From e1eafdca59749b304b763f97443b8894aab0c7b6 Mon Sep 17 00:00:00 2001
From: marco <marco@skup.in>
Date: Thu, 16 Jul 2026 16:10:33 +0200
Subject: [PATCH] added validator for whole numbers

---
 lib/service/validators.dart | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/lib/service/validators.dart b/lib/service/validators.dart
index aec3b9e..5743b40 100644
--- a/lib/service/validators.dart
+++ b/lib/service/validators.dart
@@ -7,6 +7,15 @@ String? timeValidator(String? value) {
   return 'Not a valid time format';
 }
 
+String? wholeNumberValidator(String? value) {
+  if (value == null || value.isEmpty) return null;
+
+  if (RegExp(r'^[0-9]*$').hasMatch(value)) {
+    return null;
+  }
+  return 'Not a valid number';
+}
+
 String? dateTimeValidator(String? value) {
   if (value == null || value.isEmpty) return null;