--- loncom/interface/lonstatistics.pm 2002/02/05 12:24:45 1.2
+++ loncom/interface/lonstatistics.pm 2002/07/26 16:22:09 1.33
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# (Publication Handler
#
-# $Id: lonstatistics.pm,v 1.2 2002/02/05 12:24:45 minaeibi Exp $
+# $Id: lonstatistics.pm,v 1.33 2002/07/26 16:22:09 stredwic Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -27,1374 +27,613 @@
#
# (Navigate problems for statistical reports
# YEAR=2001
-# 5/05/01, 7/09/01, 7/25/01, 8/11/01,9/13/01, 9/26/01 Behrouz Minaei
-# 10/5/01, 10/9/01, 10/22/01, 10/26/01 Behrouz Minaei
-# 11/1/01, 11/4/01, 11/16/01 Behrouz Minaei
-# 12/14/01, 12/16/01, 12/18/01,12/20/01,12/31/01 Behrouz Minaei
+# 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
-# 1/22/02,2/1/02
+# 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
+# 5/12,5/14,5/15,5/19,5/26,7/16,25/7 Behrouz Minaei
+#
###
-package Apache::lonstatistics;
+package Apache::lonstatistics;
use strict;
use Apache::Constants qw(:common :http);
use Apache::lonnet();
use Apache::lonhomework;
+use Apache::loncommon;
+use Apache::loncoursedata;
+use Apache::lonhtmlcommon;
+use Apache::lonproblemanalysis;
+use Apache::lonproblemstatistics;
+use Apache::lonstudentassessment;
+use Apache::lonchart;
use HTML::TokeParser;
use GDBM_File;
-use Benchmark;
-# -------------------------------------------------------------- Module Globals
-my %hash;
-my %CachData;
-my %GraphDat;
-my %maps;
-my @mapsort;
-my %section;
-my %StuBox;
-my %DiscFac;
-my $CurMap;
-my $CurSec;
-my $CurStu;
-my @cols;
-my @list;
-my @students;
-my $p_count;
-my $Pos;
-my $r;
-my $OpSel1;
-my $OpSel2;
-my $OpSelDis1;
-my $OpSelDis2;
-my $CurDis=0;
-my $OpSel3;
-my $OpSel4;
-my $GData;
-my $cid;
-my $firstres;
-my $lastres;
-my $DiscFlag=0;
-my $HWN=0;
-
-my %Header = (0,"Problem Title",1,"#Stdnts",2,"Tries",3,"Mod",
- 4,"Mean",5,"#YES",6,"#yes",7,"%Wrng",8,"S.D.",
- 9,"Skew.",10,"DoDiff",11,"Map");
-# 9,"Skew.",10,"DoDiff",11,"Dis.F.",12,"Resourse URL");
-
-my %class = qw(
-);
-
-my @LS;
-my @LF;
-
-sub GetBin {
- my ($Index1,$Index2,$String,$C)=@_;
- my @step = 5;
- my @L=($C eq 'S') ? @LS : @LF;
- my $Count=$#L+1;
- $r->print("<br>zone $C ------ $String ");
- for(my $n=0;$n<$Count;$n++){
- my @t=split(/\:/,$L[$n]);
- $r->print("<br>$t[$Index1] $t[$Index2]");
- }
-}
-sub GetUniqe {
- my ($Index,$String,$C)=@_;
- my @step = 5;
- my @L=($C eq 'S') ? @LS : @LF;
- my $Count=$#L+1;
- my @List=();
- for(my $n=0;$n<$Count;$n++){
- my @t=split(/\:/,$L[$n]);
- push(@List,$t[$Index]);
- #$r->print("<br>$t[$Index]");
- }
- @List = sort NumSort(@List);
-
- $r->print("<br>zone $C ------ $String ");
- my $nIdx=0;
- my $nPrb=0;
- my %Proc;
- undef %Proc;
- while ( $nIdx < $Count ) {
- my $Focus=$List[$nIdx];
- my $Temp = $Focus;
- do {
- $nIdx++;
- $nPrb++;
- $Focus=$List[$nIdx];
- #$Proc{$name}=$Focus;
- } while ( $Focus == $Temp && $nIdx < $Count );
- $r->print("<br>$Temp --> $nPrb");
- $nPrb=0;
+sub CheckFormElement {
+ my ($cache, $ENVName, $cacheName, $default)=@_;
+
+ if(defined($ENV{'form.'.$ENVName})) {
+ $cache->{$cacheName} = $ENV{'form.'.$ENVName};
+ } elsif(!defined($cache->{$cacheName})) {
+ $cache->{$cacheName} = $default;
+ }
+
+ return;
+}
+
+sub ProcessFormData{
+ my ($cache)=@_;
+
+ $cache->{'reportKey'} = 'false';
+
+ &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+ ['sort','download','reportSelected',
+ 'StudentAssessmentStudent']);
+ &CheckFormElement($cache, 'Status', 'Status', 'Active');
+ &CheckFormElement($cache, 'postdata', 'reportSelected', 'Class list');
+ &CheckFormElement($cache, 'reportSelected', 'reportSelected',
+ 'Class list');
+ $cache->{'reportSelected'} =
+ &Apache::lonnet::unescape($cache->{'reportSelected'});
+ &CheckFormElement($cache, 'DownloadAll', 'DownloadAll', 'false');
+ &CheckFormElement($cache, 'sort', 'sort', 'fullname');
+ &CheckFormElement($cache, 'download', 'download', 'false');
+
+ if(defined($ENV{'form.CreateStudentAssessment'}) ||
+ defined($ENV{'form.NextStudent'}) ||
+ defined($ENV{'form.PreviousStudent'})) {
+ $cache->{'reportSelected'} = 'Student Assessment';
+ }
+ if(defined($ENV{'form.NextStudent'})) {
+ $cache->{'StudentAssessmentMove'} = 'next';
+ } elsif(defined($ENV{'form.PreviousStudent'})) {
+ $cache->{'StudentAssessmentMove'} = 'previous';
+ } else {
+ $cache->{'StudentAssessmentMove'} = 'selected';
+ }
+ &CheckFormElement($cache, 'StudentAssessmentStudent',
+ 'StudentAssessmentStudent', 'All Students');
+ $cache->{'StudentAssessmentStudent'} =
+ &Apache::lonnet::unescape($cache->{'StudentAssessmentStudent'});
+
+ if(defined($ENV{'form.Section'})) {
+ my @sectionsSelected = (ref($ENV{'form.Section'}) ?
+ @{$ENV{'form.Section'}} :
+ ($ENV{'form.Section'}));
+ $cache->{'sectionsSelected'} = join(':', @sectionsSelected);
+ } elsif(!defined($cache->{'sectionsSelected'})) {
+ $cache->{'sectionsSelected'} = $cache->{'sectionList'};
+ }
+
+ foreach (keys(%ENV)) {
+ if(/form\.Analyze:::/) {
+# $cache->{'reportSelected'} = 'Analyze';
+# $cache->{'reportKey'} = 'Problem Analysis';
+ my ($uri, $title, $part, $problem);
+ (undef, $uri, $title, $part, $problem)=split(':::', $_);
+ $cache->{'AnalyzeURI'} = $uri;
+ $cache->{'AnalyzeTitle'} = $title;
+ $cache->{'AnalyzePart'} = $part;
+ $cache->{'AnalyzeProblem'} = $problem;
+
+ &CheckFormElement($cache, 'Interval', 'Interval', '1');
+ }
}
- return %Proc;
-}
-sub GetUniq {
- my ($Index,$String)=@_;
- my @step = 5;
- my $Count=0;
- my @List=();
- my @temp=();
- foreach (keys(%DiscFac)){
- $Count++;
- my @temp1=split(/\:/,$_);
- @temp=($temp1[$Index],@temp1);
- push(@List,join(':',@temp));
- }
- @List = sort NumericSort(@List);
-
- $r->print("<br><br>zone ($Index) ------ $String ----- / $temp[3]");
- my $nIdx=0;
- my $nPrb=0;
- my %Proc;
- undef %Proc;
- while ( $nIdx < $Count ) {
- my ($Focus,$Dummy,$name)=split(/\:/,$List[$nIdx]);
- my $Temp = $Focus;
- $Proc{$name}=$Focus;
- do {
- $nIdx++;
- $nPrb++;
- ($Focus,$Dummy,$name)=split(/\:/,$List[$nIdx]);
- $Proc{$name}=$Focus;
- } while ( $Focus == $Temp && $nIdx < $Count );
- $r->print("<br>$Temp --> $nPrb");
- $nPrb=0;
+ return;
+
+ # Select page to display
+ if(defined($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.DoDiffGraph'})) {
+ $cache->{'GoToPage'} = 'DoDiffGraph';
+ } elsif(defined($ENV{'form.PercentWrongGraph'})) {
+ $cache->{'GoToPage'} = 'PercentWrongGraph';
+ } elsif(defined($ENV{'form.ActivityLog'})) {
+ $cache->{'GoToPage'} = 'ActivityLog';
+ } else {
+ $cache->{'GoToPage'} = 'Menu';
}
- return %Proc;
-}
-sub NumericSort {
- $a <=> $b;
+ &CheckFormElement($cache, 'Status', 'Status', 'Active');
+
+ return;
}
+=pod
-#------- Classification
-sub Classify {
- my $Count=0;
- my @List=();
-# foreach(keys %class){
-# $r->print("<br>$_ --> $class{$_}");
-# }
- # $DiscFac{($DisFactor.':'.$sname.':'.$ProbTot.':'.$TotalOpend.':'.
