From 327cb59546bb5605b99871d086823fa10a9ba6ef Mon Sep 17 00:00:00 2001
From: Paul Derscheid <paul.derscheid@lmscloud.de>
Date: Fri, 2 Jan 2026 11:22:46 +0100
Subject: [PATCH] Bug 41510: Handle undefined itemtype in
 item->effective_bookable

- Guard against undefined itemtype before calling ->bookable on it
- Return 0 (not bookable) when no itemtype is found and item-level
  bookable is not defined

Signed-off-by: David Nind <david@davidnind.com>
Signed-off-by: Martin Renvoize <martin.renvoize@openfifth.co.uk>
(cherry picked from commit 99410bc27c365472ac1a74521042ae00551efcd1)
Signed-off-by: Jacob O'Mara <Jacob.omara@openfifth.co.uk>
Signed-off-by: Wainui Witika-Park <wainuiwitikapark@catalyst.net.nz>
---
 Koha/Item.pm | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Koha/Item.pm b/Koha/Item.pm
index 648268a327..4d81919e12 100644
--- a/Koha/Item.pm
+++ b/Koha/Item.pm
@@ -2067,7 +2067,9 @@ Returns the effective bookability of the current item, be that item or itemtype
 sub effective_bookable {
     my ($self) = @_;
 
-    return $self->bookable // $self->itemtype->bookable;
+    return $self->bookable if defined $self->bookable;
+    return $self->itemtype->bookable if $self->itemtype;
+    return 0;
 }
 
 =head3 orders