From 0face08e320ffc7391317dd66484a88fc456470c Mon Sep 17 00:00:00 2001
From: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Date: Mon, 14 Mar 2016 18:41:02 +0000
Subject: [PATCH] Bug 16073: Fix software error in circulation.pl

Can't call method "guarantor" on an undefined value at
/home/koha/src/circ/circulation.pl line 588.
 at /home/koha/src/circ/circulation.pl line 673

Introduced by bug 15656

Test plan:
Just trigger circ/circulation.pl

Signed-off-by: Jacek Ablewicz <abl@biblos.pk.edu.pl>
Triggered circ/circulation.pl - nothing exploded, and error is gone
Signed-off-by: Tomas Cohen Arazi <tomascohen@unc.edu.ar>
---
 circ/circulation.pl | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/circ/circulation.pl b/circ/circulation.pl
index 924db65..74a7524 100755
--- a/circ/circulation.pl
+++ b/circ/circulation.pl
@@ -583,13 +583,15 @@ my $view = $batch
     ?'batch_checkout_view'
     : 'circview';
 
-my $patron = Koha::Patrons->find( $borrower->{borrowernumber} );
 my @relatives;
-if ( my $guarantor = $patron->guarantor ) {
-    push @relatives, $guarantor->borrowernumber;
-    push @relatives, $_->borrowernumber for $patron->siblings;
-} else {
-    push @relatives, $_->borrowernumber for $patron->guarantees;
+if ( $borrowernumber ) {
+    my $patron = Koha::Patrons->find( $borrower->{borrowernumber} );
+    if ( my $guarantor = $patron->guarantor ) {
+        push @relatives, $guarantor->borrowernumber;
+        push @relatives, $_->borrowernumber for $patron->siblings;
+    } else {
+        push @relatives, $_->borrowernumber for $patron->guarantees;
+    }
 }
 my $relatives_issues_count =
   Koha::Database->new()->schema()->resultset('Issue')
-- 
2.7.3