File:
[LON-CAPA] /
loncom /
interface /
statistics /
lonstudentassessment.pm
Revision
1.112:
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select for diffs
Fri Feb 25 02:37:49 2005 UTC (19 years, 4 months ago) by
matthew
Branches:
MAIN
CVS tags:
HEAD
Reworking to use navmaps directly. It compiles. Most statistics pages
will not load. chart works for html output only, although the columns are
off and all sequences are selected regardless of what you say. In short,
it needs work. A lot of work. Guess I'll be busy tomorrow.
# The LearningOnline Network with CAPA
#
# $Id: lonstudentassessment.pm,v 1.112 2005/02/25 02:37:49 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 Time::HiRes;
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 $finish = \&html_finish;
&Apache::lonnet::logthis('got here! 1');
#
if ($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;
$finish = \&csv_finish;
}
#
&Apache::lonnet::logthis('got here! 2');
if($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);
&Apache::lonnet::logthis('got here! 3');
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">';
$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::map_select('Maps','multiple,all',5);
$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 .=
&mt('Status[_1]',
'<input type="text" name="stats_status" size="60" value="" />');
$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.',
non_html_notes => 'negative values indicate an incorrect problem',
},
{ 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;
my %width; # Holds sequence width information
my @sequences;
my $navmap; # Have to keep this around since weakref is a bit zealous
sub html_initialize {
my ($r) = @_;
#
$padding = ' 'x3;
$count = 0;
$nodata_count = 0;
undef(%prog_state);
undef(%width);
undef($navmap);
undef(@sequences);
&Apache::lonnet::logthis('called html_initialize');
#
$r->print("<h3>".$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 $total_count;
($navmap,@sequences) =
&Apache::lonstatistics::sequences_with_assessments();
if (! ref($navmap)) {
# Unable to get data, so bail out
$r->print("<h3>".
&mt('Unable to retrieve course information.').
'</h3>');
}
#
# Compute sequence widths
my $starttime = Time::HiRes::time;
foreach my $seq (@sequences) {
my $symb = $seq->symb;
my $title = $seq->compTitle;
$width{$symb}->{'width_sum'} = 0;
# Compute width of sum
if ($chosen_output->{'sequence_sum'}) {
if ($chosen_output->{'every_problem'}) {
# Use 1 digit for a space
$width{$symb}->{'width_sum'} += 1;
}
$total_count += $width{$symb}->{'num_assess_parts'};
# Use 3 digits for the sum
$width{$symb}->{'width_sum'} += 3;
}
# Compute width of maximum
if ($chosen_output->{'sequence_max'}) {
if ($width{$symb}->{'width_sum'}>0) {
# One digit for the '/'
$width{$symb}->{'width_sum'} +=1;
}
# Use 3 digits for the total
$width{$symb}->{'width_sum'}+=3;
}
#
if ($chosen_output->{'every_problem'}) {
# one problem per digit
$width{$symb}->{'width_parts'}=0;
$starttime = Time::HiRes::time;
my @resources =
$navmap->retrieveResources($seq,sub { shift->is_problem(); },
0,0,0);
$starttime = Time::HiRes::time;
foreach my $res (@resources) {
my @parts = $res->parts;
$width{$symb}->{'width_parts'} += scalar(@parts);
}
&Apache::lonnet::logthis('2elapsed:'.(Time::HiRes::time-$starttime)); $width{$symb}->{'width_problem'} +=
$width{$symb}->{'width_parts'};
} else {
$width{$symb}->{'width_problem'} = 0;
}
$width{$symb}->{'width_total'} = $width{$symb}->{'width_problem'} +
$width{$symb}->{'width_sum'};
