version 1.7, 2002/03/06 18:42:01
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version 1.41, 2002/08/13 00:37:18
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Line 27
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Line 27
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# |
# |
# (Navigate problems for statistical reports |
# (Navigate problems for statistical reports |
# YEAR=2001 |
# YEAR=2001 |
# 5/05,7/09,7/25/01,8/11,9/13,9/26,10/5,10/9,10/22,10/26 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 |
# 11/1,11/4,11/16,12/14,12/16,12/18,12/20,12/31 Behrouz Minaei |
# YEAR=2002 |
# YEAR=2002 |
# 1/22, 2/1, 2/6, 2/25, 3/2, 3/6 Behrouz Minaei |
# 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 |
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# 5/12,5/14,5/15,5/19,5/26,7/16,25/7,29/7 Behrouz Minaei |
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# |
### |
### |
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package Apache::lonstatistics; |
package Apache::lonstatistics; |
Line 39 use strict;
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Line 41 use strict;
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use Apache::Constants qw(:common :http); |
use Apache::Constants qw(:common :http); |
use Apache::lonnet(); |
use Apache::lonnet(); |
use Apache::lonhomework; |
use Apache::lonhomework; |
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use Apache::loncommon; |
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use Apache::loncoursedata; |
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use Apache::lonhtmlcommon; |
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use Apache::lonproblemanalysis; |
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use Apache::lonproblemstatistics; |
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use Apache::lonstudentassessment; |
use HTML::TokeParser; |
use HTML::TokeParser; |
use GDBM_File; |
use GDBM_File; |
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# -------------------------------------------------------------- Module Globals |
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my %hash; |
sub CheckFormElement { |
my %CachData; |
my ($cache, $ENVName, $cacheName, $default)=@_; |
my %GraphDat; |
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my %maps; |
if(defined($ENV{'form.'.$ENVName})) { |
my %mapsort; |
$cache->{$cacheName} = $ENV{'form.'.$ENVName}; |
my %section; |
} elsif(!defined($cache->{$cacheName})) { |
my %StuBox; |
$cache->{$cacheName} = $default; |
my %DiscFac; |
} |
my %DisUp; |
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my %DisLow; |
return; |
my $UpCnt; |
} |
my $CurMap; |
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my $CurSec; |
sub ProcessFormData{ |
my $CurStu; |
my ($cache)=@_; |
my @cols; |
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my @list; |
$cache->{'reportKey'} = 'false'; |
my @students; |
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my $p_count; |
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, |
my $Pos; |
['sort','download', |
my $r; |
'reportSelected', |
my $OpSel1; |
'StudentAssessmentStudent', |
my $OpSel2; |
'ProblemStatisticsSort']); |
my $OpSelDis1; |
&CheckFormElement($cache, 'Status', 'Status', 'Active'); |
my $OpSelDis2; |
&CheckFormElement($cache, 'postdata', 'reportSelected', 'Class list'); |
my $CurDis=0; |
&CheckFormElement($cache, 'reportSelected', 'reportSelected', |
my $OpSel3; |
'Class list'); |
my $OpSel4; |
$cache->{'reportSelected'} = |
my $GData; |
&Apache::lonnet::unescape($cache->{'reportSelected'}); |
my $cid; |
&CheckFormElement($cache, 'DownloadAll', 'DownloadAll', 'false'); |
my $firstres; |
&CheckFormElement($cache, 'sort', 'sort', 'fullname'); |
my $lastres; |
&CheckFormElement($cache, 'download', 'download', 'false'); |
my $DiscFlag; |
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my $HWN; |
# student assessment |
my $P_Order; |
if(defined($ENV{'form.CreateStudentAssessment'}) || |
my %Header = (0,"Homework Sets Order",1,"#Stdnts",2,"Tries",3,"Mod", |
defined($ENV{'form.NextStudent'}) || |
4,"Mean",5,"#YES",6,"#yes",7,"%Wrng",8,"DoDiff", |
defined($ENV{'form.PreviousStudent'})) { |
9,"S.D.",10,"Skew.", |
$cache->{'reportSelected'} = 'Student Assessment'; |
11,"D.F.",12,"U.A.",13,"L.A.",14,"U.R.",15,"L.R."); |
} |
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if(defined($ENV{'form.NextStudent'})) { |
#------- Processing upperlist and lowerlist according to each problem |
$cache->{'StudentAssessmentMove'} = 'next'; |
sub ProcessDisc { |
} elsif(defined($ENV{'form.PreviousStudent'})) { |
my @List = @_; |
$cache->{'StudentAssessmentMove'} = 'previous'; |
@List = sort (@List); |
} else { |
my $Count = $#List+1; |
$cache->{'StudentAssessmentMove'} = 'selected'; |
my $Prb; |
} |
my @Dis; |
&CheckFormElement($cache, 'StudentAssessmentStudent', |
my $Slvd=0; |
'StudentAssessmentStudent', 'All Students'); |
my $tmp; |
$cache->{'StudentAssessmentStudent'} = |
my $Sum=0; |
&Apache::lonnet::unescape($cache->{'StudentAssessmentStudent'}); |
my $nIdx=0; |
&CheckFormElement($cache, 'DefaultColumns', 'DefaultColumns', 'false'); |
my $nStud=0; |
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my %Proc; |
if(defined($ENV{'form.Section'})) { |
undef %Proc; |
my @sectionsSelected = (ref($ENV{'form.Section'}) ? |
while ($nIdx<$Count) { |
@{$ENV{'form.Section'}} : |
($Prb,$tmp)=split(/\=/,$List[$nIdx]); |
($ENV{'form.Section'})); |
@Dis=split(/\+/,$tmp); |
$cache->{'sectionsSelected'} = join(':', @sectionsSelected); |
my $Temp = $Prb; |
} elsif(!defined($cache->{'sectionsSelected'})) { |
do { |
$cache->{'sectionsSelected'} = $cache->{'sectionList'}; |
$nIdx++; |
} |
$nStud++; |
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$Sum += $Dis[$CurDis]; |
# Problem analysis |
($Prb,$tmp)=split(/\=/,$List[$nIdx]); |
&CheckFormElement($cache, 'Interval', 'Interval', '1'); |
@Dis=split(/\+/,$tmp); |
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} while ( $Prb eq $Temp && $nIdx < $Count ); |
# ProblemStatistcs |
$Proc{$Temp}=$Sum.':'.$nStud; |
&CheckFormElement($cache, 'DisplayCSVFormat', |
$Proc{$Temp}=($Sum/$nStud).':'.$nStud; |
'DisplayFormat', 'Display Table Format'); |
# $r->print("$nIdx) $Temp --> ($nStud) $Proc{$Temp} <br>"); |
&CheckFormElement($cache, 'ProblemStatisticsAscend', |
$Sum=0; |
'ProblemStatisticsAscend', 'Ascending'); |
$nStud=0; |
&CheckFormElement($cache, 'ProblemStatisticsMaps', |
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'ProblemStatisticsMaps', 'All Maps'); |
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&CheckFormElement($cache, 'ProblemStatisticsSort', |
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'ProblemStatisticsSort', 'Homework Sets Order'); |
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# Search only form elements |
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my @headingColumns=(); |
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my @sequenceColumns=(); |
