[BACK]Return to lonproblemanalysis.pm CVS log [TXT] [DIR] Up to [LON-CAPA] / loncom / interface / statistics
File:  [LON-CAPA] / loncom / interface / statistics / lonproblemanalysis.pm
Revision 1.4: download - view: text, annotated - select for diffs
Mon Aug 5 20:53:38 2002 UTC (21 years, 11 months ago) by stredwic
Branches: MAIN
CVS tags: HEAD
Added in some flushes and changed where some of the modules print.  Also,
fixed download all so that if you stop it, and then select something
else it won't continue to download.

# The LearningOnline Network with CAPA
# (Publication Handler
#
# $Id: lonproblemanalysis.pm,v 1.4 2002/08/05 20:53:38 stredwic 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
# YEAR=2001
# 5/5,7/9,7/25/1,8/11,9/13,9/26,10/5,10/9,10/22,10/26 Behrouz Minaei
# 11/1,11/4,11/16,12/14,12/16,12/18,12/20,12/31 Behrouz Minaei
# YEAR=2002
# 1/22,2/1,2/6,2/25,3/2,3/6,3/17,3/21,3/22,3/26,4/7,5/6 Behrouz Minaei
# 5/12,5/14,5/15,5/19,5/26,7/16  Behrouz Minaei
#
###

package Apache::lonproblemanalysis; 

use strict;
use Apache::lonnet();
use GDBM_File;

#my $jr;

sub BuildProblemAnalysisPage {
    my ($cacheDB, $r)=@_;

    my %cache;
    unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
        $r->print('<html><body>Unable to tie database.</body></html>');
        return;
    }

    $r->print(&IntervalOptions($cache{'Interval'}));
    $r->rflush();
    $r->print(&OptionResponseTable($cache{'OptionResponses'}, \%cache));

    untie(%cache);

    return;
}

sub BuildAnalyzePage {
    my ($cacheDB, $students, $courseID,$r)=@_;

#    $jr = $r;
    my $c = $r->connection;

    my $Str = '</form>';
    my %cache;
    &Create_PrgWin($r);
    my $count=0;
    foreach (@$students) {
        &Update_PrgWin(scalar(@$students),$count,$_,$r);
        if($c->aborted) {
            return $Str;
        }
        my $downloadTime='';
        if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
            $downloadTime = $cache{$_.':lastDownloadTime'};
            untie(%cache);
        }
        if($downloadTime eq 'Not downloaded') {
            my $courseData = 
                &Apache::loncoursedata::DownloadCourseInformation($_, 
                                                                  $courseID);
            if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT(),0640)) {
                &Apache::loncoursedata::ProcessStudentData(\%cache, 
                                                           $courseData, $_);
                untie(%cache);
            } else {
                next;
            }
        }
        $count++;
    }
    &Close_PrgWin($r);

    unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) {
        $Str .= '<html><body>Unable to tie database.</body></html>';
        return $Str;
    }

    my ($problemId, $part, $responseId)=split(':',$cache{'AnalyzeInfo'});
    my $uri      = $cache{$problemId.':source'};
    my $problem  = $cache{$problemId.':problem'}; 
    my $title    = $cache{$problemId.':title'};
    my $interval = $cache{'Interval'};

    my %ConceptData;
    $ConceptData{"Interval"} = $interval;

    #Initialize the option response true answers
    my ($analyzeData) = &InitAnalysis($uri, $part, $responseId, $problem, 
                                      $students->[0], $courseID);
    if(defined($analyzeData->{'error'})) {
        $Str .= 'Incorrect part requested.<br>';
        return $Str;
    }

    if($c->aborted()) {  untie(%cache); return $Str; }

    #compute the intervals
    &Interval($part, $problem, $interval, $analyzeData->{'concepts'}, 
              \%ConceptData);

    $title =~ s/\ /"_"/eg;
    $Str .= '<br><b>'.$uri.'</b>';

    if($c->aborted()) {  untie(%cache); return $Str; }
         
    #Java script Progress window
#    &Create_PrgWin();
#    &Update_PrgWin("Starting-to-analyze-problem");
    for(my $index=0; $index<(scalar @$students); $index++) {
        if($c->aborted()) {  untie(%cache); return $Str; }
#	&Update_PrgWin($index);
#	&OpStatus($problem, $students->[$index], $courseID, \%ConceptData,
#                  $analyzeData->{'foil_to_concept'}, $analyzeData, \%cache);
	&OpStatus($problem, $students->[$index], \%ConceptData, 
                  $analyzeData->{'foil_to_concept'}, $analyzeData, \%cache);
    }
#    &Close_PrgWin();

