# The LearningOnline Network with CAPA # # $Id: lonstudentassessment.pm,v 1.55 2003/06/10 19:19:57 matthew Exp $ # # Copyright Michigan State University Board of Trustees # # This file is part of the LearningOnline Network with CAPA (LON-CAPA). # LON-CAPA is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # LON-CAPA is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with LON-CAPA; if not, write to the Free Software # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA # # /home/httpd/html/adm/gpl.txt # # http://www.lon-capa.org/ # # (Navigate problems for statistical reports # ####################################################### ####################################################### =pod =head1 NAME lonstudentassessment =head1 SYNOPSIS Presents assessment data about a student or a group of students. =head1 Subroutines =over 4 =cut ####################################################### ####################################################### package Apache::lonstudentassessment; use strict; use Apache::lonstatistics; use Apache::lonhtmlcommon; use Apache::loncoursedata; use Apache::lonnet; # for logging porpoises use Spreadsheet::WriteExcel; ####################################################### ####################################################### =pod =item Package Variables =over 4 =item $Statistics Hash ref to store student data. Indexed by symb, contains hashes with keys 'score' and 'max'. =cut ####################################################### ####################################################### my $Statistics; ####################################################### ####################################################### =pod =item $show_links 'yes' or 'no' for linking to student performance data =item $output_mode 'html', 'excel', or 'csv' for output mode =item $show 'all', 'totals', or 'scores' determines how much data is output =item $data determines what performance data is shown =item $datadescription A short description of the output data selected. =item $base 'tries' or 'scores' determines the base of the performance shown =item $single_student_mode evaluates to true if we are showing only one student. =cut ####################################################### ####################################################### my $show_links; my $output_mode; my $data; my $base; my $datadescription; my $single_student_mode; ####################################################### ####################################################### # End of package variable declarations =pod =back =cut ####################################################### ####################################################### =pod =item &BuildStudentAssessmentPage() Inputs: =over 4 =item $r Apache Request =item $c Apache Connection =back =cut ####################################################### ####################################################### sub BuildStudentAssessmentPage { my ($r,$c)=@_; undef($Statistics); $single_student_mode = 1 if ($ENV{'form.SelectedStudent'}); # # Print out the HTML headers for the interface # This also parses the output mode selector # This step must *always* be done. $r->print(&CreateInterface()); $r->print(''); $r->print(''); $r->rflush(); if (! exists($ENV{'form.notfirstrun'}) && ! $single_student_mode) { return; } # my $initialize = \&html_initialize; my $output_student = \&html_outputstudent; my $finish = \&html_finish; # if ($output_mode eq 'excel') { $initialize = \&excel_initialize; $output_student = \&excel_outputstudent; $finish = \&excel_finish; } elsif ($output_mode eq 'csv') { $initialize = \&csv_initialize; $output_student = \&csv_outputstudent; $finish = \&csv_finish; } # if($c->aborted()) { return ; } # # Determine which students we want to look at my @Students; if ($single_student_mode) { @Students = (&Apache::lonstatistics::current_student()); $r->print(&next_and_previous_buttons()); $r->rflush(); } else { @Students = @Apache::lonstatistics::Students; } # # Call the initialize routine selected above $initialize->($r); foreach my $student (@Students) { if($c->aborted()) { $finish->($r); return ; } # Call the output_student routine selected above $output_student->($r,$student); } # Call the "finish" routine selected above $finish->($r); # return; } ####################################################### ####################################################### sub next_and_previous_buttons { my $Str = ''; $Str .= ''; # # Build the previous student link my $previous = &Apache::lonstatistics::previous_student(); my $previousbutton = ''; if (defined($previous)) { my $sname = $previous->{'username'}.':'.$previous->{'domain'}; $previousbutton .= ''; } else { $previousbutton .= ''; } # # Build the next student link my $next = &Apache::lonstatistics::next_student(); my $nextbutton = ''; if (defined($next)) { my $sname = $next->{'username'}.':'.$next->{'domain'}; $nextbutton .= ''; } else { $nextbutton .= ''; } # # Build the 'all students' button my $all = ''; $all .= ''; $Str .= $previousbutton.(' 'x5).$all.(' 'x5).$nextbutton; return $Str; } ####################################################### ####################################################### sub get_student_fields_to_show { my @to_show = @Apache::lonstatistics::SelectedStudentData; foreach (@to_show) { if ($_ eq 'all') { @to_show = @Apache::lonstatistics::StudentDataOrder; last; } } return @to_show; } ####################################################### ####################################################### =pod =item &CreateInterface() Called by &BuildStudentAssessmentPage to create the top part of the page which displays the chart. Inputs: None Returns: A string containing the HTML for the headers and top table for the chart page. =cut ####################################################### ####################################################### sub CreateInterface { my $Str = ''; # $Str .= &CreateLegend(); $Str .= ''."\n"; $Str .= ''; $Str .= ''; $Str .= ''; $Str .= ''; $Str .= ''; $Str .= ''; $Str .= ''; $Str .= ''."\n"; # $Str .= ''."\n"; $Str .= '
SectionsStudent DataEnrollment StatusSequences and FoldersOutput FormatOutput Data
'."\n"; $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5); $Str .= ''; my $only_seq_with_assessments = sub { my $s=shift; if ($s->{'num_assess'} < 1) { return 0; } else { return 1; } }; $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple', 5,undef); $Str .= ''."\n"; $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5); $Str .= ''."\n"; $Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5, $only_seq_with_assessments); $Str .= ''."\n"; $Str .= &CreateAndParseOutputSelector(); $Str .= ''."\n"; $Str .= &CreateAndParseOutputDataSelector(); $Str .= '
'."\n"; $Str .= ''; $Str .= ' 'x8; return $Str; } ####################################################### ####################################################### =pod =item &CreateAndParseOutputSelector() =cut ####################################################### ####################################################### my @OutputOptions = ({ name => 'HTML, with links', value => 'html, with links', description => 'Output HTML with each symbol linked to the problem '. 'which generated it.', mode => 'html', show_links => 'yes', }, { name => 'HTML, with all links', value => 'html, with all links', description => 'Output HTML with each symbol linked to the problem '. 'which generated it. '. 'This includes links for unattempted problems.', mode => 'html', show_links => 'all', }, { name => 'HTML, without links', value => 'html, without links', description => 'Output HTML. By not including links, the size of the'. ' web page is greatly reduced. If your browser crashes on the '. 'full display, try this.', mode => 'html', show_links => 'no', }, { name => 'Excel', value => 'excel', description => 'Output an Excel file (compatable with Excel 95).', mode => 'excel', show_links => 'no', }, # { name => 'multi-sheet Excel', # value => 'multi-sheet excel', # description => 'Output an Excel file (compatable with Excel 95), '. # 'with a seperate worksheet for each sequence you have selected '. # 'the data for each problem part '. # '(number of tries, status, points awarded) will be listed.', # mode => 'multi-sheet excel', # show_links => 'no', # }, # { name => 'multi-sheet Excel, by section', # value => 'multi-sheet excel, by section', # description => 'Output an Excel file (compatable with Excel 95), '. # 'with a seperate worksheet for each sequence you have selected '. # 'the data for each problem part '. # '(number of tries, status, points awarded) will be listed. '. # 'There will be one Excel workbook for each section selected.', # mode => 'multi-sheet excel', # show_links => 'no', # }, { name => 'CSV', value => 'csv', description => 'Output a comma seperated values file suitable for '. 'import into a spreadsheet.', mode => 'csv', show_links => 'no', }, ); sub OutputDescriptions { my $Str = ''; $Str .= "