- # $TotalTries.':'.$ProbSolved.':'.$time)}=$Dis;
- @LS=();
- @LF=();
- my $cf=0;
- my $cs=0;
- foreach (keys(%DiscFac)){
- my @l=split(/\:/,$_);
- if ($class{$l[1]}){
- if( $class{$l[1]} == 4 ) {
- $cs++;
- push(@LS,('S:'.$l[6].':'.$l[0].':'.$l[5].':'.$l[4].':'.$l[3].':'.$class{$l[1]}));
- }
- elsif ( $class{$l[1]} < 3 ) {
- $cf++;
- push(@LF,('F:'.$l[6].':'.$l[0].':'.$l[5].':'.$l[4].':'.$l[3].':'.$class{$l[1]}));
- }
- }
- }
-
- $r->print("<br>zone successful");
- for(my $n=0;$n<$cs;$n++){
- $r->print('<br>'.$LS[$n]);
- }
-
- $r->print("<br>zone failed");
- for(my $n=0;$n<$cf;$n++){
- $r->print('<br>'.$LF[$n]);
- }
-
-# my %Disc = &GetUniqe(@List,5,"Discrimination Factor");
-# my %Opnd = &GetUniq(@List,3,"Total Opened");
-# my %Trys = &GetUniq(@Lsit4,"Total Tries");
-# my %Slvd = &GetUniq(5,"Problems Solved");
-
- # my (@L, $Index,$String)=@_;
-
- my %Time = &GetUniqe(1,"Time",'S');
- &GetUniqe(1,"Time",'F');
- &GetUniqe(2,"Discrimination Factor",'S');
- &GetUniqe(2,"Discrimination Factor",'F');
- &GetUniqe(3,"Solved",'S');
- &GetUniqe(3,"Solved",'F');
- &GetUniqe(4,"Tries",'S');
- &GetUniqe(4,"Tries",'F');
-
- &GetBin(1,2, " Time ... Discriminat",'S');
- &GetBin(1,2, " Time ... Discriminat",'F');
- &GetBin(1,3, " Time ... Solved",'S');
- &GetBin(1,3, " Time ... Solved",'F');
- &GetBin(1,4, " Time ... Tries",'S');
- &GetBin(1,4, " Time ... Tries",'F');
- &GetBin(2,3, " Discriminant ... Solved",'S');
- &GetBin(2,3, " Discriminant ... Solved",'F');
- &GetBin(2,4, " Discriminant ... Tries",'S');
- &GetBin(2,4, " Discriminant ... Tries",'F');
- &GetBin(3,4, " Solved ... Tries",'S');
- &GetBin(3,4, " solved ... Tries",'F');
-# foreach (keys(%Disc)) {
-# $r->print("<br>: $Disc{$_} --> $Slvd{$_}");
- # }
- # $r->print("<br>..........Discriminant ... Time................");
- ## foreach (keys(%Disc)) {
- # $r->print("<br>$Disc{$_} --> $Time{$_}");
- # }
- # $r->print("<br>..........Time ... Solved.......................");
- # foreach (keys(%Disc)) {
- # $r->print("<br>$Disc{$_} --> $Slvd{$_}");
- # }
-}
+=item &SortStudents()
-#------- Processing upperlist and lowerlist according to each problem
-sub ProcessDisc {
- my @List = @_;
- @List = sort (@List);
- my $Count = $#List+1;
- my $Prb;
- my @Dis;
- my $Slvd=0;
- my $tmp;
- my $Sum=0;
- my $nIdx=0;
- my $nStud=0;
- my %Proc;
- undef %Proc;
- while ($nIdx<$Count) {
- ($Prb,$tmp)=split(/\=/,$List[$nIdx]);
- @Dis=split(/\+/,$tmp);
- my $Temp = $Prb;
- do {
- $nIdx++;
- $nStud++;
- $Sum += $Dis[$CurDis];
- ($Prb,$tmp)=split(/\=/,$List[$nIdx]);
- @Dis=split(/\+/,$tmp);
- } while ( $Prb eq $Temp && $nIdx < $Count );
-# $Proc{$Temp}=$Sum.':'.$nStud;
- $Proc{$Temp}=($Sum/$nStud).':'.$nStud;
-# $r->print("$nIdx) $Temp --> ($nPrb) $Proc{$Temp} <br>");
- $Sum=0;
- $nStud=0;
- }
- return %Proc;
-}
+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.
-#------- Creating Discimination factor table
-sub DiscriminationTable {
- my $Count=0;
- foreach (keys(%DiscFac)){
- $Count++;
- }
- my $UpCnt = int(0.27*$Count);
- $r->print("<br><br>".
- "Current map: <b>\"$CurMap\"</b> ".
- "Current Section: <b>\"$CurSec\" </b> ".
- "Number of valid students: <b>$Count</b>".
- "<br>The <b>Upper 27%</b> has <b>$UpCnt</b> records.".
- " The <b>Lower 27%</b> has <b>$UpCnt</b> records <br>".
- "The Criterion of sorting the students: ".
- "<b>( Sum of Partial Credits Awarded / ".
- "Total Number of Tries )</b>".
- " <br><br>");
- $r->rflush();
- my $low=0;
- my $up=$Count-$UpCnt;
- my @UpList=();
- my @LowList=();
- $Count=0;
- foreach my $key (sort(keys(%DiscFac))){
- $Count++;
-# $r->print("$Count) $key <br>");
-
- if ($low < $UpCnt || $Count > $up) {
- $low++;
- my $str=$DiscFac{$key};
-# $r->print("$Count) $str <br>");
- foreach(split(/\:/,$str)){
- if ($_) {
- if ($low<$UpCnt){push(@LowList,$_);}
- else {push(@UpList,$_);}
- }
- }
- }
- }
-
- my %Up=&ProcessDisc(@UpList);
- my %Low=&ProcessDisc(@LowList);
-
- my @list = ();
- my $Useful;
- my $UnUseful;
- $p_count = 0;
-
- foreach my $key( keys %CachData) {
- my @Temp=split(/\:/,$CachData{$key});
- ($UnUseful,$Useful)=split(/\>/,$Temp[0]);
- $list[$p_count]=$Useful.'&'.$CachData{$key};
- $p_count++;
- }
-
- @list = sort MySort (@list);
-
- my $Result = "\n".'<table border=2>';
- $Result .= "\n".'<tr><th>P#</th>';
- $Result .= "\n".'<th>'.$Header{0}.'</th>';
- $Result .= "\n".'<th>'.'Discrimination Factor'.'</th>';
- $Result .= "\n".'<th>'.'%Upper Award'.'</th>';
- $Result .= "\n".'<th>'.'%Lower Award'.'</th>';
- $Result .= "\n".'<th>'.'Upper Records'.'</th>';
- $Result .= "\n".'<th>'.'Lower Records'.'</th>';
- $Result .= "\n".'<th>'.'%Degree of Difficulty'.'</th>';
- $Result .= "\n".'</tr>';
- $r->print( $Result );
-
- for ( my $nIdx = 0; $nIdx < $p_count; $nIdx++ ) {
- my( $Pre, $Post ) = split(/\&/,$list[$nIdx]);
- my ($Temp,$MxTries,$StdNo,$TotalTries,$YES,$Override,
- $Wrng,$Avg,$SD,$Sk,$DoD,$res,$Prob)=split(/\:/,$Post);
- my ($UpDis,$UpNo)=split(/\:/,$Up{$Prob});
- my ($LwDis,$LwNo)=split(/\:/,$Low{$Prob});
- $UpNo = ($UpNo) ? $UpNo : 0;
- $LwNo = ($LwNo) ? $LwNo : 0;
- my $U_Dis = sprintf("%.4f", $UpDis)*100;
- my $L_Dis = sprintf("%.4f", $LwDis)*100;
- my $DisFac = $UpDis - $LwDis;
- my $_Dis = sprintf("%.4f", $DisFac)*100;
- $r->print( "\n".'<tr>'.