    $Str .= '<br>';
    for (my $k=0; $k<$interval; $k++ ) {
        if($c->aborted()) {  untie(%cache); return $Str; }
	$Str .= &DrawGraph($k, $title, $analyzeData->{'concepts'}, 
                           \%ConceptData);
    }
    for (my $k=0; $k<$interval; $k++ ) {
        if($c->aborted()) {  untie(%cache); return $Str; }
	$Str .= &DrawTable($k, $analyzeData->{'concepts'}, \%ConceptData);
    }
    my $Answ=&Apache::lonnet::ssi($uri);
    $Str .= '<br><b>Here you can see the Problem:</b><br>'.$Answ;

    untie(%cache);

    return $Str.'<form>';
}

#---- Problem Analysis Web Page ----------------------------------------------

sub IntervalOptions {
    my ($selectedInterval)=@_;

    my $interval = 1;
    for(my $n=1; $n<=7; $n++) {
        if($selectedInterval == $n) {
            $interval = $n;
        }
    }

    my $Ptr = '<br><b>Select number of intervals</b>'."\n".
       	      '<select name="Interval">'."\n";
    for(my $n=1; $n<=7;$ n++) {
	$Ptr .= '<option';
        if($interval == $n) {
            $Ptr .= ' selected';
        }
	$Ptr .= '>'.$n."</option>"."\n";
    }
    $Ptr .= '</select>'."\n";

    return $Ptr;
}

sub OptionResponseTable {
    my ($optionResponses,$cache)=@_;
    my $Str = '';
    $Str .= '<br><b> Option Response Problems in this course:</b>'."\n";
    $Str .= '<br><br>'."\n";
    $Str .= "<table border=2><tr><th> \# </th><th> Problem Title </th>";
    $Str .= '<th> Resource </th><th> Analysis  </th></tr>'."\n";

    my $number=1;
    my @optionResponses=split(':::', $optionResponses);
    my %partCount;
    foreach (@optionResponses) {
        my ($problemId, $part, undef)=split(':',$_);
        $partCount{$problemId.':'.$part}++;
    }

    foreach (@optionResponses) {
        my ($problemId, $part, $response)=split(':',$_);
        my $uri = $cache->{$problemId.':source'};
        my $title = $cache->{$problemId.':title'};

        my $Temp = '<a href="'.$uri.'" target="_blank">'.$title.'</a>';
        $Str .= '<tr>';
        $Str .= '<td> '.$number.' </td>';
        $Str .= '<td bgcolor="#DDFFDD">'.$Temp.'</td>';
        $Str .= '<td bgcolor="#EEFFCC">'.$uri.'</td>';
        if($partCount{$problemId.':'.$part} < 2) {
            $Str .= '<td><input type="submit" name="Analyze:::';
            $Str .= $problemId.':'.$part.'" value="';
            $Str .= 'Part '.$part;
            $Str .= '" /></td></tr>'."\n";
        } else {
            $Str .= '<td><input type="submit" name="Analyze:::'.$_.'" value="';
            $Str .= 'Part '.$part.' Response '.$response;
            $Str .= '" /></td></tr>'."\n";
        }
        $number++;
    }
    $Str .= '</table>'."\n";

    return $Str;
}

# Create progress
sub Create_PrgWin {
    my ($r)=@_;
    $r->print(<<ENDPOP);
    <script>
    popwin=open('','popwin','width=400,height=100');
    popwin.document.writeln('<html><body bgcolor="#88DDFF">'+
      '<title>LON-CAPA Statistics</title>'+
      '<h4>Computation Progress</h4>'+
      '<form name=popremain>'+
      '<input type=text size=35 name=remaining value=Starting></form>'+
      '</body></html>');
    popwin.document.close();
    </script>
ENDPOP

    $r->rflush();
}

# update progress
sub Update_PrgWin {
    my ($totalStudents,$index,$name,$r)=@_;
    $r->print('<script>popwin.document.popremain.remaining.value="'.
              'Computing '.$index.'/'.$totalStudents.': '.
              $name.'";</script>');
    $r->rflush();
}

# close Progress Line
sub Close_PrgWin {
    my ($r)=@_;
    $r->print('<script>popwin.close()</script>');
    $r->rflush(); 
}
 
