[BACK]Return to lontrackstudent.pm CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / interface

Diff for /loncom/interface/lontrackstudent.pm between versions 1.9 and 1.10

version 1.9, 2004/12/13 21:08:09 version 1.10, 2004/12/16 22:04:41
Line 47  use Apache::Constants qw(:common :http); Line 47  use Apache::Constants qw(:common :http);
 use Apache::lonnet();  use Apache::lonnet();
 use Apache::lonlocal;  use Apache::lonlocal;
 use Time::HiRes;  use Time::HiRes;
   use Time::Local;
   
 sub get_data {  sub get_data {
     my ($r,$prog_state,$navmap,$mode) = @_;      my ($r,$prog_state,$navmap,$mode) = @_;
Line 55  sub get_data { Line 56  sub get_data {
     &Apache::lonhtmlcommon::Update_PrgWin      &Apache::lonhtmlcommon::Update_PrgWin
         ($r,$prog_state,&mt('Composing Query'));          ($r,$prog_state,&mt('Composing Query'));
     #      #
     my $query = &build_query($mode);  
     # Allow the other server to begin processing the data before we ask for it.      # Allow the other server to begin processing the data before we ask for it.
     sleep(5);      sleep(5);
     &Apache::lonnet::logthis('sending query '.$query);      #
       my $max_time = &get_max_time_in_db($r,$prog_state);
       if (defined($max_time)) {
           $r->print('<h3>'.&mt('Activity data goes to [_1]',
                                &Apache::lonlocal::locallocaltime($max_time)).
                     '</h3>');
           $r->rflush();
       } else {
           $r->print('<h3>'.&mt('Unable to retrieve any data.  Please reload this page and try again.').'</h3>');
           return;
       }
       my $query = &build_query($mode);
     ##      ##
     ## Send it along      ## Send it along
     my $home = $ENV{'course.'.$ENV{'request.course.id'}.'.home'};      my $home = $ENV{'course.'.$ENV{'request.course.id'}.'.home'};
Line 90  sub get_data { Line 101  sub get_data {
         $r->print(&mt('Please try again in a few minutes.'));          $r->print(&mt('Please try again in a few minutes.'));
         return;          return;
     }      }
 #    $r->print('<h2>'.&mt('Elapsed Time = [_1] seconds',  
 #                         time-$starttime).'</h2>');  
     $r->rflush();      $r->rflush();
       #
     &Apache::lonhtmlcommon::Update_PrgWin      &Apache::lonhtmlcommon::Update_PrgWin
         ($r,$prog_state,&mt('Parsing results'));          ($r,$prog_state,&mt('Parsing results'));
 #    $r->print('<h2>'.      #
 #              &mt('Reloading this page may result in newer data').  
 #              '</h2>');  
     &output_results($r,$results_file,$navmap,$mode);      &output_results($r,$results_file,$navmap,$mode);
     &Apache::lonhtmlcommon::Update_PrgWin($r,$prog_state,&mt('Finished!'));      &Apache::lonhtmlcommon::Update_PrgWin($r,$prog_state,&mt('Finished!'));
     return;      return;
 }  }
   
   sub table_names {
       my $cid = $ENV{'request.course.id'};
       my $domain = $ENV{'course.'.$cid.'.domain'};
       my $home = $ENV{'course.'.$cid.'.home'};
       my $course = $ENV{'course.'.$cid.'.num'};
       my $prefix = $course.'_'.$domain.'_';
       #
       my %tables = 
           ( student => $prefix.'students',
             res     => $prefix.'resource',
             machine => $prefix.'machine_table',
             activity=> $prefix.'activity',
             );
       return %tables;
   }
   
