# The LearningOnline Network with CAPA
#
# $Id: lonsurveyreports.pm,v 1.1 2004/06/15 14:22:45 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/
#
package Apache::lonsurveyreports;
use strict;
use Apache::lonnet();
use Apache::loncommon();
use Apache::lonhtmlcommon();
use Apache::loncoursedata();
use Apache::lonstatistics;
use Apache::lonlocal;
use Apache::lonstathelpers;
use HTML::Entities();
use Time::Local();
my @SubmitButtons = ({ name => 'PrevProblem',
text => 'Previous Survey' },
{ name => 'NextProblem',
text => 'Next Survey' },
{ name => 'break'},
{ name => 'SelectAnother',
text => 'Choose a different Survey Problem' },
{ name => 'Generate',
text => 'Generate Report'},
);
sub BuildSurveyReportsPage {
my ($r,$c)=@_;
#
my %Saveable_Parameters = ('Status' => 'scalar',
'Section' => 'array',
'NumPlots' => 'scalar',
);
&Apache::loncommon::store_course_settings('survey_reports',
\%Saveable_Parameters);
&Apache::loncommon::restore_course_settings('survey_resports',
\%Saveable_Parameters);
#
&Apache::lonstatistics::PrepareClasslist();
#
$r->print(&CreateInterface());
#
my @Students = @Apache::lonstatistics::Students;
#
if (@Students < 1) {
$r->print('
There are no students in the sections selected
');
}
#
my @CacheButtonHTML =
&Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status');
$r->rflush();
#
if (exists($ENV{'form.problemchoice'}) &&
! exists($ENV{'form.SelectAnother'})) {
foreach my $button (@SubmitButtons) {
if ($button->{'name'} eq 'break') {
$r->print(" \n");
} else {
$r->print('{'text'}).'" />');
$r->print(' 'x5);
}
}
foreach my $html (@CacheButtonHTML) {
$r->print($html.(' 'x5));
}
#
$r->print('');
$r->rflush();
#
# Determine which problem we are to analyze
my $current_problem = &Apache::lonstathelpers::get_target_from_id
($ENV{'form.problemchoice'});
#
my ($prev,$curr,$next) =
&Apache::lonstathelpers::get_prev_curr_next($current_problem,
'.',
'part_survey',
);
if (exists($ENV{'form.PrevProblem'}) && defined($prev)) {
$current_problem = $prev;
} elsif (exists($ENV{'form.NextProblem'}) && defined($next)) {
$current_problem = $next;
} else {
$current_problem = $curr;
}
#
# Store the current problem choice and send it out in the form
$ENV{'form.problemchoice'} =
&Apache::lonstathelpers::make_target_id($current_problem);
$r->print('');
#
if (! defined($current_problem->{'resource'})) {
$r->print('resource is undefined');
} else {
my $resource = $current_problem->{'resource'};
$r->print('
');
$r->print(&SurveyProblemSelector());
}
}
##########################################################
##########################################################
##
## SurveyProblemSelector
##
##########################################################
##########################################################
sub SurveyProblemSelector {
my $Str = '';
my @SurveyProblems;
foreach my $seq (&Apache::lonstatistics::Sequences_with_Assess('all')) {
next if ($seq->{'num_assess'}<1);
foreach my $res (@{$seq->{'contents'}}) {
next if ($res->{'type'} ne 'assessment');
foreach my $part (@{$res->{'parts'}}) {
if ($res->{'partdata'}->{$part}->{'Survey'}) {
push(@SurveyProblems,{res=>$res,seq=>$seq,part=>$part});
last;
}
}
}
}
if (! scalar(@SurveyProblems)) {
$Str = '
'.
&mt('There are no survey problems in this course').
'
'.$/;
return $Str;
}
$Str .= '
'.$/;
$Str .= '
'.'
'.
'
'.&mt('Sequence').'
'.
'
'.&mt('Problem').'
'.
'
'.$/;
foreach my $problem (@SurveyProblems) {
my $value = &Apache::lonstathelpers::make_target_id
({symb=>$problem->{'res'}->{'symb'},
part=>$problem->{'part'},
respid=>undef,
resptype=>undef});
my $checked = '';
if ($ENV{'form.problemchoice'} eq $value) {
$checked = 'checked ';
}
$Str .= '
'.'
'.
''.'
'.
'
'.$problem->{'seq'}->{'title'}.'
'.
'
'.$problem->{'res'}->{'title'}.'
'.
