# The LearningOnline Network with CAPA
#
# $Id: lonstudentassessment.pm,v 1.102 2004/07/13 15:03:34 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::loncommon();
use Apache::loncoursedata;
use Apache::lonnet; # for logging porpoises
use Apache::lonlocal;
use Spreadsheet::WriteExcel;
use Spreadsheet::WriteExcel::Utility();
#######################################################
#######################################################
=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 $single_student_mode evaluates to true if we are showing only one
student.
=cut
#######################################################
#######################################################
my $show_links;
my $output_mode;
my $chosen_output;
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);
undef($show_links);
undef($output_mode);
undef($chosen_output);
undef($single_student_mode);
#
my %Saveable_Parameters = ('Status' => 'scalar',
'chartoutputmode' => 'scalar',
'chartoutputdata' => 'scalar',
'Section' => 'array',
'StudentData' => 'array',
'Maps' => 'array');
&Apache::loncommon::store_course_settings('chart',\%Saveable_Parameters);
&Apache::loncommon::restore_course_settings('chart',\%Saveable_Parameters);
#
&Apache::lonstatistics::PrepareClasslist();
#
$single_student_mode = 0;
$single_student_mode = 1 if ($ENV{'form.SelectedStudent'});
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
['selectstudent']);
if ($ENV{'form.selectstudent'}) {
&Apache::lonstatistics::DisplayClasslist($r);
return;
}
#
# 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('<input type="hidden" name="notfirstrun" value="true" />');
$r->print('<input type="hidden" name="sort" value="'.
$ENV{'form.sort'}.'" />');
$r->rflush();
#
if (! exists($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;
}
#
# Perform generic initialization tasks
# Since we use lonnet::EXT to retrieve problem weights,
# to ensure current data we must clear the caches out.
# This makes sure that parameter changes at the student level
# are immediately reflected in the chart.
&Apache::lonnet::clear_EXT_cache_status();
#
# Clean out loncoursedata's package data, just to be safe.
&Apache::loncoursedata::clear_internal_caches();
#
# 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 .= '<input type="hidden" name="SelectedStudent" value="'.
$ENV{'form.SelectedStudent'}.'" />';
#
# Build the previous student link
my $previous = &Apache::lonstatistics::previous_student();
my $previousbutton = '';
if (defined($previous)) {
my $sname = $previous->{'username'}.':'.$previous->{'domain'};
$previousbutton .= '<input type="button" value="'.
'Previous Student ('.
$previous->{'username'}.'@'.$previous->{'domain'}.')'.
'" onclick="document.Statistics.SelectedStudent.value='.
"'".$sname."'".';'.
'document.Statistics.submit();" />';
} else {
$previousbutton .= '<input type="button" value="'.
'Previous student (none)'.'" />';
}
#
# Build the next student link
my $next = &Apache::lonstatistics::next_student();
my $nextbutton = '';
if (defined($next)) {
my $sname = $next->{'username'}.':'.$next->{'domain'};
$nextbutton .= '<input type="button" value="'.
'Next Student ('.
$next->{'username'}.'@'.$next->{'domain'}.')'.
'" onclick="document.Statistics.SelectedStudent.value='.
"'".$sname."'".';'.
'document.Statistics.submit();" />';
} else {
$nextbutton .= '<input type="button" value="'.
'Next student (none)'.'" />';
}
#
# Build the 'all students' button
my $all = '';
$all .= '<input type="button" value="All Students" '.
'" onclick="document.Statistics.SelectedStudent.value='.
"''".';'.'document.Statistics.submit();" />';
$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 .= &Apache::lonhtmlcommon::breadcrumbs(undef,'Chart');
# $Str .= &CreateLegend();
$Str .= '<table cellspacing="5">'."\n";
$Str .= '<tr>';
$Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
$Str .= '<td align="center"><b>'.&mt('Student Data</b>').'</td>';
$Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
$Str .= '<td align="center"><b>'.&mt('Sequences and Folders').'</b></td>';
$Str .= '<td align="center"><b>'.&mt('Output Format').'</b>'.
&Apache::loncommon::help_open_topic("Chart_Output_Formats").
'</td>';
$Str .= '<td align="center"><b>'.&mt('Output Data').'</b>'.
&Apache::loncommon::help_open_topic("Chart_Output_Data").
'</td>';
$Str .= '</tr>'."\n";
#
$Str .= '<tr><td align="center">'."\n";
$Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
$Str .= '</td><td align="center">';
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 .= '</td><td>'."\n";
$Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
$Str .= '</td><td>'."\n";
$Str .= &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
$only_seq_with_assessments);
$Str .= '</td><td>'."\n";
$Str .= &CreateAndParseOutputSelector();
$Str .= '</td><td>'."\n";
$Str .= &CreateAndParseOutputDataSelector();
$Str .= '</td></tr>'."\n";
$Str .= '</table>'."\n";
$Str .= '<input type="submit" name="Generate Chart" value="'.