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my $foundColumn = 0; |
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if(defined($ENV{'form.ReselectColumns'})) { |
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my @reselected = (ref($ENV{'form.ReselectColumns'}) ? |
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@{$ENV{'form.ReselectColumns'}} |
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: ($ENV{'form.ReselectColumns'})); |
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foreach (@reselected) { |
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if(/HeadingColumn/) { |
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push(@headingColumns, $_); |
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$foundColumn = 1; |
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} elsif(/SequenceColumn/) { |
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push(@sequenceColumns, $_); |
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$foundColumn = 1; |
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} |
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} |
} |
} |
return %Proc; |
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} |
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$cache->{'reportKey'} = 'false'; |
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if($cache->{'reportSelected'} eq 'Analyze') { |
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$cache->{'reportKey'} = 'Analyze'; |
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} elsif($cache->{'reportSelected'} eq 'DoDiffGraph') { |
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$cache->{'reportKey'} = 'DoDiffGraph'; |
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} elsif($cache->{'reportSelected'} eq 'PercentWrongGraph') { |
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$cache->{'reportKey'} = 'PercentWrongGraph'; |
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} |
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if(defined($ENV{'form.DoDiffGraph'})) { |
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$cache->{'reportSelected'} = 'DoDiffGraph'; |
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$cache->{'reportKey'} = 'DoDiffGraph'; |
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} elsif(defined($ENV{'form.PercentWrongGraph'})) { |
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$cache->{'reportSelected'} = 'PercentWrongGraph'; |
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$cache->{'reportKey'} = 'PercentWrongGraph'; |
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} |
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foreach (keys(%ENV)) { |
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if(/form\.Analyze/) { |
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$cache->{'reportSelected'} = 'Analyze'; |
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$cache->{'reportKey'} = 'Analyze'; |
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my $data; |
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(undef, $data)=split(':::', $_); |
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$cache->{'AnalyzeInfo'}=$data; |
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} elsif(/form\.HeadingColumn/) { |
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my $value = $_; |
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$value =~ s/form\.//; |
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push(@headingColumns, $value); |
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$foundColumn=1; |
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} elsif(/form\.SequenceColumn/) { |
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my $value = $_; |
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$value =~ s/form\.//; |
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push(@sequenceColumns, $value); |
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$foundColumn=1; |
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} |
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} |
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#------- Creating Discimination factor |
if($foundColumn) { |
sub Discriminant { |
$cache->{'HeadingsFound'} = join(':', @headingColumns); |
my $Count=0; |
$cache->{'SequencesFound'} = join(':', @sequenceColumns);; |
foreach (keys(%DiscFac)){ |
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$Count++; |
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} |
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$UpCnt = int(0.27*$Count); |
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my $low=0; |
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my $up=$Count-$UpCnt; |
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my @UpList=(); |
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my @LowList=(); |
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$Count=0; |
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foreach my $key (sort(keys(%DiscFac))){ |
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$Count++; |
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#$r->print("<br>$Count) $key = $DiscFac{$key}"); |
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if ($low < $UpCnt || $Count > $up) { |
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$low++; |
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my $str=$DiscFac{$key}; |
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foreach(split(/\:/,$str)){ |
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if ($_) { |
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if ($low<$UpCnt){push(@LowList,$_);} |
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else {push(@UpList,$_);} |
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} |
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} |
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} |
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} |
} |
%DisUp=&ProcessDisc(@UpList); |
if(!defined($cache->{'HeadingsFound'}) || |
%DisLow=&ProcessDisc(@LowList); |
$cache->{'DefaultColumns'} ne 'false') { |
} |
$cache->{'HeadingsFound'}='HeadingColumnFull Name'; |
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} |
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if(!defined($cache->{'SequencesFound'}) || |
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$cache->{'DefaultColumns'} ne 'false') { |
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$cache->{'SequencesFound'}='All Sequences'; |
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} |
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$cache->{'DefaultColumns'} = 'false'; |
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return; |
sub NumericSort { |
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$a <=> $b; |
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} |
} |
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# ------ Create different Student Report |
