--- loncom/lonnet/perl/lonnet.pm	2010/08/17 00:19:24	1.1056.4.3
+++ loncom/lonnet/perl/lonnet.pm	2010/08/17 01:33:18	1.1056.4.4
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # TCP networking package
 #
-# $Id: lonnet.pm,v 1.1056.4.3 2010/08/17 00:19:24 raeburn Exp $
+# $Id: lonnet.pm,v 1.1056.4.4 2010/08/17 01:33:18 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -5811,8 +5811,7 @@ sub update_allusers_table {
                'generation='.&escape($names->{'generation'}).'%%'.
                'permanentemail='.&escape($names->{'permanentemail'}).'%%'.
                'id='.&escape($names->{'id'}),$homeserver);
-    my $reply = &get_query_reply($queryid);
-    return $reply;
+    return;
 }
 
 # ------- Request retrieval of institutional classlists for course(s)
@@ -6735,6 +6734,11 @@ sub modifyuser {
              ' by '.$env{'user.name'}.' at '.$env{'user.domain'}.
              ' in domain '.$env{'request.role.domain'});
     my $uhome=&homeserver($uname,$udom,'true');
+    my $newuser;
+    if ($uhome eq 'no_host') {
+        $newuser = 1;
+    }
+
 # ----------------------------------------------------------------- Create User
     if (($uhome eq 'no_host') && 
 	(($umode && $upass) || ($umode eq 'localauth'))) {
@@ -6787,11 +6791,12 @@ sub modifyuser {
 		   ['firstname','middlename','lastname','generation','id',
                     'permanentemail','inststatus'],
 		   $udom,$uname);
-    my %names;
+    my (%names,%oldnames);
     if ($tmp[0] =~ m/^error:.*/) { 
         %names=(); 
     } else {
         %names = @tmp;
+        %oldnames = %names;
     }
 # If name, email and/or uid are blank (e.g., because an uploaded file
 # of users did not contain them), do not overwrite existing values
@@ -6848,14 +6853,37 @@ sub modifyuser {
     if ($reply ne 'ok') { return 'error: '.$reply; }
     my $sqlresult = &update_allusers_table($uname,$udom,\%names);
     &devalidate_cache_new('namescache',$uname.':'.$udom);
-    my $logmsg = 'Success modifying user '.$udom.', '.$uname.', '.$uid.', '.
+    my $logmsg = $udom.', '.$uname.', '.$uid.', '.
                  $umode.', '.$first.', '.$middle.', '.
-	         $last.', '.$gene.', '.$email.', '.$inststatus;
+                 $last.', '.$gene.', '.$email.', '.$inststatus;
     if ($env{'user.name'} ne '' && $env{'user.domain'}) {
         $logmsg .= ' by '.$env{'user.name'}.' at '.$env{'user.domain'};
     } else {
         $logmsg .= ' during self creation';
     }
+    my $changed;
+    if ($newuser) {
+        $changed = 1;
+    } else {
+        foreach my $field (@fields) {
+            if ($names{$field} ne $oldnames{$field}) {
+                $changed = 1;
+                last;
+            }
+        }
+    }
+    unless ($changed) {
+        $logmsg = 'No changes in user information needed for: '.$logmsg;
+        &logthis($logmsg);
+        return 'ok';
+    }
+    my $reply = &put('environment', \%names, $udom,$uname);
+    if ($reply ne 'ok') {
+        return 'error: '.$reply;
+    }
+    my $sqlresult = &update_allusers_table($uname,$udom,\%names);
+    &devalidate_cache_new('namescache',$uname.':'.$udom);
+    $logmsg = 'Success modifying user '.$logmsg;
     &logthis($logmsg);
     return 'ok';
 }