' );
- 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".'
";
- }
- $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'}";
- }
+use Apache::loncommon;
+use Apache::loncoursedata;
+use Apache::lonhtmlcommon;
+use Apache::lonmysql;
+use Apache::lonlocal;
+use Time::HiRes;
+#
+# Statistics Packages
+use Apache::lonproblemanalysis();
+use Apache::lonsubmissiontimeanalysis();
+use Apache::loncorrectproblemplot();
+use Apache::lonproblemstatistics();
+use Apache::lonstudentassessment();
+use Apache::lonpercentage;
+use Apache::lonstudentsubmissions();
+use Apache::lonsurveyreports();
+
+#######################################################
+#######################################################
+
+=pod
+
+=item Package Variables
+
+=item @FullClasslist The full classlist
+
+=item @Students The students we are concerned with for this invocation
+
+=item @Sections The sections available in this class
+
+=item $curr_student The student currently being examined
+
+=item $prev_student The student previous in the classlist
+
+=item $next_student The student next in the classlist
+
+=over
+
+=cut
+
+#######################################################
+#######################################################
+#
+# Classlist variables
+#
+my $curr_student;
+my $prev_student;
+my $next_student;
+
+#######################################################
+#######################################################
+
+=pod
+
+=item &clear_classlist_variables()
+
+undef the following package variables:
+
+=over
+
+=item @FullClasslist
+
+=item @Students
+
+=item @Sections
+
+=item @SelectedSections
+
+=item %StudentData
+
+=item @StudentDataOrder
+
+=item @SelectedStudentData
+
+=item $curr_student
+
+=item $prev_student
+
+=item $next_student
+
+=back
+
+=cut
+
+#######################################################
+#######################################################
+sub clear_classlist_variables {
+ undef(@FullClasslist);
+ undef(@Students);
+ undef(@Sections);
+ undef(@SelectedSections);
+ undef(%StudentData);
+ undef(@SelectedStudentData);
+ undef($curr_student);
+ undef($prev_student);
+ undef($next_student);
+}
+
+#######################################################
+#######################################################
+
+=pod
+
+=item &PrepareClasslist()
+
+Build up the classlist information. The classlist information is kept in
+the following package variables:
+
+=over
+
+=item @FullClasslist
+
+=item @Students
+
+=item @Sections
+
+=item @SelectedSections
+
+=item %StudentData
+
+=item @SelectedStudentData
+
+=item $curr_student
+
+=item $prev_student
+
+=item $next_student
+
+=back
+
+$curr_student, $prev_student, and $next_student may not be defined, depending
+upon the calling context.
+
+=cut
+
+#######################################################
+#######################################################
+sub PrepareClasslist {
+ my %Sections;
+ &clear_classlist_variables();
+ #
+ # Retrieve the classlist
+ my $cid = $ENV{'request.course.id'};
+ my $cdom = $ENV{'course.'.$cid.'.domain'};
+ my $cnum = $ENV{'course.'.$cid.'.num'};
+ my ($classlist,$field_names) = &Apache::loncoursedata::get_classlist($cid,
+ $cdom,$cnum);
+ if (exists($ENV{'form.Section'})) {
+ if (ref($ENV{'form.Section'})) {
+ @SelectedSections = @{$ENV{'form.Section'}};
+ } elsif ($ENV{'form.Section'} !~ /^\s*$/) {
+ @SelectedSections = ($ENV{'form.Section'});
+ }
+ }
+ @SelectedSections = ('all') if (! @SelectedSections);
+ foreach (@SelectedSections) {
+ if ($_ eq 'all') {
+ @SelectedSections = ('all');
+ }
+ }
+ #
+ # Deal with instructors with restricted section access
+ if ($ENV{'request.course.sec'} !~ /^\s*$/) {
+ @SelectedSections = ($ENV{'request.course.sec'});
+ }
+ #
+ # Set up %StudentData
+ @StudentDataOrder = qw/fullname username domain id section status/;
+ foreach my $field (@StudentDataOrder) {
+ $StudentData{$field}->{'title'} = $field;
+ $StudentData{$field}->{'base_width'} = length($field);
+ $StudentData{$field}->{'width'} =
+ $StudentData{$field}->{'base_width'};
+ }
+ #
+ # get the status requested
+ $enrollment_status = 'Active';
+ $enrollment_status = $ENV{'form.Status'} if (exists($ENV{'form.Status'}));
+ #
+ # Process the classlist
+ while (my ($student,$student_data) = each (%$classlist)) {
+ my $studenthash = ();
+ for (my $i=0; $i< scalar(@$field_names);$i++) {
+ my $field = $field_names->[$i];
+ # Store the data
+ $studenthash->{$field}=$student_data->[$i];
+ # Keep track of the width of the fields
+ next if (! exists($StudentData{$field}));
+ my $length = length($student_data->[$i]);
+ if ($StudentData{$field}->{'width'} < $length) {
+ $StudentData{$field}->{'width'} = $length;
+ }
+ }
+ push (@FullClasslist,$studenthash);
+ #
+ # Build up a list of sections
+ my $section = $studenthash->{'section'};
+ if (! defined($section) || $section =~/^\s*$/ || $section == -1) {
+ $studenthash->{'section'} = 'none';
+ $section = $studenthash->{'section'};
+ }
+ $Sections{$section}++;
+ #
+ # Only put in the list those students we are interested in
+ foreach my $sect (@SelectedSections) {
+ if ( (($sect eq 'all') ||
+ ($section eq $sect)) &&
+ (($studenthash->{'status'} eq $enrollment_status) ||
+ ($enrollment_status eq 'Any'))
+ ){
+ push (@Students,$studenthash);
+ last;
}
- else {
- for(my $n=0; $n<$PartNo; $n++) {
- if ($PtrTry ne '') {$PtrTry .= ',';}
- $PtrTry .= "0";
- $PtrCod .= "-";
- }
- }
}
}
- $Str .= "\n".'
