symfony · derrabus · Mar 2, 2021 · Feb 26, 2021
diff --git a/src/Symfony/Bridge/Twig/CHANGELOG.md b/src/Symfony/Bridge/Twig/CHANGELOG.md
@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+5.3.0
+-----
+
+* Added a new `serialize` filter to serialize objects using the Serializer component
+
 5.2.0
 -----
 

diff --git a/src/Symfony/Bridge/Twig/Extension/SerializerExtension.php b/src/Symfony/Bridge/Twig/Extension/SerializerExtension.php
@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bridge\Twig\Extension;
+
+use Twig\Extension\AbstractExtension;
+use Twig\TwigFilter;
+
+/**
+ * @author Jesse Rushlow <jr@rushlow.dev>
+ */
+final class SerializerExtension extends AbstractExtension
+{
+    public function getFilters(): array
+    {
+        return [
+            new TwigFilter('serialize', [SerializerRuntime::class, 'serialize']),
+        ];
+    }
+}
diff --git a/src/Symfony/Bridge/Twig/Extension/SerializerRuntime.php b/src/Symfony/Bridge/Twig/Extension/SerializerRuntime.php
@@ -0,0 +1,33 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bridge\Twig\Extension;
+
+use Symfony\Component\Serializer\SerializerInterface;
+use Twig\Extension\RuntimeExtensionInterface;
+
+/**
+ * @author Jesse Rushlow <jr@rushlow.dev>
+ */
+final class SerializerRuntime implements RuntimeExtensionInterface
+{
+    private $serializer;
+
+    public function __construct(SerializerInterface $serializer)
+    {
+        $this->serializer = $serializer;
+    }
+
+    public function serialize($data, string $format = 'json', array $context = []): string
+    {
+        return $this->serializer->serialize($data, $format, $context);
+    }
+}
diff --git a/src/Symfony/Bridge/Twig/Tests/Extension/Fixtures/SerializerModelFixture.php b/src/Symfony/Bridge/Twig/Tests/Extension/Fixtures/SerializerModelFixture.php
@@ -0,0 +1,18 @@
+<?php
+
+namespace Symfony\Bridge\Twig\Tests\Extension\Fixtures;
+
+use Symfony\Component\Serializer\Annotation\Groups;
+
+/**
+ * @author Jesse Rushlow <jr@rushlow.dev>
+ */
+class SerializerModelFixture
+{
+    /**
+     * @Groups({"read"})
+     */
+    public $name = 'howdy';
+
+    public $title = 'fixture';
+}
diff --git a/src/Symfony/Bridge/Twig/Tests/Extension/SerializerExtensionTest.php b/src/Symfony/Bridge/Twig/Tests/Extension/SerializerExtensionTest.php
@@ -0,0 +1,70 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Bridge\Twig\Tests\Extension;
+
+use Doctrine\Common\Annotations\AnnotationReader;
+use PHPUnit\Framework\TestCase;
+use Symfony\Bridge\Twig\Extension\SerializerExtension;
+use Symfony\Bridge\Twig\Extension\SerializerRuntime;
+use Symfony\Bridge\Twig\Tests\Extension\Fixtures\SerializerModelFixture;
+use Symfony\Component\Serializer\Encoder\JsonEncoder;
+use Symfony\Component\Serializer\Encoder\YamlEncoder;
+use Symfony\Component\Serializer\Mapping\Factory\ClassMetadataFactory;
+use Symfony\Component\Serializer\Mapping\Loader\AnnotationLoader;
+use Symfony\Component\Serializer\Normalizer\ObjectNormalizer;
+use Symfony\Component\Serializer\Serializer;
+use Twig\Environment;
+use Twig\Loader\ArrayLoader;
+use Twig\RuntimeLoader\RuntimeLoaderInterface;
+
+/**
+ * @author Jesse Rushlow <jr@rushlow.dev>
+ */
+class SerializerExtensionTest extends TestCase
+{
+    /**
+     * @dataProvider serializerDataProvider
+     */
+    public function testSerializeFilter(string $template, string $expectedResult)
+    {
+        $twig = $this->getTwig($template);
+
+        self::assertSame($expectedResult, $twig->render('template', ['object' => new SerializerModelFixture()]));
+    }
+
+    public function serializerDataProvider(): \Generator
+    {
+        yield ['{{ object|serialize }}', '{&quot;name&quot;:&quot;howdy&quot;,&quot;title&quot;:&quot;fixture&quot;}'];
+        yield ['{{ object|serialize(\'yaml\') }}', '{ name: howdy, title: fixture }'];
+        yield ['{{ object|serialize(\'yaml\', {groups: \'read\'}) }}', '{ name: howdy }'];
+    }
+
+    private function getTwig(string $template): Environment
+    {
+        $meta = new ClassMetadataFactory(new AnnotationLoader(new AnnotationReader()));
+        $runtime = new SerializerRuntime(new Serializer([new ObjectNormalizer($meta)], [new JsonEncoder(), new YamlEncoder()]));
+
+        $mockRuntimeLoader = $this->createMock(RuntimeLoaderInterface::class);
+        $mockRuntimeLoader
+            ->method('load')
+            ->willReturnMap([
+                ['Symfony\Bridge\Twig\Extension\SerializerRuntime', $runtime],
+            ])
+        ;
+
+        $twig = new Environment(new ArrayLoader(['template' => $template]));
+        $twig->addExtension(new SerializerExtension());
+        $twig->addRuntimeLoader($mockRuntimeLoader);
+
+        return $twig;
+    }
+}
diff --git a/src/Symfony/Bridge/Twig/composer.json b/src/Symfony/Bridge/Twig/composer.json
@@ -22,6 +22,7 @@
         "twig/twig": "^2.13|^3.0.4"
     },
     "require-dev": {
+        "doctrine/annotations": "^1.12",
         "egulias/email-validator": "^2.1.10",
         "phpdocumentor/reflection-docblock": "^3.0|^4.0|^5.0",
         "symfony/asset": "^4.4|^5.0",