- "\n".'<td>'.($nIdx+1).'</td>'.
- "\n".'<td>'.$Temp.'</td>'.
- "\n".'<td>'.$_Dis.'</td>'.
- "\n".'<td>'.$U_Dis.'</td>'.
- "\n".'<td>'.$L_Dis.'</td>'.
- "\n".'<td>'.$UpNo.'</td>'.
- "\n".'<td>'.$LwNo.'</td>'.
- "\n".'<td>'.$DoD.'</td>'.
- "\n".'</tr>' );
- }
- $r->print("\n".'</table>');
- $r->rflush();
-}
+=over 4
-sub CreateDiscFac {
+Input: $students, $CacheData
- my $CacheDB = "/home/httpd/perl/tmp/$ENV{'user.name'}".
- "_$ENV{'user.domain'}_$cid\_statistics.db";
- my $CachDisFac = "/home/httpd/perl/tmp/$ENV{'user.name'}".
- "_$ENV{'user.domain'}_$cid\_DiscFactor.db";
-
- my $ptr='';
-# $ptr .= '<br><b> Discrimination Criterion: </b>'."\n".
-# '<select name="DisType"> <option '.$OpSelDis1.'> Total Numebr of Correct Answers </option>'."\n".
-# '<option '.$OpSelDis2.'></option>Sum of Partial Awarded Credits / Total Number of Tries </select> '."\n";
- $ptr .= '<br><input type="submit" name="sort" '.
- 'value="Recalculate Discrimintion Factor" />';
- $r->print($ptr);
-
- if ((-e "$CacheDB")&&
- ($ENV{'form.sort'} ne 'Recalculate Discrimintion Factor')) {
- if (tie(%CachData,'GDBM_File',"$CacheDB",&GDBM_READER,0640)) {
- tie(%DiscFac,'GDBM_File',$CachDisFac,&GDBM_READER,0640);
- #&DiscriminationTable();
- &Classify();
- }
- else {$r->print("Unable to tie hash to db file");}
- }
- else {
- if (tie(%CachData,'GDBM_File',$CacheDB,&GDBM_WRCREAT,0640)) {
- tie(%DiscFac,'GDBM_File',$CachDisFac,&GDBM_WRCREAT,0640);
- foreach (keys %CachData) {delete $CachData{$_};}
- foreach (keys %DiscFac) {delete $DiscFac{$_};}
- $DiscFlag=1;
- &Build_Statistics();
- $DiscFlag=0;
- &DiscriminationTable();
- }
- else {$r->print("Unable to tie hash to db file");}
- }
- untie(%CachData);
- untie(%DiscFac);
-}
-
-
-# ------ Create different Student Report
-sub StudentReport {
- my ($sname,$sdom)=@_;
- if ( $sname eq 'All Students' ) {
- $r->print( '<h3><font color=blue>WARNING:
- Please select a student</font></h3>' );
- return;
- }
- my $shome=&Apache::lonnet::homeserver( $sname,$sdom );
- my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.':'.$cid,$shome );
- my %result = ();
- my $ResId;
- my $Code;
- my $Tries;
- my $TotalTries = 0;
- my $ParCr = 0;
- my $Wrongs;
- my %TempHash;
- my $Version;
- my $LatestVersion;
- my $PtrTry='';
- my $PtrCod='';
- my $SetNo=0;
- my $Str = "\n".'<table border=2>'.
- "\n".'<tr>'.
- "\n".'<th> # </th>'.
- "\n".'<th> Set Title </th>'.
- "\n".'<th> Results </th>'.
- "\n".'<th> Tries </th>'.
- "\n".'</tr>';
- unless ($reply=~/^error\:/) {
- map {
- my ($name,$value)=split(/\=/,&Apache::lonnet::unescape($_));
- $result{$name}=$value;
- } split(/\&/,$reply);;
- foreach $ResId (@cols) {
- if ( !$ResId ) {
- my $Set=&Apache::lonnet::declutter($hash{'map_id_'.$1});
- if ( $Set ) {
- $SetNo++;
- $Str .= "\n"."<tr>".
- "\n"."<td> $SetNo </td>".
- "\n"."<td> $Set </td>".
- "\n"."<td> $PtrCod </td>".
- "\n"."<td> $PtrTry</td>".
- "\n"."</tr>";
- }
- $PtrTry='';
- $PtrCod='';
- next;
- }
- $ResId=~/(\d+)\.(\d+)/;
- my $Map = &Apache::lonnet::declutter( $hash{'map_id_'.$1} );
- if ( $CurMap ne 'All Maps' ) {
- my ( $ResMap, $NameMap ) = split(/\=/,$CurMap);
- if ( $Map ne $ResMap ) { next; }
- }
- my $meta=$hash{'src_'.$ResId};
- my $PartNo = 0;
- undef %TempHash;
- map {
- if ($_=~/^stores\_(\d+)\_tries$/) {
- my $Part=&Apache::lonnet::metadata($meta,$_.'.part');
- if ( $TempHash{"$Part"} eq '' ) {
- $TempHash{"$Part"} = $Part;
- $TempHash{$PartNo}=$Part;
- $TempHash{"$Part.Code"} = '-';
- $PartNo++;
- }
- }
- } split(/\,/,&Apache::lonnet::metadata($meta,'keys'));
-
- my $Prob = $Map.'___'.$2.'___'.
- &Apache::lonnet::declutter( $hash{'src_'.$ResId} );
- $Code='U';
- $Tries = 0;
- $Wrongs = 0;
- $LatestVersion = $result{"version:$Prob"};
-
- if ( $LatestVersion ) {
- for ( my $Version=1; $Version<=$LatestVersion; $Version++ ) {
- my $vkeys = $result{"$Version:keys:$Prob"};
- my @keys = split(/\:/,$vkeys);
-
- foreach my $Key (@keys) {
- if (($Key=~/\.(\w+)\.solved$/) && ($Key!~/^\d+\:/)) {
- my $Part = $1;
- $Tries = $result{"$Version:$Prob:resource.$Part.tries"};
- $TempHash{"$Part.Tries"} = ($Tries) ? $Tries : 0;
- $TotalTries += $Tries;
- my $Val = $result{"$Version:$Prob:resource.$Part.solved"};
- if ( $Val eq 'correct_by_student' )
- { $Wrongs = $Tries - 1; $Code = 'Y'; }
- elsif ( $Val eq 'correct_by_override' )
- { $Wrongs = $Tries - 1; $Code = 'y'; }
- elsif ( $Val eq 'incorrect_attempted' ||
- $Val eq 'incorrect_by_override' )
- { $Wrongs = $Tries; $Code = 'N'; }
- $TempHash{"$Part.Code"} = $Code;
- $TempHash{"$Part.Wrongs"} = $Wrongs;
- }
- }
- }
- for ( my $n = 0; $n < $PartNo; $n++ ) {
- my $part = $TempHash{$n};
- if ($PtrTry ne '') {$PtrTry .= ',';}
- $PtrTry .= "$TempHash{$part.'.Tries'}";
- $PtrCod .= "$TempHash{$part.'.Code'}";
- }
- }
- else {
- for(my $n=0; $n<$PartNo; $n++) {
- if ($PtrTry ne '') {$PtrTry .= ',';}
- $PtrTry .= "0";
- $PtrCod .= "-";
- }
- }
+$students: A array pointer to a list of students (username:domain)
+
+$CacheData: A pointer to the hash tied to the cached data
+
+Output: \@order
+
+@order: An ordered list of students (username:domain)
+
+=back
+
+=cut
+
+sub SortStudents {
+ my ($cache)=@_;
+
+ my @students = split(':::',$cache->{'NamesOfStudents'});
+ my @sorted1Students=();
+ foreach (@students) {
+ if($cache->{'Status'} eq 'Any' ||
+ $cache->{$_.':Status'} eq $cache->{'Status'}) {
+ push(@sorted1Students, $_);
}
}
- $Str .= "\n".'</table>';
- $r->print($Str);
- $r->rflush();
+
+ my $sortBy = '';
+ if(defined($cache->{'sort'})) {
+ $sortBy = ':'.$cache->{'sort'};
+ }
+ my @order = sort { $cache->{$a.$sortBy} cmp $cache->{$b.$sortBy} ||
+ $cache->{$a.':fullname'} cmp $cache->{$b.':fullname'} }
+ @sorted1Students;
+
+ return \@order;
}
+=pod
+=item &SpaceColumns()
+Determines the width of all the columns in the chart. It is based on
+the max of the data for that column and its header.
-# ------------------------------------------- Prepare Statistics Table
-sub PreStatTable {
- my $CacheDB = "/home/httpd/perl/tmp/$ENV{'user.name'}".
