[Koha-bugs] [Bug 29437] 500 error when performing a catalog search for an ISBN13 with no valid ISBN10

[bugzilla-daemon at bugs.koha-community.org]

https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=29437

--- Comment #21 from Marcel de Rooy <m.de.rooy at rijksmuseum.nl> ---
This is the most minimal maintenance solution I could come up with for 20.11:

diff --git a/C4/Breeding.pm b/C4/Breeding.pm
index 6b103b3..5b0d83a 100644
--- a/C4/Breeding.pm
+++ b/C4/Breeding.pm
@@ -96,6 +96,7 @@ sub BreedingSearch {
         $query .= "isbn like ?";
         push(@bind,"$isbn%");
     }
+    return 0 unless @bind;
     $sth = $dbh->prepare($query);
     $sth->execute(@bind);
     while (my $data = $sth->fetchrow_hashref) {

Since Koha returns a 200, it only gives you a few log lines less.

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