=pod |
sub StudentReport { |
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my ($sname,$sdom)=@_; |
=item &SortStudents() |
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if ( $sname eq 'All Students' ) { |
Determines which students to display and in which order. Which are |
$r->print( '<h3><font color=blue>WARNING: |
displayed are determined by their status(active/expired). The order |
Please select a student</font></h3>' ); |
is determined by the sort button pressed (default to username). The |
return; |
type of sorting is username, lastname, or section. |
} |
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my $shome=&Apache::lonnet::homeserver($sname,$sdom); |
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my $reply=&Apache::lonnet::reply('dump:'.$sdom.':'.$sname.':'.$cid,$shome ); |
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my %result = (); |
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my $ResId; |
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my $PrOrd; |
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my $Code; |
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my $Tries; |
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my $TotalTries = 0; |
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my $ParCr = 0; |
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my $Wrongs; |
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my %TempHash; |
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my $Version; |
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my $LatestVersion; |
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my $PtrTry=''; |
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my $PtrCod=''; |
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my $SetNo=0; |
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my $Str = "\n".'<table border=2>'. |
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"\n".'<tr>'. |
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"\n".'<th> # </th>'. |
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"\n".'<th> Set Title </th>'. |
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"\n".'<th> Results </th>'. |
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"\n".'<th> Tries </th>'. |
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"\n".'</tr>'; |
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unless ($reply=~/^error\:/) { |
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foreach (split(/\&/,$reply)){ |
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my ($name,$value)=split(/\=/,&Apache::lonnet::unescape($_)); |
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$result{$name}=$value; |
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} |
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foreach my $CurCol (@cols) { |
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if (!$CurCol){ |
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my $Set=&Apache::lonnet::declutter($hash{'map_id_'.$1}); |
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if ( $Set ) { |
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$SetNo++; |
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$Str .= "\n"."<tr>". |
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"\n"."<td> $SetNo </td>". |
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"\n"."<td> $Set </td>". |
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"\n"."<td> $PtrCod </td>". |
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"\n"."<td> $PtrTry</td>". |
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"\n"."</tr>"; |
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} |
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$PtrTry=''; |
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$PtrCod=''; |
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next; |
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} |
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($PrOrd,$ResId)=split(/\:/,$CurCol); |
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$ResId=~/(\d+)\.(\d+)/; |
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my $Map = &Apache::lonnet::declutter( $hash{'map_id_'.$1} ); |
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if ( $CurMap ne 'All Maps' ) { |
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my ( $ResMap, $NameMap ) = split(/\=/,$CurMap); |
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if ( $Map ne $ResMap ) { next; } |
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} |
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my $meta=$hash{'src_'.$ResId}; |
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my $PartNo = 0; |
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undef %TempHash; |
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foreach (split(/\,/,&Apache::lonnet::metadata($meta,'keys'))){ |
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if ($_=~/^stores\_(\d+)\_tries$/) { |
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my $Part=&Apache::lonnet::metadata($meta,$_.'.part'); |
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if ( $TempHash{"$Part"} eq '' ) { |
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$TempHash{"$Part"} = $Part; |
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$TempHash{$PartNo}=$Part; |
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$TempHash{"$Part.Code"} = '-'; |
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$TempHash{"$Part.PrOrd"} = $PrOrd+$PartNo; |
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$PartNo++; |
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} |
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} |
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} |
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my $Prob = $Map.'___'.$2.'___'. |
=over 4 |
&Apache::lonnet::declutter( $hash{'src_'.$ResId} ); |
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$Code='U'; |
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$Tries = 0; |
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$Wrongs = 0; |
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$LatestVersion = $result{"version:$Prob"}; |
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if ( $LatestVersion ) { |
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for ( my $Version=1; $Version<=$LatestVersion; $Version++ ) { |
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my $vkeys = $result{"$Version:keys:$Prob"}; |
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my @keys = split(/\:/,$vkeys); |
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foreach my $Key (@keys) { |
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if (($Key=~/\.(\w+)\.solved$/) && ($Key!~/^\d+\:/)) { |
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my $Part = $1; |
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$Tries = $result{"$Version:$Prob:resource.$Part.tries"}; |
