SIP: Fix holds with zero volumes

Signed-off-by: Jeff Godin <jgodin@tadl.org>

diff --git a/Open-ILS/src/perlmods/lib/OpenILS/SIP/Patron.pm b/Open-ILS/src/perlmods/lib/OpenILS/SIP/Patron.pm
index 99fcc43..39ba98e 100644 (file)
--- a/Open-ILS/src/perlmods/lib/OpenILS/SIP/Patron.pm
+++ b/Open-ILS/src/perlmods/lib/OpenILS/SIP/Patron.pm
@@ -574,6 +574,8 @@ sub find_copy_for_hold {
         {idlist => 1}
     );
 
+    return undef unless @$vol_ids;
+
     return $e->search_asset_copy([
         {call_number => $vol_ids, deleted => 'f'}, 
         {limit => 1}