--- loncom/interface/lonstatistics.pm 2002/07/17 12:53:00 1.27
+++ loncom/interface/lonstatistics.pm 2005/02/25 02:37:49 1.115
@@ -1,7 +1,6 @@
# The LearningOnline Network with CAPA
-# (Publication Handler
#
-# $Id: lonstatistics.pm,v 1.27 2002/07/17 12:53:00 stredwic Exp $
+# $Id: lonstatistics.pm,v 1.115 2005/02/25 02:37:49 matthew Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -26,1872 +25,1022 @@
# 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 Behrouz Minaei
#
###
-package Apache::lonstatistics;
+=pod
-use strict;
-use Apache::Constants qw(:common :http);
-use Apache::lonnet();
-use Apache::lonhomework;
-use Apache::loncommon;
-use Apache::loncoursedata;
-use HTML::TokeParser;
-use GDBM_File;
+=head1 NAME
-# -------------------------------------------------------------- Module Globals
-my %hash;
-my %CachData;
-my %GraphDat;
-my %mapsort;
-my $Pos;
-my $r;
-my $GData;
-my %color;
-my %foil_to_concept;
-my @Concepts;
-my %ConceptData;
-my %Answer = ();
-
-sub Activity {
- my $file="/home/minaeibi/activity.log";
- my $userid='adamsde1';
- $r->print("<br>Using $file");
- $r->rflush();
- open(FILEID, "<$file");
- my $line;
- my @allaccess;
- my $Count=0;
- while ($line=<FILEID>) {
- my ($time,$machine,$what)=split(':',$line);
- $what=&Apache::lonnet::unescape($what);
- my @accesses=split('&',$what);
- foreach my $access (@accesses) {
- my ($date,$resource,$who,$domain,$post,@posts)=split(':',$access);
- if ($who ne $userid) { next; }
- if (!$resource) { next; }
- my $res=&Apache::lonnet::unescape($resource);
- if (($res =~ /\.(problem|htm|html)/)) {
- $Count++;
- $r->print("<br>$Count) ".localtime($date).": $who --> $res");
-# if ($post) {
-# $Count++;
-# $r->print("<br><b>$Count) Sent data ".join(':',
-# &Apache::lonnet::unescape(@posts)).'</b>');
-# }
- $r->rflush();
- }
- ## push (@allaccess,unescape($access));
- #print $machine;
- }
- }
-# @allaccess=sort(@allaccess);
-# $Count=0;
-# foreach my $access (@allaccess) {
-# my ($date,$resource,$who,$domain,$post,@posts)=split(':',$access);
-# $Count++;
-# $r->print("<br>$Count) $date: $who --> $resource");
-# $r->rflush();
-# if ($post) {
-# $r->print("<br><b>Sent data ".join(':',unescape(@posts)).'</b>');
-# }
-# }
-}
+lonstatistics
-#---- Analyze Web Page ---------------------------------------------------
+=head1 SYNOPSIS
-sub InitAnalysis {
- my ($uri,$part,$problem,$student,$courseID)=@_;
- my ($username,$userdomain)=split(/\:/,$student);
-
- # Render the student's view of the problem. $Answ is the problem
- # Stringafied
- my $Answ=&Apache::lonnet::ssi($uri,('grade_target' => 'analyze',
- 'grade_username' => $username,
- 'grade_domain' => $userdomain,
- 'grade_courseid' => $courseID,
- 'grade_symb' => $problem));
-# my $Answ=&Apache::lonnet::ssi($uri,('grade_target' => 'analyze'));
-
-# (undef,$Answ)=split(/_HASH_REF__/,$Answ,2);
- %Answer=();
- %Answer=&Apache::lonnet::str2hash($Answ);
-
-# foreach (sort(keys(%Answer))) {
-# $r->print($_.' '.$Answer{$_}.'<br>');
-# }
-
- my $parts='';
- foreach my $elm (@{$Answer{"parts"}}) {
- $parts.="$elm,";
- }
- chop($parts);
- my $conc='';
- foreach my $elm (@{$Answer{"$parts.concepts"}}) {
- $conc.="$elm@";
- }
- chop($conc);
-
- @Concepts=split(/\@/,$conc);
- foreach my $concept (@{$Answer{"$parts.concepts"}}) {
- foreach my $foil (@{$Answer{"$parts.concept.$concept"}}) {
- $foil_to_concept{$foil} = $concept;
- #$ConceptData{$foil} = $Answer{"$parts.foil.value.$foil"};
- }
- }
+Main handler for statistics and chart.
- return;
-}
-
-sub Interval {
- my ($part,$symb)=@_;
- my $interval=$ConceptData{"Interval"};
- my $due = &Apache::lonnet::EXT('resource.'.$part.'.duedate',$symb)+1;
- my $open = &Apache::lonnet::EXT('resource.'.$part.'.opendate',$symb);
- my $add=int(($due-$open)/$interval);
- $ConceptData{'Interval.0'}=$open;
- for (my $i=1;$i<$interval;$i++) {
- $ConceptData{'Interval.'.$i}=$open+$i*$add;
- }
- $ConceptData{'Interval.'.$interval}=$due;
- for (my $i=0;$i<$interval;$i++) {
- for (my $n=0; $n<=$#Concepts; $n++ ) {
- my $tmp=$Concepts[$n];
- $ConceptData{$tmp.'.'.$i.'.true'}=0;
- $ConceptData{$tmp.'.'.$i.'.false'}=0;
- }
- }
-}
+=over 4
-sub ShowOpGraph {
- my ($cache, $students, $courseID)=@_;
- my $uri = $cache->{'AnalyzeURI'};
- my $part = $cache->{'AnalyzePart'};
- my $problem = $cache->{'AnalyzeProblem'};
- my $title = $cache->{'AnalyzeProblem'};
- my $interval = $cache->{'Interval'};
- $ConceptData{"Interval"} = $interval;
+=cut
- #Initialize the option response true answers
- &InitAnalysis($uri, $part, $problem, $students->[0],$courseID);
+package Apache::lonstatistics;
- #compute the intervals
- &Interval($part,$problem);
+use strict;
+use Apache::Constants qw(:common :http);
+use vars qw(
+ @FullClasslist
+ @Students
+ @Sections
+ @SelectedSections
+ %StudentData
+ @StudentDataOrder
+ @SelectedStudentData
+ $enrollment_status);
- $title =~ s/\ /"_"/eg;
- $r->print('<br><b>'.$uri.'</b>');
- $r->rflush();
-
- #Java script Progress window
- &Create_PrgWin();
- &Update_PrgWin("Starting to analyze problem",0,0,'');
- for(my $index=0; $index<(scalar @$students); $index++) {
- &Update_PrgWin(scalar @$students, $index+1, $students->[$index]);
- &OpStatus($problem, $students->[$index], $courseID);
- }
- &Close_PrgWin();
-
- $r->print('<br>');
- for(my $k=0; $k<$interval; $k++ ) {
- &DrawGraph($k,$title);
- }
- for(my $k=0; $k<$interval; $k++ ) {
- &DrawTable($k);
- }
-#$Apache::lonxml::debug=1;
-#&Apache::lonhomework::showhash(%ConceptData);
-#$Apache::lonxml::debug=0;
- my $Answ=&Apache::lonnet::ssi($uri);
- $r->print("<br><b>Here you can see the Problem:</b><br>$Answ");
-}
+use Apache::lonnet();
+use Apache::lonhomework;
+use Apache::loncommon;
+use Apache::loncoursedata;
+use Apache::lonhtmlcommon;
+use Apache::lonmysql;
+use Apache::lonlocal;
+use Time::HiRes;
+#
+# Statistics Packages
+use Apache::lonproblemanalysis();
+use Apache::lonsubmissiontimeanalysis();
+use Apache::loncorrectproblemplot();
+use Apache::lonproblemstatistics();
+use Apache::lonstudentassessment();
+use Apache::lonpercentage;
+use Apache::lonstudentsubmissions();
+use Apache::lonsurveyreports();
-sub DrawTable {
- my $k=shift;
- my $Max=0;
- my @data1;
- my @data2;
- my $Correct=0;
- my $Wrong=0;
- for (my $n=0; $n<=$#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; $n<=$#Concepts; $n++ ) {
- if ($data1[$n]+$data2[$n]<$Max) {
- $data2[$n]+=$Max-($data1[$n]+$data2[$n]);
- }
- }
- my $P_No = $#data1+1;
-# $r->print('<br><b>From: ['.localtime($ConceptData{'Int.'.($k-1)}).
-# '] To: ['.localtime($ConceptData{"Int.$k"}).']</b>');
- my $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; $n<=$#Concepts; $n++ ) {
- $Str .= "\n"."<tr>".
- "\n"."<td>".($n+1)."</td>".
- "\n".'<td bgcolor='.$color{"yellow"}.'> '.$Concepts[$n]." </td>".
- "\n".'<td bgcolor='.$color{"green"}.'> '.$data1[$n]." </td>".
- "\n".'<td bgcolor='.$color{"red"}.'> '.$data2[$n]." </td>".
- "\n"."</tr>";
- }
- $Str.='<td></td><td><b>From:['.localtime($ConceptData{'Int.'.$k}).
- '] To: ['.localtime($ConceptData{'Int.'.($k+1)}-1).
- "]</b></td><td>$Correct</td><td>$Wrong</td>";
+#######################################################
+#######################################################
- $Str .= "\n".'</table>';
+=pod
- $r->print($Str);
-#$Apache::lonxml::debug=1;
-#&Apache::lonhomework::showhash(%ConceptData);
-#$Apache::lonxml::debug=0;
-}
+=item Package Variables
+=item @FullClasslist The full classlist
-sub DrawGraph {
- my ($currentInterval,$title)=@_;
- my $Max=0;
- my @data1;
- my @data2;
-
- # Adjust Data and find the Max
- for(my $n=0; $n<=$#Concepts; $n++ ) {
- my $tmp=$Concepts[$n];
- $data1[$n]=$ConceptData{$tmp.'.'.$currentInterval.'.true'};
- $data2[$n]=$ConceptData{$tmp.'.'.$currentInterval.'.false'};
- my $Sum=$data1[$n]+$data2[$n];
- if($Max < $Sum) { $Max = $Sum; }
- }
- for(my $n=0; $n<=$#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) ?