'
'.$/;
}
$Str .= '
';
return $Str;
}
#########################################################
#########################################################
##
## Compile Student Answers
##
#########################################################
#########################################################
sub Compile_Student_Answers {
my ($problem,$ProblemData,$Students) = @_;
my $resource = $problem->{'resource'};
foreach my $student (@$Students) {
foreach my $partid (@{$resource->{'parts'}}) {
my $partdata = $resource->{'partdata'}->{$partid};
for (my $i=0;$i<=@{$partdata->{'ResponseIds'}};$i++) {
my $respid = $partdata->{'ResponseIds'}->[$i];
my $resptype = $partdata->{'ResponseTypes'}->[$i];
my $results =
&Apache::loncoursedata::get_response_data_by_student
($student,$resource->{'symb'},$respid);
next if (! defined($results) || ref($results) ne 'ARRAY' ||
ref($results->[0]) ne 'ARRAY');
my $student_response =
$results->[0]->[&Apache::loncoursedata::RDs_submission()];
$problem->{'responsedata'}->{$partid}->{$respid}->{'_count'}++;
my $data = $problem->{'responsedata'}->{$partid}->{$respid};
if ($resptype =~ /^(radiobutton|optionresponse)$/) {
# Restricted response type can be categorized.
#
# Assume responses were not randomized and the order
# represents their value. This is probably a dumb thing
# to do...
#
my ($foil,$value) = split('=',$student_response);
$value += 1; # explicitly increment it...
$data->{'foil_responses'}->{$foil}++;
$data->{'foil_values'}->{$value}++;
if (! exists($data->{'map'}->{$value})) {
$data->{'map'}->{$value} = $foil;
}
} else {
# Variable stuff (essays, raw numbers, strings) go here
push(@{$data->{'responses'}},$student_response);
}
}
}
}
return;
}
#########################################################
#########################################################
##
## make_HTML_report
##
#########################################################
#########################################################
sub make_HTML_report {
my ($r,$problem,$ProblemData,$Students) = @_;
&Compile_Student_Answers($problem,$ProblemData,$Students);
# &output_hash('',$ProblemData);
my $resource = $problem->{'resource'};
foreach my $partid (@{$resource->{'parts'}}) {
my $partdata = $resource->{'partdata'}->{$partid};
for (my $i=0;$i<=@{$partdata->{'ResponseIds'}};$i++) {
my $Str = '
'.$/;
my $respid = $partdata->{'ResponseIds'}->[$i];
my $resptype = $partdata->{'ResponseTypes'}->[$i];
my $data = $problem->{'responsedata'}->{$partid}->{$respid};
next if (! defined($data) || ref($data) ne 'HASH');
# Debugging code
# $Str .= '
'.$/;
}
} elsif (exists($data->{'_count'}) &&
exists($data->{'foil_values'}) &&
exists($data->{'map'})) {
# This is an option or radiobutton survey response
my $total = $data->{'_count'};
my $sum = 0;
my $tmp;
foreach my $value (sort(keys(%{$data->{'foil_values'}}))) {
my $count = $data->{'foil_values'}->{$value};
my $foilid = $data->{'map'}->{$value};
my $foiltext = $ProblemData->{$partid.'.'.$respid}->{'_Foils'}->{$foilid}->{'text'};
my $foilname = $ProblemData->{$partid.'.'.$respid}->{'_Foils'}->{$foilid}->{'name'};
$sum = $value * $data->{'foil_values'}->{$value};
$tmp .= '
'.
'
'.$foilname.'
'.
'
'.$foiltext.'
'.
'
'.$count.'
'.
'
'.
sprintf("%.2f",$count/$total*100).'%
'.
'
'.$/;
}
$Str .= '
'.
'
'.&mt('mean').'
'.
'
'.sprintf("%.2f",$sum/$total).'
'.
'
'.
'
'.
'
'.$/.
'
'.
'
'.&mt('Foil Name').'
'.
'
'.&mt('Text').'
'.
'
'.&mt('Freq').'
'.
'
'.&mt('Percent').'
'.
'
'.$/.
$tmp;
}
$Str.= '
';
$r->print($Str);
$r->rflush();
}
}
return;
}
sub randomize_array {
# Fisher Yates shuffle, lifted from p 121 of "The Perl Cookbook"
my ($array) = @_;
for (my $i=scalar(@$array);--$i;) {
my $j = int(rand($i+1));
next if ($i == $j);
@$array[$i,$j]=@$array[$j,$i];
}
}
#########################################################
#########################################################
##
## Generic Interface Routines
##
#########################################################
#########################################################
sub CreateInterface {
##
## Environment variable initialization
my $Str = '';
$Str .= &Apache::lonhtmlcommon::breadcrumbs
(undef,'Student Submission Reports');
$Str .= '