#---- END Problem Analysis Web Page ------------------------------------------

#---- Analyze Web Page -------------------------------------------------------

#restore the student submissions and finding the result
sub OpStatus {
    my ($problem, $student, $ConceptData, $foil_to_concept, 
        $analyzeData, $cache)=@_;

    my $ids = $analyzeData->{'parts'};
    my @True = ();
    my @False = ();
    my $flag=0;
    my $latestVersion = $cache->{$student.':version:'.$problem};
    if(!$latestVersion) {
        return;
    }

    my $tries=0;
    for(my $version=1; $version<=$latestVersion; $version++) {
        my $time=$cache->{$student.':'.$version.':'.$problem.':timestamp'};

        foreach my $id (@$ids) {
            my ($currentPart, undef) = split(/\./, $id);
            #check if this is a repeat submission, if so skip it
            next if($cache->{$student.':'.$version.':'.$problem.
                             ':resource.'.$currentPart.'.previous'});
            #if no solved this wasn't a real submission, ignore it
            if(!defined($cache->{"$student:$version:$problem".
                                 ":resource.$currentPart.solved"})) {
                &Apache::lonxml::debug("skipping ");
                next;
            }
            my $Resp = $cache->{$student.':'.$version.':'.$problem.
                                ':resource.'.$id.'.submission'};
            my %submission=&Apache::lonnet::str2hash($Resp);
            foreach (keys(%submission)) {
                if($submission{$_}) {
                    my $answer = $analyzeData->{$id.'.foil.value.'.$_};
                    if($submission{$_} eq $answer) {
                        &Decide("true", $foil_to_concept->{$_}, 
                                $time, $ConceptData);
                    } else {
                        &Decide("false", $foil_to_concept->{$_}, 
                                $time, $ConceptData);
                    }
                }
            }
        }
    }

    return;
}

sub DrawGraph {
    my ($k,$Src,$Concepts,$ConceptData)=@_;
    my $Max=0;
    my @data1;
    my @data2;

    # Adjust Data and find the Max 
    for (my $n=0; $n<(scalar @$Concepts); $n++ ) {
	my $tmp=$Concepts->[$n];
	$data1[$n]=$ConceptData->{$tmp.'.'.$k.'.true'};
	$data2[$n]=$ConceptData->{$tmp.'.'.$k.'.false'};
	my $Sum=$data1[$n]+$data2[$n];
	if($Max < $Sum) {
            $Max=$Sum;
        }
    }
    for (my $n=0; $n<(scalar @$Concepts); $n++ ) {
	if ($data1[$n]+$data2[$n]<$Max) {
	    $data2[$n]+=$Max-($data1[$n]+$data2[$n]);
	}
    }
    my $P_No = (scalar @data1);

    if($Max > 1) { 
	$Max += (10 - $Max % 10);
	$Max = int($Max);
    } else {
        $Max = 1;
    }

    my $Titr=($ConceptData->{'Interval'}>1) ? $Src.'_interval_'.($k+1) : $Src;
#    $GData=$Titr.'&Concepts'.'&'.'Answers'.'&'.$Max.'&'.$P_No.'&'.$data1.'&'.$data2;
    my $GData = '';
    $GData  = $Titr.'&Concepts&Answers&'.$Max.'&'.$P_No.'&';
    $GData .= (join(',',@data1)).'&'.(join(',',@data2));

    return '<IMG src="/cgi-bin/graph.gif?'.$GData.'" border=1/>';
}

sub DrawTable {
    my ($k,$Concepts,$ConceptData)=@_;
    my $Max=0;
    my @data1;
    my @data2;
    my $Correct=0;
    my $Wrong=0;
    for(my $n=0; $n<(scalar @$Concepts); $n++ ) {
	my $tmp=$Concepts->[$n];
	$data1[$n]=$ConceptData->{$tmp.'.'.$k.'.true'};
	$Correct+=$data1[$n];
	$data2[$n]=$ConceptData->{$tmp.'.'.$k.'.false'};
	$Wrong+=$data2[$n];
	my $Sum=$data1[$n]+$data2[$n];
	if($Max < $Sum) {
            $Max=$Sum;
        }
    }
    for(my $n=0; $n<(scalar @$Concepts); $n++ ) {
	if ($data1[$n]+$data2[$n]<$Max) {
	    $data2[$n]+=$Max-($data1[$n]+$data2[$n]);
	}
    }
    my $P_No = (scalar @data1);
    my $Str = '';
#    $Str .= '<br><b>From: ['.localtime($ConceptData->{'Int.'.($k-1)});
#    $Str .= '] To: ['.localtime($ConceptData->{"Int.$k"}).']</b>'; 
    $Str .= "\n".'<table border=2>'.
            "\n".'<tr>'.
            "\n".'<th> # </th>'.
            "\n".'<th> Concept </th>'.
            "\n".'<th> Correct </th>'.
            "\n".'<th> Wrong </th>'.
            "\n".'</tr>';