- $title.'_interval_'.($currentInterval+1) : $title;
-# $GData=$Titr.'&Concepts'.'&'.'Answers'.'&'.$Max.'&'.$P_No.'&'.$data1.'&'.$data2;
- $GData = $Titr.'&Concepts&Answers&'.$Max.'&'.$P_No.'&';
- $GData .= (join(',',@data1)).'&'.(join(',',@data2));
+=item @Students The students we are concerned with for this invocation
- $r->print('<IMG src="/cgi-bin/graph.gif?'.$GData.'" border=1/>');
-}
+=item @Sections The sections available in this class
+=item $curr_student The student currently being examined
-sub Decide {
- #deciding the true or false answer belongs to each interval
- my ($type,$foil,$time)=@_;
- my $k=0;
- while ($time>$ConceptData{'Int.'.($k+1)} &&
- $k<$ConceptData{'Interval'}) {$k++;}
- $ConceptData{"$foil_to_concept{$foil}.$k.$type"}++;
-}
+=item $prev_student The student previous in the classlist
+=item $next_student The student next in the classlist
-#restore the student submissions and finding the result
-sub OpStatus {
- my ($problem, $student, $courseID)=@_;
- my ($username,$userdomain)=split(/':'/,$student);
- my $code='U';
- my %reshash=&Apache::lonnet::restore($problem, $courseID, $userdomain,
- $username);
- my @True = ();
- my @False = ();
- my $flag=0;
- if ($reshash{'version'}) {
- my $tries=0;
- &Apache::lonhomework::showhash(%Answer);
- for (my $version=1;$version<=$reshash{'version'};$version++) {
- my $time=$reshash{"$version:timestamp"};
-
- foreach my $key (sort(split(/\:/,$reshash{$version.':keys'}))) {
- if (($key=~/\.(\w+)\.(\w+)\.submission$/)) {
- my $Id1 = $1; my $Id2 = $2;
- #check if this is a repeat submission, if so skip it
- if ($reshash{"$version:resource.$Id1.previous"}) { next; }
- #if no solved this wasn't a real submission, ignore it
- if (!defined($reshash{"$version:resource.$Id1.solved"})) {
- &Apache::lonxml::debug("skipping ");
- next;
- }
- my $Resp = $reshash{"$version:$key"};
- my %submission=&Apache::lonnet::str2hash($Resp);
- foreach (keys %submission) {
- my $Ansr = $Answer{"$Id1.$Id2.foil.value.$_"};
- if ($submission{$_}) {
- if ($submission{$_} eq $Ansr) {
- &Decide("true",$_,$time );
- }
- else {&Decide("false",$_,$time );}
- }
- }
- }
- }
- }
- }
-}
+=over
-#---- END Analyze Web Page ----------------------------------------------
+=cut
-#---- Problem Statistics Web Page ---------------------------------------
+#######################################################
+#######################################################
+#
+# Classlist variables
+#
+my $curr_student;
+my $prev_student;
+my $next_student;
-#------- Processing upperlist and lowerlist according to each problem
-sub ProcessDiscriminant {
- my ($List) = @_;
- my @sortedList = sort (@$List);
- my $Count = scalar @sortedList;
- my $Problem;
- my @Dis;
- my $Slvd=0;
- my $tmp;
- my $Sum1=0;
- my $Sum2=0;
- my $nIndex=0;
- my $nStudent=0;
- my %Proc=undef;
- while ($nIndex<$Count) {
- ($Problem,$tmp)=split(/\=/,$sortedList[$nIndex]);
- @Dis=split(/\+/,$tmp);
- my $Temp = $Problem;
- do {
- $nIndex++;
- $nStudent++;
- $Sum1 += $Dis[0];
- $Sum2 += $Dis[1];
- ($Problem,$tmp)=split(/\=/,$sortedList[$nIndex]);
- @Dis=split(/\+/,$tmp);
- } while ( $Problem eq $Temp && $nIndex < $Count );
-# $Proc{$Temp}=($Sum1/$nStudent).':'.$nStudent;
- $Proc{$Temp}=($Sum1/$nStudent).':'.($Sum2/$nStudent);
-# $r->print("$nIndex) $Temp --> ($nStudent) $Proc{$Temp} <br>");
- $Sum1=0;
- $Sum2=0;
- $nStudent=0;
- }
+#######################################################
+#######################################################
- return %Proc;
-}
+=pod
+=item &clear_classlist_variables()
-#------- Creating Discimination factor
-sub Discriminant {
- my ($discriminantFactor)=@_;
- my @discriminantKeys=keys(%$discriminantFactor);
- my $Count = scalar @discriminantKeys;
-
- my $UpCnt = int(0.27*$Count);
- my $low=0;
- my $up=$Count-$UpCnt;
- my @UpList=();
- my @LowList=();
-
- $Count=0;
- foreach my $key (sort(@discriminantKeys)) {
- $Count++;
- if($low < $UpCnt || $Count > $up) {
- $low++;
- my $str=$discriminantFactor->{$key};
- foreach(split(/\:/,$str)){
- if($_) {
- if($low<$UpCnt) { push(@LowList,$_); }
- else { push(@UpList,$_); }
- }
- }
- }
- }
- my %DisUp = &ProcessDiscriminant(\@UpList);
- my %DisLow = &ProcessDiscriminant(\@LowList);
+undef the following package variables:
- return (\%DisUp, \%DisLow);
-}
+=over
-sub NumericSort {
- $a <=> $b;
-}
+=item @FullClasslist
-sub CreateProblemStatisticsTableHeading {
- my ($displayFormat,$sequenceSource,$sequenceTitle,$headings)=@_;
- if($displayFormat eq 'Display CSV Format') {
- $r->print('<br>"'.$sequenceTitle.'","');
- $r->print($sequenceSource.'"');
- return;
- }
-
- $r->print('<br><a href="'.$sequenceSource.
- '" target="_blank">'.$sequenceTitle.'</a>');
-
- my $Result = "\n".'<table border=2><tr><th>P#</th>'."\n";
- for(my $nIndex=0; $nIndex < (scalar (keys %$headings)); $nIndex++) {
- $Result .= '<th>'.'<input type="submit" name="';
- $Result .= 'ProblemStatisticsHeading" value="';
- $Result .= $headings->{$nIndex}.'" />'.'</th>'."\n";
- }
- $Result .= "\n".'</tr>'."\n";
- $r->print($Result);
- $r->rflush();
-}
+=item @Students
-sub CloseTable {
- my ($cache)=@_;
- if($cache->{'DisplayFormat'} eq 'Display CSV Format') {
- return;
- }
- $r->print("\n".'</table>'."\n");
- $r->rflush();
-}
+=item @Sections
-# ------ Dump the Student's DB file and handling the data for statistics table
-sub ExtractStudentData {
- my ($cache,$name)=@_;
- my %discriminantFactor;
- my @list=();
-
- my $totalTries = 0;
- my $totalAwarded = 0;
- my $tempProblemOrder=0;
- foreach my $sequence (split(':', $cache->{'orderedSequences'})) {
- if($cache->{'ProblemStatisticsMap'} ne 'All Maps' &&
- $cache->{'ProblemStatisticsMap'} ne $cache->{$sequence.':title'}) {
- next;
- }
-
- my $Dis = '';
- foreach my $problemID (split(':', $cache->{$sequence.':problems'})) {
- my $problem = $cache->{$problemID.':problem'};
- my $LatestVersion = $cache->{$name.':version:'.$problem};
-
- # Output dashes for all the parts of this problem if there
- # is no version information about the current problem.
- #if(!$LatestVersion) {
- # foreach my $part (split(/\:/,$cache->{$sequence.':'.
- # $problemID.
- # ':parts'})) {
- # $codes .= "-,";
- # $attempts .= "0,";
- # }
- # next;
- #}
-
- my %partData=undef;
- # Initialize part data, display skips correctly
- # Skip refers to when a student made no submissions on that
- # part/problem.
- foreach my $part (split(/\:/,$cache->{$sequence.':'.
- $problemID.
- ':parts'})) {
- $partData{$part.':tries'}=0;
- $partData{$part.':code'}='-';
- }
+=item @SelectedSections
- # Looping through all the versions of each part, starting with the
- # oldest version. Basically, it gets the most recent
- # set of grade data for each part.
- for(my $Version=1; $Version<=$LatestVersion; $Version++) {
- foreach my $part (split(/\:/,$cache->{$sequence.':'.
- $problemID.
- ':parts'})) {
-
- if(!defined($cache->{$name.":$Version:$problem".
- ":resource.$part.solved"})) {
- # No grade for this submission, so skip
- next;
- }
-
- my $tries=0;
- my $time=0;
- my $awarded=0;
- my $code='U';
-
- $awarded = $cache->{$name.
- "$Version:$problem:resource.".
- "$part.awarded"};
- $partData{$part.':awarded'} = ($awarded) ? $awarded : 0;
- $totalAwarded += $awarded;
-
- $tries = $cache->{$name.":$Version:$problem".
- ":resource.$part.tries"};
- $partData{$part.':tries'} = ($tries) ? $tries : 0;
- $partData{$part.':wrong'} = $partData{$part.':tries'};
- $totalTries += $tries;
-
- my $val = $cache->{$name.":$Version:$problem".
- ":resource.$part.solved"};
- if ($val eq 'correct_by_student') {$code = 'C';}
- elsif ($val eq 'correct_by_override') {$code = 'O';}
- elsif ($val eq 'incorrect_attempted') {$code = 'I';}
- elsif ($val eq 'incorrect_by_override'){$code = 'I';}
- elsif ($val eq 'excused') {$code = 'x';}
- $partData{$part.':code'}=$code;
-
- if($partData{$part.':wrong'} ne 0 &&
- ($code eq 'C' || $code eq 'O')) {
- $partData{$part.':wrong'}--;
- }
- }
- }
+=item %StudentData
- # Loop through all the parts for the current problem in the
- # correct order and prepare the output
- foreach (split(/\:/,$cache->{$sequence.':'.$problemID.
- ':parts'})) {
- my $Yes = 0;
- if($partData{$_.':code'} eq 'C' ||
- $partData{$_.':code'} eq 'O') {
- $Yes=1;
- }
- #my $ptr = "$hash{'title_'.$ResId}";
- my $ptr = $tempProblemOrder.'&'.$problemID;
+=item @StudentDataOrder
- if($_ > 1) {
- $ptr .= "*(part $_)";
- $Dis .= '&';
- }
- my $Fac = ($partData{$_.':Tries'}) ?
- ($partData{$_.':awarded'}/$partData{$_.':tries'}) : 0;
- my $DisF;
- if($Fac > 0 && $Fac < 1) {
- $DisF = sprintf( "%.4f", $Fac );
- } else {
- $DisF = $Fac;
- }
- $Dis .= $tempProblemOrder.'='.$DisF.'+'.$Yes;
- $ptr .= '&'.$partData{$_.'.Tries'}.
- '&'.$partData{$_.'.Wrongs'}.
- '&'.$partData{$_.'.Code'};
- push (@list, $ptr);
- $tempProblemOrder++;
- }
- }
- if($totalTries) {
- my $DisFac = ($totalAwarded/$totalTries);
- my $DisFactor = sprintf( "%.4f", $DisFac );
- $discriminantFactor{$DisFactor}=$Dis;
- }
- }
+=item @SelectedStudentData
- return (\%discriminantFactor, \@list);
-}
+=item $curr_student
-sub MySort {
- if ( $Pos > 0 ) {
- if ($ENV{'form.order'} eq 'Descending') {$b <=> $a;}
- else { $a <=> $b; }
- }
- else {
- if ($ENV{'form.order'} eq 'Descending') {$b cmp $a;}
- else { $a cmp $b; }
- }
-}
+=item $prev_student
-sub BuildStatisticsTable {
- my ($cache,$discriminantFactor,$list,$headings)=@_;
+=item $next_student
- my $p_count = 0;
- my $nIndex = 0;
- my $dummy;
- my $p_val;
- my $ResId;
- my $NoElements = scalar @$list;
-
- foreach my $sequence (split(':', $cache->{'orderedSequences'})) {
- if($cache->{'ProblemStatisticsMap'} ne 'All Maps' &&
- $cache->{'ProblemStatisticsMap'} ne $cache->{$sequence.':title'}) {
- next;
- }
-
- &CreateProblemStatisticsTableHeading($cache->{'DisplayFormat'},
- $cache->{$sequence.':source'},
- $cache->{$sequence.':title'},
- $headings);
- my ($Hid,$pr)=split(/\:/,$mapsort{$_});
- my @lpr=split(/\&/,$pr);
- for (my $i=1; $i<=$#lpr; $i++) {
- my %storestats=();
- my ($PrOrd,$Prob,$Tries,$Wrongs,$Code)=split(/\&/,$list->[$nIndex]);
- my $Temp = $Prob;
- my $MxTries = 0;
- my $TotalTries = 0;
- my $YES = 0;
- my $Incorrect = 0;
- my $Override = 0;
- my $StdNo = 0;
- my @StdLst;
- while ( $PrOrd == $lpr[$i] )
- {
- $nIndex++;
- $StdNo++;
- $StdLst[ $StdNo ] = $Tries;
- $TotalTries += $Tries;
- if ( $MxTries < $Tries ) { $MxTries = $Tries; }
- if ( $Code eq 'C' ){ $YES++; }
- elsif( $Code eq 'I' ) { $Incorrect++; }
- elsif( $Code eq 'O' ) { $Override++; }
- elsif( $Code eq 'U' ) { $StdNo--; }
- ($PrOrd,$Prob,$Tries,$Wrongs,$Code)=split(/\&/,$list->[$nIndex]);
- }
-
- $p_count++;
- my $Dummy;
- ($ResId,$Dummy)=split(/\*/,$Temp);
-
- $Temp = '<a href="'.$hash{'src_'.$ResId}.
