--- loncom/interface/loncoursegroups.pm	2010/08/29 22:59:49	1.111
+++ loncom/interface/loncoursegroups.pm	2011/10/23 00:04:51	1.113
@@ -1,6 +1,6 @@
 # The LearningOnline Network with CAPA
 #
-# $Id: loncoursegroups.pm,v 1.111 2010/08/29 22:59:49 raeburn Exp $
+# $Id: loncoursegroups.pm,v 1.113 2011/10/23 00:04:51 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -135,7 +135,7 @@ function changeSort(caller) {
 function openGroupRoster(group,status) {
     var url = '/adm/grouproster?';
     url += 'group='+group+'&status='+status+'&ref=popup';
-    var title = 'Group Membership';
+    var title = 'Group_Membership';
     var options = 'scrollbars=1,resizable=1,menubar=0';
     options += ',width=700,height=600';
     rosterbrowser = open(url,title,options,'1');
@@ -1547,16 +1547,19 @@ sub build_members_list {
 sub group_files {
     my ($group,$portpath,$numfiles,$numdirs) = @_;
     my $dirptr=16384;
-    my @dir_list=&Apache::portfolio::get_dir_list($portpath,undef,$group);
-    foreach my $line (@dir_list) {
-        my ($filename,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
-        if (($filename !~ /^\.\.?$/) && ($filename !~ /\.meta$/ ) && ($filename !~ /(.*)\.(\d+)\.([^\.]*)$/) && ($filename ne 'no_such_dir')) { 
-            if ($dirptr&$testdir) {
-                $portpath .= '/'.$filename;
-                $$numdirs ++;
-                &group_files($group,$portpath,$numfiles,$numdirs)
-            } else {
-                $$numfiles ++;
+    my ($dirlistref,$listerror) = 
+        &Apache::portfolio::get_dir_list($portpath,undef,$group);
+    if (ref($dirlistref) eq 'ARRAY') {
+        foreach my $line (@{$dirlistref}) {
+            my ($filename,$dom,undef,$testdir,undef,undef,undef,undef,$size,undef,$mtime,undef,undef,undef,$obs,undef)=split(/\&/,$line,16);
+            if (($filename !~ /^\.\.?$/) && ($filename !~ /\.meta$/ ) && ($filename !~ /(.*)\.(\d+)\.([^\.]*)$/) && ($filename ne 'no_such_dir')) { 
+                if ($dirptr&$testdir) {
+                    $portpath .= '/'.$filename;
+                    $$numdirs ++;
+                    &group_files($group,$portpath,$numfiles,$numdirs)
+                } else {
+                    $$numfiles ++;
+                }
             }
         }
     }