&mt('Generate Chart').'" />';
$Str .= ' 'x5;
$Str .= '<input type="submit" name="selectstudent" value="'.
&mt('Select One Student').'" />';
$Str .= ' 'x5;
$Str .= '<input type="submit" name="ClearCache" value="'.
&mt('Clear Caches').'" />';
$Str .= ' 'x5;
$Str .= '<br />';
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 => 'CSV',
value => 'csv',
description => 'Output a comma separated values file suitable for '.
'import into a spreadsheet program. Using this method as opposed '.
'to Excel output allows you to organize your data before importing'.
' it into a spreadsheet program.',
mode => 'csv',
show_links => 'no',
},
);
sub OutputDescriptions {
my $Str = '';
$Str .= "<h2>Output Formats</h2>\n";
$Str .= "<dl>\n";
foreach my $outputmode (@OutputOptions) {
$Str .=" <dt>".$outputmode->{'name'}."</dt>\n";
$Str .=" <dd>".$outputmode->{'description'}."</dd>\n";
}
$Str .= "</dl>\n";
return $Str;
}
sub CreateAndParseOutputSelector {
my $Str = '';
my $elementname = 'chartoutputmode';
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
[$elementname]);
#
# 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
$Str = qq/<select size="5" name="$elementname">/;
foreach my $option (@OutputOptions) {
$Str .= "\n".' <option value="'.$option->{'value'}.'"';
$Str .= " selected " if ($option->{'value'} eq $selected);
$Str .= ">".&mt($option->{'name'})."<\/option>";
}
$Str .= "\n</select>";
return $Str;
}
##
## Data selector stuff
##
my @OutputDataOptions =
(
{ name => 'Scores Summary',
base => 'scores',
value => 'sum and total',
scores => 1,
tries => 0,
every_problem => 0,
sequence_sum => 1,
sequence_max => 1,
grand_total => 1,
grand_maximum => 1,
summary_table => 1,
maximum_row => 1,
shortdesc => 'Total Score and Maximum Possible for each '.
'Sequence or Folder',
longdesc => 'The score of each student as well as the '.
' maximum possible on each Sequence or Folder.',
},
{ name => 'Scores Per Problem',
base => 'scores',
value => 'scores',
scores => 1,
tries => 0,
correct => 0,
every_problem => 1,
sequence_sum => 1,
sequence_max => 1,
grand_total => 1,
grand_maximum => 1,
summary_table => 1,
maximum_row => 1,
shortdesc => 'Score on each Problem Part',
longdesc =>'The students score on each problem part, computed as'.
'the part weight * part awarded',
},
{ name =>'Tries',
base =>'tries',
value => 'tries',
scores => 0,
tries => 1,
correct => 0,
every_problem => 1,
sequence_sum => 0,
sequence_max => 0,
grand_total => 0,
grand_maximum => 0,
summary_table => 0,
maximum_row => 0,
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 total',
scores => 0,
tries => 0,
correct => 1,
every_problem => 1,
sequence_sum => 1,
sequence_max => 1,
grand_total => 1,
grand_maximum => 1,
summary_table => 1,
maximum_row => 0,
shortdesc => 'Number of Problem Parts completed successfully.',
longdesc => 'The Number of Problem Parts completed successfully and '.
'the maximum possible for each student',
},
);
sub HTMLifyOutputDataDescriptions {
my $Str = '';
$Str .= "<h2>Output Data</h2>\n";
$Str .= "<dl>\n";
foreach my $option (@OutputDataOptions) {
$Str .= ' <dt>'.$option->{'name'}.'</dt>';
$Str .= '<dd>'.$option->{'longdesc'}.'</dd>'."\n";
}
$Str .= "</dl>\n";
return $Str;
}
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};
}
}
#
$chosen_output = $OutputDataOptions[0];
foreach my $option (@OutputDataOptions) {
if ($option->{'value'} eq $selected) {
$chosen_output = $option;
}
}
#
# Build the form element
$Str = qq/<select size="5" name="$elementname">/;
foreach my $option (@OutputDataOptions) {
$Str .= "\n".' <option value="'.$option->{'value'}.'"';
$Str .= " selected " if ($option->{'value'} eq $chosen_output->{'value'});
$Str .= ">".&mt($option->{'name'})."<\/option>";
}
$Str .= "\n</select>";
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
my $total_sum_width;
sub html_initialize {
my ($r) = @_;
#
$padding = ' 'x3;
$count = 0;
$nodata_count = 0;
undef(%prog_state);
#
$r->print("<h3>".$ENV{'course.'.$ENV{'request.course.id'}.'.description'}.