    for(my $n=0; $n<(scalar @$Concepts); $n++ ) {
	$Str .= '<tr>'."\n";
        $Str .= '<td>'.($n+1).'</td>'."\n";
        my ($currentConcept) = split('::',$Concepts->[$n]);
        $Str .= '<td bgcolor="EEFFCC">'.$currentConcept;
        $Str .= '</td>'."\n";
        $Str .= '<td bgcolor="DDFFDD">'.$data1[$n].'</td>'."\n";
        $Str .= '<td bgcolor="FFDDDD">'.$data2[$n].'</td>'."\n";
        $Str .= '</tr>'."\n";
    }
    $Str .= '<td></td><td><b>From:['.localtime($ConceptData->{'Int.'.$k});
    $Str .= '] To: ['.localtime($ConceptData->{'Int.'.($k+1)}-1);
    $Str .= ']</b></td><td>'.$Correct.'</td><td>'.$Wrong.'</td>';
    $Str .= '</table>'."\n";

    return $Str;
#$Apache::lonxml::debug=1;
#&Apache::lonhomework::showhash(%ConceptData);
#$Apache::lonxml::debug=0;
}

#---- END Analyze Web Page ----------------------------------------------

sub Decide {
    #deciding the true or false answer belongs to each interval
    my ($type,$concept,$time,$ConceptData)=@_; 
    my $k=0;
    while($time > $ConceptData->{'Int.'.($k+1)} && 
           $k < $ConceptData->{'Interval'}) {
        $k++;
    }
    $ConceptData->{$concept.'.'.$k.'.'.$type}++;

    return;
}

sub InitAnalysis {
    my ($uri,$part,$responseId,$problem,$student,$courseID)=@_;
    my ($name,$domain)=split(/\:/,$student);

    my %analyzeData;
    # Render the student's view of the problem.  $Answ is the problem 
    # Stringafied
    my $Answ=&Apache::lonnet::ssi($uri,('grade_target'   => 'analyze',
                                        'grade_username' => $name,
                                        'grade_domain'   => $domain,
                                        'grade_courseid' => $courseID,
                                        'grade_symb'     => $problem));

    my %Answer=();
    %Answer=&Apache::lonnet::str2hash($Answ);

    my $found = 0;
    my @parts=();
    if(defined($responseId)) {
        foreach (@{$Answer{'parts'}}) {
            if($_ eq $part.'.'.$responseId) {
                push(@parts, $_);
                $found = 1;
                last;
            }
        }
    } else {
        foreach (@{$Answer{'parts'}}) {
            if($_ =~ /$part/) {
                push(@parts, $_);
                $found = 1;
                last;
            }
        }
    }

    if($found == 0) {
        $analyzeData{'error'} = 'No parts matching selected values';
        return \%analyzeData;
    }

    my @Concepts=();
    my %foil_to_concept;
    foreach my $currentPart (@parts) {
        if(defined($Answer{$currentPart.'.concepts'})) {
            foreach my $concept (@{$Answer{$currentPart.'.concepts'}}) {
                push(@Concepts, $concept);
                foreach my $foil (@{$Answer{$currentPart.'.concept.'.
                                            $concept}}) {
                    $analyzeData{$currentPart.'.foil.value.'.$foil} =
                        $Answer{$currentPart.'.foil.value.'.$foil};
                    $foil_to_concept{$foil} = $concept;
                }
            }
        } else {
            foreach (keys(%Answer)) {
                if(/$currentPart.foil\.value\.(.*)$/) {
                    push(@Concepts, $1);
                    $foil_to_concept{$1} = $1;
                    $analyzeData{$currentPart.'.foil.value.'.$1} =
                        $Answer{$currentPart.'.foil.value.'.$1};
                }
            }
        }
    }

    $analyzeData{'parts'} = \@parts;
    $analyzeData{'concepts'} = \@Concepts;
    $analyzeData{'foil_to_concept'} = \%foil_to_concept;

    return \%analyzeData;
}

sub Interval {
    my ($part,$symb,$interval,$Concepts,$ConceptData)=@_;
    my $Int=$interval;
    my $due = &Apache::lonnet::EXT('resource.'.$part.'.duedate',$symb);
    my $opn = &Apache::lonnet::EXT('resource.'.$part.'.opendate',$symb);
    my $add=int(($due-$opn)/$Int);
    $ConceptData->{'Int.0'}=$opn;
    for(my $i=1; $i<$Int; $i++) {
	$ConceptData->{'Int.'.$i}=$opn+$i*$add;
    }
    $ConceptData->{'Int.'.$Int}=$due;     
    for(my $i=0; $i<$Int; $i++) {
	for(my $n=0; $n<(scalar @$Concepts); $n++ ) {
	    my $tmp=$Concepts->[$n];
	    $ConceptData->{$tmp.'.'.$i.'.true'}=0;
	    $ConceptData->{$tmp.'.'.$i.'.false'}=0;
	}
    }
}
1;
__END__
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