* slide position handling

src/App/ConfigProvider.php

@@ -39,6 +39,7 @@ class ConfigProvider
                 Handler\HomePageHandler::class => Handler\HomePageHandlerFactory::class,
                 Handler\TeamHandler::class => Handler\TeamHandlerFactory::class,
                 Handler\SlideHandler::class => Handler\SlideHandlerFactory::class,
+                Handler\SlidePositionHandler::class => Handler\SlidePositionHandlerFactory::class,
 
                 Service\TeamService::class => Service\TeamServiceFactory::class,
                 Service\SlideManager::class => Service\SlideManagerFactory::class,

src/App/Entity/Slide.php

@@ -11,6 +11,7 @@ use JsonSerializable;
 /**
  * @ORM\Entity
  * @ORM\Table(name="slides")
+ * @ORM\Entity(repositoryClass="Gedmo\Sortable\Entity\Repository\SortableRepository")
  */
 class Slide implements JsonSerializable
 {
@@ -61,6 +62,13 @@ class Slide implements JsonSerializable
      */
     private $updatedAt;
 
+    /**
+     * @ORM\Column(name="position", type="integer")
+     * @Gedmo\SortablePosition
+     * @var int
+     */
+    private $position;
+
     /**
      * @return int
      */
@@ -187,6 +195,24 @@ class Slide implements JsonSerializable
         return $this;
     }
 
+    /**
+     * @return int
+     */
+    public function getPosition(): ?int
+    {
+        return $this->position;
+    }
+
+    /**
+     * @param int $position
+     * @return Slide
+     */
+    public function setPosition(?int $position): Slide
+    {
+        $this->position = $position;
+        return $this;
+    }
+
     /**
      * @return array
      */
@@ -204,6 +230,7 @@ class Slide implements JsonSerializable
             'updatedAt' => $this->getUpdatedAt()
                 ? $this->getUpdatedAt()->format("Y-m-d H:i:s")
                 : null,
+            'position' => $this->getPosition(),
         ];
     }
 }

src/App/Handler/SlidePositionHandler.php

@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Handler;
+
+use App\Service\SlideManager;
+use Psr\Http\Message\ServerRequestInterface;
+use Zend\Diactoros\Response\JsonResponse;
+
+class SlidePositionHandler extends AbstractCrudHandler
+{
+    /** @var SlideManager */
+    private $slideManager;
+
+    public function __construct(SlideManager $teamService)
+    {
+        $this->slideManager = $teamService;
+    }
+
+    /**
+     * @param ServerRequestInterface $request
+     * @return JsonResponse
+     * @throws \Doctrine\ORM\ORMException
+     * @throws \Doctrine\ORM\OptimisticLockException
+     */
+    public function update(ServerRequestInterface $request)
+    {
+        $id = $request->getAttribute('id');
+        $data = $this->getRequestData($request);
+        try {
+            return new JsonResponse($this->slideManager->changePosition((int)$id, (int)$data['position']));
+        } catch (\InvalidArgumentException $e) {
+            return new JsonResponse([
+                'message' => $e->getMessage(),
+            ], 500);
+        }
+    }
+}

src/App/Handler/SlidePositionHandlerFactory.php

@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Handler;
+
+use App\Service\SlideManager;
+use Psr\Container\ContainerInterface;
+use Psr\Http\Server\RequestHandlerInterface;
+
+class SlidePositionHandlerFactory
+{
+    /**
+     * @param ContainerInterface $container
+     * @return RequestHandlerInterface
+     */
+    public function __invoke(ContainerInterface $container) : RequestHandlerInterface
+    {
+        $slideManager = $container->get(SlideManager::class);
+        return new SlidePositionHandler($slideManager);
+    }
+}

src/App/Service/SlideManager.php

@@ -30,7 +30,9 @@ class SlideManager
      */
     public function listSlides(): array
     {
-        return $this->em->getRepository(self::ENTITY_NAME)->findAll();
+        return $this->em->getRepository(self::ENTITY_NAME)->findBy([], [
+            'position' => 'ASC',
+        ]);
     }
 
     /**
@@ -51,7 +53,7 @@ class SlideManager
      * @throws \Doctrine\ORM\OptimisticLockException
      * @throws \Doctrine\DBAL\Exception\UniqueConstraintViolationException
      */
-    public function addSlide(array $data)
+    public function addSlide(array $data): Slide
     {
         $entity = new Slide();
         $this->form
@@ -101,6 +103,24 @@ class SlideManager
         ));
     }
 
+    /**
+     * @param int $id
+     * @param int $position
+     * @return Slide[]
+     * @throws EntityNotFoundException
+     * @throws \Doctrine\ORM\ORMException
+     * @throws \Doctrine\ORM\OptimisticLockException
+     */
+    public function changePosition(int $id, int $position): array
+    {
+        if (null === ($entity = $this->getSlide($id))) {
+            throw new EntityNotFoundException();
+        }
+        $entity->setPosition($position);
+        $this->em->flush();
+        return $this->listSlides();
+    }
+
     /**
      * @param int $id
      * @return bool
@@ -119,11 +139,11 @@ class SlideManager
     /**
      * @param int $id
      * @param bool $isVisible
-     * @return bool
+     * @return Slide
      * @throws \Doctrine\ORM\ORMException
      * @throws \Doctrine\ORM\OptimisticLockException
      */
-    public function setSlideVisible(int $id, bool $isVisible): bool
+    public function setSlideVisible(int $id, bool $isVisible): Slide
     {
         return $this->changeSlide($id, ['isVisible' => $isVisible]);
     }