94 lines
3.5 KiB
PHP
94 lines
3.5 KiB
PHP
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<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\HttpKernel\Controller\ArgumentResolver;
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use Symfony\Component\HttpFoundation\Request;
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use Symfony\Component\HttpKernel\Controller\ArgumentValueResolverInterface;
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use Symfony\Component\HttpKernel\Controller\ValueResolverInterface;
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use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
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use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
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/**
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* Attempt to resolve backed enum cases from request attributes, for a route path parameter,
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* leading to a 404 Not Found if the attribute value isn't a valid backing value for the enum type.
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*
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* @author Maxime Steinhausser <maxime.steinhausser@gmail.com>
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*
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* @final since Symfony 6.2
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*/
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class BackedEnumValueResolver implements ArgumentValueResolverInterface, ValueResolverInterface
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{
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/**
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* @deprecated since Symfony 6.2, use resolve() instead
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*/
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public function supports(Request $request, ArgumentMetadata $argument): bool
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{
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@trigger_deprecation('symfony/http-kernel', '6.2', 'The "%s()" method is deprecated, use "resolve()" instead.', __METHOD__);
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if (!is_subclass_of($argument->getType(), \BackedEnum::class)) {
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return false;
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}
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if ($argument->isVariadic()) {
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// only target route path parameters, which cannot be variadic.
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return false;
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}
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// do not support if no value can be resolved at all
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// letting the \Symfony\Component\HttpKernel\Controller\ArgumentResolver\DefaultValueResolver be used
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// or \Symfony\Component\HttpKernel\Controller\ArgumentResolver fail with a meaningful error.
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return $request->attributes->has($argument->getName());
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}
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public function resolve(Request $request, ArgumentMetadata $argument): iterable
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{
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if (!is_subclass_of($argument->getType(), \BackedEnum::class)) {
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return [];
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}
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if ($argument->isVariadic()) {
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// only target route path parameters, which cannot be variadic.
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return [];
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}
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// do not support if no value can be resolved at all
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// letting the \Symfony\Component\HttpKernel\Controller\ArgumentResolver\DefaultValueResolver be used
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// or \Symfony\Component\HttpKernel\Controller\ArgumentResolver fail with a meaningful error.
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if (!$request->attributes->has($argument->getName())) {
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return [];
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}
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$value = $request->attributes->get($argument->getName());
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if (null === $value) {
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return [null];
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}
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if ($value instanceof \BackedEnum) {
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return [$value];
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}
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if (!\is_int($value) && !\is_string($value)) {
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throw new \LogicException(sprintf('Could not resolve the "%s $%s" controller argument: expecting an int or string, got "%s".', $argument->getType(), $argument->getName(), get_debug_type($value)));
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}
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/** @var class-string<\BackedEnum> $enumType */
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$enumType = $argument->getType();
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try {
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return [$enumType::from($value)];
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} catch (\ValueError|\TypeError $e) {
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throw new NotFoundHttpException(sprintf('Could not resolve the "%s $%s" controller argument: ', $argument->getType(), $argument->getName()).$e->getMessage(), $e);
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}
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}
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}
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