From fc76bd0f6d5d6d883f29c65295f29da38ba72c19 Mon Sep 17 00:00:00 2001
From: BA-JBI <31063297+BA-JBI@users.noreply.github.com>
Date: Thu, 15 Aug 2024 09:23:54 +0200
Subject: [PATCH] Fix loading new item list after adding new created element on
 sortable collections #8201

Apply fix as proposed in
https://github.com/sonata-project/SonataAdminBundle/issues/8201#issuecomment-2290796490
---
 src/Form/Extension/ChoiceTypeExtension.php | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/src/Form/Extension/ChoiceTypeExtension.php b/src/Form/Extension/ChoiceTypeExtension.php
index 836a12e005..45c688083e 100644
--- a/src/Form/Extension/ChoiceTypeExtension.php
+++ b/src/Form/Extension/ChoiceTypeExtension.php
@@ -27,6 +27,25 @@
  */
 final class ChoiceTypeExtension extends AbstractTypeExtension
 {
+    public function buildForm(FormBuilderInterface $builder, array $options): void
+    {
+        if ($options['multiple'] && (true === ($options['sortable'] ?? false))) {
+            $builder->addEventListener(FormEvents::PRE_SUBMIT, static function (FormEvent $event) use ($options) {
+                /** @var PreSubmitEvent $event */
+                $form = $event->getForm();
+                $data = $event->getData();
+
+                if (!is_array($data) || count($data) !== 1) {
+                    return;
+                }
+
+                if (str_contains($data[0], ',')) {
+                    $event->setData(explode(',', $data[0]));
+                }
+            },1);
+        }
+    }
+    
     public function configureOptions(OptionsResolver $resolver): void
     {
         $optionalOptions = ['sortable'];