diff --git a/src/Symfony/Bundle/TwigBundle/CHANGELOG.md b/src/Symfony/Bundle/TwigBundle/CHANGELOG.md
@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+5.3.0
+-----
+
+* Added support for the new `serialize` filter (from Twig Bridge)
+
 5.2.0
 -----
 
@@ -33,7 +38,7 @@ CHANGELOG
 4.1.0
 -----
 
- * added priority to Twig extensions 
+ * added priority to Twig extensions
  * deprecated relying on the default value (`false`) of the `twig.strict_variables` configuration option. The `%kernel.debug%` parameter will be the new default in 5.0
 
 4.0.0

diff --git a/src/Symfony/Bundle/TwigBundle/DependencyInjection/Compiler/ExtensionPass.php b/src/Symfony/Bundle/TwigBundle/DependencyInjection/Compiler/ExtensionPass.php
@@ -120,5 +120,10 @@ public function process(ContainerBuilder $container)
         } else {
             $container->getDefinition('workflow.twig_extension')->addTag('twig.extension');
         }
+
+        if ($container->has('serializer')) {
+            $container->getDefinition('twig.runtime.serializer')->addTag('twig.runtime');
+            $container->getDefinition('twig.extension.serializer')->addTag('twig.extension');
+        }
     }
 }
diff --git a/src/Symfony/Bundle/TwigBundle/Resources/config/twig.php b/src/Symfony/Bundle/TwigBundle/Resources/config/twig.php
@@ -23,6 +23,8 @@
 use Symfony\Bridge\Twig\Extension\HttpKernelRuntime;
 use Symfony\Bridge\Twig\Extension\ProfilerExtension;
 use Symfony\Bridge\Twig\Extension\RoutingExtension;
+use Symfony\Bridge\Twig\Extension\SerializerExtension;
+use Symfony\Bridge\Twig\Extension\SerializerRuntime;
 use Symfony\Bridge\Twig\Extension\StopwatchExtension;
 use Symfony\Bridge\Twig\Extension\TranslationExtension;
 use Symfony\Bridge\Twig\Extension\WebLinkExtension;
@@ -160,5 +162,10 @@
                     ->factory([TwigErrorRenderer::class, 'isDebug'])
                     ->args([service('request_stack'), param('kernel.debug')]),
             ])
+
+        ->set('twig.runtime.serializer', SerializerRuntime::class)
+            ->args([service('serializer')])
+
+        ->set('twig.extension.serializer', SerializerExtension::class)
     ;
 };