fix(graphql): validate after resolver (#6426)

features/graphql/mutation.feature

@@ -1052,3 +1052,20 @@ Feature: GraphQL mutation support
     And the header "Content-Type" should be equal to "application/json"
     And the JSON node "errors" should not exist
     And the JSON node "data.deleteActivityLog.activityLog" should exist
+
+  @!mongodb
+  Scenario: Mutation should run before validation
+    When I send the following GraphQL request:
+    """
+    mutation {
+      createActivityLog(input: {name: ""}) {
+        activityLog {
+          name
+        }
+      }
+    }
+    """
+    Then the response status code should be 200
+    And the response should be in JSON
+    And the header "Content-Type" should be equal to "application/json"
+    And the JSON node "data.createActivityLog.activityLog.name" should be equal to "hi"

src/Metadata/GraphQl/Operation.php

@@ -40,6 +40,7 @@ public function __construct(
         protected ?array $args = null,
         protected ?array $extraArgs = null,
         protected ?array $links = null,
+        protected ?bool $validateAfterResolver = null,
 
         ?string $shortName = null,
         ?string $class = null,
@@ -195,4 +196,17 @@ public function withLinks(array $links): self
 
         return $self;
     }
+
+    public function canValidateAfterResolver(): ?bool
+    {
+        return $this->validateAfterResolver;
+    }
+
+    public function withValidateAfterResolver(bool $validateAfterResolver = true): self
+    {
+        $self = clone $this;
+        $self->validateAfterResolver = $validateAfterResolver;
+
+        return $self;
+    }
 }

src/Symfony/Bundle/Resources/config/graphql/validator.xml

@@ -6,5 +6,12 @@
             <argument type="service" id="api_platform.graphql.state_provider.validate.inner" />
             <argument type="service" id="api_platform.validator" />
         </service>
+
+        <!-- see api_platform.graphql.state_provider.resolver and discussion at https://github.com/api-platform/core/issues/6354 this validates after resolver has been called -->
+        <service id="api_platform.graphql.state_provider.validate_after_resolver" class="ApiPlatform\Symfony\Validator\State\ValidateProvider" decorates="api_platform.graphql.state_provider" decoration-priority="180">
+            <argument type="service" id="api_platform.graphql.state_provider.validate_after_resolver.inner" />
+            <argument type="service" id="api_platform.validator" />
+            <argument>canValidateAfterResolver</argument>
+        </service>
     </services>
 </container>

src/Symfony/Validator/State/ValidateProvider.php

@@ -23,7 +23,7 @@
  */
 final class ValidateProvider implements ProviderInterface
 {
-    public function __construct(private readonly ?ProviderInterface $decorated, private readonly ValidatorInterface $validator)
+    public function __construct(private readonly ?ProviderInterface $decorated, private readonly ValidatorInterface $validator, private readonly string $canValidateAccessor = 'canValidate')
     {
     }
 
@@ -35,7 +35,7 @@ public function provide(Operation $operation, array $uriVariables = [], array $c
             return $body;
         }
 
-        if (!($operation->canValidate() ?? true)) {
+        if (method_exists($operation, $this->canValidateAccessor) && !($operation->{$this->canValidateAccessor}() ?? ('canValidate' === $this->canValidateAccessor))) {
             return $body;
         }
 

tests/Fixtures/TestBundle/ApiResource/Issue6354/ActivityLog.php

@@ -16,6 +16,7 @@
 use ApiPlatform\Metadata\ApiResource;
 use ApiPlatform\Metadata\Get;
 use ApiPlatform\Metadata\GraphQl\DeleteMutation;
+use ApiPlatform\Metadata\GraphQl\Mutation;
 use ApiPlatform\Metadata\Operation;
 use Symfony\Component\Validator\Constraints\NotBlank;
 
@@ -29,6 +30,12 @@
         new DeleteMutation(
             name: 'delete'
         ),
+        new Mutation(
+            resolver: 'app.graphql.mutation_resolver.activity_log',
+            name: 'create',
+            validateAfterResolver: true,
+            validate: false
+        ),
     ]
 )]
 class ActivityLog

tests/Fixtures/TestBundle/ApiResource/Issue6354/CreateActivityLogResolver.php

@@ -0,0 +1,35 @@
+<?php
+
+/*
+ * This file is part of the API Platform project.
+ *
+ * (c) Kévin Dunglas <dunglas@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+declare(strict_types=1);
+
+namespace ApiPlatform\Tests\Fixtures\TestBundle\ApiResource\Issue6354;
+
+use ApiPlatform\GraphQl\Resolver\MutationResolverInterface;
+
+final class CreateActivityLogResolver implements MutationResolverInterface
+{
+    /**
+     * @param object|null $item
+     * @param mixed[]     $context
+     */
+    public function __invoke($item, array $context): ActivityLog
+    {
+        if (!$item instanceof ActivityLog) {
+            throw new \InvalidArgumentException('Missing input of type ActivityLog');
+        }
+
+        $item->id = 0;
+        $item->name = 'hi';
+
+        return $item;
+    }
+}

tests/Fixtures/app/config/config_common.yml

@@ -455,3 +455,8 @@ services:
         tags:
             - name: 'api_platform.parameter_provider'
               key: 'ApiPlatform\Tests\Fixtures\TestBundle\Parameter\CustomGroupParameterProvider'
+
+    app.graphql.mutation_resolver.activity_log:
+        class: 'ApiPlatform\Tests\Fixtures\TestBundle\ApiResource\Issue6354\CreateActivityLogResolver'
+        tags:
+            - name: 'api_platform.graphql.resolver'