From 2468d2bf3539af48039989997e4426ea66af0639 Mon Sep 17 00:00:00 2001
From: Matias de Andrea <deandreamatias@gmail.com>
Date: Sun, 22 Jan 2023 01:56:16 +0100
Subject: [PATCH] feat: Able to change dynamically field name

---
 lib/src/form_builder_field.dart | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/src/form_builder_field.dart b/lib/src/form_builder_field.dart
index b6955bb448..d54cc0b38a 100644
--- a/lib/src/form_builder_field.dart
+++ b/lib/src/form_builder_field.dart
@@ -133,6 +133,10 @@ class FormBuilderFieldState<F extends FormBuilderField<T>, T>
   @override
   void didUpdateWidget(covariant FormBuilderField<T> oldWidget) {
     super.didUpdateWidget(oldWidget);
+    if (widget.name != oldWidget.name) {
+      _formBuilderState?.unregisterField(oldWidget.name, this);
+      _formBuilderState?.registerField(widget.name, this);
+    }
     if (widget.focusNode != oldWidget.focusNode) {
       focusAttachment?.detach();
       effectiveFocusNode.removeListener(_touchedHandler);