--- loncom/auth/lonroles.pm	2001/06/02 16:14:40	1.26
+++ loncom/auth/lonroles.pm	2001/10/26 17:09:04	1.29
@@ -9,7 +9,7 @@
 # 12/08,12/28,
 # 01/15/01 Gerd Kortemeyer
 # 02/27/01 Scott Harrison
-# 03/02,05/03,05/25,05/30,06/01 Gerd Kortemeyer
+# 03/02,05/03,05/25,05/30,06/01,07/06,08/06 Gerd Kortemeyer
 
 package Apache::lonroles;
 
@@ -19,6 +19,7 @@ use Apache::lonuserstate();
 use Apache::Constants qw(:common);
 use Apache::File();
 use Apache::lonmenu;
+use Apache::loncommon;
 
 sub handler {
 
@@ -59,6 +60,7 @@ sub handler {
                    my ($cdom,$cnum,$csec)=split(/\//,$where);
                    &Apache::lonnet::appenv('request.role' => $trolecode,
                                            'request.course.sec' => $csec);
+                   my $msg='Entering course ...';
                    if (($cnum) && ($role ne 'ca')) {
 		      my ($furl,$ferr)=
 			  &Apache::lonuserstate::readmap($cdom.'/'.$cnum);
@@ -67,19 +69,28 @@ sub handler {
                          $r->internal_redirect($ENV{'form.orgurl'});
                          return OK;
 		     } else {
+                         unless ($ENV{'request.course.id'}) {
+                             &Apache::lonnet::appenv(
+				 "request.course.id"  => $cdom.'_'.$cnum);
+                             $furl='/adm/notfound.html';
+                             $msg=
+	 '<h1><font color=red>Could not initialize top-level map.</font></h1>';
+                          }
 	                 $r->content_type('text/html');
                          $r->send_http_header;
                          my $swinfo=&Apache::lonmenu::rawconfig;
+			 my $cacheheader=&Apache::loncommon::cacheheader();
                          print (<<ENDREDIR);
 <head><title>Entering Course</title>
 <meta HTTP-EQUIV="Refresh" CONTENT="1; url=$furl">
+$cacheheader
 </head>
 <html>
 <body bgcolor="#FFFFFF">
 <script>
 $swinfo
 </script>
-Entering course ...
+$msg
 </body>
 </html>
 ENDREDIR
@@ -100,10 +111,11 @@ ENDREDIR
     return OK if $r->header_only;
 
     my $swinfo=&Apache::lonmenu::rawconfig;
-
+    my $cacheheader=&Apache::loncommon::cacheheader();
     $r->print(<<ENDHEADER);
 <html>
 <head>
+$cacheheader
 <title>LON-CAPA User Roles</title>
 </head><body bgcolor="#FFFFFF">
 <script>
@@ -173,6 +185,9 @@ ENDHEADER
         $r->print('<input type=hidden name=orgurl value="'.$fn.'">');
         $r->print('<input type=hidden name=selectrole value=1>');
     }
+    $r->print('<br>Show all roles: <input type=checkbox name=showall');
+    if ($ENV{'form.showall'}) { $r->print(' checked'); }
+    $r->print('><input type=submit value="Display"><br>');
 # ----------------------------------------------------------------------- Table
     $r->print('<table><tr>');
     unless ($nochoose) { $r->print('<th>&nbsp;</th>'); }
@@ -208,6 +223,8 @@ ENDHEADER
 		$tstatus='selected';
             }
             my $tbg;
+           if (($tstatus eq 'is') || ($tstatus eq 'selected') ||
+               ($ENV{'form.showall'})) {
             if ($tstatus eq 'is') {
 		$tbg='#77FF77';
             } elsif ($tstatus eq 'future') {
@@ -272,6 +289,10 @@ ENDHEADER
 		if ($tstatus eq 'is') {
                     $r->print('<td><input type=submit value=Select name="'.
                               $trolecode.'"></td>');
+                } elsif ($ENV{'user.adv'}) {
+                    $r->print(
+                        '<td><input type=submit value="Re-Initialize" name="'.
+                              $trolecode.'"></td>');
                 } else {
                     $r->print('<td>&nbsp;</td>');
                 }
@@ -280,6 +301,7 @@ ENDHEADER
 		      $ttype.'</td><td>'.$twhere.'</td><td>'.$tpstart.
                       '</td><td>'.$tpend.
                       '</td><td>'.$tremark.'&nbsp;</td></tr>'."\n");
+	}
         }
     }
     my $tremark='';