- '" target="_blank">'.$hash{'title_'.$ResId}.$Dummy.'</a>';
-
- my $res = &Apache::lonnet::declutter($hash{'src_'.$ResId});
- my $urlres=$res;
-
- $ResId=~/(\d+)\.(\d+)/;
- my $Map = &Apache::lonnet::declutter( $hash{'map_id_'.$1} );
- $urlres=$Map;
-
- $res = '<a href="'.$hash{'src_'.$ResId}.'">'.$res.'</a>';
- #$Map = '<a href="'.$Map.'">'.$res.'</a>';
-
-#------------------------ Compute the Average of Tries about one problem
- my $Average = ($StdNo) ? $TotalTries/$StdNo : 0;
-
- $storestats{$ENV{'request.course.id'}.'___'.$urlres.'___timestamp'}=time;
- $storestats{$ENV{'request.course.id'}.'___'.$urlres.'___stdno'}=$StdNo;
- $storestats{$ENV{'request.course.id'}.'___'.$urlres.'___avetries'}=$Average;
-
-#-------------------------------- Compute percentage of Wrong tries
- my $Wrong = ( $StdNo ) ? 100 * ( $Incorrect / $StdNo ) : 0;
-
-#-------------------------------- Compute Standard Deviation
- my $StdDev = 0;
- if ( $StdNo > 1 ) {
- for ( my $n = 0; $n < $StdNo; $n++ ) {
- my $Dif = $StdLst[ $n ]-$Average;
- $StdDev += $Dif*$Dif;
- }
- $StdDev /= ( $StdNo - 1 );
- $StdDev = sqrt( $StdDev );
- }
-
-#-------------------------------- Compute Degree of Difficulty
- my $DoDiff = 0;
- if( $TotalTries > 0 ) {
- $DoDiff = 1 - ( ( $YES + $Override ) / $TotalTries );
-# $DoDiff = ($TotalTries)/($YES + $Override+ 0.1);
- }
-
- $storestats{$ENV{'request.course.id'}.'___'.$urlres.'___difficulty'}=$DoDiff;
-
-#-------------------------------- Compute the Skewness
- my $Skewness = 0;
- my $Sum = 0;
- if ( $StdNo > 0 && $StdDev > 0 ) {
- for ( my $n = 0; $n < $StdNo; $n++ ) {
- my $Dif = $StdLst[ $n ]-$Average;
- $Skewness += $Dif*$Dif*$Dif;
- }
- $Skewness /= $StdNo;
- $Skewness /= $StdDev*$StdDev*$StdDev;
- }
-
-#--------------------- Compute the Discrimination Factors
- my ($Up1,$Up2)=split(/\:/,':');#jason$DisUp->{$lpr[$i]});
- my ($Lw1,$Lw2)=split(/\:/,':');#jason$DisLow->{$lpr[$i]});
- my $Dis1 = $Up1 - $Lw1;
- my $Dis2 = $Up2 - $Lw2;
- my $_D1 = sprintf("%.2f", $Dis1);
- my $_D2 = sprintf("%.2f", $Dis2);
-
-#----------------- Some restition in presenting the float numbers
- my $Avg = sprintf( "%.2f", $Average );
- my $Wrng = sprintf( "%.1f", $Wrong );
- my $SD = sprintf( "%.1f", $StdDev );
- my $DoD = sprintf( "%.2f", $DoDiff );
- my $Sk = sprintf( "%.1f", $Skewness );
- my $join = $lpr[$i].'&'.$Temp.'&'.$StdNo.'&'.
- $TotalTries.'&'.$MxTries.'&'.$Avg.'&'.
- $YES.'&'.$Override.'&'.$Wrng.'&'.$DoD.'&'.
- $SD.'&'.$Sk.'&'.$_D1.'&'.$_D2.'&'.
- $Prob;
- $CachData{($p_count-1)}=$join;
-
- $urlres=~/^(\w+)\/(\w+)/;
- if ($StdNo) {
- &Apache::lonnet::put('resevaldata',\%storestats,$1,$2);
- }
-#-------------------------------- Row of statistical table
- &TableRow($cache,$join,$i,($p_count-1));
- }
- &CloseTable($cache);
- }
- &Close_PrgWin();
-}
+=back
-=pod
-sub Cache_Statistics {
- my ($cache)=@_;
- my @list = ();
- my $Useful;
- my $UnUseful;
-# $r->print('<input type="hidden" name="show" value="excel" />'."\n");
- my %myHeader = reverse( %Header );
- $Pos = $myHeader{$ENV{'form.sort'}};
- if ($Pos > 0) {$Pos++;}
- my $p_count = 0;
- foreach my $key( keys %CachData) {
- my @Temp=split(/\&/,$CachData{$key});
- if ( $Pos == 0 ) {
- ($UnUseful,$Useful)=split(/\>/,$Temp[$Pos]);
- }
- else {
- $Useful = $Temp[$Pos];
- }
- $list[$p_count]=$Useful.'@'.$CachData{$key};
- $p_count++;
- }
-
- @list = sort MySort (@list);
-
- my $nIndex=0;
-
- if ( $Pos == 0 ) {
- foreach (sort keys %mapsort) {
- my ($Hid,$pr)=split(/\:/,$mapsort{$_});
- &CreateProblemStatisticsTableHeading($cache,1,$Hid);
- my @lpr=split(/\&/,$pr);
- for (my $i=1; $i<=$#lpr; $i++) {
- my($Pre, $Post) = split(/\@/,$list[$nIndex]);
- #$r->print('<br>'.$Pre.'---'.$Post);
- &TableRow($cache,$Post,$i,$nIndex);
- $nIndex++;
- }
- &CloseTable($cache);
- }
- }
- else {
- &CreateProblemStatisticsTableHeading($cache,0);
- for ( my $nIndex = 0; $nIndex < $p_count; $nIndex++ ) {
- my($Pre, $Post) = split(/\@/,$list[$nIndex]);
- &TableRow($cache,$Post,$nIndex,$nIndex);
- }
- &CloseTable($cache);
- }
-}
=cut
-sub TableRow {
- my ($cache,$Str,$Idx,$RealIdx)=@_;
- my($PrOrd,$Temp,$StdNo,$TotalTries,$MxTries,$Avg,$YES,$Override,
- $Wrng,$DoD,$SD,$Sk,$_D1,$_D2,$Prob)=split(/\&/,$Str);
- if($cache->{'DisplayFormat'} eq 'Display CSV Format') {
- my ($ResId,$Dummy)=split(/\*/,$Prob);
- my $Ptr = "\n".'<br>'.
- "\n".'"'.($RealIdx+1).'",'.
- "\n".'"'.$hash{'title_'.$ResId}.$Dummy.'",'.
- "\n".'"'.$hash{'src_'.$ResId}.'",'.
- "\n".'"'.$StdNo.'",'.
- "\n".'"'.$TotalTries.'",'.
- "\n".'"'.$MxTries.'",'.
- "\n".'"'.$Avg.'",'.
- "\n".'"'.$YES.'",'.
- "\n".'"'.$Override.'",'.
- "\n".'"'.$Wrng.'",'.
- "\n".'"'.$DoD.'",'.
- "\n".'"'.$SD.'",'.
- "\n".'"'.$Sk.'",'.
- "\n".'"'.$_D1.'",'.
- "\n".'"'.$_D2.'"';
- $r->print("\n".$Ptr);
- } else {
- my $Ptr = "\n".'<tr>'.
- "\n".'<td>'.($RealIdx+1).'</td>'.
- # "\n".'<td>'.$PrOrd.$Temp.'</td>'.
- "\n".'<td>'.$Temp.'</td>'.
- "\n".'<td bgcolor='.$color{"yellow"}.'> '.$StdNo.'</td>'.
- "\n".'<td bgcolor='.$color{"yellow"}.'>'.$TotalTries.'</td>'.
- "\n".'<td bgcolor='.$color{"yellow"}.'>'.$MxTries.'</td>'.
- "\n".'<td bgcolor='.$color{"gb"}.'>'.$Avg.'</td>'.
- "\n".'<td bgcolor='.$color{"gb"}.'> '.$YES.'</td>'.
- "\n".'<td bgcolor='.$color{"gb"}.'> '.$Override.'</td>'.
- "\n".'<td bgcolor='.$color{"red"}.'> '.$Wrng.'</td>'.
- "\n".'<td bgcolor='.$color{"red"}.'> '.$DoD.'</td>'.
- "\n".'<td bgcolor='.$color{"green"}.'> '.$SD.'</td>'.
- "\n".'<td bgcolor='.$color{"green"}.'> '.$Sk.'</td>'.
- "\n".'<td bgcolor='.$color{"purple"}.'> '.$_D1.'</td>'.
- "\n".'<td bgcolor='.$color{"purple"}.'> '.$_D2.'</td>';
- $r->print("\n".$Ptr.'</tr>' );
- }
- $GraphDat{$RealIdx}=$DoD.':'.$Wrng;
-}
-sub StatusOptions {
- my ($cache)=@_;
-
- my $Status = $cache->{'Status'};
- my $OpSel1 = '';
- my $OpSel2 = '';
- my $OpSel3 = '';
-
- if($Status eq 'Any') { $OpSel3 = ' selected'; }
- elsif($Status eq 'Expired' ) { $OpSel2 = ' selected'; }
- else { $OpSel1 = ' selected'; }
-
- my $Ptr = '';
- $Ptr .= '<tr><td align="right"><b>Student Status:</b></td>'."\n";
- $Ptr .= '<td align="left"><select name="Status">';
- $Ptr .= '<option'.$OpSel1.'>Active</option>'."\n";
- $Ptr .= '<option'.$OpSel2.'>Expired</option>'."\n";
- $Ptr .= '<option'.$OpSel3.'>Any</option>'."\n";
- $Ptr .= '</select></td></tr>'."\n";
-
- return $Ptr;
+#######################################################
+#######################################################
+sub clear_classlist_variables {
+ undef(@FullClasslist);
+ undef(@Students);
+ undef(@Sections);
+ undef(@SelectedSections);
+ undef(%StudentData);
+ undef(@SelectedStudentData);
+ undef($curr_student);
+ undef($prev_student);
+ undef($next_student);
}
-sub AscendOrderOptions {
- my ($cache)=@_;
+#######################################################
+#######################################################
- my $order = $cache->{'Ascend'};
- my $OpSel1 = '';
- my $OpSel2 = '';
+=pod
- if($order eq 'Ascending') {
- $OpSel1 = ' selected';
- } else {
- $OpSel2 = ' selected';
- }
+=item &PrepareClasslist()
- my $Ptr = '';
- $Ptr .= '<tr><td align="right"><b>Sorting Type:</b></td>'."\n";
- $Ptr .= '<td align="left"><select name="Ascend">'."\n";
- $Ptr .= '<option'.$OpSel1.'>Ascending</option>'."\n".