" ".localtime(time)."</h3>");
if ($chosen_output->{'base'} !~ /^final table/) {
$r->print("<h3>".$chosen_output->{'shortdesc'}."</h3>");
}
my $Str = "<pre>\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;
}
#
# Compute the column widths and output the sequence titles
my $total_count;
foreach my $sequence (&Apache::lonstatistics::Sequences_with_Assess()){
#
# Comptue column widths
$sequence->{'width_sum'} = 0;
if ($chosen_output->{'sequence_sum'}) {
if ($chosen_output->{'every_problem'}) {
# Use 1 digit for a space
$sequence->{'width_sum'} += 1;
}
$total_count += $sequence->{'num_assess_parts'};
# Use 3 digits for the sum
$sequence->{'width_sum'} += 3;
}
if ($chosen_output->{'sequence_max'}) {
if ($sequence->{'width_sum'}>0) {
# One digit for the '/'
$sequence->{'width_sum'} +=1;
}
# Use 3 digits for the total
$sequence->{'width_sum'}+=3;
}
#
if ($chosen_output->{'every_problem'}) {
# one problem per digit
$sequence->{'width_problem'} = $sequence->{'num_assess_parts'};
} else {
$sequence->{'width_problem'} = 0;
}
$sequence->{'width_total'} = $sequence->{'width_problem'} +
$sequence->{'width_sum'};
if ($sequence->{'width_total'} < length(&HTML::Entities::decode($sequence->{'title'}))) {
$sequence->{'width_total'} = length(&HTML::Entities::decode($sequence->{'title'}));
}
#
# Output the sequence titles
$Str .=
$sequence->{'title'}.' 'x($sequence->{'width_total'}-
length($sequence->{'title'})
).$padding;
}
$total_sum_width = length($total_count)+1;
$Str .= " total</pre>\n";
$Str .= "<pre>";
$r->print($Str);
$r->rflush();
return;
}
sub html_outputstudent {
my ($r,$student) = @_;
my $Str = '';
#
if($count++ % 5 == 0 && $count > 0) {
$r->print("</pre><pre>");
}
# 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++;
$Str .= '<font color="blue">No Course Data</font>'."\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 ($chosen_output->{'tries'}) {
($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 $ratio='';
if ($chosen_output->{'every_problem'}) {
$ratio .= ' ';
}
if ($chosen_output->{'sequence_sum'} && $score ne ' ') {
$ratio .= sprintf("%3.0f",$score);
} elsif($chosen_output->{'sequence_sum'}) {
$ratio .= ' 'x3;
}
if ($chosen_output->{'sequence_max'}) {
if ($chosen_output->{'sequence_sum'}) {
$ratio .= '/';
}
$ratio .= sprintf("%3.0f",$seq_max);
}
#
if (! $chosen_output->{'every_problem'}) {
$performance = '';
$performance_length=0;
}
$performance .= ' 'x($seq->{'width_total'}-$performance_length-$seq->{'width_sum'}).
$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,$max);
while (my ($symb,$seq_stats) = each (%{$studentstats})) {
$Statistics->{$symb}->{'score'} += $seq_stats->{'score'};
if ($Statistics->{$symb}->{'max'} < $seq_stats->{'max'}) {
$Statistics->{$symb}->{'max'} = $seq_stats->{'max'};
}
if ($seq_stats->{'score'} ne ' ') {
$score += $seq_stats->{'score'};
$Statistics->{$symb}->{'num_students'}++;
}
$max += $seq_stats->{'max'};
}
if (! defined($score)) {
$score = ' ' x $total_sum_width;
}
$Str .= ' '.' 'x($total_sum_width-length($score)).$score.' / '.$max;
$Str .= " \n";
#
$r->print($Str);
#
$r->rflush();
return;
}
sub html_finish {
my ($r) = @_;
#
# Check for suppressed output and close the progress window if so
$r->print("</pre>\n");
if ($chosen_output->{'summary_table'}) {
if ($single_student_mode) {
$r->print(&SingleStudentTotal());
} else {
$r->print(&StudentAverageTotal());
}
}
$r->rflush();
return;
}
sub StudentAverageTotal {
my $Str = "<h3>Summary Tables</h3>\n";
# my $max_students;
# my $total_ave = 0;
# my $total_max = 0;
$Str .= '<table border=2 cellspacing="1">'."\n";
$Str .= "<tr><th>Title</th><th>Average</th><th>Maximum</th></tr>\n";
foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
my $ave;
my $num_students = $Statistics->{$seq->{'symb'}}->{'num_students'};
# if ($num_students > $max_students) {
# $max_students = $num_students;
# }
if ($num_students > 0) {
$ave = int(100*
($Statistics->{$seq->{'symb'}}->{'score'}/$num_students)
)/100;
} else {
$ave = 0;
}
# $total_ave += $ave;
my $max = $Statistics->{$seq->{'symb'}}->{'max'};
# $total_max += $max;
$ave = sprintf("%.2f",$ave);
$Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
'<td align="right">'.$ave.' </td>'.
