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Diff for /loncom/interface/loncoursedata.pm between versions 1.114 and 1.115

version 1.114, 2004/02/02 21:45:12 version 1.115, 2004/02/03 20:44:06
Line 1919  able to answer it correctly. Line 1919  able to answer it correctly.
 ################################################  ################################################
 ################################################  ################################################
 sub get_problem_statistics {  sub get_problem_statistics {
     my ($students,$symb,$part,$courseid) = @_;      my ($Sections,$status,$symb,$part,$courseid) = @_;
     return if (! defined($symb) || ! defined($part));      return if (! defined($symb) || ! defined($part));
     $courseid = $ENV{'request.course.id'} if (! defined($courseid));      $courseid = $ENV{'request.course.id'} if (! defined($courseid));
     #      #
Line 1933  sub get_problem_statistics { Line 1933  sub get_problem_statistics {
     #      #
     $dbh->do('DROP TABLE '.$stats_table);  # May return an error      $dbh->do('DROP TABLE '.$stats_table);  # May return an error
     my $request =       my $request = 
         'CREATE TEMPORARY TABLE '.$stats_table.          'CREATE TEMPORARY TABLE '.$stats_table.' '.
             ' SELECT student_id,solved,award,awarded,tries FROM '.$performance_table.          'SELECT a.student_id,a.solved,a.award,a.awarded,a.tries '.
                 ' WHERE symb_id='.$symb_id.' AND part_id='.$part_id;          'FROM '.$performance_table.' AS a ';
     if (defined($students)) {      if ((defined($Sections) && lc($Sections->[0]) ne 'all') || 
           (defined($status)   && lc($status)        ne 'any')) {
           $request .= 'NATURAL LEFT JOIN '.$student_table.' AS b ';
       }
       $request .= ' WHERE a.symb_id='.$symb_id.' AND a.part_id='.$part_id;
       if (defined($Sections) && lc($Sections->[0]) ne 'all') {
         $request .= ' AND ('.          $request .= ' AND ('.
             join(' OR ', map {'student_id='.              join(' OR ', map { "b.section='".$_."'" } @$Sections
                                   &get_student_id($_->{'username'},  
                                                   $_->{'domain'})  
                                   } @$students  
                  ).')';                   ).')';
     }      }
 #    &Apache::lonnet::logthis($request);      if (defined($status) && lc($status) ne 'any') {
           $request .= " AND b.status='".$status."'";
       }
     $dbh->do($request);      $dbh->do($request);
 #    &Apache::lonnet::logthis('request = '.$/.$request);  #    &Apache::lonnet::logthis('request = '.$/.$request);
     $request = 'SELECT COUNT(*),SUM(tries),MAX(tries),AVG(tries),STD(tries) '.      $request = 'SELECT COUNT(*),SUM(tries),MAX(tries),AVG(tries),STD(tries) '.
Removed from v.1.114  
changed lines
  Added in v.1.115

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