From 555fcd65b2d3491757cde2bc303db71c0d30c7d3 Mon Sep 17 00:00:00 2001
From: Matthias Zobrist <matthias.zobrist@zepi.net>
Date: Sun, 28 Apr 2024 10:28:36 +0200
Subject: [PATCH] Fixed the logic to get the field name

---
 src/Serializer/FormNormalizer.php | 25 ++++++++++++++++++-------
 1 file changed, 18 insertions(+), 7 deletions(-)

diff --git a/src/Serializer/FormNormalizer.php b/src/Serializer/FormNormalizer.php
index ddddd7a..be35971 100644
--- a/src/Serializer/FormNormalizer.php
+++ b/src/Serializer/FormNormalizer.php
@@ -120,13 +120,7 @@ private function parseFormData(FormInterface $form, array &$data, array $ignored
                 return;
             }
 
-            $key = '';
-            $parent = $form;
-            do {
-                $key = ((string) $parent->getPropertyPath()) . $key;
-                $parent = $parent->getParent();
-            } while ($parent);
-
+            $key = $this->getKeyForField($form);
             $data['formData'][$key] = $form->getData();
 
             if ($form->isRequired()) {
@@ -143,6 +137,23 @@ private function parseFormData(FormInterface $form, array &$data, array $ignored
         }
     }
 
+    private function getKeyForField(FormInterface $field): string
+    {
+        $parent = null;
+        if ($field->getParent()) {
+            $parent = $this->getKeyForField($field->getParent());
+        }
+
+        $name = (string) $field->getName();
+        if ($parent) {
+            $key = sprintf('%s[%s]', $parent, $name);
+        } else {
+            $key = $name;
+        }
+
+        return $key;
+    }
+
     /**
      * @deprecated since Symfony 6.3, use "getSupportedTypes()" instead
      */