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$TempHash{"$Part.Tries"} = ($Tries) ? $Tries : 0; |
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$TotalTries += $Tries; |
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my $Val = $result{"$Version:$Prob:resource.$Part.solved"}; |
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if ( $Val eq 'correct_by_student' ) |
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{ $Wrongs = $Tries - 1; $Code = 'Y'; } |
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elsif ( $Val eq 'correct_by_override' ) |
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{ $Wrongs = $Tries - 1; $Code = 'y'; } |
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elsif ( $Val eq 'incorrect_attempted' || |
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$Val eq 'incorrect_by_override' ) |
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{ $Wrongs = $Tries; $Code = 'N'; } |
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$TempHash{"$Part.Code"} = $Code; |
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$TempHash{"$Part.Wrongs"} = $Wrongs; |
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} |
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} |
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} |
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for ( my $n = 0; $n < $PartNo; $n++ ) { |
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my $part = $TempHash{$n}; |
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if ($PtrTry ne '') {$PtrTry .= ',';} |
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$PtrTry .= "$TempHash{$part.'.Tries'}"; |
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$PtrCod .= "$TempHash{$part.'.Code'}"; |
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} |
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} |
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else { |
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for(my $n=0; $n<$PartNo; $n++) { |
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if ($PtrTry ne '') {$PtrTry .= ',';} |
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$PtrTry .= "0"; |
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$PtrCod .= "-"; |
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} |
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} |
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} |
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} |
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$Str .= "\n".'</table>'; |
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$r->print($Str); |
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$r->rflush(); |
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} |
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sub CreateTable { |
Input: $students, $CacheData |
my $ColNo=0; |
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foreach (keys(%Header)){ |
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$ColNo++; |
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} |
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my ($Hd, $Hid)=@_; |
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if ( $Hd == 1 ) { |
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$r->print('<br><a href="'.$hash{'src_'.$Hid}. |
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'" target="_blank">'.$hash{'title_'.$Hid}.'</a>'); |
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} |
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my $Result = "\n".'<table border=2>'; |
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$Result .= '<tr><th>P#</th>'."\n"; |
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for ( my $nIdx=0; $nIdx < $ColNo; $nIdx++ ) { |
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$Result .= '<th>'.'<input type="submit" name="sort" value="'. |
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$Header{$nIdx}.'" />'.'</th>'."\n"; |
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} |
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$Result .= "\n".'</tr>'."\n"; |
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$r->print( $Result ); |
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$r->rflush(); |
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} |
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sub CloseTable { |
$students: A array pointer to a list of students (username:domain) |
$r->print("\n".'</table>'."\n"); |
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$r->rflush(); |
$CacheData: A pointer to the hash tied to the cached data |
} |
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Output: \@order |
# ------------------------------------------- Prepare Statistics Table |
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sub PreStatTable { |
@order: An ordered list of students (username:domain) |
my $CacheDB = "/home/httpd/perl/tmp/$ENV{'user.name'}". |
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"_$ENV{'user.domain'}_$cid\_statistics.db"; |
=back |
my $GraphDB = "/home/httpd/perl/tmp/$ENV{'user.name'}". |
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"_$ENV{'user.domain'}_$cid\_graph.db"; |
=cut |
my $CachDisFac = "/home/httpd/perl/tmp/$ENV{'user.name'}". |
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"_$ENV{'user.domain'}_$cid\_DiscFactor.db"; |
sub SortStudents { |
my $OpSel11=''; |
my ($cache)=@_; |
my $OpSel12=''; |
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my $OpSel13=''; |
my @students = split(':::',$cache->{'NamesOfStudents'}); |
my $Status = $ENV{'form.status'}; |
my @sorted1Students=(); |
if ( $Status eq 'Any' ) { $OpSel13='selected'; } |
foreach (@students) { |
elsif ($Status eq 'Expired' ) { $OpSel12 = 'selected'; } |
if($cache->{'Status'} eq 'Any' || |
else { $OpSel11 = 'selected'; } |
$cache->{$_.':Status'} eq $cache->{'Status'}) { |
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push(@sorted1Students, $_); |
my $Ptr = ''; |
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$Ptr .= '<br><b> Student Status: </b>'."\n". |
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'<select name="status">'. |
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'<option '.$OpSel11.' >Active</option>'."\n". |
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'<option '.$OpSel12.' >Expired</option>'."\n". |
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'<option '.$OpSel13.' >Any</option> </select> '."\n"; |
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$Ptr .= ' '; |
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$Ptr .= '<input type=submit name=sort value="Recalculate Statistics"/>'."\n"; |
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$Ptr .= '<br><b> Sorting Type: </b>'."\n". |
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'<select name="order"> <option '.$OpSel1.' >Ascending</option>'."\n". |
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'<option '.$OpSel2.'>Descending</option> </select> '."\n"; |