- '<option'.$OpSel2.'>Descending</option>'."\n";
- $Ptr .= '</select></td></tr>'."\n";
+Build up the classlist information. The classlist information is kept in
+the following package variables:
- return $Ptr;
-}
+=over
-sub ProblemStatisticsButtons {
- my ($cache)=@_;
+=item @FullClasslist
- my $Ptr = '<tr><td></td><td align="left">';
- $Ptr .= '<input type=submit name="ProblemStatisticsRecalculate" ';
- $Ptr .= 'value="Recalculate Statistics"/>'."\n";
- $Ptr .= ' ';
- $Ptr .= '<input type="submit" name="DoDiffGraph" ';
- $Ptr .= 'value="DoDiff Graph" />'."\n";
- $Ptr .= ' ';
- $Ptr .= '<input type="submit" name="PercentWrongGraph" ';
- $Ptr .= 'value="%Wrong Graph" />'."\n";
- $Ptr .= ' ';
- $Ptr .= '<input type="submit" name="DisplayCSVFormat" ';
- if($cache->{'DisplayFormat'} eq 'Display CSV Format') {
- $Ptr .= 'value="Display CSV Format" />'."\n";
- } else {
- $Ptr .= 'value="Display Table Format" />'."\n";
- }
- $Ptr .= '</td></tr>';
+=item @Students
- return $Ptr;
-}
+=item @Sections
-sub ProblemStatisticsLegend {
- my $Ptr = '';
- $Ptr = '<table border="0">';
- $Ptr .= '<tr><td>';
- $Ptr .= '<b>#Stdnts</b>:</td>';
- $Ptr .= '<td>Total Number of Students opened the problem.';
- $Ptr .= '</td></tr><tr><td>';
- $Ptr .= '<b>Tries</b>:</td>';
- $Ptr .= '<td>Total Number of Tries for solving the problem.';
- $Ptr .= '</td></tr><tr><td>';
- $Ptr .= '<b>Mod</b>:</td>';
- $Ptr .= '<td>Maximunm Number of Tries for solving the problem.';
- $Ptr .= '</td></tr><tr><td>';
- $Ptr .= '<b>Mean</b>:</td>';
- $Ptr .= '<td>Average Number of the tries. [ Tries / #Stdnts ]';
- $Ptr .= '</td></tr><tr><td>';
- $Ptr .= '<b>#YES</b>:</td>';
- $Ptr .= '<td>Number of students solved the problem correctly.';
- $Ptr .= '</td></tr><tr><td>';
- $Ptr .= '<b>#yes</b>:</td>';
- $Ptr .= '<td>Number of students solved the problem by override.';
- $Ptr .= '</td></tr><tr><td>';
- $Ptr .= '<b>%Wrng</b>:</td>';
- $Ptr .= '<td>Percentage of students tried to solve the problem ';
- $Ptr .= 'but still incorrect. [ 100*((#Stdnts-(#YES+#yes))/#Stdnts) ]';
- $Ptr .= '</td></tr><tr><td>';
-# Kashy formula
-# '<b> DoDiff </b>: Degree of Difficulty of the problem.<br>'.
-# '[ Tries/(#YES+#yes+0.1) ]<br>'.
- #Gerd formula
- $Ptr .= '<b>DoDiff</b>:</td>';
- $Ptr .= '<td>Degree of Difficulty of the problem. ';
- $Ptr .= '[ 1 - ((#YES+#yes) / Tries) ]';
- $Ptr .= '</td></tr><tr><td>';
- $Ptr .= '<b>S.D.</b>:</td>';
- $Ptr .= '<td>Standard Deviation of the tries. ';
- $Ptr .= '[ sqrt(sum((Xi - Mean)^2)) / (#Stdnts-1) ';
- $Ptr .= 'where Xi denotes every student\'s tries ]';
- $Ptr .= '</td></tr><tr><td>';
- $Ptr .= '<b>Skew.</b>:</td>';
- $Ptr .= '<td>Skewness of the students tries.';
- $Ptr .= '[(sqrt( sum((Xi - Mean)^3) / #Stdnts)) / (S.D.^3)]';
- $Ptr .= '</td></tr><tr><td>';
- $Ptr .= '<b>Dis.F.</b>:</td>';
- $Ptr .= '<td>Discrimination Factor: A Standard for evaluating the ';
- $Ptr .= 'problem according to a Criterion<br>';
- $Ptr .= '<b>[Applied Criterion in %27 Upper Students - ';
- $Ptr .= 'Applied the same Criterion in %27 Lower Students]</b><br>';
- $Ptr .= '<b>1st Criterion</b> for Sorting the Students: ';
- $Ptr .= '<b>Sum of Partial Credit Awarded / Total Number of Tries</b><br>';
- $Ptr .= '<b>2nd Criterion</b> for Sorting the Students: ';
- $Ptr .= '<b>Total number of Correct Answers / Total Number of Tries</b>';
- $Ptr .= '</td></tr></table>';
+=item @SelectedSections
- return $Ptr;
-}
+=item %StudentData
-#---- END Problem Statistics Web Page ----------------------------------------
+=item @SelectedStudentData
-#---- Problem Statistics Graph Web Page --------------------------------------
+=item $curr_student
-sub GetGraphData {
- my ($whichGraph, $courseID)=@_;
- my $Col=0;
- my $graphTitle='';
- my $data='';
- my $count = 0;
- my $Max = 0;
- my $graphData='Graph data does not exist.';
- my $GraphDB = "/home/httpd/perl/tmp/$ENV{'user.name'}".
- "_$ENV{'user.domain'}_$courseID\_graph.db";
- if(-e $GraphDB) {
- if(tie(%GraphDat,'GDBM_File',"$GraphDB",&GDBM_READER,0640)) {
- if($whichGraph eq 'DiffGraph') {
- $graphTitle = 'Degree-of-Difficulty';
- $Col = 0;
- } else {
- $graphTitle = 'Wrong-Percentage';
- $Col = 1;
- }
- foreach (sort NumericSort keys %GraphDat) {
- my @Temp=split(/\:/,$GraphDat{$_});
- my $inf = $Temp[$Col];
- if($Max < $inf) {
- $Max = $inf;
- }
- $data .= $inf.',';
- $count++;
- }
- if($Max > 1) {
- $Max += (10 - $Max % 10);
- $Max = int($Max);
- } else {
- $Max = 1;
- }
- untie(%GraphDat);
- my $Course = $ENV{'course.'.$courseID.'.description'};
- $Course =~ s/\ /"_"/eg;
- $graphData = $Course.'&'.'Problems'.'&'.$graphTitle.'&'.$Max.'&';
- $graphData .= $count.'&'.$data;
- } else {
- $graphData = "Unable to tie hash to db file";
- }
- }
+=item $prev_student
- return $graphData;
-}
+=item $next_student
-#---- END Problem Statistics Graph Web Page ----------------------------------
+=back
-#---- Problem Analysis Web Page ----------------------------------------------
+$curr_student, $prev_student, and $next_student may not be defined, depending
+upon the calling context.
-sub IntervalOptions {
- my ($cache)=@_;
+=cut
- my $interval = 1;
- for(my $n=1; $n<=7; $n++) {
- if($cache->{'Interval'} == $n) {
- $interval = $n;
+#######################################################
+#######################################################
+sub PrepareClasslist {
+ my %Sections;
+ &clear_classlist_variables();
+ #
+ # Retrieve the classlist
+ my $cid = $ENV{'request.course.id'};
+ my $cdom = $ENV{'course.'.$cid.'.domain'};
+ my $cnum = $ENV{'course.'.$cid.'.num'};
+ my ($classlist,$field_names) = &Apache::loncoursedata::get_classlist($cid,
+ $cdom,$cnum);
+ if (exists($ENV{'form.Section'})) {
+ if (ref($ENV{'form.Section'})) {
+ @SelectedSections = @{$ENV{'form.Section'}};
+ } elsif ($ENV{'form.Section'} !~ /^\s*$/) {
+ @SelectedSections = ($ENV{'form.Section'});
+ }
+ }
+ @SelectedSections = ('all') if (! @SelectedSections);
+ foreach (@SelectedSections) {
+ if ($_ eq 'all') {
+ @SelectedSections = ('all');
+ }
+ }
+ #
+ # Deal with instructors with restricted section access
+ if ($ENV{'request.course.sec'} !~ /^\s*$/) {
+ @SelectedSections = ($ENV{'request.course.sec'});
+ }
+ #
+ # Set up %StudentData
+ @StudentDataOrder = qw/fullname username domain id section status comments/;
+ foreach my $field (@StudentDataOrder) {
+ $StudentData{$field}->{'title'} = &mt($field);
+ $StudentData{$field}->{'base_width'} = length(&mt($field));
+ $StudentData{$field}->{'width'} =
+ $StudentData{$field}->{'base_width'};
+ }
+ #
+ # get the status requested
+ $enrollment_status = 'Active';
+ $enrollment_status = $ENV{'form.Status'} if (exists($ENV{'form.Status'}));
+ #
+ # Process the classlist
+ while (my ($student,$student_data) = each (%$classlist)) {
+ my $studenthash = ();
+ for (my $i=0; $i< scalar(@$field_names);$i++) {
+ my $field = $field_names->[$i];
+ # Store the data
+ $studenthash->{$field}=$student_data->[$i];
+ # Keep track of the width of the fields
+ next if (! exists($StudentData{$field}));
+ my $length = length($student_data->[$i]);
+ if ($StudentData{$field}->{'width'} < $length) {
+ $StudentData{$field}->{'width'} = $length;
+ }
}
- }
-
- 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) {
- $Ptr .= ' selected';
+ push (@FullClasslist,$studenthash);
+ #
+ # Build up a list of sections
+ my $section = $studenthash->{'section'};
+ if (! defined($section) || $section =~/^\s*$/ || $section == -1) {
+ $studenthash->{'section'} = 'none';
+ $section = $studenthash->{'section'};
+ }
+ $Sections{$section}++;
+ #
+ # Only put in the list those students we are interested in
+ foreach my $sect (@SelectedSections) {
+ if ( (($sect eq 'all') ||
+ ($section eq $sect)) &&
+ (($studenthash->{'status'} eq $enrollment_status) ||
+ ($enrollment_status eq 'Any'))
+ ){
+ push (@Students,$studenthash);
+ last;
+ }
}
- $Ptr .= '>'.$n."</option>"."\n";
}
- $Ptr .= '</select>'."\n";
-
- return $Ptr;
-}
-
-sub OptionResponseTable {
- my ($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 $number=1;
- foreach (split(':::',$cache->{'OptionResponses'})) {
- my ($uri,$title,$part,$problem)=split('::',$_);
- my $Temp = '<a href="'.$uri.'" target="_blank">'.$title.'</a>';
- $Str .= '<tr>';
- $Str .= '<td> '.$number.' </td>';
- $Str .= '<td bgcolor="'.$color{"green"}.'"> '.$Temp.' </td>';
- $Str .= '<td bgcolor="'.$color{"yellow"}.'"> '.$uri.' </td>';
- $Str .= '<td><input type="submit" name="Analyze:::'.$uri.':::';
- $Str .= $title.':::'.$part.':::'.$problem.'" value="';
- $Str .= 'Analyze" /></td></tr>'."\n";
- $number++;
+ #
+ # Put the consolidated section data in the right place
+ if ($ENV{'request.course.sec'} !~ /^\s*$/) {
+ @Sections = ($ENV{'request.course.sec'});
+ } else {
+ @Sections = sort {$a cmp $b} keys(%Sections);
+ unshift(@Sections,'all'); # Put 'all' at the front of the list
}
- $Str .= '</table>'."\n";
-
- return $Str;
-}
-
-#---- END Problem Analysis Web Page ------------------------------------------
-
-#---- Student Assessment Web Page --------------------------------------------
-
-sub MapOptions {
- my ($cache, $page)=@_;
- my $Ptr = '<tr>';
- $Ptr .= '<td align="right"><b>Select Map</b></td>'."\n";
- $Ptr .= '<td align="left"><select name="Maps">'."\n";
-
- my $selected = 0;
- foreach my $sequence (split(':',$cache->{'orderedSequences'})) {
- $Ptr .= '<option';
- if($cache->{$page.'Map'} eq $cache->{$sequence.':title'}) {
- $Ptr .= ' selected';
- $selected = 1;
+ #
+ # Sort the Students
+ my $sortby = 'fullname';
+ $sortby = $ENV{'form.sort'} if (exists($ENV{'form.sort'}));
+ my @TmpStudents = sort { $a->{$sortby} cmp $b->{$sortby} ||
+ $a->{'fullname'} cmp $b->{'fullname'} } @Students;
+ @Students = @TmpStudents;
+ #
+ # Now deal with that current student thing....