Output Modes

\n"; $Str .= "
\n"; foreach my $outputmode (@OutputOptions) { $Str .="
".$outputmode->{'name'}."
\n"; $Str .="
".$outputmode->{'description'}."
\n"; } $Str .= "
\n"; return $Str; } sub CreateAndParseOutputSelector { my $Str = ''; my $elementname = 'chartoutputmode'; # # Format for output options is 'mode, restrictions'; my $selected = 'html, without links'; if (exists($ENV{'form.'.$elementname})) { if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) { $selected = $ENV{'form.'.$elementname}->[0]; } else { $selected = $ENV{'form.'.$elementname}; } } # # Set package variables describing output mode $show_links = 'no'; $output_mode = 'html'; foreach my $option (@OutputOptions) { next if ($option->{'value'} ne $selected); $output_mode = $option->{'mode'}; $show_links = $option->{'show_links'}; } # # Build the form element $Str = qq/"; return $Str; } ## ## Data selector stuff ## my @OutputDataOptions = ( { name =>'Tries', base =>'tries', value => 'tries', shortdesc => 'Number of Tries before success on each Problem Part', longdesc =>'The number of tries before success on each problem part.', }, { name =>'Parts Correct', base =>'tries', value => 'parts correct', shortdesc => 'Number of Problem Parts completed successfully.', longdesc => 'The Number of Problem Parts completed successfully.', }, { name =>'Parts Correct & Maximums', base =>'tries', value => 'parts correct total', shortdesc => 'Number of Problem Parts completed successfully.', longdesc => 'The Number of Problem Parts completed successfully and '. 'the maximum possible for each student', }, { name => 'Scores', base => 'scores', value => 'scores', shortdesc => 'Score on each Problem Part', longdesc =>'The students score on each problem part, computed as'. 'the part weight * part awarded', }, { name => 'Scores Sum', base => 'scores', value => 'sum only', shortdesc => 'Sum of Scores on each Problem Part', longdesc =>'The total of the scores of the student on each problem'. ' part in the sequences or folders selected.', }, { name => 'Scores Sum & Maximums', base => 'scores', value => 'sum and total', shortdesc => 'Total Score and Maximum Possible for each '. 'Sequence or Folder', longdesc => 'The total of the scores of the student on each problem'. ' and the maximum possible for that student on each Sequence or '. ' Folder.', }, { name => 'Summary Table (Scores)', base => 'scores', value => 'final table scores', shortdesc => 'Summary of Scores', longdesc => '', }, { name => 'Summary Table (Parts)', base => 'tries', value => 'final table parts', shortdesc => 'Summary of Parts Correct', longdesc => '', } ); sub CreateAndParseOutputDataSelector { my $Str = ''; my $elementname = 'chartoutputdata'; # my $selected = 'scores'; if (exists($ENV{'form.'.$elementname})) { if (ref($ENV{'form.'.$elementname} eq 'ARRAY')) { $selected = $ENV{'form.'.$elementname}->[0]; } else { $selected = $ENV{'form.'.$elementname}; } } # $data = 'scores'; foreach my $option (@OutputDataOptions) { if ($option->{'value'} eq $selected) { $data = $option->{'value'}; $base = $option->{'base'}; $datadescription = $option->{'shortdesc'}; } } # # Build the form element $Str = qq/"; return $Str; } ####################################################### ####################################################### =pod =head2 HTML output routines =item &html_initialize($r) Create labels for the columns of student data to show. =item &html_outputstudent($r,$student) Return a line of the chart for a student. =item &html_finish($r) =cut ####################################################### ####################################################### { my $padding; my $count; my $nodata_count; # The number of students for which there is no data my %prog_state; # progress state used by loncommon PrgWin routines sub html_initialize { my ($r) = @_; # $padding = ' 'x3; $count = 0; $nodata_count = 0; # $r->print("

