FEATURE [datamapper][regroupment] moved datamapper to seperate class. Still not working

src/Bundle/ChillMainBundle/Form/DataMapper/RegroupmentDataMapper.php

@@ -0,0 +1,67 @@
+<?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\Form\DataMapper;
+
+use Chill\MainBundle\Entity\Regroupment;
+use Symfony\Component\Form\DataMapperInterface;
+
+class RegroupmentDataMapper implements DataMapperInterface
+{
+    private $regroupment;
+
+    public function __construct(?Regroupment $regroupment = null)
+    {
+        $this->regroupment = $regroupment;
+    }
+
+    public function mapDataToForms($data, $forms)
+    {
+        $forms = iterator_to_array($forms);
+
+        if ($this->regroupment instanceof Regroupment) {
+            $forms['regroupment']->setData($this->regroupment->getCenters());
+
+            dump($forms['regroupment']);
+
+            return;
+        }
+
+        if (null === $data) {
+            return;
+        }
+
+        if ($data instanceof Regroupment) {
+            $forms['regroupment']->setData($data);
+        }
+    }
+
+    public function mapFormsToData($forms, &$data)
+    {
+        $forms = iterator_to_array($forms);
+
+        if (isset($forms['regroupment'])) {
+            if ($this->regroupment instanceof Regroupment) {
+                $data = $this->regroupment;
+            } else {
+                $data = [];
+
+                foreach ($forms['regroupment']->getData() as $key => $regroupment)
+                {
+                    dump($regroupment->getCenters());
+                    $data[$key] = $regroupment->getCenters();
+                    dump($data);
+                }
+//                $data = $forms['regroupment']->getData();
+            }
+        }
+    }
+}