+ $curr_student = undef;
+ if (exists($ENV{'form.SelectedStudent'})) {
+ my ($current_uname,$current_dom) =
+ split(':',$ENV{'form.SelectedStudent'});
+ my $i;
+ for ($i = 0; $i<=$#Students; $i++) {
+ next if (($Students[$i]->{'username'} ne $current_uname) ||
+ ($Students[$i]->{'domain'} ne $current_dom));
+ $curr_student = $Students[$i];
+ last; # If we get here, we have our student.
+ }
+ if (defined($curr_student)) {
+ if ($i == 0) {
+ $prev_student = undef;
+ } else {
+ $prev_student = $Students[$i-1];
+ }
+ if ($i == $#Students) {
+ $next_student = undef;
+ } else {
+ $next_student = $Students[$i+1];
+ }
}
- $Ptr .= '>'.$cache->{$sequence.':title'}.'</option>'."\n";
}
- $Ptr .= '<option';
- if(!$selected) {
- $Ptr .= ' selected';
+ #
+ if (exists($ENV{'form.StudentData'})) {
+ if (ref($ENV{'form.StudentData'}) eq 'ARRAY') {
+ @SelectedStudentData = @{$ENV{'form.StudentData'}};
+ } else {
+ @SelectedStudentData = ($ENV{'form.StudentData'});
+ }
+ } else {
+ @SelectedStudentData = ('username');
}
- $Ptr .= '>All Maps</option>'."\n";
-
- $Ptr .= '</select></td></tr>'."\n";
-
- return $Ptr;
-}
-
-sub StudentOptions {
- my ($students, $selectedName)=@_;
-
- my $Ptr ='<tr>';
- $Ptr .= '<td align="right"><b>Select Student</b></td>'."\n";
- $Ptr .= '<td align="left"><select name="Students">'."\n";
-
- my $selected=0;
- foreach (@$students) {
- my ($name) = split(':',$_);
- $Ptr .= '<option';
- if($selectedName eq $name) {
- $Ptr .= ' selected';
- $selected = 1;
+ foreach (@SelectedStudentData) {
+ if ($_ eq 'all') {
+ @SelectedStudentData = ('all');
+ last;
}
- $Ptr .= '>'.$name.'</option>'."\n";
}
+ #
+ return;
+}
- $Ptr .= '<option';
- if(!$selected) {
- $Ptr .= ' selected';
- }
- $Ptr .= '>No Student Selected</option>'."\n";
- $Ptr .= '</select></td></tr>'."\n";
+#######################################################
+#######################################################
- return $Ptr;
-}
+=pod
-# ------ Create different Student Report
-sub StudentReport {
- my ($cache, $name)=@_;
-
- my $Str = '';
- if($cache->{$name.':error'} =~ /course/) {
- my ($username)=split(':',$name);
- $Str .= '<b><font color="blue">No course data for student </font>';
- $Str .= '<font color="red">'.$username.'.</font></b><br>';
- return $Str;
- }
-
- $Str .= "<table border=2><tr><th> \# </th><th> Set Title </th>";
- $Str .= '<th> Results </th><th> Tries </th></tr>'."\n";
-
- my $codes;
- my $attempts;
- foreach my $sequence (split(':', $cache->{'orderedSequences'})) {
- if($cache->{'StudentAssessmentMap'} ne 'All Maps' &&
- $cache->{'StudentAssessmentMap'} ne $cache->{$sequence.':title'}) {
- next;
- }
-
- $Str .= '<tr><td>'.$sequence.'</td>';
- $Str .= '<td>'.$cache->{$sequence.':title'}.'</td>';
-
- $codes = '';
- $attempts = '';
- foreach my $problemID (split(':', $cache->{$sequence.':problems'})) {
- my $problem = $cache->{$problemID.':problem'};
- my $LatestVersion = $cache->{$name.':version:'.$problem};
-
- # Output dashes for all the parts of this problem if there
- # is no version information about the current problem.
- if(!$LatestVersion) {
- foreach my $part (split(/\:/,$cache->{$sequence.':'.
- $problemID.
- ':parts'})) {
- $codes .= "-,";
- $attempts .= "0,";
- }
- next;
- }
+=item get_students
- my %partData=undef;
- # Initialize part data, display skips correctly
- # Skip refers to when a student made no submissions on that
- # part/problem.
- foreach my $part (split(/\:/,$cache->{$sequence.':'.
- $problemID.
- ':parts'})) {
- $partData{$part.':tries'}=0;
- $partData{$part.':code'}='-';
- }
+Returns a list of the selected students
- # Looping through all the versions of each part, starting with the
- # oldest version. Basically, it gets the most recent
- # set of grade data for each part.
- for(my $Version=1; $Version<=$LatestVersion; $Version++) {
- foreach my $part (split(/\:/,$cache->{$sequence.':'.
- $problemID.
- ':parts'})) {
-
- if(!defined($cache->{$name.":$Version:$problem".
- ":resource.$part.solved"})) {
- # No grade for this submission, so skip
- next;
- }
-
- my $tries=0;
- my $code='U';
-
- $tries = $cache->{$name.":$Version:$problem".
- ":resource.$part.tries"};
- $partData{$part.':tries'}=($tries) ? $tries : 0;
-
- my $val = $cache->{$name.":$Version:$problem".
- ":resource.$part.solved"};
- if ($val eq 'correct_by_student') {$code = 'Y';}
- elsif ($val eq 'correct_by_override') {$code = 'y';}
- elsif ($val eq 'incorrect_attempted') {$code = 'N';}
- elsif ($val eq 'incorrect_by_override'){$code = 'N';}
- elsif ($val eq 'excused') {$code = 'x';}
- $partData{$part.':code'}=$code;
- }
- }
+=cut
- # Loop through all the parts for the current problem in the
- # correct order and prepare the output
- foreach (split(/\:/,$cache->{$sequence.':'.$problemID.
- ':parts'})) {
- $codes .= $partData{$_.':code'}.',';
- $attempts .= $partData{$_.':tries'}.',';
- }
- }
- $codes =~ s/,$//;
- $attempts =~ s/,$//;
- $Str .= '<td>'.$codes.'</td>';
- $Str .= '<td>'.$attempts.'</td>';
- $Str .= '</tr>'."\n";
+#######################################################
+#######################################################
+sub get_students {
+ if (! @Students) {
+ &PrepareClasslist()
}
-
- $Str .= '</table>'."\n";
-
- return $Str;
+ return @Students;
}
-#---- END Student Assessment Web Page ----------------------------------------
+#######################################################
+#######################################################
-#---- Menu Web Page ----------------------------------------------------------
+=pod
-sub Title {
- my ($downloadTime)=@_;
+=item ¤t_student()
- my $Ptr = '';
+Returns a pointer to a hash containing data about the currently
+selected student.
- $Ptr .= '<html><head><title>LON-CAPA Statistics</title></head>'."\n";
- $Ptr .= '<body bgcolor="#FFFFFF">'."\n";
- $Ptr .= '<script>window.focus(); window.width=500;window.height=500;';
- $Ptr .= '</script>'."\n";
- $Ptr .= '<img align=right src=/adm/lonIcons/lonlogos.gif>'."\n";
- $Ptr .= '<h1> Course : "';
- $Ptr .= $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
- $Ptr .= '"</h1>'."\n";
- $Ptr .= '<h3>'.$downloadTime.'</h3>';
+=cut
- return $Ptr;
+#######################################################
+#######################################################
+sub current_student {
+ return $curr_student;
}
-sub CreateMenuForm {
- my ($cache)=@_;
- my $Ptr = '<table border="0">';
- $Ptr .= '<tr><td><input type="submit" name="ProblemStatistics" ';
- $Ptr .= 'value="Problem Stats"/>';
- $Ptr .= '</td></tr>'."\n";
-
- if(defined($cache->{'OptionResponses'})) {
- $Ptr .= '<tr><td><input type="submit" name="ProblemAnalysis" ';
- $Ptr .= 'value="Problem Analysis"/>';
- $Ptr .= '</td></tr>'."\n";
- }
-
- $Ptr .= '<tr><td><input type="submit" name="StudentAssessment" ';
- $Ptr .= 'value="Student Assessment"/>';
- $Ptr .= '</td></tr>'."\n";
- #$Ptr .= '<input type="submit" name="ActivityLog" value="Activity Log"/>';
+#######################################################
+#######################################################
- $Ptr .= '</table>'."\n";
-
- return $Ptr;
-}
-
-#---- END Menu Web Page ------------------------------------------------------
+=pod
-#---- HELPER FUNCTIONS -------------------------------------------------------
+=item &previous_student()
-sub CheckFormElement {
- my ($cache, $ENVName, $cacheName, $default)=@_;
+Returns a pointer to a hash containing data about the student prior
+in the list of students. Or something.
- if(defined($ENV{'form.'.$ENVName})) {
- $cache->{$cacheName} = $ENV{'form.'.$ENVName};
- } elsif(!defined($cache->{$cacheName})) {
- $cache->{$cacheName} = $default;
- }
+=cut
- return;
+#######################################################
+#######################################################
+sub previous_student {
+ return $prev_student;
}
-sub ProcessFormData{
- my ($cacheDB, $isCached)=@_;
- my %cache;
-
- if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT,0640)) {
- # Select page to display
- if(defined($ENV{'form.ProblemStatistics'}) ||
- defined($ENV{'form.ProblemStatisticsRecalculate'}) ||
- defined($ENV{'form.DisplayCSVFormat'})) {
- $cache{'GoToPage'} = 'ProblemStatistics';
- &CheckFormElement(\%cache, 'DisplayCSVFormat',
- 'DisplayFormat', 'Display Table Format');
- &CheckFormElement(\%cache, 'Ascend','ProblemStatisticsAscend',
- 'Ascending');
- &CheckFormElement(\%cache, 'Maps', 'ProblemStatisticsMap',
- 'All Maps');
- } elsif(defined($ENV{'form.ProblemAnalysis'})) {
- $cache{'GoToPage'} = 'ProblemAnalysis';
- &CheckFormElement(\%cache, 'Interval', 'Interval', '1');
- } elsif(defined($ENV{'form.StudentAssessment'}) ||
- defined($ENV{'form.CreateStudentAssessment'}) ||
- defined($ENV{'form.NextStudent'}) ||
- defined($ENV{'form.PreviousStudent'})) {
- $cache{'GoToPage'} = 'StudentAssessment';
- if(defined($ENV{'form.NextStudent'})) {
- $cache{'StudentAssessmentMove'} = 'next';
- } elsif(defined($ENV{'form.PreviousStudent'})) {
- $cache{'StudentAssessmentMove'} = 'previous';
- } else {
- $cache{'StudentAssessmentMove'} = 'selected';
- }
- &CheckFormElement(\%cache, 'Maps', 'StudentAssessmentMap',
- 'All Maps');
+#######################################################
+#######################################################
- &CheckFormElement(\%cache, 'Students', 'StudentAssessmentStudent',
- 'No Student Selected');
- } elsif(defined($ENV{'form.DoDiffGraph'})) {
- $cache{'GoToPage'} = 'DoDiffGraph';
- } elsif(defined($ENV{'form.PercentWrongGraph'})) {
- $cache{'GoToPage'} = 'PercentWrongGraph';
- } elsif(defined($ENV{'form.ActivityLog'})) {
- $cache{'GoToPage'} = 'ActivityLog';
- } else {
- $cache{'GoToPage'} = 'Menu';
- }
+=pod
- &CheckFormElement(\%cache, 'Status', 'Status', 'Active');
+=item &next_student()
- foreach (keys(%ENV)) {
- if(/form\.Analyze:::/) {
- $cache{'GoToPage'} = 'Analyze';
- my ($uri, $title, $part, $problem);
- (undef, $uri, $title, $part, $problem)=split(':::', $_);
- $cache{'AnalyzeURI'} = $uri;
- $cache{'AnalyzeTitle'} = $title;
- $cache{'AnalyzePart'} = $part;
- $cache{'AnalyzeProblem'} = $problem;
+Returns a pointer to a hash containing data about the next student
+to be viewed.