".$ENV{'course.'.$ENV{'request.course.id'}.'.description'}. "  ".localtime(time)."

"); if ($data !~ /^final table/) { $r->print("

".$datadescription."

"); } # # Set up progress window for 'final table' display only if ($data =~ /^final table/) { my $studentcount = scalar(@Apache::lonstatistics::Students); %prog_state=&Apache::lonhtmlcommon::Create_PrgWin ($r,'Summary Table Status', 'Summary Table Compilation Progress', $studentcount); } my $Str = "
\n";
    # First, the @StudentData fields need to be listed
    my @to_show = &get_student_fields_to_show();
    foreach my $field (@to_show) {
        my $title=$Apache::lonstatistics::StudentData{$field}->{'title'};
        my $base =$Apache::lonstatistics::StudentData{$field}->{'base_width'};
        my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
        $Str .= $title.' 'x($width-$base).$padding;
    }
    # Now the selected sequences need to be listed
    foreach my $sequence (&Apache::lonstatistics::Sequences_with_Assess()){
        my $title = $sequence->{'title'};
        my $base  = $sequence->{'base_width'};
        my $width = $sequence->{'width'};
        $Str .= $title.' 'x($width-$base).$padding;
    }
    $Str .= "total
\n"; $Str .= "
";
    #
    # Check for suppression of output
    if ($data =~ /^final table/) {
        $Str = '';
    }
    $r->print($Str);
    $r->rflush();
    return;
}

sub html_outputstudent {
    my ($r,$student) = @_;
    my $Str = '';
    #
    if($count++ % 5 == 0 && $count > 0 && $data !~ /^final table/) {
        $r->print("
");
    }
    # First, the @StudentData fields need to be listed
    my @to_show = &get_student_fields_to_show();
    foreach my $field (@to_show) {
        my $title=$student->{$field};
        my $base = length($title);
        my $width=$Apache::lonstatistics::StudentData{$field}->{'width'};
        $Str .= $title.' 'x($width-$base).$padding;
    }
    # Get ALL the students data
    my %StudentsData;
    my @tmp = &Apache::loncoursedata::get_current_state
        ($student->{'username'},$student->{'domain'},undef,
         $ENV{'request.course.id'});
    if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) {
        %StudentsData = @tmp;
    }
    if (scalar(@tmp) < 1) {
        $nodata_count++;
        return if ($data =~ /^final table/);
        $Str .= 'No Course Data'."\n";
        $r->print($Str);
        $r->rflush();
        return;
    }
    #
    # By sequence build up the data
    my $studentstats;
    my $PerformanceStr = '';
    foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
        my ($performance,$performance_length,$score,$seq_max,$rawdata);
        if ($base eq 'tries') {
            ($performance,$performance_length,$score,$seq_max,$rawdata) =
                &StudentTriesOnSequence($student,\%StudentsData,
                                        $seq,$show_links);
        } else {
            ($performance,$performance_length,$score,$seq_max,$rawdata) =
                &StudentPerformanceOnSequence($student,\%StudentsData,
                                              $seq,$show_links);
        }
        my $ratio = sprintf("%3d",$score).'/'.sprintf("%3d",$seq_max);
        #
        if ($data eq 'sum and total' || $data eq 'parts correct total') {
            $performance  = $ratio;
            $performance .= ' 'x($seq->{'width'}-length($ratio));
        } elsif ($data eq 'sum only' || $data eq 'parts correct') {
            $performance  = $score;
            $performance .= ' 'x($seq->{'width'}-length($score));
        } else {
            # Pad with extra spaces
            $performance .= ' 'x($seq->{'width'}-$performance_length-
                                 length($ratio)
                                 ).$ratio;
        }
        #
        $Str .= $performance.$padding;
        #
        $studentstats->{$seq->{'symb'}}->{'score'}= $score;
        $studentstats->{$seq->{'symb'}}->{'max'}  = $seq_max;
    }
    #
    # Total it up and store the statistics info.
    my ($score,$max) = (0,0);
    while (my ($symb,$seq_stats) = each (%{$studentstats})) {
        $Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
        if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
            $Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
        }
        $score += $seq_stats->{'score'};
        $max   += $seq_stats->{'max'};
    }
    $Str .= ' '.' 'x(length($max)-length($score)).$score.'/'.$max;
    $Str .= " \n";
    #
    # Check for suppressed output and update the progress window if so...
    if ($data =~ /^final table/) {
        $Str = '';
        &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
                                                 'last student');
    }
    #
    $r->print($Str);
    #
    $r->rflush();
    return;
}    

