From 2862d7a6e9fbebe99895f68802b0afd44c465ec4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mathias=20Gla=CC=88ser?= <mathias.glaeser@beaufort.ch>
Date: Sat, 19 Sep 2026 14:28:02 +0200
Subject: [PATCH] Allow saving without contact details

---
 public/api/market-occurrence.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/public/api/market-occurrence.php b/public/api/market-occurrence.php
index 0a29c63..8fc0bd5 100644
--- a/public/api/market-occurrence.php
+++ b/public/api/market-occurrence.php
@@ -64,7 +64,12 @@ if ($requestMethod === 'POST') {
         if ($contactFields !== []) {
             $submittedContactId = trim((string) ($fields['contact_person_id'] ?? ''));
             $contactId = (int) ($submittedContactId !== '' ? $submittedContactId : ($existingOccurrence['contact_person_id'] ?? 0));
-            update_contact_details($pdo, $contactId, $contactFields);
+            $hasContactValue = array_reduce($contactFields, static fn (bool $carry, mixed $value): bool => $carry || trim((string) $value) !== '', false);
+            if ($contactId > 0 && ($hasContactValue || $submittedContactId !== '')) {
+                update_contact_details($pdo, $contactId, $contactFields);
+            } elseif ($hasContactValue) {
+                throw new InvalidArgumentException('Für E-Mail oder Telefon muss eine Kontaktperson ausgewählt sein.');
+            }
         }
         $organizerFields = [];
         foreach (['organization_contact_id', 'contact_person_id'] as $organizerField) {