- "_$ENV{'user.domain'}_$cid\_statistics.db";
- my $GraphDB = "/home/httpd/perl/tmp/$ENV{'user.name'}".
- "_$ENV{'user.domain'}_$cid\_graph.db";
- my $CachDisFac = "/home/httpd/perl/tmp/$ENV{'user.name'}".
- "_$ENV{'user.domain'}_$cid\_DiscFactor.db";
- $r->print('<br><input type="submit" name="sort" value="Recalculate Statistics" />');
-
- my $Ptr = '';
-
- $Ptr .= '<br><b> Sorting Type: </b>'."\n".
- '<select name="order"> <option '.$OpSel1.' >Ascending</option>'."\n".
- '<option '.$OpSel2.'>Descending</option> </select> '."\n";
- $Ptr .= ' ';
- $Ptr .= '<input type="submit" name="sort" value="DoDiff Graph" />'."\n";
- $Ptr .= ' ';
- $Ptr .= '<input type="submit" name="sort" value="%Wrong Graph" />'."\n";
-
- $Ptr .= '<pre>'.
- ' #Stdnts: Total Number of Students opened the problem.<br>'.
- ' Tries : Total Number of Tries for solving the problem.<br>'.
- ' Mod : Maximunm Number of Tries for solving the problem.<br>'.
- ' Mean : Average Number of the tries. [ Tries / #Stdns ]<br>'.
- ' #YES : Number of students solved the problem correctly.<br>'.
- ' #yes : Number of students solved the problem by override.<br>'.
- ' %Wrng : Percentage of students tried to solve the problem but'.
- ' still incorrect. [ 100*((#Stdnts-(#YES+#yes))/#Stdnts) ]<br>'.
- ' S.D. : Standard Deviation of the tries.'.
- '[ sqrt(sum((Xi - Mean)^2)) / (#Stdnts-1)'.
- ' where Xi is every student\'s tries ]<br>'.
- ' Skew. : Skewness of the students tries.'.
- ' [ (sqrt( sum((Xi - Mean)^3) / #Stdnts)) / (S.D.^3) ]<br>'.
-# ' DoDiff : Degree of Difficulty of the problem. [ Tries/(#YES+#yes+0.1) ]<br>'.
- ' DoDiff : Degree of Difficulty of the problem. [ 1 - ((#YES+#yes) / Tries) ]<br>'.
-# ' Dis.F. : Discrimination Factor. [ Sum of Partial Credits Awarded / Total Number of Tries in %27 upper and lower students]</b>'.
- '</pre>';
-
- $r->print($Ptr);
- $r->rflush();
-
- my $Result = "\n".'<table border=2>';
- $Result .= '<tr><th>P#</th>'."\n";
- for ( my $nIdx=0; $nIdx < 12; $nIdx++ ) {
- $Result .= '<th>'.'<input type="submit" name="sort" value="'.
- $Header{$nIdx}.'" />'.'</th>'."\n";
- }
- $Result .= "\n".'</tr>'."\n";
- $r->print( $Result );
- $r->rflush();
+=over 4
- if ((-e "$CacheDB")&&($ENV{'form.sort'} ne 'Recalculate Statistics')) {
- if (tie(%CachData,'GDBM_File',"$CacheDB",&GDBM_READER,0640)) {
- tie(%GraphDat,'GDBM_File',$GraphDB,&GDBM_WRCREAT,0640);
- &Cache_Statistics();
- }
- else {
- $r->print("Unable to tie hash to db file");
- }
+Input: $students, $studentInformation, $headings, $ChartDB
+
+$students: An array pointer to a list of students (username:domain)
+
+$studentInformatin: The type of data for the student information. It is
+used as part of the key in $CacheData.
+
+$headings: The name of the student information columns.
+
+$ChartDB: The name of the cache database which is opened for read/write.
+
+Output: None - All data stored in cache.
+
+=back
+
+=cut
+
+sub SpaceColumns {
+ my ($students,$studentInformation,$headings,$cache)=@_;
+
+ # Initialize Lengths
+ for(my $index=0; $index<(scalar @$headings); $index++) {
+ my @titleLength=split(//,$headings->[$index]);
+ $cache->{$studentInformation->[$index].':columnWidth'}=
+ scalar @titleLength;
}
- else {
- if (tie(%CachData,'GDBM_File',$CacheDB,&GDBM_WRCREAT,0640)) {
- tie(%DiscFac,'GDBM_File',$CachDisFac,&GDBM_WRCREAT,0640);
- tie(%GraphDat,'GDBM_File',$GraphDB,&GDBM_WRCREAT,0640);
- foreach (keys %DiscFac) {delete $CachData{$_};}
- foreach (keys %CachData) {delete $CachData{$_};}
- $DiscFlag=0;
- &Build_Statistics();
- }
- else {
- $r->print("Unable to tie hash to db file");
+
+ foreach my $name (@$students) {
+ foreach (@$studentInformation) {
+ my @dataLength=split(//,$cache->{$name.':'.$_});
+ my $length=(scalar @dataLength);
+ if($length > $cache->{$_.':columnWidth'}) {
+ $cache->{$_.':columnWidth'}=$length;
+ }
}
}
- #$r->print('Total instances of the problems : '.($p_count*($#students+1)));
- untie(%CachData);
- untie(%GraphDat);
- untie(%DiscFac);
-
- $r->print("\n".'</table>'."\n");
- $r->rflush();
+ return;
}
+sub PrepareData {
+ my ($c, $cacheDB, $studentInformation, $headings)=@_;
+
+ # Test for access to the cache data
+ my $courseID=$ENV{'request.course.id'};
+ my $isRecalculate=0;
+ if(defined($ENV{'form.Recalculate'})) {
+ $isRecalculate=1;
+ }
-# ------------------------------------- Find the section of student in a course
+ my $isCached = &Apache::loncoursedata::TestCacheData($cacheDB,
+ $isRecalculate);
+ if($isCached < 0) {
+ return "Unable to tie hash to db file.";
+ }
-sub usection {
- my ($udom,$unam,$courseid)=@_;
- $courseid=~s/\_/\//g;
- $courseid=~s/^(\w)/\/$1/;
- map {
- my ($key,$value)=split(/\=/,$_);
- $key=&Apache::lonnet::unescape($key);
- if ($key=~/^$courseid(?:\/)*(\w+)*\_st$/) {
- my $section=$1;
- if ($key eq $courseid.'_st') { $section=''; }
- my ($dummy,$end,$start)=split(/\_/,&Apache::lonnet::unescape($value));
- $section=($section) ? $section : '(none)';
- $section=(int($section)) ? int($section) : $section;
-# $r->print($unam.'...'.$section.'<br>');
- return $section;
+ # Download class list information if not using cached data
+ my %cache;
+ unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT,0640)) {
+ return "Unable to tie hash to db file.";
+ }
+
+ if(!$isCached) {
+ my $processTopResourceMapReturn=
+ &Apache::loncoursedata::ProcessTopResourceMap(\%cache, $c);
+ if($processTopResourceMapReturn ne 'OK') {
+ untie(%cache);
+ return $processTopResourceMapReturn;
}
- } split(/\&/,&Apache::lonnet::reply('dump:'.$udom.':'.$unam.':roles',
- &Apache::lonnet::homeserver($unam,$udom)));
- return '';
-}
+ }
+ if($c->aborted()) {
+ untie(%cache);
+ return 'aborted';
+ }
-# ------ Dump the Student's DB file and handling the data for statistics table
+ my $classlist=&Apache::loncoursedata::DownloadClasslist($courseID,
+ $cache{'ClasslistTimestamp'},
+ $c);
+ foreach (keys(%$classlist)) {
+ if(/^(con_lost|error|no_such_host)/i) {
+ untie(%cache);
+ return "Error getting student data.";
+ }
+ }
-sub ExtractStudentData {
- my ($student,$coid)=@_;
- my ($sname,$sdom) = split( /\:/, $student );
- my $shome=&Apache::lonnet::homeserver( $sname,$sdom );
- my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.':'.$coid,$shome );
- my %result = ();
- my $ResId;
- my $Dis = '';
- my $Code;
- my $Tries;
- my $ParCr;
- my $TotalTries = 0;
- my $TotalOpend = 0;
- my $ProbSolved = 0;
- my $ProbTot = 0;
- my $TimeTot = 0;
- my $TotParCr = 0;
- my $Wrongs;
- my %TempHash;
- my $Version;
- my $LatestVersion;
- my $SecLimit;
- my $MapLimit;
- unless ($reply=~/^error\:/) {
- map {
- my ($name,$value)=split(/\=/,&Apache::lonnet::unescape($_));
- $result{$name}=$value;
-#$r->print($name.'='.$value.'<br>');
- } split(/\&/,$reply);
- foreach $ResId (@cols) {
- if ( !$ResId ) { next; }
- $ResId=~/(\d+)\.(\d+)/;
- my $Map = &Apache::lonnet::declutter( $hash{'map_id_'.$1} );
- if ( $CurMap ne 'All Maps' ) {
- my ( $ResMap, $NameMap ) = split(/\=/,$CurMap);
- if ( $Map ne $ResMap ) { next; }
- }
- my $meta=$hash{'src_'.$ResId};
- my $PartNo = 0;
- $Dis .= ':';
- undef %TempHash;
- map {
- if ($_=~/^stores\_(\d+)\_tries$/) {
- my $Part=&Apache::lonnet::metadata($meta,$_.'.part');
- if ( $TempHash{"$Part"} eq '' ) {
- $TempHash{"$Part"} = $Part;
- $TempHash{$PartNo}=$Part;
- $TempHash{"$Part.Code"} = 'U';
- $PartNo++;
- }
- }
- } split(/\,/,&Apache::lonnet::metadata($meta,'keys'));
-
- my $Prob = $Map.'___'.$2.'___'.
