WIP: Implement feedback functionality

src/Form/DataTransformer/FeedbackToRatingsTransformer.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace App\Form\DataTransformer;
+
+use App\Entity\FeedbackSet;
+use Symfony\Component\Form\DataTransformerInterface;
+
+class FeedbackToRatingsTransformer implements DataTransformerInterface
+{
+    public function __construct(private readonly FeedbackSet $feedbackSet)
+    {
+    }
+
+    public function transform(mixed $value)
+    {
+        // Not in use
+        return $value;
+    }
+
+    public function reverseTransform(mixed $value)
+    {
+        $feedbackRatings = [];
+
+        foreach ($this->feedbackSet->getRatings() as $index => $rating) {
+            $feedbackRatings[] = [
+                'rating' => $rating,
+                'mark' => $value['rating_'.$index],
+            ];
+        }
+
+        return $feedbackRatings;
+    }
+}