From a481992c8e5a66bb365b8ac9ba8b373b67952d97 Mon Sep 17 00:00:00 2001
From: Benjamin Dalsass <95754414+bdalsass@users.noreply.github.com>
Date: Thu, 25 Apr 2024 09:16:30 +0200
Subject: [PATCH] =?UTF-8?q?N=C2=B07279=20-=20AttributeClass=20defined=20in?=
 =?UTF-8?q?=20XML=20datamodel=20compilation=20issue?=
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---
 core/attributedef.class.inc.php | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/core/attributedef.class.inc.php b/core/attributedef.class.inc.php
index 6729079690..a0e371e3f5 100644
--- a/core/attributedef.class.inc.php
+++ b/core/attributedef.class.inc.php
@@ -11560,6 +11560,11 @@ class AttributeClassAttCodeSet extends AttributeSet
 		}
 		return '<span class="'.implode(' ', $this->aCSSClasses).'">'.$value.'</span>';
 	}
+
+	public function IsNull($proposedValue)
+	{
+		return (empty($proposedValue));
+	}
 }
 
 class AttributeQueryAttCodeSet extends AttributeSet