- &Apache::lonnet::declutter( $hash{'src_'.$ResId} );
- $Code='U';
- $Tries = 0;
- $ParCr = 0;
- $Wrongs = 0;
- $LatestVersion = $result{"version:$Prob"};
-
- if ( $LatestVersion ) {
- for ( my $Version=1; $Version<=$LatestVersion; $Version++ ) {
- my $vkeys = $result{"$Version:keys:$Prob"};
- my @keys = split(/\:/,$vkeys);
-
- foreach my $Key (@keys) {
- if (($Key=~/\.(\w+)\.solved$/) && ($Key!~/^\d+\:/)) {
- my $Part = $1;
- $Tries = $result{"$Version:$Prob:resource.$Part.tries"};
- $ParCr = $result{"$Version:$Prob:resource.$Part.awarded"};
- my $Time = $result{"$Version:$Prob:timestamp"};
- $TempHash{"$Part.Time"} = ($Time) ? $Time : 0;
- $TempHash{"$Part.Tries"} = ($Tries) ? $Tries : 0;
- $TempHash{"$Part.ParCr"} = ($ParCr) ? $ParCr : 0;
- $TotalTries += $TempHash{"$Part.Tries"};
- $TotParCr += $TempHash{"$Part.ParCr"};
-#$r->print($Version.'---'.$Prob.'==='.$Time.'<br>');
- my $Val = $result{"$Version:$Prob:resource.$Part.solved"};
- if ( $Val eq 'correct_by_student' )
- { $Wrongs = $Tries - 1; $Code = 'C'; }
- elsif ( $Val eq 'correct_by_override' )
- { $Wrongs = $Tries - 1; $Code = 'O'; }
- elsif ( $Val eq 'incorrect_attempted' ||
- $Val eq 'incorrect_by_override' )
- { $Wrongs = $Tries; $Code = 'I'; }
- $TempHash{"$Part.Code"} = $Code;
- $TempHash{"$Part.Wrongs"} = $Wrongs;
- }
- }
- }
- for ( my $n = 0; $n < $PartNo; $n++ ) {
- my $part = $TempHash{$n};
- my $Yes = 0;
- if ( $TempHash{$part.'.Code'} eq 'C' ||
- $TempHash{$part.'.Code'} eq 'O' )
- {$ProbSolved++;$Yes=1;}
- my $ptr = "$hash{'title_'.$ResId}";
- if ( $PartNo > 1 ) {
- $ptr .= " (part $part)";
- $Dis .= ':';
- }
- my $Fac = ($TempHash{"$part.Tries"}) ?
- ($TempHash{"$part.ParCr"}/$TempHash{"$part.Tries"}) : 0;
- my $DisF;
- if ( $Fac > 0 && $Fac < 1 ) {
- $DisF = sprintf( "%.4f", $Fac );
- }
- else {$DisF = $Fac;}
-# $DisF .= '+'.$TempHash{"$part.Time"};
- $TimeTot += $TempHash{"$part.Time"};
- $Dis .= $ptr.'*'.$ResId.'='.$DisF.'+'.$Yes;
- $ptr .= "*$ResId:$TempHash{$part.'.Tries'}".
- ":$TempHash{$part.'.Wrongs'}".
- ":$TempHash{$part.'.Code'}";
-#$r->print($sname.' -- '.$ptr.'--- timestamp='.$TempHash{"$part.Time"}.'<br>');
- push (@list, $ptr);
- $TotalOpend++;
- $ProbTot++;
- }
+ if($c->aborted()) {
+ untie(%cache);
+ return 'aborted';
+ }
+
+ # Active is a temporary solution, remember to change
+ Apache::loncoursedata::ProcessClasslist(\%cache,$classlist,$courseID,$c);
+ if($c->aborted()) {
+ untie(%cache);
+ return 'aborted';
+ }
+
+ &ProcessFormData(\%cache);
+ my $students = &SortStudents(\%cache);
+ &SpaceColumns($students, $studentInformation, $headings, \%cache);
+ $cache{'updateTime:columnWidth'}=24;
+
+ if($cache{'download'} ne 'false') {
+ my $who = $cache{'download'};
+ my $courseData =
+ &Apache::loncoursedata::DownloadCourseInformation(
+ $who, $courseID,
+ $cache{$who.':lastDownloadTime'});
+ &Apache::loncoursedata::ProcessStudentData(\%cache, $courseData, $who);
+ $cache{'download'} = 'false';
+ } elsif($cache{'DownloadAll'} ne 'false') {
+ my @allStudents;
+ if($cache{'DownloadAll'} eq 'sorted') {
+ @allStudents = @$students;
+ } else {
+ @allStudents = split(':::', $cache{'NamesOfStudents'});
+ }
+ foreach (@allStudents) {
+ my $courseData =
+ &Apache::loncoursedata::DownloadCourseInformation(
+ $_, $courseID,
+ $cache{$_.':lastDownloadTime'});
+ &Apache::loncoursedata::ProcessStudentData(\%cache, $courseData,
+ $_);
+ if($c->aborted()) {
+ untie(%cache);
+ return 'aborted';
}
- else {
- for(my $n=0; $n<$PartNo; $n++) {
- push (@list, "$hash{'title_'.$ResId}*$ResId:0:0:U");
- $ProbTot++;
- }
- }
}
- if ( $TotalTries ) {
- my $DisFac = ( $TotalTries ) ? ($TotParCr/$TotalTries) : 0;
-# my $DisFactor = int(sprintf( "%.4f", $DisFac ) * 100);
- my $DisFactor = sprintf( "%.4f", $DisFac );
- my $time;
- if ($ProbSolved){
- $time = int(($TimeTot/$ProbSolved)/10000000);
- }
- $DiscFac{($DisFactor.':'.$sname.':'.$ProbTot.':'.$TotalOpend.':'.
- $TotalTries.':'.$ProbSolved.':'.$time)}=$Dis;
-#$r->print($DisFactor.$sname.'<br> --- Dis= '.$Dis.'<br>');
- }
+ $cache{'DownloadAll'} = 'false';
}
- #$r->print($sname.' PrCr= '.$TotParCr.' Slvd= '.$ProbSolved.' Tries='.$TotalTries.'<br>');
-}
-
-# ------------------------------------------------------------ Build page table
-sub tracetable {
- my ($rid,$beenhere)=@_;
- $rid=~/(\d+)\.(\d+)/;
- $maps{&Apache::lonnet::declutter($hash{'map_id_'.$1})}='';#$hash{'title_'.$rid};
- unless ($beenhere=~/\&$rid\&/) {
- $beenhere.=$rid.'&';
- if (defined($hash{'is_map_'.$rid})) {
- my $cmap=$hash{'map_type_'.$hash{'map_pc_'.$hash{'src_'.$rid}}};
- if ( $cmap eq 'sequence' || $cmap eq 'page' ) {
- $cols[$#cols+1]=0;
- $HWN++;
- $mapsort[$HWN]=$rid.$hash{'title_'.$rid};
- #$maps{&Apache::lonnet::declutter($hash{'src_'.$rid})}=
- # $hash{'title_'.$rid};
- }
- if ((defined($hash{'map_start_'.$hash{'src_'.$rid}})) &&
- (defined($hash{'map_finish_'.$hash{'src_'.$rid}}))) {
- my $frid=$hash{'map_finish_'.$hash{'src_'.$rid}};
-
- &tracetable($hash{'map_start_'.$hash{'src_'.$rid}},
- '&'.$frid.'&');
-
- if ($hash{'src_'.$frid}) {
- if ($hash{'src_'.$frid}=~
- /\.(problem|exam|quiz|assess|survey|form)$/) {
- $cols[$#cols+1]=$frid;
- $mapsort[$HWN] .= '&'.$frid;
- }
- }
- }
- } else {
- if ($hash{'src_'.$rid}) {
- if ($hash{'src_'.$rid}=~
- /\.(problem|exam|quiz|assess|survey|form)$/) {
- $cols[$#cols+1]=$rid;
- $mapsort[$HWN] .= '&'.$rid;
- }
- }
- }
- if (defined($hash{'to_'.$rid})) {
- map {
- &tracetable($hash{'goesto_'.$_},$beenhere);
- } split(/\,/,$hash{'to_'.$rid});
- }
+ if($c->aborted()) {
+ untie(%cache);
+ return 'aborted';
}
-}
-sub MySort {
- if ( $Pos > 0 && $Pos < 11 ) {
- if ($ENV{'form.order'} eq 'Descending') {$b <=> $a;}
- else { $a <=> $b; }
- }
- else {
- if ($ENV{'form.order'} eq 'Descending') {$b cmp $a;}
- else { $a cmp $b; }
- }
+ untie(%cache);
+
+ return ('OK', $students);
}
-sub Build_Statistics {
+
+# Create progress
+sub Create_PrgWin {
+ my ($r)=@_;
$r->print(<<ENDPOP);
-<script>
+ <script>
popwin=open('','popwin','width=400,height=100');
- popwin.document.writeln('<html><body bgcolor="#8cee8c">'+
+ 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>
+ </script>
ENDPOP
$r->rflush();
-# ---------------------------- Gathering the Data of students' tries
- my $index;
- for ($index=0;$index<=$#students;$index++) {
-#----------- update progress
- $r->print('<script>popwin.document.popremain.remaining.value="'.