'<td align="right">'.$max.' '.'</td></tr>'."\n";
}
# $total_ave = sprintf('%.2f',$total_ave); # only two digit
$Str .= "</table>\n";
# $Str .= '<table border=2 cellspacing="1">'."\n";
# $Str .= '<tr><th>Number of Students</th><th>Average</th>'.
# "<th>Maximum</th></tr>\n";
# $Str .= '<tr>'.
# '<td align="right">'.$max_students.'</td>'.
# '<td align="right">'.$total_ave.' '.'</td>'.
# '<td align="right">'.$total_max.' '.'</td>';
# $Str .= "</table>\n";
return $Str;
}
sub SingleStudentTotal {
my $student = &Apache::lonstatistics::current_student();
my $Str = "<h3>Summary table for ".$student->{'fullname'}." ".
$student->{'username'}.'@'.$student->{'domain'}."</h3>\n";
$Str .= '<table border=2 cellspacing="1">'."\n";
$Str .=
"<tr><th>Sequence or Folder</th><th>Score</th><th>Maximum</th></tr>\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'};
$Str .= '<tr><td>'.$seq->{'title'}.'</td>'.
'<td align="right">'.$value.'</td>'.
'<td align="right">'.$max.'</td></tr>'."\n";
$total += $value;
$total_max +=$max;
}
$Str .= '<tr><td><b>Total</b></td>'.
'<td align="right">'.$total.'</td>'.
'<td align="right">'.$total_max."</td></tr>\n";
$Str .= "</table>\n";
return $Str;
}
}
#######################################################
#######################################################
=pod
=head2 EXCEL subroutines
=item &excel_initialize($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;
my $total_formula;
my $maximum_formula;
sub excel_initialize {
my ($r) = @_;
#
undef ($excel_sheet);
undef ($excel_workbook);
undef ($filename);
undef ($rows_output);
undef ($cols_output);
undef (%prog_state);
undef ($request_aborted);
undef ($total_formula);
undef ($maximum_formula);
#
my $total_columns = scalar(&get_student_fields_to_show());
my $num_students = scalar(@Apache::lonstatistics::Students);
#
foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
if ($chosen_output->{'every_problem'}) {
$total_columns += $seq->{'num_assess_parts'};
}
# Add 2 because we need a 'sequence_sum' and 'total' column for each
$total_columns += 2;
}
if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
$r->print(<<END);
<h2>Unable to Complete Request</h2>
<p>
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.
</p><p>
You may consider reducing the number of <b>Sequences or Folders</b> you
have selected.
</p><p>
LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
summary data (<b>Parts Correct</b> or <b>Parts Correct & Totals</b>).
</p>
END
$request_aborted = 1;
}
if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
$r->print(<<END);
<h2>Unable to Complete Request</h2>
<p>
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.
</p><p>
You may consider reducing the number of <b>Sequences or Folders</b> you
have selected.
</p><p>
LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the
<b>Scores Summary</b> data.
</p>
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;
#
# Determine rows
my $header_row = $rows_output++;
my $description_row = $rows_output++;
$rows_output++; # blank row
my $summary_header_row;
if ($chosen_output->{'summary_table'}) {
$summary_header_row = $rows_output++;
$rows_output+= scalar(&Apache::lonstatistics::Sequences_with_Assess());
$rows_output++;
}
my $sequence_name_row = $rows_output++;
my $resource_name_row = $rows_output++;
my $maximum_data_row = $rows_output++;
if (! $chosen_output->{'maximum_row'}) {
$rows_output--;
}
my $first_data_row = $rows_output++;
#
# 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);
#
my $format = &Apache::loncommon::define_excel_formats($excel_workbook);
#
# Add a worksheet
my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
$sheetname = &Apache::loncommon::clean_excel_name($sheetname);
$excel_sheet = $excel_workbook->addworksheet($sheetname);
#
# Put the course description in the header
$excel_sheet->write($header_row,$cols_output++,
$ENV{'course.'.$ENV{'request.course.id'}.'.description'},
$format->{'h1'});
$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];
}
}
$excel_sheet->write($header_row,$cols_output++,$sectionstring,
$format->{'h3'});
$cols_output += scalar(@Sections);
#
# Put the date in there too
$excel_sheet->write($header_row,$cols_output++,