   sub get_max_time_in_db {
       my ($r,$prog_state) = @_;
       my %table = &table_names();
       my $query = qq{SELECT MAX(time) FROM $table{'activity'} };
       #
       my $home = $ENV{'course.'.$ENV{'request.course.id'}.'.home'};
       my $reply=&Apache::lonnet::metadata_query($query,undef,undef,[$home]);
       if (ref($reply) ne 'HASH') {
           return undef;
       }
       my $results_file = $r->dir_config('lonDaemons').'/tmp/'.$reply->{$home};
       my $endfile = $results_file.'.end';
       ##
       ## Check for the results
       &Apache::lonhtmlcommon::Update_PrgWin
           ($r,$prog_state,&mt('Waiting for results'));
       my $maxtime = 500;
       my $starttime = time;
       while (! -e $endfile && (time-$starttime < $maxtime)) {
           &Apache::lonhtmlcommon::Update_PrgWin
               ($r,$prog_state,&mt('Waiting up to [_1] seconds for results',
                                   $starttime+$maxtime-time));
           sleep(1);
       }
       if (! -e $endfile) {
           $r->print('<h2>'.
                     &mt('Unable to retrieve data.').'</h2>');
           $r->print(&mt('Please try again in a few minutes.'));
           return undef;
       }
       $r->rflush();
       #
       &Apache::lonhtmlcommon::Update_PrgWin
           ($r,$prog_state,&mt('Parsing results'));
       #
       if (! open(TIMEDATA,$results_file)) {
           $r->print('<h2>'.&mt('Unable to read results file.').'</h2>'.
                     '<p>'.
                     &mt('This is a serious error and has been logged.  '.
                         'You should contact your system administrator '.
                         'to resolve this issue.').
                     '</p>');
           return;
       }
       #
       my $timestr = '';
       while (my $line = <TIMEDATA>) {
           chomp($line);
           $timestr = &Apache::lonnet::unescape($line);
       }
       close(TIMEDATA);
       my ($year,$month,$day,$hour,$min,$sec) = 
           ($timestr =~ /^(\d+)-(\d+)-(\d+) (\d+):(\d+):(\d+)/);
       $month -= 1; # Good old timelocal
       my $max_time = undef;
       if (eval("&timelocal($sec,$min,$hour,$day,$month,$year)")) {
           $max_time = &timelocal($sec,$min,$hour,$day,$month,$year);
       }
       return $max_time;
   }
   
 sub build_query {  sub build_query {
     my ($mode) = @_;      my ($mode) = @_;
     my $cid = $ENV{'request.course.id'};      my $cid = $ENV{'request.course.id'};
Line 111  sub build_query { Line 196  sub build_query {
     my $course = $ENV{'course.'.$cid.'.num'};      my $course = $ENV{'course.'.$cid.'.num'};
     my $prefix = $course.'_'.$domain.'_';      my $prefix = $course.'_'.$domain.'_';
     #      #
     my $student_table  = $prefix.'students';      my %table = &table_names();
     my $res_table      = $prefix.'resource';  
     my $action_table   = $prefix.'actions';  
     my $machine_table  = $prefix.'machine_table';  
     my $activity_table = $prefix.'activity';  
     #      #
     my $query;      my $query;
     if ($mode eq 'full_class') {      if ($mode eq 'full_class') {
         $query = qq{          $query = qq{
         SELECT B.resource,A.time,C.student,A.action,E.machine,A.action_values           SELECT B.resource,A.time,C.student,A.action,E.machine,A.action_values 
             FROM $activity_table AS A              FROM $table{'activity'} AS A
             LEFT JOIN $res_table      AS B ON B.res_id=A.res_id               LEFT JOIN $table{'res'}      AS B ON B.res_id=A.res_id 
             LEFT JOIN $student_table  AS C ON C.student_id=A.student_id               LEFT JOIN $table{'student'}  AS C ON C.student_id=A.student_id 
             LEFT JOIN $machine_table  AS E ON E.machine_id=A.machine_id              LEFT JOIN $table{'machine'}  AS E ON E.machine_id=A.machine_id
             WHERE A.student_id>10  
             ORDER BY A.time DESC              ORDER BY A.time DESC
             LIMIT 500              LIMIT 500
         };          };
Line 133  sub build_query { Line 213  sub build_query {
         my $student = $1.':'.$2;          my $student = $1.':'.$2;
         $query = qq{          $query = qq{
             SELECT B.resource,A.time,A.action,E.machine,A.action_values               SELECT B.resource,A.time,A.action,E.machine,A.action_values 
                 FROM $activity_table AS A                  FROM $table{'activity'} AS A
                 LEFT JOIN $res_table      AS B ON B.res_id=A.res_id                   LEFT JOIN $table{'res'}      AS B ON B.res_id=A.res_id 
                 LEFT JOIN $student_table  AS C ON C.student_id=A.student_id                   LEFT JOIN $table{'student'}  AS C ON C.student_id=A.student_id 
                 LEFT JOIN $machine_table  AS E ON E.machine_id=A.machine_id                  LEFT JOIN $table{'machine'}  AS E ON E.machine_id=A.machine_id
                 WHERE C.student='$student'                  WHERE C.student='$student'
                 ORDER BY A.time DESC                  ORDER BY A.time DESC
                 LIMIT 500                  LIMIT 500
Line 189  sub output_results { Line 269  sub output_results {
     ##      ##
     ##      ##
     while (my $line = <ACTIVITYDATA>) {      while (my $line = <ACTIVITYDATA>) {
           # FIXME: does not pass symbs along :(
         chomp($line);          chomp($line);
         $line = &Apache::lonnet::unescape($line);          $line = &Apache::lonnet::unescape($line);
         if (++$count % 50 == 0) {          if (++$count % 50 == 0) {
Removed from v.1.9  
changed lines
  Added in v.1.10

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