- 'Computing '.($index+1).'/'.($#students+1).': '.
- $students[$index].'";</script>');
- $r->rflush();
-
- &ExtractStudentData($students[$index],$cid);
- }
-#--------------------- close Progress Line
- $r->print('<script>popwin.close()</script>');
- $r->rflush();
-# -------------------- sorting the Data
- @list = sort(@list);
- $OpSel2='';
- $OpSel1='selected';
-
- $p_count = 0;
- my $nIdx = 0;
- my $dummy;
- my $p_val;
- my $ResId;
- my $NoElements = $#list + 1;
-#-------------------------------- loop for data representation
- while ( $nIdx < $NoElements ) {
- my %storestats=();
- my ($Prob,$Tries,$Wrongs,$Code)=split(/\:/,$list[$nIdx]);
- my $Temp = $Prob;
- my $MxTries = 0;
- my $TotalTries = 0;
- my $YES = 0;
- my $Incorrect = 0;
- my $Override = 0;
- my $StdNo = 0;
- my @StdLst;
- do {
- $nIdx++;
- $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' ) { $StdNo--; }
- ($Prob,$Tries,$Wrongs,$Code)=split(/\:/,$list[$nIdx]);
- } while ( $Prob eq $Temp && $nIdx < $NoElements );
-
- $p_count++;
-
- ($Temp,$ResId)=split(/\*/,$Temp);
-
- $Temp = '<a href="'.$hash{'src_'.$ResId}.'" target="_blank">'.$Temp.'</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;
- }
-#----------------- 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 );
-
- $CachData{($p_count-1)}=$Temp.':'.$StdNo.':'.$TotalTries.':'.
- $MxTries.':'.$Avg.':'.$YES.':'.
- $Override.':'.$Wrng.':'.$SD.':'.
- $Sk.':'.$DoD.':'.$Map.':'.$Prob;
-
- $urlres=~/^(\w+)\/(\w+)/;
- if ($StdNo) {
- &Apache::lonnet::put('resevaldata',\%storestats,$1,$2);
- }
-
-#-------------------------------- Row of statistical table
- if ( $DiscFlag == 0 ) {
- $r->print( "\n".'<tr>'.
- "\n".'<td>'.$p_count.'</td>'.
- "\n".'<td>'.$Temp.'</td>'.
- "\n".'<td>'.$StdNo.'</td>'.
- "\n".'<td>'.$TotalTries.'</td>'.
- "\n".'<td>'.$MxTries.'</td>'.
- "\n".'<td>'.$Avg.'</td>'.
- "\n".'<td>'.$YES.'</td>'.
- "\n".'<td>'.$Override.'</td>'.
- "\n".'<td>'.$Wrng.'</td>'.
- "\n".'<td>'.$SD.'</td>'.
- "\n".'<td>'.$Sk.'</td>'.
- "\n".'<td>'.$DoD.'</td>'.
- "\n".'<td>'.$Map.'</td>'.
- "\n".'</tr>' );
- $GraphDat{$nIdx}=$DoD.':'.$Wrng;
- }
- }
}
-
-sub Cache_Statistics {
- my @list = ();
- my $Useful;
- my $UnUseful;
- my %myHeader = reverse( %Header );
- $Pos = $myHeader{$ENV{'form.sort'}};
- $p_count = 0;
-
- foreach my $key( keys %CachData) {
- my @Temp=split(/\:/,$CachData{$key});
- if ( $Pos == 0 || $Pos == 11 ) {
- ($UnUseful,$Useful)=split(/\>/,$Temp[$Pos]);
- }
- else {
- $Useful = $Temp[$Pos];
- }
- $list[$p_count]=$Useful.'&'.$CachData{$key};
- $p_count++;
- }
-
- @list = sort MySort (@list);
-
- for ( my $nIdx = 0; $nIdx < $p_count; $nIdx++ ) {
- my( $Pre, $Post ) = split(/\&/,$list[$nIdx]);
- my ($Temp,$StdNo,$TotalTries,$MxTries,$Avg,$YES,
- $Override,$Wrng,$SD,$Sk,$DoD,$res,$Prob)=split(/\:/,$Post);
- $r->print( "\n".'<tr>'.
- "\n".'<td>'.($nIdx+1).'</td>'.
- "\n".'<td bgcolor="#FFFFFF">'.$Temp.'</td>'.
- "\n".'<td>'.$StdNo.'</td>'.
- "\n".'<td>'.$TotalTries.'</td>'.
- "\n".'<td>'.$MxTries.'</td>'.
- "\n".'<td>'.$Avg.'</td>'.
- "\n".'<td>'.$YES.'</td>'.
- "\n".'<td>'.$Override.'</td>'.
- "\n".'<td>'.$Wrng.'</td>'.
- "\n".'<td>'.$SD.'</td>'.
- "\n".'<td>'.$Sk.'</td>'.
- "\n".'<td>'.$DoD.'</td>'.
- "\n".'<td>'.$res.'</td>'.
- "\n".'</tr>' );
- $GraphDat{$nIdx}=$DoD.':'.$Wrng;
- }
-}
-
-# ------------------------------------------- Prepare data for Graphical chart
-
-sub GetGraphData {
- my $Tag = shift;
- my $Col;
- my $data='';
- my $count = 0;
- my $Max = 0;
- my $cid=$ENV{'request.course.id'};
- my $GraphDB = "/home/httpd/perl/tmp/$ENV{'user.name'}".
- "_$ENV{'user.domain'}_$cid\_graph.db";
- foreach (keys %GraphDat) {delete $GraphDat{$_};}
- if (-e "$GraphDB") {
- if (tie(%GraphDat,'GDBM_File',"$GraphDB",&GDBM_READER,0640)) {
- if ( $Tag eq 'DoDiff Graph' ) {
- $Tag = 'Degree-of-Difficulty';
- $Col = 0;
- }
- else {
- $Tag = '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++;
- }
- untie(%GraphDat);
- my $Course = $ENV{'course.'.$cid.'.description'};
- $Course =~ s/\ /"_"/eg;
- $GData=$Course.'&'.$Tag.'&'.$Max.'&'.$count.'&'.$data;
-
- }
- else {
- $r->print("Unable to tie hash to db file");
- }
- }
+# update progress
+sub Update_PrgWin {
+ my ($totalStudents,$index,$name,$r)=@_;
+ $r->print('<script>popwin.document.popremain.remaining.value="'.
+ 'Computing '.$index.'/'.$totalStudents.': '.