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$Ptr .= ' '; |
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$Ptr .= '<input type="submit" name="sort" value="DoDiff Graph" />'."\n"; |
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$Ptr .= ' '; |
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$Ptr .= '<input type="submit" name="sort" value="%Wrong Graph" />'."\n"; |
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|
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$Ptr .= '<pre>'. |
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'<b> #Stdnts</b>: Total Number of Students opened the problem.<br>'. |
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'<b> Tries </b>: Total Number of Tries for solving the problem.<br>'. |
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'<b> Mod </b> : Maximunm Number of Tries for solving the problem.<br>'. |
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'<b> Mean </b>: Average Number of the tries. [ Tries / #Stdnts ]<br>'. |
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'<b> #YES </b>: Number of students solved the problem correctly.<br>'. |
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'<b> #yes </b>: Number of students solved the problem by override.<br>'. |
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'<b> %Wrng </b>: Percentage of students tried to solve the problem but'. |
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' still incorrect. [ 100*((#Stdnts-(#YES+#yes))/#Stdnts) ]<br>'. |
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# ' DoDiff : Degree of Difficulty of the problem. [ Tries/(#YES+#yes+0.1) ]<br>'. |
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'<b> DoDiff </b>: Degree of Difficulty of the problem. [ 1 - ((#YES+#yes) / Tries) ]<br>'. |
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'<b> S.D. </b> : Standard Deviation of the tries.'. |
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'[ sqrt(sum((Xi - Mean)^2)) / (#Stdnts-1)'. |
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' where Xi denotes every student\'s tries ]<br>'. |
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'<b> Skew. </b>: Skewness of the students tries.'. |
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' [ (sqrt( sum((Xi - Mean)^3) / #Stdnts)) / (S.D.^3) ]<br>'. |
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'<b> Dis.F. </b>: Discrimination Factor. [ Sum of Partial Credits'. |
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' Awarded / Total Number of Tries in %27 upper and lower students]<br>'. |
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'<b> U.A. </b>: Upper %27 Award<br>'. |
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'<b> L.A. </b>: Lower %27 Award<br>'. |
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'<b> U.R. </b>: Upper %27 Records<br>'. |
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'<b> L.R. </b>: Lower %27 Records'. |
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# "<br>The <b>Upper 27%</b> has <b>$UpCnt</b> records.". |
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# " The <b>Lower 27%</b> has <b>$UpCnt</b> records <br>". |
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# "The Criterion of sorting the students: ". |
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# "<b>( Sum of Partial Credits Awarded / ". |
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# "Total Number of Tries )</b>". |
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|
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'</pre>'; |
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|
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$r->print($Ptr); |
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$r->rflush(); |
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|
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if ((-e "$CacheDB")&&($ENV{'form.sort'} ne 'Recalculate Statistics')) { |
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if (tie(%CachData,'GDBM_File',"$CacheDB",&GDBM_READER,0640)) { |
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tie(%DiscFac,'GDBM_File',$CachDisFac,&GDBM_READER,0640); |
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tie(%GraphDat,'GDBM_File',$GraphDB,&GDBM_WRCREAT,0640); |
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&Cache_Statistics(); |
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} |
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else { |
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$r->print("Unable to tie hash to db file"); |
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} |
} |
} |
} |
else { |
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if (tie(%CachData,'GDBM_File',$CacheDB,&GDBM_WRCREAT,0640)) { |
my $sortBy = ''; |
tie(%DiscFac,'GDBM_File',$CachDisFac,&GDBM_WRCREAT,0640); |
if(defined($cache->{'sort'})) { |
tie(%GraphDat,'GDBM_File',$GraphDB,&GDBM_WRCREAT,0640); |
$sortBy = ':'.$cache->{'sort'}; |
foreach (keys %DiscFac) {delete $CachData{$_};} |
|
foreach (keys %CachData) {delete $CachData{$_};} |
|
$DiscFlag=0; |
|
&Build_Statistics(); |
|
} |
|
else { |
|
$r->print("Unable to tie hash to db file"); |
|
} |
|
} |
} |
#$r->print('Total instances of the problems : '.($p_count*($#students+1))); |
my @order = sort { $cache->{$a.$sortBy} cmp $cache->{$b.$sortBy} || |
|
$cache->{$a.':fullname'} cmp $cache->{$b.':fullname'} } |
|
@sorted1Students; |
|
|
untie(%CachData); |
return \@order; |
untie(%GraphDat); |
|
untie(%DiscFac); |
|
} |
} |
|
|
|
=pod |
|
|
# ------------------------------------- Find the section of student in a course |
=item &SpaceColumns() |
|
|
sub usection { |
Determines the width of all the columns in the chart. It is based on |
my ($udom,$unam,$courseid,$ActiveFlag)=@_; |
the max of the data for that column and its header. |
$courseid=~s/\_/\//g; |
|
$courseid=~s/^(\w)/\/$1/; |
|
foreach (split(/\&/,&Apache::lonnet::reply('dump:'. |
|
$udom.':'.$unam.':roles', |
|
&Apache::lonnet::homeserver($unam,$udom)))){ |
|
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)); |
|
if ( $ActiveFlag ne 'Any' ) { |
|
my $now=time; |
|
my $notactive=0; |
|
if ($start) { |
|
if ($now<$start) { $notactive=1; } |
|
} |
|
if ($end) { |
|
if ($now>$end) { $notactive=1; } |
|
} |
|
if ((($ActiveFlag eq 'Expired') && $notactive == 1) || |
|
(($ActiveFlag eq 'Active') && $notactive == 0 ) ) { |
|
return $section; |
|
} |
|
else { return '-1'; } |
|
} |
|
return $section; |
|
} |
|
} |
|
return '-1'; |
|
} |
|
|
|
|
=over 4 |
|
|
# ------ Dump the Student's DB file and handling the data for statistics table |
Input: $students, $studentInformation, $headings, $ChartDB |
|
|
sub ExtractStudentData { |
$students: An array pointer to a list of students (username:domain) |
my ($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 $PrOrd; |
|
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\:/) { |
|