- &CheckFormElement(\%cache, 'Interval', 'Interval', '1');
- }
- }
- }
+=cut
- return;
+#######################################################
+#######################################################
+sub next_student {
+ return $next_student;
}
-=pod
+##############################################
+##############################################
-=item &SortStudents()
+=pod
-Determines which students to display and in which order. Which are
-displayed are determined by their status(active/expired). The order
-is determined by the sort button pressed (default to username). The
-type of sorting is username, lastname, or section.
-
-=over 4
+=item &StudentDataSelect($elementname,$status,$numvisible,$selected)
-Input: $students, $CacheData
+Returns html for a selection box allowing the user to choose one (or more)
+of the fields of student data available (fullname, username, id, section, etc)
-$students: A array pointer to a list of students (username:domain)
+=over 4
-$CacheData: A pointer to the hash tied to the cached data
+=item $elementname The name of the HTML form element
-Output: \@order
+=item $status 'multiple' or 'single' selection box
-@order: An ordered list of students (username:domain)
+=item $numvisible The number of options to be visible
=back
=cut
-sub SortStudents {
- my ($students,$cache)=@_;
-
- my @sorted1Students=();
- foreach (@$students) {
- push(@sorted1Students, $_);
- }
-# my ($end,$start)=split(/\:/,$cache->{$_.':date'});
-# my $active=1;
-# my $now=time;
-# my $Status=$cache->{'form.Status'};
-# $Status = ($Status) ? $Status : 'Active';
-# if((($end) && $now > $end) && (($Status eq 'Active'))) {
-# $active=0;
-# }
-# if(($Status eq 'Expired') && ($end == 0 || $now < $end)) {
-# $active=0;
-# }
-# if($active) {
-# push(@sorted1Students, $_);
-# }
-# }
-
- my $Pos = $cache->{'form.ChartSort'};
- my %sortData;
- if($Pos eq 'Last Name') {
- for(my $index=0; $index<scalar @sorted1Students; $index++) {
- $sortData{$cache->{$sorted1Students[$index].':fullname'}}=
- $sorted1Students[$index];
- }
- } elsif($Pos eq 'Section') {
- for(my $index=0; $index<scalar @sorted1Students; $index++) {
- $sortData{$cache->{$sorted1Students[$index].':section'}.
- $sorted1Students[$index]}=$sorted1Students[$index];
- }
- } else {
- # Sort by user name
- for(my $index=0; $index<scalar @sorted1Students; $index++) {
- $sortData{$sorted1Students[$index]}=$sorted1Students[$index];
- }
- }
-
- my @order = ();
- foreach my $key (sort(keys(%sortData))) {
- push (@order,$sortData{$key});
- }
-
- return \@order;
-}
-
-sub PrepareData {
- my ($c, $cacheDB)=@_;
-
- # Test for access to the cache data
- my $isCached=0;
- my $courseID=$ENV{'request.course.id'};
- my $isRecalculate=0;
- if(defined($ENV{'form.ProblemStatisticsRecalculate'}) ||
- defined($ENV{'form.ChartRecalculate'})) {
- $isRecalculate=1;
+##############################################
+##############################################
+sub StudentDataSelect {
+ my ($elementname,$status,$numvisible)=@_;
+ if ($numvisible < 1) {
+ return;
}
-
- $isRecalculate=1;
-
- $isCached=&Apache::loncoursedata::TestCacheData($cacheDB, $isRecalculate);
- if($isCached < 0) {
- return "Unable to tie hash to db file.";
+ #
+ # Build the form element
+ my $Str = "\n";
+ $Str .= '<select name="'.$elementname.'" ';
+ if ($status ne 'single') {
+ $Str .= 'multiple="true" ';
+ }
+ $Str .= 'size="'.$numvisible.'" >'."\n";
+ #
+ # Deal with 'all'
+ $Str .= ' <option value="all" ';
+ foreach (@SelectedStudentData) {
+ if ($_ eq 'all') {
+ $Str .= 'selected ';
+ last;
+ }
}
- &ProcessFormData($cacheDB, $isCached);
-
- # Download class list information if not using cached data
- my %cache;
- my @students=();
- if(!$isCached) {
- unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT,0640)) {
- return "Unable to tie hash to db file.";
+ $Str .= ">all</option>\n";
+ #
+ # Loop through the student data fields
+ foreach my $item (@StudentDataOrder) {
+ $Str .= ' <option value="'.$item.'" ';
+ foreach (@SelectedStudentData) {
+ if ($item eq $_ ) {
+ $Str .= 'selected ';
+ last;
+ }
}
+ $Str .= '>'.$item."</option>\n";
+ }
+ $Str .= "</select>\n";
+ return $Str;
+}
- my $processTopResourceMapReturn=
- &Apache::loncoursedata::ProcessTopResourceMap(\%cache, $c);
- if($processTopResourceMapReturn ne 'OK') {
- untie(%cache);
- return $processTopResourceMapReturn;
- }
+#######################################################
+#######################################################
- if($c->aborted()) {
- untie(%cache);
- return 'aborted';
- }
+=pod
- my $classlist=&Apache::loncoursedata::DownloadStudentNamePIDSection(
- $courseID,
- $c);
- my ($checkForError)=keys(%$classlist);
- if($checkForError =~ /^(con_lost|error|no_such_host)/i ||
- defined($classlist->{'error'})) {
- untie(%cache);
- return "Error getting student data.";
- }
+=item &get_selected_maps($elementname)
- if($c->aborted()) {
- untie(%cache);
- return 'aborted';
- }
+Input: Name of the <select> form element used to specify the maps.
- # Active is a temporary solution, remember to change
- @students=&Apache::loncoursedata::ProcessClassList(\%cache,
- $classlist,
- $courseID,
- 'Active', $c);
+Returns: Array of symbs of selected maps or the description 'all'.
+ If form.$elementname does not exist, 'all' is returned.
- if($c->aborted()) {
- untie(%cache);
- return 'aborted';
- }
+=cut
- untie(%cache);
- } else {
- if(!$c->aborted() && tie(%cache,'GDBM_File',$cacheDB,
- &GDBM_READER,0640)) {
- @students=split(/:::/,$cache{'NamesOfStudents'});
+#######################################################
+#######################################################
+sub get_selected_maps {
+ my ($elementname) = @_;
+ my @selected_maps;
+ if (exists($ENV{'form.'.$elementname})) {
+ if (ref($ENV{'form.'.$elementname})) {
+ @selected_maps = @{$ENV{'form.'.$elementname}};
} else {
- return 'aborted';
+ @selected_maps = ($ENV{'form.'.$elementname});
}
+ } else {
+ @selected_maps = ('all');
}
-
- return ('OK', $isCached, \@students);
+ return @selected_maps;
}
-# Create progress
-sub Create_PrgWin {
- $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)=@_;
- $r->print('<script>popwin.document.popremain.remaining.value="'.
- 'Computing '.$index.'/'.$totalStudents.': '.
- $name.'";</script>');
- $r->rflush();
-}
+=pod
-# close Progress Line
-sub Close_PrgWin {
- $r->print('<script>popwin.close()</script>');
- $r->rflush();
-}
+=item &sequences_with_assessments
-# For loading the colored table for display or un-colored for print
-sub setbgcolor {
- my $PrintTable=shift;
- undef %color;
- if ($PrintTable){
- $color{"gb"}="#FFFFFF";
- $color{"red"}="#FFFFFF";
- $color{"yellow"}="#FFFFFF";
- $color{"green"}="#FFFFFF";
- $color{"purple"}="#FFFFFF";
- } else {
- $color{"gb"}="#DDFFFF";
- $color{"red"}="#FFDDDD";
- $color{"yellow"}="#EEFFCC";
- $color{"green"}="#DDFFDD";
- $color{"purple"}="#FFDDFF";
- }
+Retrieve the sequences which were selected by the user to show.
- return;
-}
+Input: $mode: scalar. Either 'selected' or 'all'. If not specified,
+ 'selected' is used.
-sub initial {
- undef %hash;
- undef %CachData;
- undef %GraphDat;
- undef %ConceptData;
- undef $Pos;
- undef $GData;
-}
+Returns: an array containing a navmap object and navmap resources,
+ or an array containing a scalar with an error message.
-#---- END HELPER FUNCTIONS ---------------------------------------------------
+=cut
-sub BuildProblemStatisticsPage {
- my ($cacheDB, $students)=@_;
+#######################################################
+#######################################################
+sub sequences_with_assessments {
+ my ($mode) = @_;
+ $mode = 'selected' if (! defined($mode));
+ my $navmap = Apache::lonnavmaps::navmap->new();
+ if (!defined($navmap)) {
+ return ('Can not open Coursemap');
+ }
+ #
+ my @sequences = $navmap->retrieveResources(undef,
+ sub { shift->is_map(); },1,0,1);
+ my @sequences_with_assessments;
+ for my $sequence ($navmap->getById('0.0'), @sequences) {
+ if ($navmap->hasResource($sequence,sub { shift->is_problem(); }, 0)){
+ push(@sequences_with_assessments,$sequence);
+ }
+ }
+ #
+ my @sequences_to_show;
+ foreach my $sequence (@sequences_with_assessments) {
+ if ($mode eq 'all') {
+ push (@sequences_to_show,$sequence);
+ } elsif ($mode eq 'selected') {
+ foreach my $map_symb (&get_selected_maps()) {
+ if ($sequence->symb eq $map_symb || $map_symb eq 'all'){
+ push (@sequences_to_show,$sequence);
+ last; # Only put it in once
+ }
+ }
+ }
- my %cache;
- unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
- $r->print('<html><body>Unable to tie database.</body></html>');
- return;
}
+ return $navmap,@sequences_to_show;
+}
- my $Ptr = '';
- $Ptr .= '<form name="ProblemStatisticsPage" method="post" ';
- $Ptr .= 'action="/adm/statistics">'."\n";
- $Ptr .= '<table border="0"><tbody>';
- $Ptr .= '<tr><td></td><td align="left"><input type="submit" name="Menu" ';
- $Ptr .= 'value="Return to Menu" /></td></tr>'."\n";
- $r->print($Ptr);
-
- $r->print(&MapOptions(\%cache, 'ProblemStatistics'));
- $r->print(&StatusOptions());
- $r->print(&AscendOrderOptions());
- $r->print(&ProblemStatisticsButtons(\%cache));
- $r->print('</table>');
-
- $r->print(&ProblemStatisticsLegend());
-
-# my $discriminantFactor;
-# my $list;
-# foreach (@$students) {
-# ($discriminantFactor, $list) = &ExtractStudentData($_);
-# }
-
-# my ($upper, $lower) = &Discriminant($discriminantFactor);
-# my %Header = (0,"Homework Sets Order",1,"#Stdnts",2,"Tries",3,"Mod",
-# 4,"Mean",5,"#YES",6,"#yes",7,"%Wrng",8,"DoDiff",
-# 9,"S.D.",10,"Skew.",11,"D.F.1st",12,"D.F.2nd");
-# &BuildStatisticsTable(\%cache, $discriminantFactor, $list, \%Header);
+##############################################
+##############################################
- $r->print('</form>');
+=pod
- untie(%cache);
+=item &map_select($elementname,$status,$numvisible,$restriction)
- return;
-}
+Returns html for a selection box allowing the user to choose one (or more)
+of the sequences in the course. The values of the sequences are the symbs.
+If the top sequence is selected, the value 'top' will result.
