--- loncom/interface/longroup.pm	2010/11/13 04:45:17	1.27
+++ loncom/interface/longroup.pm	2016/02/26 21:44:39	1.30
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # accessor routines used to provide information about course groups 
 #
-# $Id: longroup.pm,v 1.27 2010/11/13 04:45:17 raeburn Exp $
+# $Id: longroup.pm,v 1.30 2016/02/26 21:44:39 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -218,7 +218,7 @@ for the course is included amongst the u
 and would trigger membership in teh same group(s) 
 
 If role is being added, will add any group memberships specified
-for auto-group population, unless use is already a group member.
+for auto-group population, unless user is already a group member.
 Uses default group privileges and default start and end group access
 times.
 
@@ -252,9 +252,6 @@ sub group_changes {
     } else {
         $cid = $url;
     }
-    my $courseid = $cid;
-    $courseid =~ s|^/||;
-    $courseid =~ s|/|_|;
     my %crshash=&Apache::lonnet::coursedescription($cid);
     $cdom = $crshash{'domain'};
     $cnum = $crshash{'num'};
@@ -291,12 +288,8 @@ sub group_changes {
         }
        if (@changegroups > 0) {
             my %currpriv;
-            my $extra = &Apache::lonnet::freeze_escape({'skipcheck' => 1});
-            my %roleshash = &Apache::lonnet::dump('roles',$udom,$uname,$cid,undef,$extra);
-	    if (my $tmp = &Apache::lonnet::error(%roleshash)) {
-                &Apache::lonnet::logthis('Error retrieving roles: '.$tmp.
-                                         ' for '.$uname.':'.$udom);
-            } else {
+            my %roleshash = &Apache::lonnet::dump('roles',$udom,$uname,$cid);
+	    if (keys(%roleshash) > 0) {
                 my $group_privs = '';
                 foreach my $group (@changegroups) {
                     if ($chgtype eq 'add') {
@@ -690,23 +683,130 @@ sub get_group_bbinfo {
 ###############################################
 
 sub get_group_link {
-    my ($cdom,$cnum,$group,$navmap) = @_;
+    my ($cdom,$cnum,$group,$navmap,$view_permission,$refarg) = @_;
     if (ref($navmap)) {
-        my $symb = 'uploaded/'.$cdom.'/'.$cnum.'/group_folder_'.$group.'.sequence___1___adm/'.$cdom.'/'.$cnum.'/'.$group.'/smppg';
+        my $map = "uploaded/$cdom/$cnum/group_folder_"."$group.sequence";
+        my $mapres = $navmap->getResourceByUrl("/$map");
+        my $hidden;
+        if (ref($mapres)) {
+            if ((!$viewpermission) && ($mapres->randomout())) {
+                $hidden = 1;
+            }
+        }
+        my $url = "adm/$cdom/$cnum/$group/smppg";
+        my $idx = '1';
+        my $symb = $map.'___'.$idx.'___'.$url;
         my $res = $navmap->getBySymb($symb);
+        $url = "/$url";
+        $map = "/$map";
         my $link;
         if (ref($res)) {
-            $link = $res->link();
-            $link .= (($link=~/\?/)?'&':'?').'symb='.$res->shown_symb();
+            if ((!$view_permission) && ($res->randomout())) {
+                $hidden = 1;
+            } else {
+                $hidden = 0;
+                if ($refarg) {
+                    $link = $url.'?'.$refarg;
+                } else {
+                    $link = $res->link();
+                    $link .= (($link=~/\?/)?'&':'?').'symb='.$res->shown_symb();
+                }
+            }
+        } elsif (&Apache::lonnet::is_on_map($url)) {
+            unless ($hidden) {
+                $link = $url;
+                if ($refarg) {
+                    $link = $url.'?'.$refarg;
+                }
+            }
+        }
+        if (wantarray) {
+            return ($link,$hidden);
         } else {
-            $link = '/adm/'.$cdom.'/'.$cnum.'/'.$group.'/smppg';
+            return $link;
         }
-        return $link; 
     }
     return;
 }
 
 ###############################################
 
+sub display_group_links {
+    my ($r,$target,$group,$context,$refarg,$numtoolsref,$hidehdr,%groupinfo) = @_;
+    my @available = ();
+    my %menu = ();
+    %{$menu{'email'}} = (
+                        text => 'Group Message',
+                        href => '/adm/email?compose=group&group='.$group.
+                                $refarg,
+                      );
+    %{$menu{'discussion'}} = (
+                        text => 'Discussion Boards',
+                        href => '/adm/groupboards?group='.$group.$refarg,
+                      );
+    %{$menu{'chat'}} = (
+                        text => 'Group Chat Room',
+                        href => "javascript:group_chat('$group')",
+                      );
+    %{$menu{'files'}} = (
+                        text => 'Group Portfolio',
+                        href => '/adm/coursegrp_portfolio?group='.$group.
+                                $refarg,
+                      );
+    %{$menu{'roster'}} = (
+                        text => 'Membership Roster',
+                        href => '/adm/grouproster?group='.$group.$refarg,
+                      );
+    foreach my $tool (sort(keys(%menu))) {
+        if ($groupinfo{functions}{$tool} eq 'on') {
+            push(@available,$tool);
+        }
+    }
+    my $output = '';
+    if (ref($numtoolsref) eq 'SCALAR') {
+        $$numtoolsref = scalar(@available);
+    }
+    if (@available > 0) {
+        if ($target eq 'tex') {
+            $output = '<table cellspacing="4" cellpadding="4">';
+        } else {
+            $output = &Apache::loncommon::start_data_table();
+        }
+        foreach my $tool (@available) {
+            if ($target eq 'tex') {
+                $output .= '<tr><td>'.&mt($menu{$tool}{text}).'</td></tr>';
+            } else {
+                $output .= &Apache::loncommon::start_data_table_row()
+                          .'<td><a href="'.$menu{$tool}{href}.'">'
+                          .&mt($menu{$tool}{text}).'</a></td>'
+                          .&Apache::loncommon::end_data_table_row();
+            }
+        }
+        if ($target eq 'tex') {
+            $output .= '</table>';
+        } else {
+            $output .= &Apache::loncommon::end_data_table();
+        }
+        if ($target eq 'tex') {
+            $output = &Apache::lonxml::xmlparse($r,'tex',&mt('Available functions').'<br /><br />'.$output);
+        } else {
+            unless ($hidehdr) {
+                $output = '<h3>'.&mt('Available Group Tools').'</h3>'.$output;
+            }
+        }
+    } else {
+        if ($context eq 'edit') {
+            $output = &mt('No group functionality.');
+        } else {
+            $output = &mt('No group functionality (e.g., e-mail, discussion, chat room or file upload) is currently available to you in this group: [_1].',
+                      '<b>'.&unescape($groupinfo{'description'}).'</b>');
+        }
+        if ($target eq 'tex') {
+            $output = &Apache::lonxml::xmlparse($r,'tex',$output);
+        }
+    }
+    return $output;
+}
+
 1;
 
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