fix(metadata): get method metadata for BackedEnums

src/Metadata/Property/Factory/AttributePropertyMetadataFactory.php

@@ -59,15 +59,11 @@ public function create(string $resourceClass, string $property, array $options =
             return $this->handleNotFound($parentPropertyMetadata, $resourceClass, $property);
         }
 
-        if ($reflectionEnum) {
-            if ($reflectionEnum->hasCase($property)) {
-                $reflectionCase = $reflectionEnum->getCase($property);
-                if ($attributes = $reflectionCase->getAttributes(ApiProperty::class)) {
-                    return $this->createMetadata($attributes[0]->newInstance(), $parentPropertyMetadata);
-                }
+        if ($reflectionEnum && $reflectionEnum->hasCase($property)) {
+            $reflectionCase = $reflectionEnum->getCase($property);
+            if ($attributes = $reflectionCase->getAttributes(ApiProperty::class)) {
+                return $this->createMetadata($attributes[0]->newInstance(), $parentPropertyMetadata);
             }
-
-            return $this->handleNotFound($parentPropertyMetadata, $resourceClass, $property);
         }
 
         if ($reflectionClass->hasProperty($property)) {
@@ -79,11 +75,11 @@ public function create(string $resourceClass, string $property, array $options =
 
         foreach (array_merge(Reflection::ACCESSOR_PREFIXES, Reflection::MUTATOR_PREFIXES) as $prefix) {
             $methodName = $prefix.ucfirst($property);
-            if (!$reflectionClass->hasMethod($methodName)) {
+            if (!$reflectionClass->hasMethod($methodName) && !$reflectionEnum?->hasMethod($methodName)) {
                 continue;
             }
 
-            $reflectionMethod = $reflectionClass->getMethod($methodName);
+            $reflectionMethod = $reflectionClass->hasMethod($methodName) ? $reflectionClass->getMethod($methodName) : $reflectionEnum?->getMethod($methodName);
             if (!$reflectionMethod->isPublic()) {
                 continue;
             }

tests/Fixtures/TestBundle/ApiResource/Issue6317/Issue6317.php

@@ -0,0 +1,48 @@
+<?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\Issue6317;
+
+use ApiPlatform\Metadata\ApiProperty;
+use ApiPlatform\Metadata\ApiResource;
+
+#[ApiResource]
+enum Issue6317: int
+{
+    case First = 1;
+    case Second = 2;
+
+    #[ApiProperty(identifier: true, example: 'An example of an ID')]
+    public function getId(): int
+    {
+        return $this->value;
+    }
+
+    #[ApiProperty(jsonSchemaContext: ['example' => '/lisa/mary'])]
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    #[ApiProperty(jsonldContext: ['example' => '24'])]
+    public function getOrdinal(): string
+    {
+        return 1 === $this->value ? '1st' : '2nd';
+    }
+
+    #[ApiProperty(openapiContext: ['example' => '42'])]
+    public function getCardinal(): int
+    {
+        return $this->value;
+    }
+}

tests/JsonSchema/Command/JsonSchemaGenerateCommandTest.php

@@ -234,4 +234,22 @@ public function testJsonApiIncludesSchema(): void
         $this->assertArrayHasKey('$ref', $json['definitions']['Question.jsonapi']['properties']['included']['items']['anyOf'][0]);
         $this->assertSame('#/definitions/Answer.jsonapi', $json['definitions']['Question.jsonapi']['properties']['included']['items']['anyOf'][0]['$ref']);
     }
+
+    /**
+     * Test issue #6317.
+     */
+    public function testBackedEnumExamplesAreNotLost(): void
+    {
+        $this->tester->run(['command' => 'api:json-schema:generate', 'resource' => 'ApiPlatform\Tests\Fixtures\TestBundle\ApiResource\Issue6317\Issue6317', '--type' => 'output', '--format' => 'jsonld']);
+        $result = $this->tester->getDisplay();
+        $json = json_decode($result, associative: true);
+        $properties = $json['definitions']['Issue6317.jsonld']['properties'];
+
+        $this->assertArrayHasKey('example', $properties['id']);
+        $this->assertArrayHasKey('example', $properties['name']);
+        // jsonldContext
+        $this->assertArrayNotHasKey('example', $properties['ordinal']);
+        // openapiContext
+        $this->assertArrayNotHasKey('example', $properties['cardinal']);
+    }
 }

tests/Symfony/Bundle/Command/OpenApiCommandTest.php

@@ -117,6 +117,28 @@ public function testWriteToFile(): void
         @unlink($tmpFile);
     }
 
+    /**
+     * Test issue #6317.
+     */
+    public function testBackedEnumExamplesAreNotLost(): void
+    {
+        $this->tester->run(['command' => 'api:openapi:export']);
+        $result = $this->tester->getDisplay();
+        $json = json_decode($result, true, 512, \JSON_THROW_ON_ERROR);
+
+        $assertExample = function (array $properties, string $id): void {
+            $this->assertArrayHasKey('example', $properties[$id]);          // default
+            $this->assertArrayHasKey('example', $properties['cardinal']);   // openapiContext
+            $this->assertArrayNotHasKey('example', $properties['name']);    // jsonSchemaContext
+            $this->assertArrayNotHasKey('example', $properties['ordinal']); // jsonldContext
+        };
+
+        $assertExample($json['components']['schemas']['Issue6317']['properties'], 'id');
+        $assertExample($json['components']['schemas']['Issue6317.jsonld']['properties'], 'id');
+        $assertExample($json['components']['schemas']['Issue6317.jsonapi']['properties']['data']['properties']['attributes']['properties'], '_id');
+        $assertExample($json['components']['schemas']['Issue6317.jsonhal']['properties'], 'id');
+    }
+
     private function assertYaml(string $data): void
     {
         try {