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Diff for /loncom/interface/loncoursedata.pm between versions 1.199 and 1.201.2.2

version 1.199, 2016/07/24 14:34:59 version 1.201.2.2, 2018/03/14 17:07:29
Line 1396  sub ensure_current_students_groups { Line 1396  sub ensure_current_students_groups {
     return;      return;
 }  }
   
   sub ensure_current_sections {
       my ($courseid) = @_;
       my ($cdom,$cnum);
       if (defined($courseid)) {
           my %coursehash = &Apache::lonnet::coursedescription($courseid);
           $cdom = $coursehash{'domain'};
           $cnum = $coursehash{'num'};
       } elsif ($env{'request.course.id'}) {
           $courseid = $env{'request.course.id'};
           $cdom = $env{'course.'.$courseid.'.domain'};
           $cnum = $env{'course.'.$courseid.'.num'};
       }
       &setup_table_names($courseid);
       my @CurrentTables = &Apache::lonmysql::tables_in_db();
       unless (grep(/^\Q$student_table\E$/,@CurrentTables)) {
           return;
       }
       # Get the update time for the student table
       my $getuserdir = 1;
       my $modifiedtime = &Apache::lonnet::GetFileTimestamp
           ($cdom,$cnum,'classlist.db',$getuserdir);
       my %tableinfo = &Apache::lonmysql::table_information($student_table);
       my $updatetime;
       if ($tableinfo{'Update_time'}) {
           $updatetime = $tableinfo{'Update_time'};
       }
       if ((!defined($updatetime)) || ($modifiedtime > $updatetime)) {
           &update_student_table($cdom,$cnum);
       }
       return;
   }
   
   sub update_student_table {
       my ($cdom,$cnum) = @_;
       return unless (($cdom ne '') && ($cnum ne ''));
       my (%roster,%sqldata);
       my $classlist = &get_classlist($cdom,$cnum);
       while (my ($student,$data) = each (%$classlist)) {
           my ($section,$start,$end) = ($data->[&CL_SECTION()],
                                        $data->[&CL_START()],
                                        $data->[&CL_END()]);
           if ($section eq '' || $section =~ /^\s*$/) {
               $section = 'none';
           }
           if ($start eq '') { $start = 0; }
           if ($end eq '')   { $end   = 0; }
           $roster{$student}{'section'} = $section;
           $roster{$student}{'start'} = $start;
           $roster{$student}{'end'} = $end;
       }
       my $dbh = &Apache::lonmysql::get_dbh();
       my $statement = "SELECT student_id,student,section,start,end FROM $student_table";
       my $sth = $dbh->prepare($statement);
       $sth->execute();
       if ($sth->err()) {
           &Apache::lonnet::logthis("Unable to execute MySQL request:");
           &Apache::lonnet::logthis("\n".$statement."\n");
           &Apache::lonnet::logthis("error is:".$sth->errstr());
           return undef;
       }
       foreach my $row (@{$sth->fetchall_arrayref}) {
           my ($id,$student,$section,$start,$end) = (@$row);
           if (ref($roster{$student}) eq 'HASH') {
               if (($roster{$student}{'section'} ne $section) ||
                   ($roster{$student}{'start'} ne $start) ||
                   ($roster{$student}{'end'} ne $end)) {
                   $sqldata{$id} = {
                                     section => $roster{$student}{'section'},
                                     start   => $roster{$student}{'start'},
                                     end     => $roster{$student}{'end'},
                                   };
               }
           }
       }
       $sth->finish();
       if (keys(%sqldata)) { 
           foreach my $id (sort { $a <=> $b } keys(%sqldata)) {
               my $request = "UPDATE $student_table SET section='$sqldata{$id}{section}'".
                             ", start='$sqldata{$id}{start}'".
                             ", end='$sqldata{$id}{end}' WHERE student_id='$id'";
               $dbh->do($request);
           }
       }
       return;
   }
   
 sub get_student_data_from_performance_cache {  sub get_student_data_from_performance_cache {
     my ($sname,$sdom,$symb,$courseid)=@_;      my ($sname,$sdom,$symb,$courseid)=@_;
     my $student = $sname.':'.$sdom if (defined($sname) && defined($sdom));      my $student = $sname.':'.$sdom if (defined($sname) && defined($sdom));
Line 1591  sub get_problem_statistics { Line 1677  sub get_problem_statistics {
     #      #
     $request = 'SELECT MAX(tries),MIN(tries) FROM '.$stats_table.      $request = 'SELECT MAX(tries),MIN(tries) FROM '.$stats_table.
         ' WHERE awarded>0';          ' WHERE awarded>0';
     if (defined($time_requirements)) {  
         $request .= ' AND '.$time_requirements;  
     }  
     my ($max,$min) = &execute_SQL_request($dbh,$request);      my ($max,$min) = &execute_SQL_request($dbh,$request);
     #      #
     $request = 'SELECT SUM(awarded) FROM '.$stats_table;      $request = 'SELECT SUM(awarded) FROM '.$stats_table;
     if (defined($time_requirements)) {  
         $request .= ' AND '.$time_requirements;  
     }  
     my ($Solved) = &execute_SQL_request($dbh,$request);      my ($Solved) = &execute_SQL_request($dbh,$request);
     #      #
     $request = 'SELECT SUM(awarded) FROM '.$stats_table.      $request = 'SELECT SUM(awarded) FROM '.$stats_table.
         " WHERE solved='correct_by_override'";          " WHERE solved='correct_by_override'";
     if (defined($time_requirements)) {  
         $request .= ' AND '.$time_requirements;  
     }  
     my ($solved) = &execute_SQL_request($dbh,$request);      my ($solved) = &execute_SQL_request($dbh,$request);
     #      #
     $Solved -= $solved;      $Solved -= $solved;
Line 1847  sub rank_students_by_scores_on_resources Line 1924  sub rank_students_by_scores_on_resources
         $limits =~ s/( AND )$//;   # Remove extra conjunction          $limits =~ s/( AND )$//;   # Remove extra conjunction
         $request .= "WHERE $limits";          $request .= "WHERE $limits";
     }       } 
     $request .= " $award_clause GROUP BY a.student_id ORDER BY score";      $request .= " $award_clause GROUP BY a.student_id ORDER BY score, b.student";
     #&Apache::lonnet::logthis('request = '.$/.$request);      #&Apache::lonnet::logthis('request = '.$/.$request);
     my $sth = $dbh->prepare($request) or die "Can't prepare $request";      my $sth = $dbh->prepare($request) or die "Can't prepare $request";
     $sth->execute();      $sth->execute();
Removed from v.1.199  
changed lines
  Added in v.1.201.2.2

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