-sub BuildDiffGraph {
- my ($courseID)=@_;
+=over 4
- my $graphData = &GetGraphData('DiffGraph', $courseID);
- $r->print('<IMG src="/cgi-bin/graph.gif?'.$graphData.'" />');
+=item $elementname The name of the HTML form element
- return;
-}
-
-sub BuildWrongGraph {
- my ($courseID)=@_;
+=item $status 'multiple' or 'single' selection box
- my $graphData = &GetGraphData('WrongGraph', $courseID);
- $r->print('<IMG src="/cgi-bin/graph.gif?'.$graphData.'" />');
+=item $numvisible The number of options to be visible
- return;
-}
+=back
-sub BuildAnalyzePage {
- my ($cacheDB, $students, $courseID)=@_;
+=cut
- my %cache;
- unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
- $r->print('<html><body>Unable to tie database.</body></html>');
+##############################################
+##############################################
+sub map_select {
+ my ($elementname,$status,$numvisible)=@_;
+ if ($numvisible < 1) {
return;
}
+ #
+ # Set up array of selected items
+ my @selected_maps = &get_selected_maps($elementname);
+ #
+ # Build the form element
+ my $form = "\n";
+ $form .= '<select name="'.$elementname.'" ';
+ if ($status ne 'single') {
+ $form .= 'multiple="true" ';
+ }
+ $form .= 'size="'.$numvisible.'" >'."\n";
+ #
+ # Deal with 'all'
+ foreach (@selected_maps) {
+ if ($_ eq 'all') {
+ @selected_maps = ('all');
+ last;
+ }
+ }
+ #
+ # Put in option for 'all'
+ $form .= ' <option value="all" ';
+ foreach (@selected_maps) {
+ if ($_ eq 'all') {
+ $form .= 'selected ';
+ last;
+ }
+ }
+ $form .= ">all</option>\n";
+ #
+ # Loop through the sequences
+ my @sequences = &sequences_with_assessments();
+ my $navmap;
+ if (!ref($sequences[0])) {
+ return $sequences[0];
+ } else {
+ $navmap = shift(@sequences);
+ }
+ foreach my $seq (@sequences){
+ $form .= ' <option value="'.$seq->symb.'" ';
+ foreach (@selected_maps) {
+ if ($seq->symb eq $_) {
+ $form .= 'selected ';
+ last;
+ }
+ }
+ $form .= '>'.$seq->compTitle."</option>\n";
+ }
+ $form .= "</select>\n";
+ return $form;
+}
- &ShowOpGraph(\%cache, $students, $courseID);
-
- untie(%cache);
+##############################################
+##############################################
- return;
-}
+=pod
-sub BuildProblemAnalysisPage {
- my ($cacheDB)=@_;
+=item &SectionSelect($elementname,$status,$numvisible)
- my %cache;
- unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
- $r->print('<html><body>Unable to tie database.</body></html>');
- return;
- }
+Returns html for a selection box allowing the user to choose one (or more)
+of the sections in the course.
- $r->print('<form name="ProblemAnalysisPage" method="post" ');
- $r->print('action="/adm/statistics">'."\n");
- $r->print('<tr><td></td><td align="left"><input type="submit" ');
- $r->print('name="Menu" value="Return to Menu" /></td></tr>'."\n");
- $r->print(&IntervalOptions());
- $r->print(&OptionResponseTable(\%cache));
- $r->print('</form>'."\n");
+Uses the package variables @Sections and @SelectedSections
+=over 4
- untie(%cache);
+=item $elementname The name of the HTML form element
- return;
-}
+=item $status 'multiple' or 'single' selection box
-sub BuildStudentAssessmentPage {
- my ($cacheDB, $students, $courseID)=@_;
+=item $numvisible The number of options to be visible
- my %cache;
+=back
- my $Ptr = '';
- $Ptr .= '<form name="StudentAssessmentPage" method="post" ';
- $Ptr .= 'action="/adm/statistics">'."\n";
- $Ptr .= '<table border="0"><tbody>';
- $Ptr .= '<tr><td></td><td align="left"><input type="submit" name="Menu" ';
- $Ptr .= 'value="Return to Menu" /></td></tr>'."\n";
- $r->print($Ptr);
+=cut
- unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
- $r->print('<html><body>Unable to tie database.</body></html>');
+##############################################
+##############################################
+sub SectionSelect {
+ my ($elementname,$status,$numvisible)=@_;
+ if ($numvisible < 1) {
return;
}
-
- my $selectedName = $cache{'StudentAssessmentStudent'};
- for(my $index=0; $index<(scalar @$students); $index++) {
- my ($username) = split(':', $students->[$index]);
- if($username eq $selectedName) {
- if($cache{'StudentAssessmentMove'} eq 'next') {
- if($index == ((scalar @$students) - 1)) {
- ($selectedName) = split(':',$students->[0]);
- } else {
- ($selectedName) = split(':',$students->[$index+1]);
- }
- } elsif($cache{'StudentAssessmentMove'} eq 'previous') {
- if($index == 0) {
- ($selectedName) = split(':',
- $students->[(scalar @$students)-1]);
- } else {
- ($selectedName)=split(':',$students->[$index-1]);
- }
+ #
+ # Make sure we have the data we need to continue
+ if (! @Sections) {
+ &PrepareClasslist()
+ }
+ #
+ # Build the form element
+ my $Str = "\n";
+ $Str .= '<select name="'.$elementname.'" ';
+ if ($status ne 'single') {
+ $Str .= 'multiple="true" ';
+ }
+ $Str .= 'size="'.$numvisible.'" >'."\n";
+ #
+ # Loop through the sequences
+ foreach my $s (@Sections) {
+ $Str .= ' <option value="'.$s.'" ';
+ foreach (@SelectedSections) {
+ if ($s eq $_) {
+ $Str .= 'selected ';
+ last;
}
- last;
}
+ $Str .= '>'.$s."</option>\n";
}
+ $Str .= "</select>\n";
+ return $Str;
+}
- $r->print(&MapOptions(\%cache, 'StudentAssessment'));
- $r->print(&StudentOptions($students, $selectedName));
-
- $Ptr = '<tr><td></td><td align="left">';
- $Ptr .= '<input type="submit" name="CreateStudentAssessment" ';
- $Ptr .= 'value="Create Student Report" />';
- $Ptr .= '   ';
- $Ptr .= '<input type="submit" name="PreviousStudent" ';
- $Ptr .= 'value="Previous Student" />';
- $Ptr .= '   ';
- $Ptr .= '<input type="submit" name="NextStudent" ';
- $Ptr .= 'value="Next Student" />';
- $Ptr .= '   ';
- $Ptr .= '</td></tr></tbody></table></form>'."\n";
- $r->print($Ptr);
-
- untie(%cache);
-
- if($selectedName eq 'No Student Selected') {
- $r->print('<h3><font color=blue>WARNING: ');
- $r->print('Please select a student</font></h3>');
- return;
- }
-
- my $name = '';
- foreach (@$students) {
- my ($currentName) = split(':',$_);
- if($currentName eq $selectedName) {
- $name = $_;
- last;
+##################################################
+##################################################
+sub DisplayClasslist {
+ my ($r)=@_;
+ &Apache::lonhtmlcommon::add_breadcrumb
+ ({text=>'Select One Student'});
+ #
+ # Output some of the standard interface components
+ my $Str;
+ $Str .= &Apache::lonhtmlcommon::breadcrumbs(undef,'Select One Student');
+ $Str .= '<p><table cellspacing="5">'."\n";
+ $Str .= '<tr>';
+ $Str .= '<th align="center"><b>'.&mt('Sections').'</b></th>';
+ $Str .= '<th align="center"><b>'.&mt('Enrollment Status').'</b></th>';
+ $Str .= '</tr>'.$/;
+ $Str .= '<tr>';
+ $Str .= '<td>'.
+ &Apache::lonstatistics::SectionSelect('Section','multiple',5).
+ '</td>';
+ $Str .= '<td>'.
+ &Apache::lonhtmlcommon::StatusOptions(undef,undef,5).
+ '</td>';
+
+ $Str .= '</tr>'.$/;
+ $Str .= '</table></p>';
+ $Str .= '<input type="submit" name="selectstudent" value="'.
+ &mt('Update Display').'" />';
+ $r->print($Str);
+ $r->rflush();
+ #
+ my @Fields = ('fullname','username','domain','id','section','status');
+ #
+ $Str = '';
+ if (! @Students) {
+ if ($SelectedSections[0] eq 'all') {
+ if (lc($ENV{'form.Status'}) eq 'any') {
+ $Str .= '<h2>'.
+ &mt('There are no students in the course.').
+ '</h2>';
+ } elsif (lc($ENV{'form.Status'}) eq 'active') {
+ $Str .= '<h2>'.
+ &mt('There are no currently enrolled students in the course.').
+ '</h2>';
+ } elsif (lc($ENV{'form.Status'}) eq 'expired') {
+ $Str .= '<h2>'.
+ &mt('There are no previously enrolled students in the course.').
+ '</h2>';
+ }
+ } else {
+ my $sections;
+ if (lc($ENV{'form.Status'}) eq 'any') {
+ $Str .= '<h2>'.
+ &mt('There are no students in the selected sections.').
+ '</h2>';
+ } elsif (lc($ENV{'form.Status'}) eq 'active') {
+ $Str .= '<h2>'.
+ &mt('There are no currently enrolled students in the selected sections.').
+ '</h2>';
+ } elsif (lc($ENV{'form.Status'}) eq 'expired') {
+ $Str .= '<h2>'.
+ &mt('There are no previously enrolled students in the selected sections.').
+ '</h2>';
+ }
}
- }
- if($name eq '') {
- $r->print('<h3><font color=blue>ERROR: Unknown student selected.');
- $r->print('</font></h3>');
+ $Str.= '<a href="/adm/statistics?reportSelected=student_assessment">'.
+ &mt('Click here to return to the chart').'</a>';
+ $r->print($Str);
+ $r->rflush();
return;
}
- my $courseData =
- &Apache::loncoursedata::DownloadStudentCourseInformation($name,
- $courseID);
- if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT,0640)) {
- &Apache::loncoursedata::ProcessStudentData(\%cache,
- $courseData, $name);
- untie(%cache);
- }
-
- unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
- $Ptr .= 'Could not tie database.';
- return $Ptr;
+ # "Click" is asinine but it is probably not my place to change the world.
+ $Str .= '<h2>Click on a students name or username to view their chart</h2>';
+ $Str .= '<table border="0"><tr><td bgcolor="#777777">'."\n";
+ $Str .= '<table border="0" cellpadding="3"><tr bgcolor="#e6ffff">'."\n";
+ foreach my $field (@Fields) {
+ $Str .= '<th><a href="/adm/statistics?'.
+ 'reportSelected=student_assessment&'.
+ 'selectstudent=1&'.
+ 'sort='.$field.'">'.&mt($field).