sub html_finish {
    my ($r) = @_;
    #
    # Check for suppressed output and close the progress window if so
    if ($data =~ /^final table/) {
        &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
    } else {
        $r->print("
\n"); } if ($single_student_mode) { $r->print(&SingleStudentTotal()); } else { $r->print(&StudentAverageTotal()); } $r->rflush(); return; } sub StudentAverageTotal { my $Str = "

Summary Tables

\n"; my $num_students = scalar(@Apache::lonstatistics::Students); my $total_ave = 0; my $total_max = 0; $Str .= ''."\n"; $Str .= "\n"; foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) { my $ave; if ($num_students > $nodata_count) { $ave = int(100*($Statistics->{$seq->{'symb'}}->{'score'}/ ($num_students-$nodata_count)))/100; } else { $ave = 0; } $total_ave += $ave; my $max = $Statistics->{$seq->{'symb'}}->{'max'}; $total_max += $max; if ($ave == 0) { $ave = "0.00"; } $ave .= ' '; $max .= '   '; $Str .= ''. ''. ''."\n"; } $total_ave = int(100*$total_ave)/100; # only two digit $Str .= "
TitleAverageMaximum
'.$seq->{'title'}.''.$ave.''.$max.'
\n"; $Str .= ''."\n"; $Str .= ''. "\n"; $Str .= ''. ''; $Str .= "
Number of StudentsAverageMaximum
'.($num_students-$nodata_count).''.$total_ave.''.$total_max.'
\n"; return $Str; } sub SingleStudentTotal { my $student = &Apache::lonstatistics::current_student(); my $Str = "

Summary table for ".$student->{'fullname'}." ". $student->{'username'}.'@'.$student->{'domain'}."

\n"; $Str .= ''."\n"; $Str .= "\n"; my $total = 0; my $total_max = 0; foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) { my $value = $Statistics->{$seq->{'symb'}}->{'score'}; my $max = $Statistics->{$seq->{'symb'}}->{'max'}; $Str .= ''. ''. ''."\n"; $total += $value; $total_max +=$max; } $Str .= ''. ''. '\n"; $Str .= "
Sequence or FolderScoreMaximum
'.$seq->{'title'}.''.$value.''.$max.'
Total'.$total.''.$total_max."
\n"; return $Str; } } ####################################################### ####################################################### =pod =head2 Multi-Sheet EXCEL subroutines =item &multi_sheet_excel_initialize($r) =item &multi_sheet_excel_outputstudent($r,$student) =item &multi_sheet_excel_finish($r) =cut ####################################################### ####################################################### { sub multi_sheet_excel_initialize { my ($r)=@_; $r->print("

