--- loncom/lonnet/perl/lonnet.pm	2005/09/01 06:48:05	1.651.2.2
+++ loncom/lonnet/perl/lonnet.pm	2005/09/13 19:33:58	1.655
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.651.2.2 2005/09/01 06:48:05 albertel Exp $
+# $Id: lonnet.pm,v 1.655 2005/09/13 19:33:58 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -767,6 +767,13 @@ sub validate_access_key {
 }
 
 # ------------------------------------- Find the section of student in a course
+sub devalidate_getsection_cache {
+    my ($udom,$unam,$courseid)=@_;
+    $courseid=~s/\_/\//g;
+    $courseid=~s/^(\w)/\/$1/;
+    my $hashid="$udom:$unam:$courseid";
+    &devalidate_cache_new('getsection',$hashid);
+}
 
 sub getsection {
     my ($udom,$unam,$courseid)=@_;
@@ -2478,8 +2485,13 @@ sub rolesinit {
 	    
             my ($trole,$tend,$tstart);
 	    if ($role=~/^cr/) { 
-		($trole,my $trest)=($role=~m|^(cr/\w+/\w+/[a-zA-Z0-9]+)_(.*)$|);
-		($tend,$tstart)=split('_',$trest);
+		&logthis(" $role $area ");
+		if ($role=~m|^(cr/\w+/\w+/[a-zA-Z0-9]+)_(.*)$|) {
+		    ($trole,my $trest)=($role=~m|^(cr/\w+/\w+/[a-zA-Z0-9]+)_(.*)$|);
+		    ($tend,$tstart)=split('_',$trest);
+		} else {
+		    $trole=$role;
+		}
 	    } else {
 		($trole,$tend,$tstart)=split(/_/,$role);
 	    }
@@ -3767,6 +3779,8 @@ sub modify_student_enrollment {
 		   $cdom,$cnum);
     unless (($reply eq 'ok') || ($reply eq 'delayed')) {
 	return 'error: '.$reply;
+    } else {
+	&devalidate_getsection_cache($udom,$uname,$cid);
     }
     # Add student role to user
     my $uurl='/'.$cid;
@@ -5882,7 +5896,7 @@ BEGIN {
     }
     close($config);
     # FIXME: dev server don't want this, production servers _do_ want this
-    &get_iphost();
+    #&get_iphost();
 }
 
 sub get_iphost {