'Compiled on '.localtime(time),$format->{'h3'});
#
$cols_output = 0;
$excel_sheet->write($description_row,$cols_output++,
$chosen_output->{'shortdesc'},
$format->{'h3'});
##############################################
# Output headings for the raw data
##############################################
#
# Add the student headers
$cols_output = 0;
foreach my $field (&get_student_fields_to_show()) {
$excel_sheet->write($resource_name_row,$cols_output++,$field,
$format->{'bold'});
}
#
# Add the remaining column headers
my $total_formula_string = '=0';
my $maximum_formula_string = '=0';
foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
$excel_sheet->write($sequence_name_row,,
$cols_output,$seq->{'title'},$format->{'bold'});
# Determine starting cell
$seq->{'Excel:startcell'}=
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($first_data_row,$cols_output);
$seq->{'Excel:startcol'}=$cols_output;
my $count = 0;
if ($chosen_output->{'every_problem'}) {
# Put the names of the problems and parts into the sheet
foreach my $res (@{$seq->{'contents'}}) {
if ($res->{'type'} ne 'assessment' ||
! exists($res->{'parts'}) ||
ref($res->{'parts'}) ne 'ARRAY' ||
scalar(@{$res->{'parts'}}) < 1) {
next;
}
if (scalar(@{$res->{'parts'}}) > 1) {
foreach my $part (@{$res->{'parts'}}) {
$excel_sheet->write($resource_name_row,
$cols_output++,
$res->{'title'}.' part '.$part,
$format->{'bold'});
}
} else {
$excel_sheet->write($resource_name_row,
$cols_output++,
$res->{'title'},$format->{'bold'});
}
$count++;
}
}
# Determine ending cell
if ($count <= 1) {
$seq->{'Excel:endcell'} = $seq->{'Excel:startcell'};
$seq->{'Excel:endcol'} = $seq->{'Excel:startcol'};
} else {
$seq->{'Excel:endcell'} =
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($first_data_row,$cols_output-1);
$seq->{'Excel:endcol'} = $cols_output-1;
}
# Create the formula for summing up this sequence
if (! exists($seq->{'Excel:endcell'}) ||
! defined($seq->{'Excel:endcell'})) {
$seq->{'Excel:endcell'} = $seq->{'Excel:startcell'};
}
$seq->{'Excel:sum'}= $excel_sheet->store_formula
('=SUM('.$seq->{'Excel:startcell'}.
':'.$seq->{'Excel:endcell'}.')');
# Determine cell the score is held in
$seq->{'Excel:scorecell'} =
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($first_data_row,$cols_output);
$seq->{'Excel:scorecol'}=$cols_output;
if ($chosen_output->{'base'} eq 'parts correct total') {
$excel_sheet->write($resource_name_row,$cols_output++,
'parts correct',
$format->{'bold'});
} elsif ($chosen_output->{'sequence_sum'}) {
if ($chosen_output->{'correct'}) {
# Only reporting the number correct, so do not call it score
$excel_sheet->write($resource_name_row,$cols_output++,
'sum',
$format->{'bold'});
} else {
$excel_sheet->write($resource_name_row,$cols_output++,
'score',
$format->{'bold'});
}
}
#
$total_formula_string.='+'.
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($first_data_row,$cols_output-1);
if ($chosen_output->{'sequence_max'}) {
$excel_sheet->write($resource_name_row,$cols_output,
'maximum',
$format->{'bold'});
$seq->{'Excel:maxcell'} =
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($first_data_row,$cols_output);
$seq->{'Excel:maxcol'}=$cols_output;
$maximum_formula_string.='+'.
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($first_data_row,$cols_output);
$cols_output++;
}
}
if ($chosen_output->{'grand_total'}) {
$excel_sheet->write($resource_name_row,$cols_output++,'Total',
$format->{'bold'});
}
if ($chosen_output->{'grand_maximum'}) {
$excel_sheet->write($resource_name_row,$cols_output++,'Max. Total',
$format->{'bold'});
}
$total_formula = $excel_sheet->store_formula($total_formula_string);
$maximum_formula = $excel_sheet->store_formula($maximum_formula_string);
##############################################
# Output a row for MAX, if appropriate
##############################################
if ($chosen_output->{'maximum_row'}) {
$cols_output = 0;
foreach my $field (&get_student_fields_to_show()) {
if ($field eq 'username' || $field eq 'fullname' ||
$field eq 'id') {
$excel_sheet->write($maximum_data_row,$cols_output++,'Maximum',
$format->{'bold'});
} else {
$excel_sheet->write($maximum_data_row,$cols_output++,'');
