
| final class EnumType extends AbstractType | ||
| { | ||
| public function configureOptions(OptionsResolver $resolver): void | ||
| { | ||
| $resolver | ||
| ->setRequired(['class']) | ||
| ->setAllowedTypes('class', 'string') | ||
| ->setAllowedValues('class', \Closure::fromCallable('enum_exists')) | ||
| ->setDefault('choices', static function (Options $options): array { | ||
| return $options['class']::cases(); | ||
| }) | ||
| ->setDefault('choice_label', static function (\UnitEnum $choice): string { | ||
| return $choice->name; | ||
| }) | ||
| ->setDefault('choice_value', static function (Options $options): ?\Closure { | ||
| if (!is_a($options['class'], \BackedEnum::class, true)) { | ||
| return null; | ||
| } | ||
|
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| return static function (?\BackedEnum $choice): ?string { | ||
| if (null === $choice) { | ||
| return null; | ||
| } | ||
|
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| return (string) $choice->value; | ||
| }; | ||
| }) | ||
| ; | ||
| } | ||
|
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| public function getParent(): string | ||
| { | ||
| return ChoiceType::class; | ||
| } | ||
| } |
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