From 368ce28537bcc80cd227c30c71a62841b26a20c7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Bj=C3=B6rn=20Fromme?= <fromme@dreipunktnull.com>
Date: Tue, 25 Mar 2025 14:30:26 +0100
Subject: [PATCH] fix: use form model data to determine participant index

---
 src/Form/ParticipantType.php | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/Form/ParticipantType.php b/src/Form/ParticipantType.php
index ea288d9..ae6576c 100644
--- a/src/Form/ParticipantType.php
+++ b/src/Form/ParticipantType.php
@@ -323,9 +323,10 @@ class ParticipantType extends AbstractType
             }
 
             // forcibly select mandatory services that potentially have been disabled in PRE_SET_DATA
-            $mandatoryServices = array_filter($options['selectable_services'], function (Service $service) use ($data) {
+            $mandatoryServices = array_filter($options['selectable_services'], function (Service $service) use ($form) {
+                $participantIndex = $form->getData()->index;
                 return true === $service->mandatory ||
-                    (Service::SOURCE_BOOKING === $service->source && in_array($data['index'], $service->mapping));
+                    (Service::SOURCE_BOOKING === $service->source && in_array($participantIndex, $service->mapping));
             });
 
             if (0 < count($mandatoryServices)) {