}
}
#
# Add the maximums for each sequence or assessment
my %total_cell_translation;
my %maximum_cell_translation;
foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
$cols_output=$seq->{'Excel:startcol'};
$total_cell_translation{$seq->{'Excel:scorecell'}} =
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($maximum_data_row,$seq->{'Excel:scorecol'});
$maximum_cell_translation{$seq->{'Excel:maxcell'}} =
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($maximum_data_row,$seq->{'Excel:maxcol'});
my $weight;
my $max = 0;
foreach my $resource (@{$seq->{'contents'}}) {
next if ($resource->{'type'} ne 'assessment');
foreach my $part (@{$resource->{'parts'}}) {
$weight = 1;
if ($chosen_output->{'scores'}) {
$weight = &Apache::lonnet::EXT
('resource.'.$part.'.weight',$resource->{'symb'},
undef,undef,undef);
if (!defined($weight) || ($weight eq '')) {
$weight=1;
}
}
if ($chosen_output->{'scores'} &&
$chosen_output->{'every_problem'}) {
$excel_sheet->write($maximum_data_row,$cols_output++,
$weight);
}
$max += $weight;
}
}
#
if ($chosen_output->{'sequence_sum'} &&
$chosen_output->{'every_problem'}) {
my %replaceCells;
$replaceCells{$seq->{'Excel:startcell'}} =
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($maximum_data_row,$seq->{'Excel:startcol'});
$replaceCells{$seq->{'Excel:endcell'}} =
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($maximum_data_row,$seq->{'Excel:endcol'});
$excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
$seq->{'Excel:sum'},undef,
%replaceCells);
} elsif ($chosen_output->{'sequence_sum'}) {
$excel_sheet->write($maximum_data_row,$cols_output++,$max);
}
if ($chosen_output->{'sequence_max'}) {
$excel_sheet->write($maximum_data_row,$cols_output++,$max);
}
#
}
if ($chosen_output->{'grand_total'}) {
$excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
$total_formula,undef,
%total_cell_translation);
}
if ($chosen_output->{'grand_maximum'}) {
$excel_sheet->repeat_formula($maximum_data_row,$cols_output++,
$maximum_formula,undef,
%total_cell_translation);
}
} # End of MAXIMUM row output if ($chosen_output->{'maximum_row'}) {
$rows_output = $first_data_row;
##############################################
# Output summary table, which actually is above the sequence name row.
##############################################
if ($chosen_output->{'summary_table'}) {
$cols_output = 0;
$excel_sheet->write($summary_header_row,$cols_output++,
'Summary Table',$format->{'bold'});
if ($chosen_output->{'maximum_row'}) {
$excel_sheet->write($summary_header_row,$cols_output++,
'Maximum',$format->{'bold'});
}
$excel_sheet->write($summary_header_row,$cols_output++,
'Average',$format->{'bold'});
$excel_sheet->write($summary_header_row,$cols_output++,
'Median',$format->{'bold'});
$excel_sheet->write($summary_header_row,$cols_output++,
'Std Dev',$format->{'bold'});
my $row = $summary_header_row+1;
foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
$cols_output = 0;
$excel_sheet->write($row,$cols_output++,
$seq->{'title'},
$format->{'bold'});
if ($chosen_output->{'maximum_row'}) {
$excel_sheet->write
($row,$cols_output++,
'='.
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($maximum_data_row,$seq->{'Excel:scorecol'})
);
}
my $range =
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($first_data_row,$seq->{'Excel:scorecol'}).
':'.
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($first_data_row+$num_students-1,$seq->{'Excel:scorecol'});
$excel_sheet->write($row,$cols_output++,
'=AVERAGE('.$range.')');
$excel_sheet->write($row,$cols_output++,
'=MEDIAN('.$range.')');
$excel_sheet->write($row,$cols_output++,
'=STDEV('.$range.')');
$row++;
}
}
##############################################
# Take care of non-excel initialization
##############################################
#
# Let the user know what we are doing
my $studentcount = scalar(@Apache::lonstatistics::Students);
if ($ENV{'form.SelectedStudent'}) {
$studentcount = '1';
}
if ($studentcount > 1) {
$r->print('<h1>'.&mt('Compiling Excel spreadsheet for [_1] students',
$studentcount)."</h1>\n");
} else {
$r->print('<h1>'.
&mt('Compiling Excel spreadsheet for 1 student').