foreach (split(/\&/,$reply)) { |
|
my ($name,$value)=split(/\=/,&Apache::lonnet::unescape($_)); |
|
$result{$name}=$value; |
|
} |
|
foreach my $CurCol(@cols) { |
|
($PrOrd,$ResId)=split(/\:/,$CurCol); |
|
if ( !$CurCol ) { next; } |
|
$ResId=~/(\d+)\.(\d+)/; |
|
my $MapId=$1; |
|
my $PrbId=$2; |
|
my $Map = &Apache::lonnet::declutter( $hash{'map_id_'.$MapId} ); |
|
if ( $CurMap ne 'All Maps' ) { |
|
my ( $ResMap, $NameMap ) = split(/\=/,$CurMap); |
|
if ( $Map ne $ResMap ) { next; } |
|
} |
|
my $meta=$hash{'src_'.$ResId}; |
|
my $PartNo = 0; |
|
$Dis .= ':'; |
|
undef %TempHash; |
|
foreach (split(/\,/,&Apache::lonnet::metadata($meta,'keys'))) { |
|
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'; |
|
$TempHash{"$Part.PrOrd"} = $PrOrd+$PartNo; |
|
$PartNo++; |
|
} |
|
} |
|
} |
|
|
|
my $Prob = $Map.'___'.$PrbId.'___'. |
$studentInformatin: The type of data for the student information. It is |
&Apache::lonnet::declutter( $hash{'src_'.$ResId} ); |
used as part of the key in $CacheData. |
$Code='U'; |
|
$Tries = 0; |
$headings: The name of the student information columns. |
$ParCr = 0; |
|
$Wrongs = 0; |
$ChartDB: The name of the cache database which is opened for read/write. |
$LatestVersion = $result{"version:$Prob"}; |
|
|
Output: None - All data stored in cache. |
if ( $LatestVersion ) { |
|
for ( my $Version=1; $Version<=$LatestVersion; $Version++ ) { |
=back |
my $vkeys = $result{"$Version:keys:$Prob"}; |
|
my @keys = split(/\:/,$vkeys); |
=cut |
|
|
foreach my $Key (@keys) { |
sub SpaceColumns { |
if (($Key=~/\.(\w+)\.solved$/) && ($Key!~/^\d+\:/)) { |
my ($students,$studentInformation,$headings,$cache)=@_; |
my $Part = $1; |
|
$Tries = $result{"$Version:$Prob:resource.$Part.tries"}; |
# Initialize Lengths |
$ParCr = $result{"$Version:$Prob:resource.$Part.awarded"}; |
for(my $index=0; $index<(scalar @$headings); $index++) { |
my $Time = $result{"$Version:$Prob:timestamp"}; |
my @titleLength=split(//,$headings->[$index]); |
$TempHash{"$Part.Time"} = ($Time) ? $Time : 0; |
$cache->{$studentInformation->[$index].':columnWidth'}= |
$TempHash{"$Part.Tries"} = ($Tries) ? $Tries : 0; |
scalar @titleLength; |
$TempHash{"$Part.ParCr"} = ($ParCr) ? $ParCr : 0; |
} |
$TotalTries += $TempHash{"$Part.Tries"}; |
|
$TotParCr += $TempHash{"$Part.ParCr"}; |
foreach my $name (@$students) { |
#$r->print($Version.'---'.$Prob.'==='.$Time.'<br>'); |
foreach (@$studentInformation) { |
my $Val = $result{"$Version:$Prob:resource.$Part.solved"}; |
my @dataLength=split(//,$cache->{$name.':'.$_}); |
if ( $Val eq 'correct_by_student' ) |
my $length=(scalar @dataLength); |
{ $Wrongs = $Tries - 1; $Code = 'C'; } |
if($length > $cache->{$_.':columnWidth'}) { |
elsif ( $Val eq 'correct_by_override' ) |
$cache->{$_.':columnWidth'}=$length; |
{ $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}"; |
|
my $ptr = $TempHash{$part.'.PrOrd'}.':'.$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 .= $TempHash{$part.'.PrOrd'}.'='.$DisF.'+'.$Yes; |
|
|
|
#$r->print('<br>'.$DisFactor,'###',$DiscFac{$DisFactor}); |
|
$ptr .= ":$TempHash{$part.'.Tries'}". |
|
":$TempHash{$part.'.Wrongs'}". |
|
":$TempHash{$part.'.Code'}"; |
|
push (@list, $ptr); |
|
$TotalOpend++; |
|
$ProbTot++; |
|
} |
|
} |
} |
#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 = sprintf( "%.4f", $DisFac ); |
|
$DiscFac{$DisFactor}=$Dis; |
|
#$r->print('<br>'.$DisFactor,'###',$DiscFac{$DisFactor}); |
|
#my $time; |
|
#if ($ProbSolved){ |
|
#$time = int(($TimeTot/$ProbSolved)-10000000); |
|
#} |
|
#$DiscFac{($DisFactor.':'.$sname.':'.$ProbTot.':'.$TotalOpend.':'. |
|
# $TotalTries.':'.$ProbSolved.':'.$time)}=$Dis; |
|
} |
|
} |
} |
#$r->print($sname.' PrCr= '.$TotParCr.' Slvd= '.$ProbSolved.' Tries='.$TotalTries.'<br>'); |
|
|
return; |
} |
} |
|
|
|
sub PrepareData { |
|
my ($c, $cacheDB, $studentInformation, $headings,$r)=@_; |
|
|
# ------------------------------------------------------------ Build page table |
# Test for access to the cache data |
sub tracetable { |
my $courseID=$ENV{'request.course.id'}; |
my ($rid,$beenhere)=@_; |
my $isRecalculate=0; |
$rid=~/(\d+)\.(\d+)/; |
if(defined($ENV{'form.Recalculate'})) { |
$maps{&Apache::lonnet::declutter($hash{'map_id_'.$1})}='';#$hash{'title_'.$rid}; |
$isRecalculate=1; |
#$maps{$HWN}=$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; |
|
$P_Order++; |
|
$HWN=$P_Order; |
|
$mapsort{$HWN} = $rid.':'; |
|
#$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.'&'); |
|
|
|
$cols[$#cols+1]=($P_Order+1).':'.$frid; |
|
|
|
my $meta=$hash{'src_'.$frid}; |
|
my $PartNo = 0; |
|
if ($meta) { |
|
if ($meta=~/\.(problem|exam|quiz|assess|survey|form)$/) { |
|
foreach (split(/\,/,&Apache::lonnet::metadata($meta,'keys'))) { |
|
if ($_=~/^stores\_(\d+)\_tries$/) { |
|
&Apache::lonnet::metadata($meta,$_.'.part'); |
|
$P_Order++; |
|
$mapsort{$HWN} .= '&'.$P_Order; |
|
$PartNo++; |
|
$r->print('<br>'.$PartNo.'---'.$P_Order); |
|
} |
|
} |
|
} |
|
} |
|
} |
|
} else { |
|
$cols[$#cols+1]=($P_Order+1).':'.$rid; |
|
my $meta=$hash{'src_'.$rid}; |
|
my $PartNo = 0; |
|
if ($meta) { |
|
if ($meta=~/\.(problem|exam|quiz|assess|survey|form)$/) { |
|
foreach (split(/\,/,&Apache::lonnet::metadata($meta,'keys'))) { |
|
if ($_=~/^stores\_(\d+)\_tries$/) { |
|
&Apache::lonnet::metadata($meta,$_.'.part'); |
|
$P_Order++; |
|
$mapsort{$HWN} .= '&'.$P_Order; |
|
$PartNo++; |
|
} |
|
} |
|
} |
|
} |
|
} |
|
if (defined($hash{'to_'.$rid})) { |
|
foreach (split(/\,/,$hash{'to_'.$rid})){ |
|
&tracetable($hash{'goesto_'.$_},$beenhere); |
|
} |
|
} |
|
} |
} |
} |
|
|
|
sub MySort { |
my $isCached = &Apache::loncoursedata::TestCacheData($cacheDB, |
if ( $Pos > 0 ) { |
$isRecalculate); |
if ($ENV{'form.order'} eq 'Descending') {$b <=> $a;} |
if($isCached < 0) { |
else { $a <=> $b; } |
return "Unable to tie hash to db file."; |
} |
|
else { |
|
if ($ENV{'form.order'} eq 'Descending') {$b cmp $a;} |
|
else { $a cmp $b; } |
|
} |
} |
} |
|
|
|
sub Build_Statistics { |
# Download class list information if not using cached data |
$r->print(<<ENDPOP); |
my %cache; |
<script> |
unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT(),0640)) { |
popwin=open('','popwin','width=400,height=100'); |
return "Unable to tie hash to db file."; |
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(); |
|
# ---------------------------- 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); |
|
} |
} |
|
|
# -------------------- sorting the Data |
if(!$isCached) { |
$r->print('<script>popwin.document.popremain.remaining.value="'. |
my $processTopResourceMapReturn= |
'Calculating Discrimination Factors...";</script>'); |
&Apache::loncoursedata::ProcessTopResourceMap(\%cache, $c, $r); |
|
if($processTopResourceMapReturn ne 'OK') { |
@list = sort (@list); |
untie(%cache); |
|
return $processTopResourceMapReturn; |
|
} |
&Discriminant(); |
} |
|
|
$OpSel2=''; |
|
$OpSel1='selected'; |
|
|
|
$p_count = 0; |
|
my $nIdx = 0; |
|
my $dummy; |
|
my $p_val; |
|
my $ResId; |
|
my $NoElements = $#list + 1; |
|
