LP#1254146 gracefully handle custom trees sans entries

Avoid references to custom tree entries when no tree entries for a
custom tree exist.  Prevents:

egweb: template error: undef error - Can't call method "org_unit" on an
undefined value at
/usr/local/share/perl/5.10.1/OpenILS/WWW/EGCatLoader/Util.pm line 185.\n

Signed-off-by: Bill Erickson <berick@esilibrary.com>

diff --git a/Open-ILS/src/perlmods/lib/OpenILS/WWW/EGCatLoader/Util.pm b/Open-ILS/src/perlmods/lib/OpenILS/WWW/EGCatLoader/Util.pm
index 142f537..ce009dd 100644 (file)
--- a/Open-ILS/src/perlmods/lib/OpenILS/WWW/EGCatLoader/Util.pm
+++ b/Open-ILS/src/perlmods/lib/OpenILS/WWW/EGCatLoader/Util.pm
@@ -183,7 +183,8 @@ sub init_ro_object_cache {
                     }
                 }
 
-                $cache{aouct_tree}{$ctx->{locale}} = $node_tree->org_unit;
+                $cache{aouct_tree}{$ctx->{locale}} = 
+                    $node_tree->org_unit if $node_tree;
             }
         }