"</h1>\n");
}
$r->rflush();
#
# Initialize progress window
%prog_state=&Apache::lonhtmlcommon::Create_PrgWin
($r,'Excel File Compilation Status',
'Excel File Compilation Progress', $studentcount);
#
&Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
'Processing first student');
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
my %total_cell_translation;
my %maximum_cell_translation;
foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
$cols_output = $seq->{'Excel:startcol'};
# Keep track of cells to translate in total cell
$total_cell_translation{$seq->{'Excel:scorecell'}} =
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($rows_output,$seq->{'Excel:scorecol'});
#
my ($performance,$performance_length,$score,$seq_max,$rawdata);
if ($chosen_output->{'tries'} || $chosen_output->{'correct'}){
($performance,$performance_length,$score,$seq_max,$rawdata) =
&StudentTriesOnSequence($student,\%StudentsData,
$seq,'no');
} else {
($performance,$performance_length,$score,$seq_max,$rawdata) =
&StudentPerformanceOnSequence($student,\%StudentsData,
$seq,'no');
}
if ($chosen_output->{'every_problem'}) {
if ($chosen_output->{'correct'}) {
# only indiciate if each item is correct or not
foreach my $value (@$rawdata) {
# nonzero means correct
$value = 1 if ($value > 0);
$excel_sheet->write($rows_output,$cols_output++,$value);
}
} else {
foreach my $value (@$rawdata) {
if ($score eq ' ' || !defined($value)) {
$cols_output++;
} else {
$excel_sheet->write($rows_output,$cols_output++,
$value);
}
}
}
}
if ($chosen_output->{'sequence_sum'} &&
$chosen_output->{'every_problem'}) {
# Write a formula for the sum of this sequence
my %replaceCells;
$replaceCells{$seq->{'Excel:startcell'}} =
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($rows_output,$seq->{'Excel:startcol'});
$replaceCells{$seq->{'Excel:endcell'}} =
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($rows_output,$seq->{'Excel:endcol'});
# The undef is for the format
if (scalar(keys(%replaceCells)) == 1) {
$excel_sheet->repeat_formula($rows_output,$cols_output++,
$seq->{'Excel:sum'},undef,
%replaceCells,%replaceCells);
} else {
$excel_sheet->repeat_formula($rows_output,$cols_output++,
$seq->{'Excel:sum'},undef,
%replaceCells);
}
} elsif ($chosen_output->{'sequence_sum'}) {
if ($score eq ' ') {
$cols_output++;
} else {
$excel_sheet->write($rows_output,$cols_output++,$score);
}
}
if ($chosen_output->{'sequence_max'}) {
$excel_sheet->write($rows_output,$cols_output++,$seq_max);
}
}
#
if ($chosen_output->{'grand_total'}) {
$excel_sheet->repeat_formula($rows_output,$cols_output++,
$total_formula,undef,
%total_cell_translation);
}
if ($chosen_output->{'grand_maximum'}) {
$excel_sheet->repeat_formula($rows_output,$cols_output++,
$maximum_formula,undef,
%total_cell_translation);
}
#
# 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
$r->print('<br />'.
'<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\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
undef($outputfile);
undef($filename);
undef($request_aborted);
undef(%prog_state);
#
# Deal with unimplemented requests
$request_aborted = undef;
if ($chosen_output->{'base'} =~ /final table/) {
$r->print(<<END);
<h2>Unable to Complete Request</h2>
<p>
The <b>Summary Table (Scores)</b> option is not available for non-HTML output.
</p>
END
$request_aborted = 1;
}
return if ($request_aborted);
#
# 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);
#
# 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 $sequence_row = '';
my $resource_row = undef;
foreach my $field (&get_student_fields_to_show()) {
$sequence_row .='"",';
$resource_row .= '"'.&Apache::loncommon::csv_translate($field).'",';
}
foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
$sequence_row .= '"'.
&Apache::loncommon::csv_translate($seq->{'title'}).'",';
my $count = 0;
if ($chosen_output->{'every_problem'}) {
foreach my $res (@{$seq->{'contents'}}) {
if ($res->{'type'} ne 'assessment' ||
! exists($res->{'parts'}) ||
ref($res->{'parts'}) ne 'ARRAY' ||
scalar(@{$res->{'parts'}}) < 1) {
next;
}
foreach my $part (@{$res->{'parts'}}) {
$resource_row .= '"'.
&Apache::loncommon::csv_translate($res->{'title'}.
', Part '.$part
).'",';
$count++;
}
}
}
$sequence_row.='"",'x$count;
if ($chosen_output->{'sequence_sum'}) {
if($chosen_output->{'correct'}) {
$resource_row .= '"sum",';
} else {
$resource_row .= '"score",';
}
}
if ($chosen_output->{'sequence_max'}) {
$sequence_row.= '"",';
$resource_row .= '"maximum possible",';
}
}
if ($chosen_output->{'grand_total'}) {
$sequence_row.= '"",';
$resource_row.= '"Total",';
}
if ($chosen_output->{'grand_maximum'}) {
$sequence_row.= '"",';
$resource_row.= '"Maximum",';
}
chomp($sequence_row);
chomp($resource_row);
print $outputfile $sequence_row."\n";
print $outputfile $resource_row."\n";
return;
}
sub csv_outputstudent {
my ($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
my $total = 0;
my $maximum = 0;
foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess()) {
my ($performance,$performance_length,$score,$seq_max,$rawdata);
if ($chosen_output->{'tries'}){
($performance,$performance_length,$score,$seq_max,$rawdata) =
&StudentTriesOnSequence($student,\%StudentsData,
$seq,'no');
} else {
($performance,$performance_length,$score,$seq_max,$rawdata) =
&StudentPerformanceOnSequence($student,\%StudentsData,
$seq,'no');
}
if ($chosen_output->{'every_problem'}) {
if ($chosen_output->{'correct'}) {
$score = 0;
# Deal with number of parts correct data
$Str .= '"'.join('","',( map { if ($_>0) {
$score += 1;
1;
} else {
0;
}
} @$rawdata)).'",';
} else {
$Str .= '"'.join('","',(@$rawdata)).'",';
}
}
if ($chosen_output->{'sequence_sum'}) {
$Str .= '"'.$score.'",';
}
if ($chosen_output->{'sequence_max'}) {
$Str .= '"'.$seq_max.'",';
}
$total+=$score;
$maximum += $seq_max;
}
if ($chosen_output->{'grand_total'}) {
$Str .= '"'.$total.'",';
}
if ($chosen_output->{'grand_maximum'}) {
$Str .= '"'.$maximum.'",';
}
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
$r->print('<br />'.