if ($width{$symb}->{'width_total'} < length(&HTML::Entities::decode($title))) {
$width{$symb}->{'width_total'} = length(&HTML::Entities::decode($title));
}
#
# Output the sequence titles
$Str .= $title.(' 'x($width{$symb}->{'width_total'}-
length($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 $Str = '';
return if (! defined($navmap));
#
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->{$field};
# Deal with 'comments' - how I love special cases
if ($field eq 'comments') {
$title = '<a href="/adm/'.$student->{'domain'}.'/'.$student->{'username'}.'/'.'aboutme#coursecomment">'.&mt('Comments').'</a>';
}
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 $seq (@sequences) {
&Apache::lonnet::logthis('computing student data for '.$seq->compTitle);
my ($performance,$performance_length,$score,$seq_max,$rawdata);
if ($chosen_output->{'tries'}) {
($performance,$performance_length,$score,$seq_max,$rawdata) =
&student_tries_on_sequence($student,\%StudentsData,
$navmap,$seq,$show_links);
} else {
($performance,$performance_length,$score,$seq_max,$rawdata) =
&student_performance_on_sequence($student,\%StudentsData,
$navmap,$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;
}
$performance .= ' 'x($width{$seq->symb}->{'width_total'} -
$performance_length -
$width{$seq->symb}->{'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;
} else {
$score = sprintf("%.0f",$score);
}
$Str .= ' '.' 'x($total_sum_width-length($score)).$score.' / '.$max;
$Str .= " \n";
#
$r->print($Str);
#
$r->rflush();
return;
}
sub html_finish {
my ($r) = @_;
return if (! defined($navmap));
#
# 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());
}
}
$r->rflush();
undef($navmap);
return;
}
sub StudentAverageTotal {
my $Str = '<h3>'.&mt('Summary Tables').'</h3>'.$/;
$Str .= '<table border=2 cellspacing="1">'."\n";
$Str .= '<tr>'.
'<th>'.&mt('Title').'</th>'.
'<th>'.&mt('Average').'</th>'.
'<th>'.&mt('Maximum').'</th>'.
'</tr>'.$/;
foreach my $seq (@sequences) {
my $symb = $seq->symb;
my $ave;
my $num_students = $Statistics->{$symb}->{'num_students'};
if ($num_students > 0) {
$ave = int(100*
($Statistics->{$symb}->{'score'}/$num_students)
)/100;
} else {
$ave = 0;
}
my $max = $Statistics->{$symb}->{'max'};
$ave = sprintf("%.2f",$ave);
$Str .= '<tr><td>'.$seq->compTitle.'</td>'.
'<td align="right">'.$ave.' </td>'.
'<td align="right">'.$max.' '.'</td></tr>'."\n";
}
$Str .= "</table>\n";
return $Str;
}
sub SingleStudentTotal {
my $student = &Apache::lonstatistics::current_student();
my $Str = '<h3>'.&mt('Summary table for [_1] ([_2]@[_3])',
$student->{'fullname'},
$student->{'username'},$student->{'domain'}).'</h3>';
$Str .= $/;
$Str .= '<table border=2 cellspacing="1">'."\n";
$Str .=
'<tr>'.
'<th>'.&mt('Sequence or Folder').'</th>';
if ($chosen_output->{'base'} eq 'tries') {
$Str .= '<th>'.&mt('Parts Correct').'</th>';
} else {
$Str .= '<th>'.&mt('Score').'</th>';
}
$Str .= '<th>'.&mt('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'};
$Str .= '<tr><td>'.&HTML::Entities::encode($seq->compTitle).'</td>'.
'<td align="right">'.$value.'</td>'.
'<td align="right">'.$max.'</td></tr>'."\n";
$total += $value;
$total_max +=$max;
}
$Str .= '<tr><td><b>'.&mt('Total').'</b></td>'.
'<td align="right">'.$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;
}
my $too_many_cols_error_message =
'<h2>'.&mt('Unable to Complete Request').'</h2>'.$/.
'<p>'.&mt('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>'.$/.
'<p>'.&mt('You may consider reducing the number of <b>Sequences or Folders</b> you have selected.').'</p>'.$/.