#-------------------------------- loop for data representation |
|
foreach (sort keys %mapsort) { |
|
my ($Hid,$pr)=split(/\:/,$mapsort{$_}); |
|
my @lpr=split(/\&/,$pr); |
|
&CreateTable(1,$Hid); |
|
for (my $i=1; $i<=$#lpr; $i++) { |
|
my %storestats=(); |
|
my ($PrOrd,$Prob,$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; |
|
while ( $PrOrd == $lpr[$i] ) |
|
{ |
|
$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' ) { $StdNo--; } |
|
($PrOrd,$Prob,$Tries,$Wrongs,$Code)=split(/\:/,$list[$nIdx]); |
|
} |
|
|
|
$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*$StdDev; |
|
} |
|
|
|
#--------------------- Compute the Discrimination Factors |
|
my ($UpD,$UpNo)=split(/\:/,$DisUp{$lpr[$i]}); |
|
my ($LwD,$LwNo)=split(/\:/,$DisLow{$lpr[$i]}); |
|
$UpNo = ($UpNo) ? $UpNo : 0; |
|
$LwNo = ($LwNo) ? $LwNo : 0; |
|
my $U_D = sprintf("%.2f", $UpD); |
|
my $L_D = sprintf("%.2f", $LwD); |
|
my $DisFac = $UpD - $LwD; |
|
my $_Dis = sprintf("%.2f", $DisFac); |
|
|
|
#----------------- 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 = $PrOrd.':'.$Temp.':'.$StdNo.':'. |
|
$TotalTries.':'.$MxTries.':'.$Avg.':'. |
|
$YES.':'.$Override.':'.$Wrng.':'.$DoD.':'. |
|
$SD.':'.$Sk.':'.$_Dis.':'.$U_D.':'. |
|
$L_D.':'.$UpNo.':'.$LwNo.':'.$Prob; |
|
$CachData{($p_count-1)}=$join; |
|
|
|
$urlres=~/^(\w+)\/(\w+)/; |
|
if ($StdNo) { |
|
&Apache::lonnet::put('resevaldata',\%storestats,$1,$2); |
|
} |
|
#-------------------------------- Row of statistical table |
|
if ( $DiscFlag == 0 ) { |
|
&TableRow($join,$i,($p_count-1)); |
|
} |
|
} |
|
&CloseTable(); |
|
} |
|
#--------------------- close Progress Line |
|
$r->print('<script>popwin.close()</script>'); |
|
$r->rflush(); |
|
} |
|
|
|
sub Cache_Statistics { |
if($c->aborted()) { |
my @list = (); |
untie(%cache); |
my $Useful; |
return 'aborted'; |
my $UnUseful; |
|
my %myHeader = reverse( %Header ); |
|
$Pos = $myHeader{$ENV{'form.sort'}}; |
|
if ($Pos > 0) {$Pos++;} |
|
$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 $nIdx=0; |
|
|
|
if ( $Pos == 0 ) { |
|
foreach (sort keys %mapsort) { |
|
my ($Hid,$pr)=split(/\:/,$mapsort{$_}); |
|
&CreateTable(1,$Hid); |
|
my @lpr=split(/\&/,$pr); |
|
for (my $i=1; $i<=$#lpr; $i++) { |
|
my($Pre, $Post) = split(/\&/,$list[$nIdx]); |
|
&TableRow($Post,$i,$nIdx); |
|
$nIdx++; |
|
} |
|
&CloseTable(); |
|
} |
|
} |
|
else { |
|
&CreateTable(0); |
|
for ( my $nIdx = 0; $nIdx < $p_count; $nIdx++ ) { |
|
my($Pre, $Post) = split(/\&/,$list[$nIdx]); |
|
&TableRow($Post,$nIdx,$nIdx); |
|
} |
|
&CloseTable(); |
|
} |
} |
} |
|
|
|
sub TableRow { |
my $classlist=&Apache::loncoursedata::DownloadClasslist($courseID, |
my ($Str,$Idx,$RealIdx)=@_; |
$cache{'ClasslistTimestamp'}, |
my($PrOrd,$Temp,$StdNo,$TotalTries,$MxTries,$Avg,$YES, |
$c); |
$Override,$Wrng,$DoD,$SD,$Sk,$_Dis,$U_D,$L_D,$UpNo,$LwNo, |
foreach (keys(%$classlist)) { |
$Prob)=split(/\:/,$Str); |
if(/^(con_lost|error|no_such_host)/i) { |
$r->print( "\n".'<tr>'. |
untie(%cache); |
"\n".'<td>'.($RealIdx+1).'</td>'. |
return "Error getting student data."; |
"\n".'<td bgcolor="#FFFFFF">'.$Temp.'</td>'. |
} |
"\n".'<td bgcolor="#EEFFCC"> '.$StdNo.'</td>'. |
} |
"\n".'<td bgcolor="#EEFFCC">'.$TotalTries.'</td>'. |
|
"\n".'<td bgcolor="#EEFFCC">'.$MxTries.'</td>'. |
|
"\n".'<td bgcolor="#DDFFFF">'.$Avg.'</td>'. |
|
"\n".'<td bgcolor="#DDFFFF"> '.$YES.'</td>'. |
|
"\n".'<td bgcolor="#DDFFFF"> '.$Override.'</td>'. |
|
"\n".'<td bgcolor="#FFDDDD"> '.$Wrng.'</td>'. |
|
"\n".'<td bgcolor="#FFDDDD">'.$DoD.'</td>'. |
|
"\n".'<td bgcolor="#DDFFDD"> '.$SD.'</td>'. |
|
"\n".'<td bgcolor="#DDFFDD"> '.$Sk.'</td>'. |
|
"\n".'<td bgcolor="#FFDDCC"> '.$_Dis.'</td>'. |
|
"\n".'<td bgcolor="#FFFFDD"> '.$U_D.'</td>'. |
|
"\n".'<td bgcolor="#FFFFDD"> '.$L_D.'</td>'. |
|
"\n".'<td bgcolor="#FFFFDD"> '.$UpNo.'</td>'. |
|
"\n".'<td bgcolor="#FFFFDD"> '.$LwNo.'</td>'. |
|
"\n".'</tr>' ); |
|
$GraphDat{$RealIdx}=$DoD.':'.$Wrng; |
|
} |
|
|
|
# ------------------------------------------- Prepare data for Graphical chart |
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'}); |
|
$cache{'download'} = 'false'; |
|
if(&Apache::loncoursedata::DownloadStudentCourseData(\@who, 'false', |
|
$cacheDB, 'true', |
|
'false', $courseID, |
|
$r, $c) ne 'OK') { |
|
untie(%cache); |
|
return 'Stop at download individual'; |
|
} |
|
} elsif($cache{'DownloadAll'} ne 'false') { |
|
$cache{'DownloadAll'} = 'false'; |
|
my @allStudents; |
|
if($cache{'DownloadAll'} eq 'sorted') { |
|
@allStudents = @$students; |
|
} else { |
|
@allStudents = split(':::', $cache{'NamesOfStudents'}); |
|
} |
|
if(&Apache::loncoursedata::DownloadStudentCourseData(\@allStudents, |
|
'false', |
|
$cacheDB, 'true', |
|
'true', $courseID, |
|
$r, $c) ne 'OK') { |
|
untie(%cache); |
|
return 'Stop at download all'; |
|
} |
|
} |
|
|
sub GetGraphData { |
if($c->aborted()) { |
my $Tag = shift; |
untie(%cache); |
my $Col; |
return 'aborted'; |
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"); |
|
} |
|
} |
} |
} |
|
|
|
|
untie(%cache); |
|
|
sub initial { |
return ('OK', $students); |
# --------------------------------- 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; |
|
$DiscFlag=0; |
|
$P_Order=100000; |
|
$HWN=$P_Order; |
|
} |
} |
|
|
|
sub BuildClasslist { |
|
my ($cacheDB,$students,$studentInformation,$headings,$r)=@_; |
|
|
sub ClassList { |
my %cache; |
|
unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
&GetStatus(); |
return '<html><body>Unable to tie database.</body></html>'; |
|
} |
|
|
$cid=$ENV{'request.course.id'}; |
my $Str=''; |
my $chome=$ENV{'course.'.$cid.'.home'}; |
$Str .= '<table border="0"><tr><td bgcolor="#777777">'."\n"; |
my ($cdom,$cnum)=split(/\_/,$cid); |
$Str .= '<table border="0" cellpadding="3"><tr bgcolor="#e6ffff">'."\n"; |
# ----------------------- 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; |
|
my $now=time; |
|
unless ($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 $active=1; |
|
my $Status=$ENV{'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) { |
|
my $thisindex=$#students+1; |
|
$name=&Apache::lonnet::unescape($name); |
|
$students[$thisindex]=$name; |
|
my ($sname,$sdom)=split(/\:/,$name); |
|
|
|
#my %reply=&Apache::lonnet::idrget($sdom,$sname); |
|
#my $reply=&Apache::lonnet::reply('get:'.$sdom.':'.$sname. |
|
# ':environment:lastname&generation&firstname&middlename', |
|
# &Apache::lonnet::homeserver($sname,$sdom)); |
|
my $ssec=&usection($sdom,$sname,$cid,$Status); |
|
if ($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}=$sdom; |
|
} |
|
$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; |
my $displayString = '<td align="left"><a href="/adm/statistics?'; |
# foreach (sort keys %mapsort) { |
$displayString .= 'sort=LINKDATA">DISPLAYDATA </a></td>'."\n"; |
# $r->print('<br>'.$c.')'.$_.' ... '.$mapsort{$_}); |
$Str .= &Apache::lonhtmlcommon::CreateHeadings(\%cache, |
# $c++; |
$studentInformation, |
# } |
$headings, $displayString); |
#foreach(@cols) { |
$Str .= '</tr>'."\n"; |
# $c++; |
|
# $r->print('<br>'.$cols[$c]); |
|
#} |
