From 77ccdb35d01c0ed1014773265098bd9de3a6a8c0 Mon Sep 17 00:00:00 2001
From: campbell-m <87438215+campbell-m@users.noreply.github.com>
Date: Sun, 23 Jun 2024 14:33:46 +0100
Subject: [PATCH] Fix bug in last commit

---
 web/mrbs_sql.inc | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/web/mrbs_sql.inc b/web/mrbs_sql.inc
index 6aedcfdc4f..b3a3f83a14 100644
--- a/web/mrbs_sql.inc
+++ b/web/mrbs_sql.inc
@@ -566,8 +566,11 @@ function mrbsCheckPolicy(array $booking, ?int $ignore_entry_id=null, ?int $ignor
       if (!empty($invalid_types_days[$booking['type']]))
       {
         $overlap_date = $entryInterval->overlapsDays($invalid_types_days[$booking['type']]);
-        $overlap_day = datetime_format(['pattern' => 'cccc'], $overlap_date->getTimestamp());
-        $violations[] = get_vocab('type_not_allowed_day', get_type_vocab($booking['type']), $overlap_day);
+        if ($overlap_date !== false)
+        {
+          $overlap_day = datetime_format(['pattern' => 'cccc'], $overlap_date->getTimestamp());
+          $violations[] = get_vocab('type_not_allowed_day', get_type_vocab($booking['type']), $overlap_day);
+        }
       }
     }