+ $name.'";</script>');
+ $r->rflush();
}
-
-sub initial {
-# --------------------------------- Initialize the global varaibles
- undef @students;
- undef @cols;
- undef %maps;
- undef %section;
- undef %StuBox;
- undef @list;
- undef %CachData;
- undef %GraphDat;
- undef %DiscFac;
- undef $CurMap;
- undef $CurSec;
- undef $CurStu;
- undef $p_count;
- undef $Pos;
- undef $GData;
+# close Progress Line
+sub Close_PrgWin {
+ my ($r)=@_;
+ $r->print('<script>popwin.close()</script>');
+ $r->rflush();
}
+# For loading the colored table for display or un-colored for print
+sub setbgcolor {
+ my $PrintTable=shift;
+ my %color;
+ if ($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";
+ $color{"purple"}="#FFDDFF";
+ }
+
+ return \%color;
+}
+
+sub BuildClasslist {
+ my ($cacheDB,$students,$studentInformation,$headings)=@_;
+
+ my %cache;
+ unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
+ return '<html><body>Unable to tie database.</body></html>';
+ }
+
+ my $Str='';
+ $Str .= '<table border="0"><tr><td bgcolor="#777777">'."\n";
+ $Str .= '<table border="0" cellpadding="3"><tr bgcolor="#e6ffff">'."\n";
+
+ my $displayString = '<td align="left"><a href="/adm/statistics?';
+ $displayString .= 'sort=LINKDATA">DISPLAYDATA </a></td>'."\n";
+ $Str .= &Apache::lonhtmlcommon::CreateHeadings(\%cache, $studentInformation,
+ $headings, $displayString);
+ $Str .= '</tr>'."\n";
+ my $alternate=0;
+ foreach (@$students) {
+ my ($username, $domain) = split(':', $_);
+ if($alternate) {
+ $Str .= '<tr bgcolor="#ffffe6">';
+ } else {
+ $Str .= '<tr bgcolor="#ffffc6">';
+ }
+ $alternate = ($alternate + 1) % 2;
+ foreach my $data (@$studentInformation) {
+ $Str .= '<td>';
+ if($data eq 'fullname') {
+ $Str .= '<a href="/adm/statistics?reportSelected=';
+ $Str .= &Apache::lonnet::escape('Student Assessment');
+ $Str .= '&StudentAssessmentStudent=';
+ $Str .= &Apache::lonnet::escape($cache{$_.':'.$data}).'">';
+ $Str .= $cache{$_.':'.$data}.' ';
+ $Str .= '</a>';
+ } elsif($data eq 'updateTime') {
+ $Str .= '<a href="/adm/statistics?reportSelected=';
+ $Str .= &Apache::lonnet::escape('Class list');
+ $Str .= '&download='.$_.'">';
+ $Str .= $cache{$_.':'.$data}.' ';
+ $Str .= ' </a>';
+ } else {
+ $Str .= $cache{$_.':'.$data}.' ';
+ }
-sub ClassList {
-
- &GetStatus();
-
- $cid=$ENV{'request.course.id'};
- my $chome=$ENV{'course.'.$cid.'.home'};
- my ($cdom,$cnum)=split(/\_/,$cid);
-# ----------------------- Get first and last resource, see if there is anything
- $firstres=$hash{'map_start_/res/'.$ENV{'request.course.uri'}};
- $lastres=$hash{'map_finish_/res/'.$ENV{'request.course.uri'}};
- if (($firstres) && ($lastres)) {
-# ----------------------------------------------------------------- Render page
- my $classlst=&Apache::lonnet::reply
- ('dump:'.$cdom.':'.$cnum.':classlist',$chome);
- my $StudNo = 0;
- unless ($classlst=~/^error\:/) {
- foreach (sort split(/\&/,$classlst)) {
- my ($name,$value)=split(/\=/,$_);
- my ($end,$start)=split(/\:/,&Apache::lonnet::unescape($value));
- $name=&Apache::lonnet::unescape($name);
- my ($sname,$sdom)=split(/\:/,$name);
- my $ssec=&Apache::lonnet::usection($sdom,$sname,$cid);
- if ($ssec==-1) {next;}
- $ssec=($ssec) ? $ssec : '(none)';
- $ssec=(int($ssec)) ? int($ssec) : $ssec;
- #$r->print($sname.'...'.$ssec.'<br>');
- $section{$ssec}=$ssec;
- if ($CurSec eq 'All Sections' || $ssec eq $CurSec) {
- $students[$StudNo]=$name;
- $StuBox{$sname}=$ssec;
- }
- $StudNo++;
- }
- }
- else {
- $r->print('<h1>Could not access course data</h1>');
- }
- $r->print("Total number of students : ".($#students+1));
- $r->rflush();
-# --------------- Find all assessments and put them into some linear-like order
- &tracetable($firstres,'&'.$lastres.'&');
-
-#my $c=0;
-#foreach(@mapsort) {
-# $c++;
-# $r->print('<br>'.$mapsort[$c]);
-#}
-#$r->print('<br> Count = '.$c);
-
- }
-
-# ------------------------------------------------------------- End render page
- else {
- $r->print('<h3>Undefined course sequence</h3>');
+ $Str .= '</td>'."\n";
+ }
}
- &MapSecOptions();
-}
+ $Str .= '</tr>'."\n";
+ $Str .= '</table></td></tr></table>'."\n";
-sub Menu {
- my $InpStr = $ENV{'form.sort'};
- if ( $InpStr eq 'DoDiff Graph' || $InpStr eq '%Wrong Graph' ) {
- &GetGraphData($InpStr);
- $r->print('<IMG src="/cgi-bin/graph.gif?'.$GData.'" />');
- }
- else {
- $r->print('<html><head><title>LON-CAPA Statistics</title></head>');
-
-
- $r->print('<body bgcolor="#FFFFFF">'.
- '<script>window.focus(); window.width=500;window.height=500; </script>'.
- '<img align=right src=/adm/lonIcons/lonlogos.gif>');
-# ---------------------------------------------------------------- Course title
- $r->print('<h1> Course : "'.
- $ENV{'course.'.$ENV{'request.course.id'}.
- '.description'}.'"</h1><h2>'.localtime().'</h2>');
-# ------------------------------- This is going to take a while, produce output
- $r->rflush();
-
- $r->print("\n".'<form name=stat method=post action="/adm/statistics" >');
-
- my $content = $ENV{'form.sort'};
- if ($content eq '' || $content eq 'Return to Menu') {
- my $Ptr = '<h3>';
- $Ptr .= '<input type=submit name=sort value="Problem Evaluation"/>';#General Statistics"/>';
- $Ptr .= '<br><br>';
- $Ptr .= '<input type=submit name=sort value="Student Assessment"/>';
- $Ptr .= '<br><br>';
-# $Ptr .= '<input type=submit name=sort value=Discrimination>';#"Problem Evaluation"/>';
- $Ptr .= '</h3>';
- $r->print( $Ptr );
- }
- else {
- &initial();
- &ClassList();
- if ( $content eq 'Discrimination' || #'Problem Evaluation' ||
- $content eq 'Recalculate Discrimintion Factor' ) {
- &CreateDiscFac();
- }
- elsif ( $content eq 'Student Assessment' ||
- $content eq 'Create Student Report' ) {
- &StudentOptions();
- &StudentReport($CurStu,$StuBox{"$CurStu"});
- }
- else {
- &PreStatTable();
- }
- }
- $r->print("\n".'</form>'.
- "\n".'</body>'.
- "\n".'</html>');
- $r->rflush();
- }
-}
+ untie(%cache);
-sub StudentOptions {
- my $OpSel5='';
- $CurStu = $ENV{'form.student'};
- if ( $CurStu eq '' ) {
- $CurStu = 'All Students';
- $OpSel5 = 'selected';
- }
- my $Ptr ='';
-# ----------------------------------- Loading the Students Combobox
- $Ptr .= '<br><b>Select Student</b>'."\n".
- '<select name="student">'."\n".