+ '</a></th>';
+ }
+ $Str .= '</tr>'."\n";
+ #
+ my $alternate = 0;
+ foreach my $student (@Students) { # @Students is a package variable
+ my $sname = $student->{'username'}.':'.$student->{'domain'};
+ if($alternate) {
+ $Str .= '<tr bgcolor="#ffffe6">';
+ } else {
+ $Str .= '<tr bgcolor="#ffffc6">';
+ }
+ $alternate = ($alternate + 1) % 2;
+ #
+ foreach my $field (@Fields) {
+ $Str .= '<td>';
+ if ($field eq 'fullname' || $field eq 'username') {
+ $Str .= '<a href="/adm/statistics?reportSelected=';
+ $Str .= &Apache::lonnet::escape('student_assessment');
+ $Str .= '&sort='.&Apache::lonnet::escape($ENV{'form.sort'});
+ $Str .= '&SelectedStudent=';
+ $Str .= &Apache::lonnet::escape($sname).'">';
+ $Str .= $student->{$field}.' ';
+ $Str .= '</a>';
+ } elsif ($field eq 'status') {
+ $Str .= &mt($student->{$field});
+ } else {
+ $Str .= $student->{$field};
+ }
+ $Str .= '</td>';
+ }
+ $Str .= "</tr>\n";
}
- $r->print(&StudentReport(\%cache, $name));
- untie(%cache);
-
+ $Str .= '</table></td></tr></table>'."\n";
+ #
+ $r->print($Str);
+ $r->rflush();
+ #
return;
}
-sub BuildMenu {
- my ($cacheDB)=@_;
-
- my %cache;
- unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
- $r->print('<html><body>Unable to tie database.</body></html>');
- return;
+##############################################
+##############################################
+sub CreateMainMenu {
+ #
+ # Define menu data
+ my @reports = ({ internal_name => 'problem_statistics',
+ name => &mt('Overall Problem Statistics'),
+ short_description =>
+ &mt('Student performance statistics on all problems.'),
+ },
+ { internal_name => 'problem_analysis',
+ name => &mt('Detailed Problem Analysis'),
+ short_description =>
+ &mt('Detailed statistics and graphs of student performance on problems.'),
+ },
+ { internal_name => 'submissiontime_analysis',
+ name => &mt('Submission Time Plots'),
+ short_description =>
+ &mt('Display and analysis of submission times on assessments.'),
+ },
+ { internal_name => 'student_submission_reports',
+ name => &mt('Student Submission Reports'),
+ short_description =>
+ &mt('Prepare reports of student submissions.'),
+ },
+ { internal_name => 'survey_reports',
+ name => &mt('Survey Reports'),
+ short_description =>
+ &mt('Prepare reports on survey results.'),
+ },
+ { internal_name => 'correct_problems_plot',
+ name => &mt('Correct Problems Plot'),
+ short_description =>
+ &mt('Display a histogram of student performance in the course.'),
+ },
+# { internal_name => 'student_assessment',
+# name => &mt('Problem Status Chart'),
+# short_description =>
+# &mt('Brief view of each students performance in course.'),
+# },
+ # 'percentage' => 'Correct-problems Plot',
+ # 'activitylog' => 'Activity Log',
+ );
+ #
+ # Create the menu
+ my $Str;
+ $Str .= '<h2>'.&mt('Please select a report to generate').'</h2>';
+ foreach my $reportdata (@reports) {
+ $Str .=' <h3><a href="/adm/statistics?reportSelected='.
+ $reportdata->{'internal_name'}.'" >'.
+ $reportdata->{'name'}."</a></h3>\n";
+ $Str .= ' '.(' 'x8).$reportdata->{'short_description'}.
+ "\n";
}
-
- $r->print('<form name="Menu" method="post" action="/adm/statistics" >');
- $r->print(&CreateMenuForm(\%cache));
- $r->print('</form>'."\n");
-
- untie(%cache);
-
- return;
+ $Str .="</dl>\n";
+ #
+ return $Str;
}
-# ================================================================ Main Handler
-
+##############################################
+##############################################
sub handler {
- $r=shift;
- &initial();
-
- unless(&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) {
+ my $r=shift;
+ my $c = $r->connection();
+ #
+ # Check for overloading
+ my $loaderror=&Apache::lonnet::overloaderror($r);
+ if ($loaderror) { return $loaderror; }
+ $loaderror=
+ &Apache::lonnet::overloaderror($r,
+ $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
+ if ($loaderror) { return $loaderror; }
+ #
+ # Check for access
+ if (! &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) {
$ENV{'user.error.msg'}=
- $r->uri.":vgr:0:0:Cannot view grades for complete course";
- return HTTP_NOT_ACCEPTABLE;
+ $r->uri.":vgr:0:0:Cannot view grades for complete course";
+ if (! &Apache::lonnet::allowed('vgr',
+ $ENV{'request.course.id'}.'/'.$ENV{'request.course.sec'})) {
+ $ENV{'user.error.msg'}=
+ $r->uri.":vgr:0:0:Cannot view grades with given role";
+ return HTTP_NOT_ACCEPTABLE;
+ }
}
-
- # Set document type for header only
- if($r->header_only) {
- if ($ENV{'browser.mathml'}) {
- $r->content_type('text/xml');
- } else {
- $r->content_type('text/html');
+ #
+ # Send the header
+ &Apache::loncommon::no_cache($r);
+ &Apache::loncommon::content_type($r,'text/html');
+ $r->send_http_header;
+ if ($r->header_only) { return OK; }
+ #
+ # Extract form elements from query string
+ &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+ ['sort','reportSelected',
+ 'SelectedStudent']);
+ #
+ # Give the LON-CAPA page header
+ my $style = <<ENDSTYLE;
+<style type="text/css">
+ ul.sub_studentans { list-style-type: none }
+ ul.sub_correctans { list-style-type: none }
+ tr.even { background-color: \#CCCCCC }
+ td.essay { border: 1px solid gray; }
+</style>
+ENDSTYLE
+ my $html=&Apache::lonxml::xmlbegin();
+ $r->print($html.'<head><title>'.
+ &mt('Course Statistics and Charts').
+ '</title>'.$style.
+ "</head>\n".
+ &Apache::loncommon::bodytag('Course Statistics and Charts'));
+ $r->rflush();
+ #
+ # Either print out a menu for them or send them to a report
+ &Apache::lonhtmlcommon::clear_breadcrumbs();
+ &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/statistics',
+ title=>'Statistics',
+ text =>'Statistics',
+ faq=>139,
+ bug=>'Statistics and Charts'});
+ if (! exists($ENV{'form.reportSelected'}) ||
+ $ENV{'form.reportSelected'} eq '') {
+ $r->print(&Apache::lonhtmlcommon::breadcrumbs
+ (undef,&mt('Statistics Main Page')).
+ &CreateMainMenu());
+ } else {
+ #
+ if (! &Apache::lonmysql::verify_sql_connection()) {
+ my $serveradmin = $r->dir_config('lonAdmEMail');
+ $r->print('<h2><font color="Red">'.
+ &mt('Unable to connect to database!').
+ '</font></h2>');
+ $r->print('<p>'.
+ &mt('Please notify the server administrator ').
+ '<b>'.$serveradmin.'</b></p>');
+ $r->print('<p>'.
+ &mt('Course Statistics and Charts cannot be '.
+ 'retrieved until the database is restarted. '.
+ 'Your data is intact but cannot be displayed '.
+ 'at this time.').'</p>');
+ $r->print('</body></html>');
+ return;
+ }
+ #
+ # Clean out the caches
+ if (exists($ENV{'form.ClearCache'})) {
+ &Apache::loncoursedata::delete_caches($ENV{'requres.course.id'});
+ }
+ #
+ # Begin form output
+ $r->print('<form name="Statistics" ');
+ $r->print('method="post" action="/adm/statistics">');
+ $r->rflush();
+ #
+ my $GoToPage = $ENV{'form.reportSelected'};
+ #
+ $r->print('<input type="hidden" name="reportSelected" value="'.
+ $GoToPage.'">');
+ if($GoToPage eq 'activitylog') {
+# &Apache::lonproblemstatistics::Activity();
+ } elsif($GoToPage eq 'problem_statistics') {
+ &Apache::lonhtmlcommon::add_breadcrumb
+ ({href=>'/adm/statistics?reportselected=problem_statistics',
+ text=>'Overall Problem Statistics'});
+ &Apache::lonproblemstatistics::BuildProblemStatisticsPage($r,$c);
+ } elsif($GoToPage eq 'problem_analysis') {
+ &Apache::lonhtmlcommon::add_breadcrumb
+ ({href=>'/adm/statistics?reportselected=problem_analysis',
+ text=>'Detailed Problem Analysis'});
+ &Apache::lonproblemanalysis::BuildProblemAnalysisPage($r,$c);
+ } elsif($GoToPage eq 'submissiontime_analysis') {
+ &Apache::lonhtmlcommon::add_breadcrumb
+ ({href=>
+ '/adm/statistics?reportselected=submissiontime_analysis',
+ text=>'Submission Time Plots'});
+ &Apache::lonsubmissiontimeanalysis::BuildSubmissionTimePage($r,$c);
+ } elsif($GoToPage eq 'student_submission_reports') {
+ &Apache::lonhtmlcommon::add_breadcrumb
+ ({href=>
+ '/adm/statistics?reportselected=student_submission_reports',
+ text=>'Student Submission Reports'});
+ &Apache::lonstudentsubmissions::BuildStudentSubmissionsPage($r,$c);
+ } elsif($GoToPage eq 'survey_reports') {
+ &Apache::lonhtmlcommon::add_breadcrumb
+ ({href=>
+ '/adm/statistics?reportselected=survey_reports',
+ text=>'Survey Reports'});
+ &Apache::lonsurveyreports::BuildSurveyReportsPage($r,$c);
+ } elsif($GoToPage eq 'correct_problems_plot') {
+ &Apache::lonhtmlcommon::add_breadcrumb
+ ({href=>'/adm/statistics?reportselected=correct_problems_plot',
+ text=>'Correct Problems Plot'});
+ &Apache::loncorrectproblemplot::BuildCorrectProblemsPage($r,$c);
+ } elsif($GoToPage eq 'student_assessment') {
+ &Apache::lonhtmlcommon::clear_breadcrumbs();
+ &Apache::lonhtmlcommon::add_breadcrumb
+ ({href=>'/adm/statistics?reportselected=student_assessment',
+ text=>'Chart'});
+ &Apache::lonstudentassessment::BuildStudentAssessmentPage($r,$c);
}
- &Apache::loncommon::no_cache($r);
- $r->send_http_header;
- return OK;
+ #
+ $r->print("</form>\n");
}
+ $r->print("</body>\n</html>\n");
+ $r->rflush();
+ #
+ return OK;
+}
- unless($ENV{'request.course.fn'}) {
- my $requrl=$r->uri;
- $ENV{'user.error.msg'}="$requrl:bre:0:0:Course not initialized";
- return HTTP_NOT_ACCEPTABLE;
- }
+1;
- $r->content_type('text/html');
- $r->send_http_header;
+#######################################################
+#######################################################
- my %cache;
- my $courseID=$ENV{'request.course.id'};
- my $cacheDB = "/home/httpd/perl/tmp/$ENV{'user.name'}".
- "_$ENV{'user.domain'}_$courseID\_statistics.db";
- my $c = $r->connection;
-
- my ($returnValue, $isCached, $students) = &PrepareData($c, $cacheDB);
- if($returnValue ne 'OK') {
- $r->print('<html><body>'.$returnValue."\n".'</body></html>');
- return OK;
- }
-
- my $downloadTime=0;
- my $GoToPage;
- if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
- $students = &SortStudents($students, \%cache);
- if(defined($cache{'time'})) {
- $downloadTime=$cache{'time'};
- } else {
- $downloadTime=localtime();
- }
- if(!defined($cache{'GoToPage'})) {
- $GoToPage = 'Menu';
- } else {
- $GoToPage = $cache{'GoToPage'};
- }
- untie(%cache);
- } else {
- $r->print('<html><body>Unable to tie database.</body></html>');
- return OK;
- }
+=pod
- &setbgcolor(0);
- $r->print(&Title());
+=back
- if($GoToPage eq 'ActivityLog') {
- &Activity();
- } elsif($GoToPage eq 'ProblemStatistics') {
- &BuildProblemStatisticsPage($cacheDB, $students);
- } elsif($GoToPage eq 'ProblemAnalysis') {
- &BuildProblemAnalysisPage($cacheDB);
- } elsif($GoToPage eq 'StudentAssessment') {
- &BuildStudentAssessmentPage($cacheDB, $students, $courseID);
- } elsif($GoToPage eq 'Analyze') {
- &BuildAnalyzePage($cacheDB, $students, $courseID);
- } elsif($GoToPage eq 'DoDiffGraph') {
- &BuildDiffGraph($courseID);
- } elsif($GoToPage eq 'PercentWrongGraph') {
- &BuildWrongGraph($courseID);
- } else {
- &BuildMenu($cacheDB);
- }
+=cut
- $r->print("\n".'</body>'."\n".'</html>');
- $r->rflush();
+#######################################################
+#######################################################
- return OK;
-}
-1;
__END__
+