Add "single_category_selection" Content Type Resolver

Content/ContentTypeResolver/SingleCategorySelectionResolver.php

@@ -0,0 +1,61 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of Sulu.
+ *
+ * (c) Sulu GmbH
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace Sulu\Bundle\HeadlessBundle\Content\ContentTypeResolver;
+
+use JMS\Serializer\SerializationContext;
+use Sulu\Bundle\CategoryBundle\Category\CategoryManagerInterface;
+use Sulu\Bundle\HeadlessBundle\Content\ContentView;
+use Sulu\Bundle\HeadlessBundle\Content\Serializer\CategorySerializerInterface;
+use Sulu\Component\Content\Compat\PropertyInterface;
+
+class SingleCategorySelectionResolver implements ContentTypeResolverInterface
+{
+    public static function getContentType(): string
+    {
+        return 'single_category_selection';
+    }
+
+    /**
+     * @var CategoryManagerInterface
+     */
+    private $categoryManager;
+
+    /**
+     * @var CategorySerializerInterface
+     */
+    private $categorySerializer;
+
+    public function __construct(
+        CategoryManagerInterface $categoryManager,
+        CategorySerializerInterface $categorySerializer
+    ) {
+        $this->categoryManager = $categoryManager;
+        $this->categorySerializer = $categorySerializer;
+    }
+
+    public function resolve($data, PropertyInterface $property, string $locale, array $attributes = []): ContentView
+    {
+        if (null === $data) {
+            return new ContentView(null);
+        }
+
+        $category = $this->categoryManager->findById((int) $data);
+        $serializationContext = new SerializationContext();
+        $serializationContext->setGroups(['partialCategory']);
+
+        $content = $this->categorySerializer->serialize($category, $locale, $serializationContext);
+
+        return new ContentView($content, [$data]);
+    }
+}

Resources/config/content-type-resolvers.xml

@@ -82,6 +82,16 @@
             <tag name="sulu_headless.content_type_resolver"/>
         </service>
 
+        <service
+                id="sulu_headless.content_resolver.single_category_selection"
+                class="Sulu\Bundle\HeadlessBundle\Content\ContentTypeResolver\SingleCategorySelectionResolver"
+        >
+            <argument type="service" id="sulu_category.category_manager"/>
+            <argument type="service" id="sulu_headless.serializer.category"/>
+
+            <tag name="sulu_headless.content_type_resolver"/>
+        </service>
+
         <service
             id="sulu_headless.content_resolver.single_media_selection"
             class="Sulu\Bundle\HeadlessBundle\Content\ContentTypeResolver\SingleMediaSelectionResolver"

Tests/Unit/Content/ContentTypeResolver/SingleCategorySelectionResolverTest.php

@@ -0,0 +1,138 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of Sulu.
+ *
+ * (c) Sulu GmbH
+ *
+ * This source file is subject to the MIT license that is bundled
+ * with this source code in the file LICENSE.
+ */
+
+namespace Sulu\Bundle\HeadlessBundle\Tests\Unit\Content\ContentTypeResolver;
+
+use JMS\Serializer\SerializationContext;
+use PHPUnit\Framework\TestCase;
+use Prophecy\Argument;
+use Prophecy\Prophecy\ObjectProphecy;
+use Sulu\Bundle\CategoryBundle\Category\CategoryManagerInterface;
+use Sulu\Bundle\CategoryBundle\Entity\CategoryInterface;
+use Sulu\Bundle\HeadlessBundle\Content\ContentTypeResolver\SingleCategorySelectionResolver;
+use Sulu\Bundle\HeadlessBundle\Content\ContentView;
+use Sulu\Bundle\HeadlessBundle\Content\Serializer\CategorySerializerInterface;
+use Sulu\Component\Content\Compat\PropertyInterface;
+
+class SingleCategorySelectionResolverTest extends TestCase
+{
+    /**
+     * @var CategoryManagerInterface|ObjectProphecy
+     */
+    private $categoryManager;
+
+    /**
+     * @var CategorySerializerInterface|ObjectProphecy
+     */
+    private $categorySerializer;
+
+    /**
+     * @var SingleCategorySelectionResolver
+     */
+    private $singleCategorySelectionResolver;
+
+    protected function setUp(): void
+    {
+        $this->categoryManager = $this->prophesize(CategoryManagerInterface::class);
+        $this->categorySerializer = $this->prophesize(CategorySerializerInterface::class);
+
+        $this->singleCategorySelectionResolver = new SingleCategorySelectionResolver(
+            $this->categoryManager->reveal(),
+            $this->categorySerializer->reveal()
+        );
+    }
+
+    public function testGetContentType(): void
+    {
+        self::assertSame('single_category_selection', $this->singleCategorySelectionResolver::getContentType());
+    }
+
+    public function testResolve(): void
+    {
+        $locale = 'en';
+
+        $category = $this->prophesize(CategoryInterface::class);
+
+        $this->categoryManager->findById(1)->willReturn($category->reveal());
+
+        $this->categorySerializer->serialize(
+            $category->reveal(),
+            $locale,
+            Argument::type(SerializationContext::class)
+        )->willReturn([
+            'id' => 1,
+            'locale' => 'en',
+            'key' => 'key-1',
+            'name' => 'cat-1',
+            'desc' => 'desc-1',
+            'medias' => [
+                [
+                    'id' => 1,
+                    'formatUri' => '/media/1/{format}/media-1.jpg?=v1-0',
+                ],
+            ],
+        ]);
+
+        $property = $this->prophesize(PropertyInterface::class);
+
+        $result = $this->singleCategorySelectionResolver->resolve([1], $property->reveal(), $locale);
+
+        $this->assertInstanceOf(ContentView::class, $result);
+
+        $this->assertSame(
+            [
+                'id' => 1,
+                'locale' => 'en',
+                'key' => 'key-1',
+                'name' => 'cat-1',
+                'desc' => 'desc-1',
+                'medias' => [
+                    [
+                        'id' => 1,
+                        'formatUri' => '/media/1/{format}/media-1.jpg?=v1-0',
+                    ],
+                ],
+            ],
+            $result->getContent()
+        );
+
+        $this->assertSame(
+            [[1]],
+            $result->getView()
+        );
+    }
+
+    public function testResolveDataIsNull(): void
+    {
+        $locale = 'en';
+        $property = $this->prophesize(PropertyInterface::class);
+
+        $result = $this->singleCategorySelectionResolver->resolve(null, $property->reveal(), $locale);
+
+        $this->assertNull($result->getContent());
+
+        $this->assertSame([], $result->getView());
+    }
+
+    public function testResolveDataIsEmptyArray(): void
+    {
+        $locale = 'en';
+        $property = $this->prophesize(PropertyInterface::class);
+
+        $result = $this->singleCategorySelectionResolver->resolve(null, $property->reveal(), $locale);
+
+        $this->assertNull($result->getContent());
+
+        $this->assertSame([], $result->getView());
+    }
+}