|
#$r->print('<br> Count = '.$c); |
|
|
|
} |
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}.' '; |
|
} |
|
|
# ------------------------------------------------------------- End render page |
$Str .= '</td>'."\n"; |
else { |
} |
$r->print('<h3>Undefined course sequence</h3>'); |
|
} |
} |
&MapSecOptions(); |
|
} |
|
|
|
|
$Str .= '</tr>'."\n"; |
|
$Str .= '</table></td></tr></table>'."\n"; |
|
$r->print($Str); |
|
$r->rflush(); |
|
|
sub Menu { |
untie(%cache); |
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"/>'; |
|
$Ptr .= '<br><br>'; |
|
$Ptr .= '<input type=submit name=sort value="Student Assessment"/>'; |
|
$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(); |
|
} |
|
} |
|
|
|
sub StudentOptions { |
return; |
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 ); |
|
$r->rflush(); |
|
} |
} |
|
|
sub GetStatus { |
sub CreateMainMenu { |
|
my ($status, $reports)=@_; |
|
|
# $OpSelDis1=''; |
my $Str = ''; |
# $OpSelDis2=''; |
|
$OpSel1=''; |
$Str .= '<table border="0"><tbody><tr>'."\n"; |
$OpSel2=''; |
$Str .= '<td></td><td></td>'."\n"; |
$OpSel3=''; |
$Str .= '<td align="center"><b>Analysis Reports:</b></td>'."\n"; |
$OpSel4=''; |
$Str .= '<td align="center"><b>Student Status:</b></td></tr>'."\n"; |
|
$Str .= '<tr>'."\n"; |
# if ( $ENV{'form.DisType'} eq 'Total Number of Correct Answers' ) { |
$Str .= '<td align="center"><input type="submit" name="Refresh" '; |
# $OpSelDis1='selected'; |
$Str .= 'value="Refresh" /></td>'."\n"; |
# $CurDis=0; |
$Str .= '<td align="center"><input type="submit" name="DownloadAll" '; |
# } |
$Str .= 'value="Update All Student Data" /></td>'."\n"; |
# else { $OpSel2 = 'selected'; $CurDis = 1;} |
$Str .= '<td align="center">'; |
|
$Str .= '<select name="reportSelected" onchange="document.'; |
if ( $ENV{'form.order'} eq 'Descending' ) { $OpSel2='selected'; } |
$Str .= 'Statistics.submit()">'."\n"; |
else { $OpSel1 = 'selected'; } |
|
|
foreach (sort(keys(%$reports))) { |
my %myHeader = reverse( %Header ); |
next if($_ eq 'reportSelected'); |
$Pos = $myHeader{$ENV{'form.sort'}}; |
$Str .= '<option name="'.$_.'"'; |
if ($Pos == 0) { |
if($reports->{'reportSelected'} eq $reports->{$_}) { |
$OpSel1 = 'selected'; |
$Str .= ' selected=""'; |
$ENV{'form.order'}='Ascendig'; |
} |
} |
$Str .= '>'.$reports->{$_}.'</option>'."\n"; |
|
|
$CurMap = $ENV{'form.maps'}; |
|
if ( $CurMap eq '' ) { |
|
$CurMap = 'All Maps'; |
|
$OpSel3 = 'selected'; |
|
} |
|
$CurSec = $ENV{'form.section'}; |
|
if ( $CurSec eq '' ) { |
|
$CurSec = 'All Sections'; |
|
$OpSel4 = 'selected'; |
|
} |
} |
} |
$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', |
|
# 'activitylog' => 'Activity Log', |
|
'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"; |
|
|
|
$r->print(&Apache::lonhtmlcommon::Title('LON-CAPA Statistics')); |
|
|
|
my ($returnValue, $students) = &PrepareData($c, $cacheDB, |
|
\@studentInformation, |
|
\@headings,$r); |
|
if($returnValue ne 'OK') { |
|
$r->print($returnValue."\n".'</body></html>'); |
|
return OK; |
|
} |
|
if(!$c->aborted()) { |
|
&Apache::loncoursedata::CheckForResidualDownload($cacheDB, |
|
'true', 'true', |
|
$courseID, |
|
$r, $c); |
|
} |
|
|
|
my $GoToPage; |
|
if(tie(%cache,'GDBM_File',$cacheDB,&GDBM_READER(),0640)) { |
|
$GoToPage = $cache{'reportSelected'}; |
|
$reports{'reportSelected'} = $cache{'reportSelected'}; |
|
if(defined($cache{'reportKey'}) && |
|
!exists($reports{$cache{'reportKey'}}) && |
|
$cache{'reportKey'} ne 'false') { |
|
$reports{$cache{'reportKey'}} = $cache{'reportSelected'}; |
|
} |
|
|
sub MapSecOptions { |
if(defined($cache{'OptionResponses'})) { |
# ----------------------------------- Loading the Maps Combobox |
$reports{'problem_analysis'} = 'Problem Analysis'; |
my $Ptr = '<br>'; |
} |
$Ptr .= '<br><input type="submit" name="sort" value="Return to Menu" />'; |
|
$Ptr .= '<br><b> Select Map </b>'."\n". |
$r->print('<form name="Statistics" '); |
'<select name="maps">'."\n". |
$r->print('method="post" action="/adm/statistics">'); |
'<option '.$OpSel3.'>All Maps</option>'; |
$r->print(&CreateMainMenu($cache{'Status'}, \%reports)); |
foreach my $key ( sort keys %maps ) { |
$r->rflush(); |
$Ptr .= '<option'; |
untie(%cache); |
if ($CurMap eq $key) {$Ptr .= ' selected';} |
} else { |
$Ptr .= '>'.$key."</option>\n"; |
$r->print('<html><body>Unable to tie database.</body></html>'); |
} |
return OK; |
$Ptr .= '</select>'; |
} |
$Ptr .= ' '; |
|
|
if($GoToPage eq 'Activity Log') { |
# ----------------------------------- Loading the Sections Combobox |
&Apache::lonproblemstatistics::Activity(); |
$Ptr .= '<br><b>Select Section</b>'."\n". |
} elsif($GoToPage eq 'Problem Statistics') { |
'<select name="section">'."\n". |
&Apache::lonproblemstatistics::BuildProblemStatisticsPage($cacheDB, |
'<option '.$OpSel4.'>All Sections</option>'; |
$students, |
foreach my $key ( sort keys %section ) { |
$courseID, |
$Ptr .= '<option'; |
$c,$r); |
if ($CurSec eq $key) {$Ptr .= ' selected';} |
} elsif($GoToPage eq 'Problem Analysis') { |
$Ptr .= '>'.$key."</option>"."\n"; |
&Apache::lonproblemanalysis::BuildProblemAnalysisPage($cacheDB, $r); |
|
} elsif($GoToPage eq 'Student Assessment') { |
|
&Apache::lonstudentassessment::BuildStudentAssessmentPage($cacheDB, |
|
$students, |
|
$courseID, |
|
'Statistics', |
|
\@headings, |
|
$spacing, |
|
\@studentInformation, |
|
$r, $c); |
|
} elsif($GoToPage eq 'Analyze') { |
|
&Apache::lonproblemanalysis::BuildAnalyzePage($cacheDB, $students, |
|
$courseID, $r); |
|
} elsif($GoToPage eq 'DoDiffGraph' || $GoToPage eq 'PercentWrongGraph') { |
|
&Apache::lonproblemstatistics::BuildGraphicChart($GoToPage,$r,$cacheDB); |
|
} elsif($GoToPage eq 'Class list') { |
|
&BuildClasslist($cacheDB, $students, \@studentInformation, |
|
\@headings, $r); |
} |
} |
$Ptr .= '</select>'."\n"; |
|
|
|
$r->print( $Ptr ); |
$r->print('</form>'."\n"); |
|
$r->print("\n".'</body>'."\n".'</html>'); |
$r->rflush(); |
$r->rflush(); |
} |
|
|
|
|
return OK; |
|
} |
|
|
# ================================================================ Main Handler |
# ================================================================ Main Handler |
|
|
sub handler { |
sub handler { |
$r=shift; |
my $r=shift; |
|
|
if (&Apache::lonnet::allowed('vgr',$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 |
|
|
|
undef %hash; |
# $jr = $r; |
|
|
if ($ENV{'request.course.fn'}) { |
unless(&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) { |
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 { |
|
$ENV{'user.error.msg'}= |
$ENV{'user.error.msg'}= |
$r->uri.":vgr:0:0:Cannot view grades for complete course"; |
$r->uri.":vgr:0:0:Cannot view grades for complete course"; |
|
return HTTP_NOT_ACCEPTABLE; |
|
} |
|
|
|
# Set document type for header only |
|
if($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; |
return HTTP_NOT_ACCEPTABLE; |
} |
} |
|
|
|
$r->content_type('text/html'); |
|
$r->send_http_header; |
|
|
|
&BuildStatistics($r); |
|
|
|
return OK; |
} |
} |
1; |
1; |
__END__ |
__END__ |
|
|
|
|
|
|