'<p>'.&mt('LON-CAPA can produce <b>CSV</b> files of this data or Excel files of the <b>Scores Summary</b> data.').'</p>'.$/;
if ($chosen_output->{'base'} eq 'tries' && $total_columns > 255) {
$r->print($too_many_cols_error_message);
$request_aborted = 1;
}
if ($chosen_output->{'base'} eq 'scores' && $total_columns > 255) {
$r->print($too_many_cols_error_message);
$request_aborted = 1;
}
return if ($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++;
my $notes_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->{'b'});
#
$cols_output = 0;
$excel_sheet->write($notes_row,$cols_output++,
$chosen_output->{'non_html_notes'},
$format->{'i'});
##############################################
# 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'});
$count++;
}
} 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'} &&
$chosen_output->{'every_problem'}) {
my %replaceCells=
('^'.$seq->{'Excel:startcell'}.':'.
$seq->{'Excel:endcell'}.'$' =>
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($maximum_data_row,$seq->{'Excel:startcol'}).':'.
&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++,
$maximum_formula,undef,
%maximum_cell_translation);
}
} # End of MAXIMUM row output if ($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', $studentcount,
'inline',undef,'Statistics','stats_status');
#
&Apache::lonhtmlcommon::Update_PrgWin($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) {
my $value = $student->{$field};
if ($field eq 'comments') {
$value = &Apache::lonmsg::retrieve_instructor_comments
($student->{'username'},$student->{'domain'});
}
$excel_sheet->write($rows_output,$cols_output++,$value);
}
#
# 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'});
# and maximum cell
$maximum_cell_translation{$seq->{'Excel:maxcell'}} =
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell
($rows_output,$seq->{'Excel:maxcol'});
#
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'} &&
$chosen_output->{'every_problem'}) {
# Write a formula for the sum of this sequence
my %replaceCells=
('^'.$seq->{'Excel:startcell'}.':'.$seq->{'Excel:endcell'}.'$'
=>
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$seq->{'Excel:startcol'}).':'.
&Spreadsheet::WriteExcel::Utility::xl_rowcol_to_cell($rows_output,$seq->{'Excel:endcol'})
);
# The undef is for the format
$excel_sheet->repeat_formula($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,
%maximum_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,
'inline',undef,'Statistics','stats_status');
#
# 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";
foreach my $item ('shortdesc','non_html_notes') {
next if (! exists($chosen_output->{$item}));
print $outputfile
'"'.&Apache::loncommon::csv_translate($chosen_output->{$item}).'"'.
"\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) {
my $value = $student->{$field};
if ($field eq 'comments') {
$value = &Apache::lonmsg::retrieve_instructor_comments
($student->{'username'},$student->{'domain'});
}
$Str .= '"'.&Apache::loncommon::csv_translate($value).'",';
}
#
# 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 $links if defined we will output links to each resource.
=back
=cut
#######################################################
#######################################################
sub student_tries_on_sequence {
my ($student,$studentdata,$navmap,$seq,$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
my @resources =
$navmap->retrieveResources($seq,sub { shift->is_problem(); },0,0,0);
foreach my $resource (@resources) {
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)) {
$tries = 0;
}
if ($status =~ /^(incorrect|ungraded)/) {
# Bug 3390: show '-' for tries on incorrect problems
# (csv & excel only)
push(@TriesData,-$tries);
} else {
push (@TriesData,$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 $links if defined we will output links to each resource.
=back
=cut
#######################################################
#######################################################
sub student_performance_on_sequence {
my ($student,$studentdata,$navmap,$seq,$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
my @resources =
$navmap->retrieveResources($seq,sub { shift->is_problem(); },0,0,0);
foreach my $resource (@resources) {
my $symb = $resource->symb;
my $resource_data = $studentdata->{$symb};
foreach my $part (@{$resource->parts()}) {
$partscore = undef;
my $weight = &Apache::lonnet::EXT('resource.'.$part.'.weight',
$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.
}
$hasdata = 1;
} elsif (!exists($resource_data->{'resource.'.$part.'.awarded'})){
# Unsolved. Did they try?
if (exists($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')) {
$symbol = '<a href="/adm/grades'.
'?symb='.&Apache::lonnet::escape($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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