Not yet implemented

"); # # Estimate the size of the file. We would like to have < 5 megs of data. my $max_size = 5000000; my $num_students = scalar(@Apache::lonstatistics::Students); my $num_sequences = 0; my $num_data_per_part = 2; # 'status' and 'numtries' my $fields_per_student = scalar(&get_student_fields_to_show()); my $bytes_per_field = 20; # Back of the envelope calculation foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) { $num_sequences++ if ($seq->{'num_assess'} > 0); $fields_per_student += $num_data_per_part * $seq->{'num_assess_parts'}; } my $size_estimate = $fields_per_student*$num_students*$bytes_per_field; # # Compute number of workbooks my $num_workbooks = 1; if ($size_estimate > $max_size) { # try to stay under 5 megs $num_workbooks += int($size_estimate / $max_size); } # if ($data eq ) { # if (@Apache::lonstatistics::SelectedSections > 1 && # $Apache::lonstatistics::SelectedSections[0] ne 'all') { # $num_workbooks = scalar(@Apache::lonstatistics::SelectedSections); # } else { # # @Apache::lonstatistics::Sections contains 'all' as well. # $num_workbooks = scalar(@Apache::lonstatistics::Sections) - 1; # } # } $r->print("Maximum allowed size: ".$max_size." bytes
"); $r->print("Number of students: ".$num_students."
"); $r->print("Number of fields per student: ".$fields_per_student."
"); $r->print("Total number of fields: ".($fields_per_student*$num_students). "
"); $r->print("Bytes per field: ".$bytes_per_field." (estimated)"."
"); $r->print("Estimated size: ".$size_estimate." bytes
"); $r->print("Number of workbooks: ".$num_workbooks."
"); $r->rflush(); return; } sub multi_sheet_excel_outputstudent { my ($r,$student) = @_; } sub multi_sheet_excel_finish { my ($r) = @_; } } ####################################################### ####################################################### =pod =head2 EXCEL subroutines =item &excel_initialize($r) =item &excel_outputstudent($r,$student) =item &excel_finish($r) =cut ####################################################### ####################################################### { my $excel_sheet; my $excel_workbook; my $filename; my $rows_output; my $cols_output; my %prog_state; # progress window state my $request_aborted; sub excel_initialize { my ($r) = @_; # $request_aborted = undef; my $total_columns = scalar(&get_student_fields_to_show()); foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) { # Add 2 because we need a 'sum' and 'total' column for each $total_columns += $seq->{'num_assess_parts'}+2; } if ($data eq 'tries' && $total_columns > 255) { $r->print(<Unable to Complete Request

LON-CAPA is unable to produce your Excel spreadsheet because your selections will result in more than 255 columns. Excel allows only 255 columns in a spreadsheet.

You may consider reducing the number of Sequences or Folders you have selected.

LON-CAPA can produce CSV files of this data or Excel files of the summary data (Parts Correct or Parts Correct & Totals).

END $request_aborted = 1; } if ($data eq 'scores' && $total_columns > 255) { $r->print(<Unable to Complete Request

LON-CAPA is unable to produce your Excel spreadsheet because your selections will result in more than 255 columns. Excel allows only 255 columns in a spreadsheet.

You may consider reducing the number of Sequences or Folders you have selected.

LON-CAPA can produce CSV files of this data or Excel files of the summary data (Scores Sum or Scores Sum & Totals).

END $request_aborted = 1; } if ($data =~ /^final table/) { $r->print(<Unable to Complete Request

The Summary Table (Scores) option is not available for non-HTML output.

END $request_aborted = 1; } return if ($request_aborted); # $filename = '/prtspool/'. $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'. time.'_'.rand(1000000000).'.xls'; # $excel_workbook = undef; $excel_sheet = undef; # $rows_output = 0; $cols_output = 0; # # Create sheet $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename); # # Check for errors if (! defined($excel_workbook)) { $r->log_error("Error creating excel spreadsheet $filename: $!"); $r->print("Problems creating new Excel file. ". "This error has been logged. ". "Please alert your LON-CAPA administrator"); return ; } # # The excel spreadsheet stores temporary data in files, then put them # together. If needed we should be able to disable this (memory only). # The temporary directory must be specified before calling 'addworksheet'. # File::Temp is used to determine the temporary directory. $excel_workbook->set_tempdir($Apache::lonnet::tmpdir); # # Add a worksheet my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'}; if (length($sheetname) > 31) { $sheetname = substr($sheetname,0,31); } $excel_sheet = $excel_workbook->addworksheet($sheetname); # # Put the course description in the header $excel_sheet->write($rows_output,$cols_output++, $ENV{'course.'.$ENV{'request.course.id'}.'.description'}); $cols_output += 3; # # Put a description of the sections listed my $sectionstring = ''; my @Sections = @Apache::lonstatistics::SelectedSections; if (scalar(@Sections) > 1) { if (scalar(@Sections) > 2) { my $last = pop(@Sections); $sectionstring = "Sections ".join(', ',@Sections).', and '.$last; } else { $sectionstring = "Sections ".join(' and ',@Sections); } } else { if ($Sections[0] eq 'all') { $sectionstring = "All sections"; } else { $sectionstring = "Section ".$Sections[0]; } } $excel_sheet->write($rows_output,$cols_output++,$sectionstring); $cols_output += scalar(@Sections); # # Put the date in there too $excel_sheet->write($rows_output++,$cols_output++, 'Compiled on '.localtime(time)); # $cols_output = 0; $excel_sheet->write($rows_output++,$cols_output++,$datadescription); # if ($data eq 'tries' || $data eq 'scores') { $rows_output++; } # # Add the student headers $cols_output = 0; foreach my $field (&get_student_fields_to_show()) { $excel_sheet->write($rows_output,$cols_output++,$field); } my $row_offset = 0; if ($data eq 'tries' || $data eq 'scores') { $row_offset = -1; } # # Add the remaining column headers foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) { $excel_sheet->write($rows_output+$row_offset, $cols_output,$seq->{'title'}); if ($data eq 'tries' || $data eq 'scores') { foreach my $res (@{$seq->{'contents'}}) { next if ($res->{'type'} ne 'assessment'); if (scalar(@{$res->{'parts'}}) > 1) { foreach my $part (@{$res->{'parts'}}) { $excel_sheet->write($rows_output, $cols_output++, $res->{'title'}.' part '.$part); } } else { $excel_sheet->write($rows_output, $cols_output++, $res->{'title'}); } } $excel_sheet->write($rows_output,$cols_output++,'score'); $excel_sheet->write($rows_output,$cols_output++,'maximum'); } elsif ($data eq 'sum and total' || $data eq 'parts correct total') { $excel_sheet->write($rows_output+1,$cols_output,'score'); $excel_sheet->write($rows_output+1,$cols_output+1,'maximum'); $cols_output += 2; } else { $cols_output++; } } # # Bookkeeping if ($data eq 'sum and total' || $data eq 'parts correct total') { $rows_output += 2; } else { $rows_output += 1; } # # Output a row for MAX $cols_output = 0; foreach my $field (&get_student_fields_to_show()) { if ($field eq 'username' || $field eq 'fullname' || $field eq 'id') { $excel_sheet->write($rows_output,$cols_output++,'Maximum'); } else { $excel_sheet->write($rows_output,$cols_output++,''); } } # # Add the maximums for each sequence or assessment foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) { my $weight; my $max = 0; foreach my $resource (@{$seq->{'contents'}}) { next if ($resource->{'type'} ne 'assessment'); foreach my $part (@{$resource->{'parts'}}) { $weight = 1; if ($base eq 'scores') { $weight = &Apache::lonnet::EXT ('resource.'.$part.'.weight',$resource->{'symb'}, undef,undef,undef); if (!defined($weight) || ($weight eq '')) { $weight=1; } } if ($data eq 'scores') { $excel_sheet->write($rows_output,$cols_output++,$weight); } elsif ($data eq 'tries') { $excel_sheet->write($rows_output,$cols_output++,''); } $max += $weight; } } if (! ($data eq 'sum only' || $data eq 'parts correct')) { $excel_sheet->write($rows_output,$cols_output++,''); } $excel_sheet->write($rows_output,$cols_output++,$max); } $rows_output++; # # Let the user know what we are doing my $studentcount = scalar(@Apache::lonstatistics::Students); $r->print("

