feat: add support for Symfony's TranslatableInterface

composer.json

@@ -54,6 +54,7 @@
         "symfony/serializer": "^6.4 || ^7.1",
         "symfony/stopwatch": "^6.4 || ^7.1",
         "symfony/templating": "^6.4 || ^7.1",
+        "symfony/translation": "^6.4 || ^7.1",
         "symfony/twig-bundle": "^6.4 || ^7.1",
         "symfony/uid": "^6.4 || ^7.1",
         "symfony/validator": "^6.4 || ^7.1",

config/services.xml

@@ -155,6 +155,10 @@
             <tag name="nelmio_api_doc.object_model.property_describer" />
         </service>
 
+        <service id="nelmio_api_doc.object_model.property_describers.translatable" class="Nelmio\ApiDocBundle\PropertyDescriber\TranslatablePropertyDescriber" public="false">
+            <tag name="nelmio_api_doc.object_model.property_describer" />
+        </service>
+
         <!-- Form Type Extensions -->
 
         <service id="nelmio_api_doc.form.documentation_extension" class="Nelmio\ApiDocBundle\Form\Extension\DocumentationExtension">

src/PropertyDescriber/TranslatablePropertyDescriber.php

@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * This file is part of the NelmioApiDocBundle package.
+ *
+ * (c) Nelmio
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Nelmio\ApiDocBundle\PropertyDescriber;
+
+use OpenApi\Annotations as OA;
+use Symfony\Component\PropertyInfo\Type;
+use Symfony\Contracts\Translation\TranslatableInterface;
+
+final class TranslatablePropertyDescriber implements PropertyDescriberInterface
+{
+    /**
+     * @param array<string, mixed> $context Context options for describing the property
+     */
+    public function describe(array $types, OA\Schema $property, array $context = []): void
+    {
+        $property->type = 'string';
+    }
+
+    public function supports(array $types, array $context = []): bool
+    {
+        return 1 === \count($types)
+            && Type::BUILTIN_TYPE_OBJECT === $types[0]->getBuiltinType()
+            && is_a($types[0]->getClassName(), TranslatableInterface::class, true);
+    }
+}

tests/Functional/Controller/ApiController.php

@@ -28,6 +28,7 @@
 use Nelmio\ApiDocBundle\Tests\Functional\Entity\EntityWithNullableSchemaSet;
 use Nelmio\ApiDocBundle\Tests\Functional\Entity\EntityWithObjectType;
 use Nelmio\ApiDocBundle\Tests\Functional\Entity\EntityWithRef;
+use Nelmio\ApiDocBundle\Tests\Functional\Entity\EntityWithTranslatable;
 use Nelmio\ApiDocBundle\Tests\Functional\Entity\EntityWithUuid;
 use Nelmio\ApiDocBundle\Tests\Functional\Entity\RangeInteger;
 use Nelmio\ApiDocBundle\Tests\Functional\Entity\SymfonyConstraints;
@@ -352,6 +353,18 @@ public function entityWithUuid()
     {
     }
 
+    #[Route('/entity-with-translatable', methods: ['GET', 'POST'])]
+    #[OA\Response(
+        response: 200,
+        description: 'success',
+        content: new OA\JsonContent(
+            ref: new Model(type: EntityWithTranslatable::class),
+        ),
+    )]
+    public function entityWithTranslatable()
+    {
+    }
+
     #[Route('/form-with-alternate-type', methods: ['POST'])]
     #[OA\Response(
         response: 204,

tests/Functional/Entity/EntityWithTranslatable.php

@@ -0,0 +1,27 @@
+<?php
+
+/*
+ * This file is part of the NelmioApiDocBundle package.
+ *
+ * (c) Nelmio
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Nelmio\ApiDocBundle\Tests\Functional\Entity;
+
+use Symfony\Component\Translation\TranslatableMessage;
+use Symfony\Contracts\Translation\TranslatableInterface;
+
+class EntityWithTranslatable
+{
+    public TranslatableInterface $translatable;
+    public TranslatableMessage $translatableMessage;
+
+    public function __construct(TranslatableInterface $translatable, TranslatableMessage $translatableMessage)
+    {
+        $this->translatable = $translatable;
+        $this->translatableMessage = $translatableMessage;
+    }
+}

tests/Functional/FunctionalTest.php

@@ -868,6 +868,23 @@ public function testEntityWithUuid(): void
         ], json_decode($this->getModel('EntityWithUuid')->toJson(), true));
     }
 
+    public function testEntityWithTranslatable(): void
+    {
+        self::assertEquals([
+            'schema' => 'EntityWithTranslatable',
+            'type' => 'object',
+            'required' => ['translatable', 'translatableMessage'],
+            'properties' => [
+                'translatable' => [
+                    'type' => 'string',
+                ],
+                'translatableMessage' => [
+                    'type' => 'string',
+                ],
+            ],
+        ], json_decode($this->getModel('EntityWithTranslatable')->toJson(), true));
+    }
+
     public function testEntityWithIgnoredProperty(): void
     {
         self::assertEquals([

tests/PropertyDescriber/TranslatablePropertyDescriberTest.php

@@ -0,0 +1,62 @@
+<?php
+
+/*
+ * This file is part of the NelmioApiDocBundle package.
+ *
+ * (c) Nelmio
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Nelmio\ApiDocBundle\Tests\PropertyDescriber;
+
+use Nelmio\ApiDocBundle\PropertyDescriber\TranslatablePropertyDescriber;
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\PropertyInfo\Type;
+use Symfony\Contracts\Translation\TranslatableInterface;
+
+class TranslatablePropertyDescriberTest extends TestCase
+{
+    public function testSupportsTranslatablePropertyType(): void
+    {
+        $type = new Type(Type::BUILTIN_TYPE_OBJECT, false, TranslatableInterface::class);
+
+        $describer = new TranslatablePropertyDescriber();
+
+        self::assertTrue($describer->supports([$type]));
+    }
+
+    public function testSupportsNoIntPropertyType(): void
+    {
+        $type = new Type(Type::BUILTIN_TYPE_INT, false);
+
+        $describer = new TranslatablePropertyDescriber();
+
+        self::assertFalse($describer->supports([$type]));
+    }
+
+    public function testSupportsNoDifferentObjectPropertyType(): void
+    {
+        $type = new Type(Type::BUILTIN_TYPE_OBJECT, false, \DateTimeInterface::class);
+
+        $describer = new TranslatablePropertyDescriber();
+
+        self::assertFalse($describer->supports([$type]));
+    }
+
+    public function testDescribeTranslatablePropertyType(): void
+    {
+        $property = $this->initProperty();
+
+        $describer = new TranslatablePropertyDescriber();
+        $describer->describe([], $property, []);
+
+        self::assertSame('string', $property->type);
+    }
+
+    private function initProperty(): \OpenApi\Annotations\Property
+    {
+        return new \OpenApi\Attributes\Property(); // union types, used in schema attribute require PHP >= 8.0.0
+    }
+}