--- loncom/lonnet/perl/lonnet.pm	2005/11/15 21:35:02	1.678
+++ loncom/lonnet/perl/lonnet.pm	2005/11/21 15:41:29	1.681
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.678 2005/11/15 21:35:02 raeburn Exp $
+# $Id: lonnet.pm,v 1.681 2005/11/21 15:41:29 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -2693,21 +2693,19 @@ sub set_userprivs {
     my $author=0;
     my $adv=0;
     my %grouproles = ();
-    my %groups_checked = ();
     if (keys(%{$allgroups}) > 0) {
         foreach my $role (keys %{$allroles}) {
-            my ($trole,$area);
-            if ($role =~ m|^(\w+)\.(/\w+/\w+)|) {
+            my ($trole,$area,$sec,$extendedarea);
+            if ($role =~ m|^(\w+)\.(/\w+/\w+)(/?\w*)|) {
                 $trole = $1;
                 $area = $2;
-                unless ($groups_checked{$area}) {
-                    $groups_checked{$area} = 1;
-                    if (exists($$allgroups{$area})) {
-                        foreach my $group (keys(%{$$allgroups{$area}})) {
-                            my $spec = $trole.'.'.$area;
-                            $grouproles{$spec.'.'.$area.'/'.$group} = 
-                                                    $$allgroups{$area}{$group};
-                        }
+                $sec = $3;
+                $extendedarea = $area.$sec;
+                if (exists($$allgroups{$area})) {
+                    foreach my $group (keys(%{$$allgroups{$area}})) {
+                        my $spec = $trole.'.'.$extendedarea;
+                        $grouproles{$spec.'.'.$area.'/'.$group} = 
+                                                $$allgroups{$area}{$group};
                     }
                 }
             }
@@ -3702,6 +3700,49 @@ sub auto_instcode_format {
     return $response;
 }
 
+# ------------------------------------------------------- Course Group routines
+
+sub get_coursegroups {
+    my ($cdom,$cnum,$curr_groups,$group) = @_;
+    my $numgroups = 0;
+    %{$curr_groups} = &dump('coursegroups',$cdom,$cnum,$group);
+    my ($tmp)=keys(%{$curr_groups});
+    if ($tmp eq 'error: 2 tie(GDBM) Failed while attempting dump') {
+        my %emptyhash = ();
+        if (&put('coursegroups',\%emptyhash,$cdom,$cnum) eq 'ok') {
+            %{$curr_groups} = &dump('coursegroups',$cdom,$cnum,$group);
+            $tmp=keys(%{$curr_groups});
+        }
+    }
+    if ($tmp=~/^error:/) {
+        &logthis('Error retrieving groups: '.$tmp.' in '.$cnum.':'.$cdom);
+    } else {
+        my @groups = keys(%{$curr_groups});
+        $numgroups = @groups;
+    }
+    return $numgroups;
+}
+
+sub modify_coursegroup {
+    my ($cdom,$cnum,$groupsettings) = @_;
+    return(&put('coursegroups',$groupsettings,$cdom,$cnum));
+}
+
+sub modify_group_roles {
+    my ($cdom,$cnum,$group_id,$user,$end,$start,$userprivs) = @_;
+    my $url = '/'.$cdom.'/'.$cnum.'/'.$group_id;
+    my $role = 'gr/'.&escape($userprivs);
+    my ($uname,$udom) = split(/:/,$user);
+    my $result = &assignrole($udom,$uname,$url,$role,$end,$start);
+    return $result;
+}
+
+sub modify_coursegroup_membership {
+    my ($cdom,$cnum,$membership) = @_;
+    my $result = &put('groupmembership',$membership,$cdom,$cnum);
+    return $result;
+}
+
 # ------------------------------------------------------------------ Plain Text
 
 sub plaintext {
@@ -3894,6 +3935,7 @@ sub modifyuser {
     }
     my $reply = &put('environment', \%names, $udom,$uname);
     if ($reply ne 'ok') { return 'error: '.$reply; }
+    &devalidate_cache_new('namescache',$uname.':'.$udom);
     &logthis('Success modifying user '.$udom.', '.$uname.', '.$uid.', '.
              $umode.', '.$first.', '.$middle.', '.
 	     $last.', '.$gene.' by '.