Compiling Excel spreadsheet for ". $studentcount.' student'); $r->print('s') if ($studentcount > 1); $r->print("

\n"); $r->rflush(); # # Initialize progress window %prog_state=&Apache::lonhtmlcommon::Create_PrgWin ($r,'Excel File Compilation Status', 'Excel File Compilation Progress', $studentcount); # return; } sub excel_outputstudent { my ($r,$student) = @_; return if ($request_aborted); return if (! defined($excel_sheet)); $cols_output=0; # # Write out student data my @to_show = &get_student_fields_to_show(); foreach my $field (@to_show) { $excel_sheet->write($rows_output,$cols_output++,$student->{$field}); } # # Get student assessment data my %StudentsData; my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'}, $student->{'domain'}, undef, $ENV{'request.course.id'}); if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) { %StudentsData = @tmp; } # # Write out sequence scores and totals data foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) { my ($performance,$performance_length,$score,$seq_max,$rawdata); if ($base eq 'tries') { ($performance,$performance_length,$score,$seq_max,$rawdata) = &StudentTriesOnSequence($student,\%StudentsData, $seq,'no'); } else { ($performance,$performance_length,$score,$seq_max,$rawdata) = &StudentPerformanceOnSequence($student,\%StudentsData, $seq,'no'); } if ($data eq 'tries' || $data eq 'scores') { foreach my $value (@$rawdata) { $excel_sheet->write($rows_output,$cols_output++,$value); } $excel_sheet->write($rows_output,$cols_output++,$score); $excel_sheet->write($rows_output,$cols_output++,$seq_max); } elsif ($data eq 'sum and total' || $data eq 'sum only' || $data eq 'parts correct' || $data eq 'parts correct total') { $excel_sheet->write($rows_output,$cols_output++,$score); } if ($data eq 'sum and total' || $data eq 'parts correct total') { $excel_sheet->write($rows_output,$cols_output++,$seq_max); } } # # Bookkeeping $rows_output++; $cols_output=0; # # Update the progress window &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student'); return; } sub excel_finish { my ($r) = @_; return if ($request_aborted); return if (! defined($excel_sheet)); # # Write the excel file $excel_workbook->close(); my $c = $r->connection(); # return if($c->aborted()); # # Close the progress window &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); # # Tell the user where to get their excel file $r->print('
'. 'Your Excel spreadsheet.'."\n"); $r->rflush(); return; } } ####################################################### ####################################################### =pod =head2 CSV output routines =item &csv_initialize($r) =item &csv_outputstudent($r,$student) =item &csv_finish($r) =cut ####################################################### ####################################################### { my $outputfile; my $filename; my $request_aborted; my %prog_state; # progress window state sub csv_initialize{ my ($r) = @_; # # Clean up $filename = undef; $outputfile = undef; undef(%prog_state); # # Deal with unimplemented requests $request_aborted = undef; if ($data =~ /final table/) { $r->print(<Unable to Complete Request

The Summary Table (Scores) option is not available for non-HTML output.

