create API for news item + testing if fetch works : to be generalized to accomodate other types of dashboard items

src/Bundle/ChillMainBundle/Serializer/Normalizer/NewsItemNormalizer.php

@@ -0,0 +1,43 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\MainBundle\Serializer\Normalizer;
+
+use Chill\MainBundle\Entity\Center;
+use Chill\MainBundle\Entity\NewsItem;
+use Chill\MainBundle\Repository\CenterRepository;
+use Symfony\Component\Serializer\Exception\InvalidArgumentException;
+use Symfony\Component\Serializer\Exception\UnexpectedValueException;
+use Symfony\Component\Serializer\Normalizer\DenormalizerInterface;
+use Symfony\Component\Serializer\Normalizer\NormalizerInterface;
+
+class NewsItemNormalizer implements NormalizerInterface
+{
+    public function __construct(private readonly CenterRepository $repository) {}
+
+    public function normalize($newsItem, $format = null, array $context = [])
+    {
+        /* @var NewsItem $newsItem */
+        return [
+            'id' => $newsItem->getId(),
+            'type' => 'news',
+            'title' => $newsItem->getTitle(),
+            'content' => $newsItem->getContent(),
+            'startdate' => $newsItem->getStartDate(),
+            'enddate' => $newsItem->getEndDate()
+        ];
+    }
+
+    public function supportsNormalization($data, $format = null): bool
+    {
+        return $data instanceof NewsItem && 'json' === $format;
+    }
+}