--- loncom/interface/lontrackstudent.pm	2005/04/07 06:56:23	1.15
+++ loncom/interface/lontrackstudent.pm	2005/06/30 17:56:28	1.16
@@ -1,6 +1,6 @@
 # The LearningOnline Network with CAPA
 #
-# $Id: lontrackstudent.pm,v 1.15 2005/04/07 06:56:23 albertel Exp $
+# $Id: lontrackstudent.pm,v 1.16 2005/06/30 17:56:28 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -49,6 +49,8 @@ use Apache::lonnet;
 use Apache::lonlocal;
 use Time::HiRes;
 
+my $num_records=500;
+
 sub get_data {
     my ($r,$prog_state,$navmap,$mode) = @_;
     ##
@@ -107,6 +109,12 @@ sub get_data {
         ($r,$prog_state,&mt('Parsing results'));
     #
     &output_results($r,$results_file,$navmap,$mode);
+    my ($sname,$sdom) = ($mode=~/^student:(.*):(.*)$/);
+    $r->print(&Apache::loncommon::track_student_link(
+				  'View more activity by this student',
+				  $sname,$sdom,undef,
+				  ($env{'form.start'}+$num_records)));
+
     &Apache::lonhtmlcommon::Update_PrgWin($r,$prog_state,&mt('Finished!'));
     return;
 }
@@ -188,6 +196,7 @@ sub build_query {
     my $home = $env{'course.'.$cid.'.home'};
     my $course = $env{'course.'.$cid.'.num'};
     my $prefix = $course.'_'.$domain.'_';
+    my $start = ($env{'form.start'}+0);
     #
     my %table = &table_names();
     #
@@ -200,7 +209,7 @@ sub build_query {
             LEFT JOIN $table{'student'}  AS C ON C.student_id=A.student_id 
             LEFT JOIN $table{'machine'}  AS E ON E.machine_id=A.machine_id
             ORDER BY A.time DESC
-            LIMIT 500
+            LIMIT $start, $num_records
         };
     } elsif ($mode =~ /^student:(.*):(.*)$/) {
         my $student = $1.':'.$2;
@@ -212,7 +221,7 @@ sub build_query {
                 LEFT JOIN $table{'machine'}  AS E ON E.machine_id=A.machine_id
                 WHERE C.student='$student'
                 ORDER BY A.time DESC
-                LIMIT 500
+                LIMIT $start, $num_records
             };
     }
     $query =~ s|$/||g;
@@ -262,7 +271,7 @@ sub output_results {
             '<th align="left">'.&mt('Data').'</th>'.
             '</tr>'.$/;
     }
-    my $count = -1;
+    my $count = $env{'form.start'}-1;
     $r->rflush();
     ##
     ##
@@ -336,7 +345,7 @@ sub output_results {
 	$values = &display_values($action,$values);
         #
         # Build the row for output
-        my $tablerow = qq{<tr class="$class">};
+        my $tablerow = qq{<tr class="$class"><td>}.($count+1).qq{</td>};
         if ($src =~ m|^/adm/|) {
             $tablerow .= 
                 '<td valign="top"><nobr>'.$title.'</nobr></td>';
@@ -357,7 +366,7 @@ sub output_results {
             '</tr>';
         $r->print($tablerow.$/);
     }
-    $r->print('</table>'.$/) if (! $count % 50);
+    $r->print('</table>'.$/);### if (! $count % 50);
     close(ACTIVITYDATA);
     return;
 }
@@ -488,7 +497,7 @@ sub handler {
     #
     # Extract form elements from query string
     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
-                                            ['selected_student']);
+                                            ['selected_student','start']);
     #
     # We will almost always need this...
     my $navmap = Apache::lonnavmaps::navmap->new();