END $request_aborted = 1; } return if ($request_aborted); # # Open a file $filename = '/prtspool/'. $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'. time.'_'.rand(1000000000).'.csv'; unless ($outputfile = Apache::File->new('>/home/httpd'.$filename)) { $r->log_error("Couldn't open $filename for output $!"); $r->print("Problems occured in writing the csv file. ". "This error has been logged. ". "Please alert your LON-CAPA administrator."); $outputfile = undef; } # # Datestamp my $description = $ENV{'course.'.$ENV{'request.course.id'}.'.description'}; print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'. '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'. "\n"; # # Print out the headings my $Str = ''; my $Str2 = undef; foreach my $field (&get_student_fields_to_show()) { if ($data eq 'sum only') { $Str .= '"'.&Apache::loncommon::csv_translate($field).'",'; } elsif ($data eq 'sum and total' || $data eq 'parts correct total') { $Str .= '"",'; # first row empty on the student fields $Str2 .= '"'.&Apache::loncommon::csv_translate($field).'",'; } elsif ($data eq 'scores' || $data eq 'tries' || $data eq 'parts correct') { $Str .= '"",'; $Str2 .= '"'.&Apache::loncommon::csv_translate($field).'",'; } } foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) { if ($data eq 'sum only' || $data eq 'parts correct') { $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}). '",'; } elsif ($data eq 'sum and total' || $data eq 'parts correct total') { $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}). '","",'; $Str2 .= '"score","total possible",'; } elsif ($data eq 'scores' || $data eq 'tries') { $Str .= '"'.&Apache::loncommon::csv_translate($seq->{'title'}). '",'; $Str .= '"",'x($seq->{'num_assess_parts'}-1+2); foreach my $res (@{$seq->{'contents'}}) { next if ($res->{'type'} ne 'assessment'); foreach my $part (@{$res->{'parts'}}) { $Str2 .= '"'.&Apache::loncommon::csv_translate($res->{'title'}.', Part '.$part).'",'; } } $Str2 .= '"score","total possible",'; } } chop($Str); $Str .= "\n"; print $outputfile $Str; if (defined($Str2)) { chop($Str2); $Str2 .= "\n"; print $outputfile $Str2; } # # Initialize progress window my $studentcount = scalar(@Apache::lonstatistics::Students); %prog_state=&Apache::lonhtmlcommon::Create_PrgWin ($r,'CSV File Compilation Status', 'CSV File Compilation Progress', $studentcount); return; } sub csv_outputstudent { my ($r,$student) = @_; return if ($request_aborted); return if (! defined($outputfile)); my $Str = ''; # # Output student fields my @to_show = &get_student_fields_to_show(); foreach my $field (@to_show) { $Str .= '"'.&Apache::loncommon::csv_translate($student->{$field}).'",'; } # # Get student assessment data my %StudentsData; my @tmp = &Apache::loncoursedata::get_current_state($student->{'username'}, $student->{'domain'}, undef, $ENV{'request.course.id'}); if ((scalar @tmp > 0) && ($tmp[0] !~ /^error:/)) { %StudentsData = @tmp; } # # Output performance data foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) { my ($performance,$performance_length,$score,$seq_max,$rawdata); if ($base eq 'tries') { ($performance,$performance_length,$score,$seq_max,$rawdata) = &StudentTriesOnSequence($student,\%StudentsData, $seq,'no'); } else { ($performance,$performance_length,$score,$seq_max,$rawdata) = &StudentPerformanceOnSequence($student,\%StudentsData, $seq,'no'); } if ($data eq 'sum only' || $data eq 'parts correct') { $Str .= '"'.$score.'",'; } elsif ($data eq 'sum and total' || $data eq 'parts correct total') { $Str .= '"'.$score.'","'.$seq_max.'",'; } elsif ($data eq 'scores' || $data eq 'tries') { $Str .= '"'.join('","',(@$rawdata,$score,$seq_max)).'",'; } } chop($Str); $Str .= "\n"; print $outputfile $Str; # # Update the progress window &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,'last student'); return; } sub csv_finish { my ($r) = @_; return if ($request_aborted); return if (! defined($outputfile)); close($outputfile); # my $c = $r->connection(); return if ($c->aborted()); # # Close the progress window &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state); # # Tell the user where to get their csv file $r->print('
'. 'Your csv file.'."\n"); $r->rflush(); return; } } ####################################################### ####################################################### =pod =item &StudentTriesOnSequence() Inputs: =over 4 =item $student =item $studentdata Hash ref to all student data =item $seq Hash ref, the sequence we are working on =item $links if defined we will output links to each resource. =back =cut ####################################################### ####################################################### sub StudentTriesOnSequence { my ($student,$studentdata,$seq,$links) = @_; $links = 'no' if (! defined($links)); my $Str = ''; my ($sum,$max) = (0,0); my $performance_length = 0; my @TriesData = (); my $tries; foreach my $resource (@{$seq->{'contents'}}) { next if ($resource->{'type'} ne 'assessment'); my $resource_data = $studentdata->{$resource->{'symb'}}; my $value = ''; foreach my $partnum (@{$resource->{'parts'}}) { $tries = undef; $max++; $performance_length++; my $symbol = ' '; # default to space # if (exists($resource_data->{'resource.'