fix: Get identifiers from link paramaters objects when generating collection or resource �@id field in json+ld

Author: Geekimo

src/Symfony/Routing/IriConverter.php

@@ -183,6 +183,15 @@ private function generateSymfonyRoute(object|string $resource, int $referenceTyp
     {
         $identifiers = $context['uri_variables'] ?? [];
 
+        foreach ($identifiers as $identifier) {
+            if (is_object($identifier)) {
+                $identifiers = [
+                    ...$identifiers,
+                    ...$this->identifiersExtractor->getIdentifiersFromItem($identifier, $identifiersExtractorOperation, $context),
+                ];
+            }
+        }
+
         if (\is_object($resource)) {
             try {
                 $identifiers = $this->identifiersExtractor->getIdentifiersFromItem($resource, $identifiersExtractorOperation, $context);

tests/Functional/Parameters/LinkProviderParameterTest.php

@@ -183,4 +183,24 @@ public function testUriVariableHasDummy(): void
             'dummy' => '/dummies/1',
         ]);
     }
+
+    public function testCollectionIdIsCorrect(): void
+    {
+        $container = static::getContainer();
+        if ('mongodb' === $container->getParameter('kernel.environment')) {
+            $this->markTestSkipped();
+        }
+
+        $manager = $this->getManager();
+        $dummy = new Dummy();
+        $dummy->setName('hi');
+        $manager->persist($dummy);
+        $manager->flush();
+
+        self::createClient()->request('GET', '/link_parameter_provider_resources/'.$dummy->getId());
+
+        $this->assertJsonContains([
+            '@id' => '/link_parameter_provider_resources/1',
+        ]);
+    }
 }

tests/Symfony/Routing/IriConverterTest.php

@@ -31,6 +31,7 @@
 use ApiPlatform\State\ProviderInterface;
 use ApiPlatform\Symfony\Routing\IriConverter;
 use ApiPlatform\Symfony\Routing\SkolemIriConverter;
+use ApiPlatform\Tests\Fixtures\TestBundle\ApiResource\LinkParameterProviderResource;
 use ApiPlatform\Tests\Fixtures\TestBundle\Entity\Dummy;
 use ApiPlatform\Tests\Fixtures\TestBundle\Entity\RelatedDummy;
 use PHPUnit\Framework\TestCase;