- '<option '.$OpSel5.'>All Students</option>';
- foreach my $key ( sort keys %StuBox ) {
- $Ptr .= '<option';
- if ($CurStu eq $key) {$Ptr .= ' selected';}
- $Ptr .= '>'.$key."</option>\n";
- }
- $Ptr .= '</select>';
- $Ptr .= '<br><input type="submit" name="sort" value="Create Student Report" />';
- $r->print( $Ptr );
- $r->rflush();
+ return $Str;
}
-sub GetStatus {
-
- $OpSelDis1='';
- $OpSelDis2='';
- $OpSel1='';
- $OpSel2='';
- $OpSel3='';
- $OpSel4='';
-
-# if ( $ENV{'form.DisType'} eq 'Total Number of Correct Answers' ) {
-# $OpSelDis1='selected';
-# $CurDis=0;
-# }
-# else { $OpSel2 = 'selected'; $CurDis = 1;}
-
- if ( $ENV{'form.order'} eq 'Descending' ) { $OpSel2='selected'; }
- else { $OpSel1 = 'selected'; }
- $CurMap = $ENV{'form.maps'};
- if ( $CurMap eq '' ) {
- $CurMap = 'All Maps';
- $OpSel3 = 'selected';
- }
- $CurSec = $ENV{'form.section'};
- if ( $CurSec eq '' ) {
- $CurSec = 'All Sections';
- $OpSel4 = 'selected';
+sub CreateMainMenu {
+ my ($status, $reports)=@_;
+
+ my $Str = '';
+
+ $Str .= '<table border="0"><tbody><tr>'."\n";
+ $Str .= '<td></td><td></td>'."\n";
+ $Str .= '<td align="center"><b>Analysis Reports:</b></td>'."\n";
+ $Str .= '<td align="center"><b>Student Status:</b></td></tr>'."\n";
+ $Str .= '<tr>'."\n";
+ $Str .= '<td align="center"><input type="submit" name="Refresh" ';
+ $Str .= 'value="Refresh" /></td>'."\n";
+ $Str .= '<td align="center"><input type="submit" name="DownloadAll" ';
+ $Str .= 'value="Update All Student Data" /></td>'."\n";
+ $Str .= '<td align="center">';
+ $Str .= '<select name="reportSelected" onchange="document.';
+ $Str .= 'Statistics.submit()">'."\n";
+
+ foreach (sort(keys(%$reports))) {
+ next if($_ eq 'reportSelected');
+ $Str .= '<option name="'.$_.'"';
+ if($reports->{'reportSelected'} eq $reports->{$_}) {
+ $Str .= ' selected=""';
+ }
+ $Str .= '>'.$reports->{$_}.'</option>'."\n";
}
-}
+ $Str .= '</select></td>'."\n";
+
+ $Str .= '<td align="center">';
+ $Str .= &Apache::lonhtmlcommon::StatusOptions($status, 'Statistics');
+ $Str .= '</td>'."\n";
+
+ $Str .= '</tr></tbody></table>'."\n";
+ $Str .= '<hr>'."\n";
+
+ return $Str;
+}
+
+sub BuildStatistics {
+ my ($r)=@_;
+
+ my $c = $r->connection;
+ my @studentInformation=('fullname','section','id','domain','username',
+ 'updateTime');
+ my @headings=('Full Name', 'Section', 'PID', 'Domain', 'User Name',
+ 'Last Updated');
+ my $spacing = ' ';
+ my %reports = ('classlist' => 'Class list',
+ 'problem_statistics' => 'Problem Statistics',
+ 'student_assessment' => 'Student Assessment',
+ 'reportSelected' => 'Class list');
+
+ my %cache;
+ my $courseID=$ENV{'request.course.id'};
+ my $cacheDB = "/home/httpd/perl/tmp/$ENV{'user.name'}".
+ "_$ENV{'user.domain'}_$courseID\_statistics.db";
+
+ my %color=&setbgcolor(0);
+ my ($returnValue, $students) = &PrepareData($c, $cacheDB,
+ \@studentInformation,
+ \@headings);
+ if($returnValue ne 'OK') {
+ $r->print('<html><body>'.$returnValue."\n".'</body></html>');
+ return OK;
+ }
+
+ my $GoToPage;
+ if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER,0640)) {
+ $GoToPage = $cache{'reportSelected'};
+ $reports{'reportSelected'} = $cache{'reportSelected'};
+# if(defined($cache{'reportKey'}) && $cache{'reportKey'} ne 'false') {
+# $reports{$cache{'reportKey'}} = $cache{'reportSelected'};
+# }
+ if(defined($cache{'OptionResponses'})) {
+ $reports{'problem_analysis'} = 'Problem Analysis';
+ }
-sub MapSecOptions {
-# ----------------------------------- Loading the Maps Combobox
- my $Ptr = '<br>';
- $Ptr .= '<br><input type="submit" name="sort" value="Return to Menu" />';
- $Ptr .= '<br><b> Select Map </b>'."\n".
- '<select name="maps">'."\n".
- '<option '.$OpSel3.'>All Maps</option>';
- foreach my $key ( sort keys %maps ) {
- $Ptr .= '<option';
- if ($CurMap eq $key) {$Ptr .= ' selected';}
- $Ptr .= '>'.$key."</option>\n";
- }
- $Ptr .= '</select>';
- $Ptr .= ' ';
-
-# ----------------------------------- Loading the Sections Combobox
- $Ptr .= '<br><b>Select Section</b>'."\n".
- '<select name="section">'."\n".
- '<option '.$OpSel4.'>All Sections</option>';
- foreach my $key ( sort keys %section ) {
- $Ptr .= '<option';
- if ($CurSec eq $key) {$Ptr .= ' selected';}
- $Ptr .= '>'.$key."</option>"."\n";
+ $r->print(&Apache::lonhtmlcommon::Title('LON-CAPA Statistics'));
+ $r->print('<form name="Statistics" ');
+ $r->print('method="post" action="/adm/statistics">');
+ $r->print(&CreateMainMenu($cache{'Status'}, \%reports));
+ untie(%cache);
+ } else {
+ $r->print('<html><body>Unable to tie database.</body></html>');
+ return OK;
+ }
+
+ if($GoToPage eq 'Activity Log') {
+ &Apache::lonproblemstatistics::Activity();
+ } elsif($GoToPage eq 'Problem Statistics') {
+ $r->print(
+ &Apache::lonproblemstatistics::BuildProblemStatisticsPage($cacheDB,
+ $students,
+ $courseID,
+ $c,$r,
+ \%color));
+ } elsif($GoToPage eq 'Problem Analysis') {
+ $r->print(
+ &Apache::lonproblemanalysis::BuildProblemAnalysisPage($cacheDB));
+ } elsif($GoToPage eq 'Student Assessment') {
+ $r->print(
+ &Apache::lonstudentassessment::BuildStudentAssessmentPage($cacheDB,
+ $students,
+ $courseID,
+ 'Statistics',
+ \@headings,
+ $spacing,
+ \@studentInformation,
+ $r, $c));
+ } elsif($GoToPage eq 'Analyze') {
+ $r->print(&Apache::lonproblemanalysis::BuildAnalyzePage($cacheDB,
+ $students,
+ $courseID));
+ } elsif($GoToPage eq 'DoDiffGraph') {
+ &Apache::lonproblemstatistics::BuildDiffGraph($r);
+ } elsif($GoToPage eq 'PercentWrongGraph') {
+ &Apache::lonproblemstatistics::BuildWrongGraph($r);
+ } elsif($GoToPage eq 'Class list') {
+ $r->print(&BuildClasslist($cacheDB, $students, \@studentInformation,
+ \@headings));
}
- $Ptr .= '</select>'."\n";
- $r->print( $Ptr );
+ $r->print('</form>'."\n");
+ $r->print("\n".'</body>'."\n".'</html>');
$r->rflush();
-}
+ return OK;
+}
# ================================================================ Main Handler
sub handler {
- $r=shift;
-
- if (&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) {
-# ------------------------------------------- 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');
- }
- $r->send_http_header;
- return OK;
- }
- my $requrl=$r->uri;
-# ----------------------------------------------------------------- Tie db file
+ my $r=shift;
- undef %hash;
-
- if ($ENV{'request.course.fn'}) {
- my $fn=$ENV{'request.course.fn'};
- if (-e "$fn.db") {
- if (tie(%hash,'GDBM_File',"$fn.db",&GDBM_READER,0640)) {
-# ------------------------------------------------------------------- Hash tied
- $r->content_type('text/html');
- $r->send_http_header;
- &Menu();
- }
- else {
- $r->content_type('text/html');
- $r->send_http_header;
- $r->print('<html><body>Coursemap undefined.</body></html>');
- }
-# ------------------------------------------------------------------ Untie hash
- unless (untie(%hash)) {
- &Apache::lonnet::logthis("<font color=blue>WARNING: ".
- "Could not untie coursemap $fn (browse).</font>");
- }
-
-# -------------------------------------------------------------------- All done
- return OK;
-# ----------------------------------------------- Errors, hash could no be tied
- }
- }
- else {
- $ENV{'user.error.msg'}="$requrl:bre:0:0:Course not initialized";
- return HTTP_NOT_ACCEPTABLE;
- }
- }
- else {
+ unless(&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) {
$ENV{'user.error.msg'}=
$r->uri.":vgr:0:0:Cannot view grades for complete course";
+ return HTTP_NOT_ACCEPTABLE;
+ }
+
+ # Set document type for header only
+ if($r->header_only) {
+ if ($ENV{'browser.mathml'}) {
+ $r->content_type('text/xml');
+ } else {
+ $r->content_type('text/html');
+ }
+ &Apache::loncommon::no_cache($r);
+ $r->send_http_header;
+ return OK;
+ }
+ unless($ENV{'request.course.fn'}) {
+ my $requrl=$r->uri;
+ $ENV{'user.error.msg'}="$requrl:bre:0:0:Course not initialized";
return HTTP_NOT_ACCEPTABLE;
}
+
+ $r->content_type('text/html');
+ $r->send_http_header;
+
+ &BuildStatistics($r);
+
+ return OK;
}
1;
__END__
-
-