Computation Progress
'+ - ''+ - ''); - popwin.document.close(); - -ENDPOP +=pod - $r->rflush(); -# ---------------------------- Gathering the Data of students' tries - my $index; - for ($index=0;$index<=$#students;$index++) { -#----------- update progress - $r->print(''); - $r->rflush(); +=item &SortStudents() + +Determines which students to display and in which order. Which are +displayed are determined by their status(active/expired). The order +is determined by the sort button pressed (default to username). The +type of sorting is username, lastname, or section. + +=over 4 + +Input: $students, $CacheData + +$students: A array pointer to a list of students (username:domain) + +$CacheData: A pointer to the hash tied to the cached data - &ExtractStudentData($students[$index],$cid); +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, $_); + } } -#--------------------- close Progress Line - $r->print(''); - $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); - - $Temp = ''.$Temp.''; - - 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; - - - $res = ''.$res.''; - - #$Map = ''.$res.''; - -#------------------------ 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".''); - $section{$ssec}=$ssec; - if ($CurSec eq 'All Sections' || $ssec eq $CurSec) { - $students[$StudNo]=$name; - $StuBox{$sname}=$ssec; - } - $StudNo++; - } - } - else { - $r->print('
Could not access course data
'); - } - $r->print("Total number of students : ".($#students+1)); - $r->rflush(); -# --------------- Find all assessments and put them into some linear-like order - &tracetable($firstres,'&'.$lastres.'&'); + # Download class list information if not using cached data + my %cache; + unless(tie(%cache,'GDBM_File',$cacheDB,&GDBM_WRCREAT(),0640)) { + return "Unable to tie hash to db file."; } -# ------------------------------------------------------------- End render page - else { - $r->print('Undefined course sequence
'); +# if(!$isCached) { + my $processTopResourceMapReturn= + &Apache::loncoursedata::ProcessTopResourceMap(\%cache, $c); + if($processTopResourceMapReturn ne 'OK') { + untie(%cache); + return $processTopResourceMapReturn; + } + # } + + if($c->aborted()) { + untie(%cache); + return 'aborted'; } - &MapSecOptions(); -} + 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 Menu { - my $InpStr = $ENV{'form.sort'}; - if ( $InpStr eq 'DoDiff Graph' || $InpStr eq '%Wrong Graph' ) { - &GetGraphData($InpStr); - $r->print('
');
- }
- else {
- $r->print('
');
-# ---------------------------------------------------------------- Course title
- $r->print('Course : "'. - $ENV{'course.'.$ENV{'request.course.id'}. - '.description'}.'"
'.localtime().'
'); -# ------------------------------- This is going to take a while, produce output - $r->rflush(); - - $r->print("\n".''. - "\n".''. - "\n".''); - $r->rflush(); + if($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; + + my $download = $cache{'download'}; + my $downloadAll = $cache{'DownloadAll'}; + my @allStudents=(); + if($download ne 'false') { + $cache{'download'} = 'false'; + } elsif($downloadAll ne 'false') { + $cache{'DownloadAll'} = 'false'; + if($downloadAll eq 'sorted') { + @allStudents = @$students; + } else { + @allStudents = split(':::', $cache{'NamesOfStudents'}); + } } + + untie(%cache); + + if($download ne 'false') { + my @who = ($download); + if(&Apache::loncoursedata::DownloadStudentCourseData(\@who, 'false', + $cacheDB, 'true', + 'false', $courseID, + $r, $c) ne 'OK') { + return 'Stop at download individual'; + } + } elsif($downloadAll ne 'false') { + if(&Apache::loncoursedata::DownloadStudentCourseData(\@allStudents, + 'false', + $cacheDB, 'true', + 'true', $courseID, + $r, $c) ne 'OK') { + return 'Stop at download all'; + } + } + + return ('OK', $students); } -sub StudentOptions { - my $OpSel5=''; - $CurStu = $ENV{'form.student'}; - if ( $CurStu eq '' ) { - $CurStu = 'All Students'; - $OpSel5 = 'selected'; - } - my $Ptr =''; -# ----------------------------------- Loading the Students Combobox - $Ptr .= 'Select Student'."\n". - ''; - $Ptr .= '
'; - $r->print( $Ptr ); - $r->rflush(); +sub DisplayClasslist { + my ($r)=@_; + # + my @Fields = ('fullname','username','domain','id','section'); + # + my $Str=''; + $Str .= '
'."\n";
+ $Str .= '
|
| Select Sections'; +# $Ptr .= ' | '."\n"; +# $Ptr .= ''."\n"; +# my @sectionsSelected = split(':',$cache{'sectionsSelected'}); +# my @sections = split(':',$cache{'sectionList'}); +# $Ptr .= &Apache::lonhtmlcommon::MultipleSectionSelect(\@sections, +# \@sectionsSelected, +# 'Statistics'); +# $Ptr .= ' |
'; +# $r->print($Ptr); +# $r->rflush(); +# my %mySections = (); +# foreach (@sections) { $mySections{$_} = 'True'; } +# $r->print("
$cache{'sectionsSelected'}
"); + + my $Str=''; + $Str .= '
'."\n";
+ $Str .= '
|
'; - $Ptr .= '
'; - $Ptr .= '
Select Map '."\n". - ''; - $Ptr .= ' '; - -# ----------------------------------- Loading the Sections Combobox - $Ptr .= '
Select Section'."\n". - '