'<a href="'.$filename.'">'.&mt('Your csv file.').'</a>'."\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;
my $hasdata = 0; # flag - true if the student has any data on the sequence
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
#
my $awarded = 0;
if (exists($resource_data->{'resource.'.$partnum.'.awarded'})) {
$awarded = $resource_data->{'resource.'.$partnum.'.awarded'};
$awarded = 0 if (! $awarded);
}
#
my $status = '';
if (exists($resource_data->{'resource.'.$partnum.'.solved'})) {
$status = $resource_data->{'resource.'.$partnum.'.solved'};
}
#
my $tries = 0;
if(exists($resource_data->{'resource.'.$partnum.'.tries'})) {
$tries = $resource_data->{'resource.'.$partnum.'.tries'};
$hasdata =1;
}
#
if ($awarded > 0) {
# The student has gotten the problem correct to some degree
if ($status eq 'excused') {
$symbol = 'x';
$max--;
} elsif ($status eq 'correct_by_override') {
$symbol = '+';
$sum++;
} elsif ($tries > 0) {
if ($tries > 9) {
$symbol = '*';
} else {
$symbol = $tries;
}
$sum++;
} else {
$symbol = '+';
$sum++;
}
} else {
# The student has the problem incorrect or it is ungraded
if ($status eq 'excused') {
$symbol = 'x';
$max--;
} elsif ($status eq 'incorrect_by_override') {
$symbol = '-';
} elsif ($status eq 'ungraded_attempted') {
$symbol = '#';
} elsif ($status eq 'incorrect_attempted' ||
$tries > 0) {
$symbol = '.';
} else {
# Problem is wrong and has not been attempted.
$symbol=' ';
}
}
#
if (! defined($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');
}
$symbol = '<a href="/adm/grades'.
'?symb='.&Apache::lonnet::escape($resource->{'symb'}).
'&student='.$student->{'username'}.
'&userdom='.$student->{'domain'}.
'&command=submission">'.$symbol.'</a>';
}
$value .= $symbol;
}
$Str .= $value;
}
if ($seq->{'randompick'}) {
$max = $seq->{'randompick'};
}
if (! $hasdata && $sum == 0) {
$sum = ' ';
}
return ($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;
my $hasdata = 0; # flag, 0 if there were no submissions on the sequence
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 $awarded;
if (exists($resource_data->{'resource.'.$part.'.awarded'})) {
$awarded = $resource_data->{'resource.'.$part.'.awarded'};
$awarded = 0 if (! $awarded);
$hasdata = 1;
}
#
$partscore = $weight*$awarded;
if (! defined($awarded)) {
$partscore = undef;
}
$score += $partscore;
$symbol = $partscore;
if (abs($symbol - sprintf("%.0f",$symbol)) < 0.001) {
$symbol = sprintf("%.0f",$symbol);
}
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.
}
$hasdata = 1;
} else {
# Unsolved. Did they try?
if (exists($resource_data->{'resource.'.$part.'.tries'})){
$symbol = '.';
$hasdata = 1;
} else {
$symbol = ' ';
}
}
#
if (! defined($partscore)) {
$partscore = $symbol;
}
push (@ScoreData,$partscore);
#
if ( ($links eq 'yes' && $symbol ne ' ') || ($links eq 'all')) {
$symbol = '<a href="/adm/grades'.
'?symb='.&Apache::lonnet::escape($resource->{'symb'}).
'&student='.$student->{'username'}.
'&userdom='.$student->{'domain'}.
'&command=submission">'.$symbol.'</a>';
}
$Str .= $symbol;
}
}
if (! $hasdata && $score == 0) {
$score = ' ';
}
return ($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 = "<p><pre>".
" 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".
"</pre><p>";
return $Str;
}
#######################################################
#######################################################
=pod
=back
=cut
#######################################################
#######################################################
1;
__END__
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