.$partnum.'.solved'})) { my $status = $resource_data->{'resource.'.$partnum.'.solved'}; if ($status eq 'correct_by_override') { $symbol = '+'; $sum++; } elsif ($status eq 'incorrect_by_override') { $symbol = '-'; } elsif ($status eq 'ungraded_attempted') { $symbol = '#'; } elsif ($status eq 'incorrect_attempted') { $symbol = '.'; } elsif ($status eq 'excused') { $symbol = 'x'; $max--; } elsif ($status eq 'correct_by_student' && exists($resource_data->{'resource.'.$partnum.'.tries'})){ $tries = $resource_data->{'resource.'.$partnum.'.tries'}; if ($tries > 9) { $symbol = '*'; } elsif ($tries > 0) { $symbol = $tries; } else { $symbol = ' '; } $sum++; } elsif (exists($resource_data->{'resource.'. $partnum.'.tries'})){ $symbol = '.'; } else { $symbol = ' '; } } else { # Unsolved. Did they try? if (exists($resource_data->{'resource.'.$partnum.'.tries'})){ $symbol = '.'; } else { $symbol = ' '; } } # if (! defined($tries)) { $tries = $symbol; } push (@TriesData,$tries); # if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) { if (length($symbol) > 1) { &Apache::lonnet::logthis('length of symbol "'.$symbol.'" > 1'); } $symbol = ''.$symbol.''; } $value .= $symbol; } $Str .= $value; } if ($seq->{'randompick'}) { $max = $seq->{'randompick'}; } return ($Str,$performance_length,$sum,$max,\@TriesData); } ####################################################### ####################################################### =pod =item &StudentPerformanceOnSequence() Inputs: =over 4 =item $student =item $studentdata Hash ref to all student data =item $seq Hash ref, the sequence we are working on =item $links if defined we will output links to each resource. =back =cut ####################################################### ####################################################### sub StudentPerformanceOnSequence { my ($student,$studentdata,$seq,$links) = @_; $links = 'no' if (! defined($links)); my $Str = ''; # final result string my ($score,$max) = (0,0); my $performance_length = 0; my $symbol; my @ScoreData = (); my $partscore; foreach my $resource (@{$seq->{'contents'}}) { next if ($resource->{'type'} ne 'assessment'); my $resource_data = $studentdata->{$resource->{'symb'}}; foreach my $part (@{$resource->{'parts'}}) { $partscore = undef; my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight', $resource->{'symb'}, $student->{'domain'}, $student->{'username'}, $student->{'section'}); if (!defined($weight) || ($weight eq '')) { $weight=1; } # $max += $weight; # see the 'excused' branch below... $performance_length++; # one character per part $symbol = ' '; # default to space # my $awarded = 0; if (exists($resource_data->{'resource.'.$part.'.awarded'})) { $awarded = $resource_data->{'resource.'.$part.'.awarded'}; } # $partscore = $weight*$awarded; $score += $partscore; $symbol = $weight; if (length($symbol) > 1) { $symbol = '*'; } if (exists($resource_data->{'resource.'.$part.'.solved'})) { my $status = $resource_data->{'resource.'.$part.'.solved'}; if ($status eq 'excused') { $symbol = 'x'; $max -= $weight; # Do not count 'excused' problems. } } else { # Unsolved. Did they try? if (exists($resource_data->{'resource.'.$part.'.tries'})){ $symbol = '.'; } else { $symbol = ' '; } } # if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) { $symbol = ''.$symbol.''; } if (! defined($partscore)) { $partscore = $symbol; } push (@ScoreData,$partscore); } $Str .= $symbol; } return ($Str,$performance_length,$score,$max,\@ScoreData); } ####################################################### ####################################################### =pod =item &CreateLegend() This function returns a formatted string containing the legend for the chart. The legend describes the symbols used to represent grades for problems. =cut ####################################################### ####################################################### sub CreateLegend { my $Str = "

".
              "   1  correct by student in 1 try\n".
              "   7  correct by student in 7 tries\n".
              "   *  correct by student in more than 9 tries\n".
	      "   +  correct by hand grading or override\n".
              "   -  incorrect by override\n".
	      "   .  incorrect attempted\n".
	      "   #  ungraded attempted\n".
              "      not attempted (blank field)\n".
	      "   x  excused".
              "

"; return $Str; } ####################################################### ####################################################### =pod =back =cut ####################################################### ####################################################### 1; __END__