';
- $r->print($Str);
- $r->rflush();
+ #
+ # Put the consolidated section data in the right place
+ if ($ENV{'request.course.sec'} !~ /^\s*$/) {
+ @Sections = ($ENV{'request.course.sec'});
+ } else {
+ @Sections = sort {$a cmp $b} keys(%Sections);
+ unshift(@Sections,'all'); # Put 'all' at the front of the list
+ }
+ #
+ # Sort the Students
+ my $sortby = 'fullname';
+ $sortby = $ENV{'form.sort'} if (exists($ENV{'form.sort'}));
+ my @TmpStudents = sort { $a->{$sortby} cmp $b->{$sortby} ||
+ $a->{'fullname'} cmp $b->{'fullname'} } @Students;
+ @Students = @TmpStudents;
+ #
+ # Now deal with that current student thing....
+ $curr_student = undef;
+ if (exists($ENV{'form.SelectedStudent'})) {
+ my ($current_uname,$current_dom) =
+ split(':',$ENV{'form.SelectedStudent'});
+ my $i;
+ for ($i = 0; $i<=$#Students; $i++) {
+ next if (($Students[$i]->{'username'} ne $current_uname) ||
+ ($Students[$i]->{'domain'} ne $current_dom));
+ $curr_student = $Students[$i];
+ last; # If we get here, we have our student.
+ }
+ if (defined($curr_student)) {
+ if ($i == 0) {
+ $prev_student = undef;
+ } else {
+ $prev_student = $Students[$i-1];
+ }
+ if ($i == $#Students) {
+ $next_student = undef;
+ } else {
+ $next_student = $Students[$i+1];
+ }
+ }
+ }
+ #
+ if (exists($ENV{'form.StudentData'})) {
+ if (ref($ENV{'form.StudentData'}) eq 'ARRAY') {
+ @SelectedStudentData = @{$ENV{'form.StudentData'}};
+ } else {
+ @SelectedStudentData = ($ENV{'form.StudentData'});
+ }
+ } else {
+ @SelectedStudentData = ('username');
+ }
+ foreach (@SelectedStudentData) {
+ if ($_ eq 'all') {
+ @SelectedStudentData = ('all');
+ last;
+ }
+ }
+ #
+ return;
}
-# ------------------------------------------- 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(' ');
-
- my $Ptr = '';
-
- $Ptr .= ' Sorting Type: '."\n".
- ' '."\n";
- $Ptr .= ' ';
- $Ptr .= ''."\n";
- $Ptr .= ' ';
- $Ptr .= ''."\n";
-
- $Ptr .= '
'.
- ' #Stdnts: Total Number of Students opened the problem. '.
- ' Tries : Total Number of Tries for solving the problem. '.
- ' Mod : Maximunm Number of Tries for solving the problem. '.
- ' Mean : Average Number of the tries. [ Tries / #Stdns ] '.
- ' #YES : Number of students solved the problem correctly. '.
- ' #yes : Number of students solved the problem by override. '.
- ' %Wrng : Percentage of students tried to solve the problem but'.
- ' still incorrect. [ 100*((#Stdnts-(#YES+#yes))/#Stdnts) ] '.
- ' S.D. : Standard Deviation of the tries.'.
- '[ sqrt(sum((Xi - Mean)^2)) / (#Stdnts-1)'.
- ' where Xi is every student\'s tries ] '.
- ' Skew. : Skewness of the students tries.'.
- ' [ (sqrt( sum((Xi - Mean)^3) / #Stdnts)) / (S.D.^3) ] '.
-# ' DoDiff : Degree of Difficulty of the problem. [ Tries/(#YES+#yes+0.1) ] '.
- ' DoDiff : Degree of Difficulty of the problem. [ 1 - ((#YES+#yes) / Tries) ] '.
-# ' Dis.F. : Discrimination Factor. [ Sum of Partial Credits Awarded / Total Number of Tries in %27 upper and lower students]'.
- '
' );
- $GraphDat{$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");
- }
- }
-}
-
-
-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;
-}
-
-
-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.' ');
- $section{$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.'&');
+Returns html for a selection box allowing the user to choose one (or more)
+of the fields of student data available (fullname, username, id, section, etc)
+
+=over 4
+
+=item $elementname The name of the HTML form element
+
+=item $status 'multiple' or 'single' selection box
+
+=item $numvisible The number of options to be visible
+
+=back
+
+=cut
+
+##############################################
+##############################################
+sub StudentDataSelect {
+ my ($elementname,$status,$numvisible)=@_;
+ if ($numvisible < 1) {
+ return;
+ }
+ #
+ # Build the form element
+ my $Str = "\n";
+ $Str .= '\n";
+ return $Str;
+}
+
+##############################################
+##############################################
+
+=pod
+
+=item &MapSelect($elementname,$status,$numvisible,$restriction)
+
+Returns html for a selection box allowing the user to choose one (or more)
+of the sequences in the course. The values of the sequences are the symbs.
+If the top sequence is selected, the value 'top' will result.
+
+=over 4
+
+=item $elementname The name of the HTML form element
+
+=item $status 'multiple' or 'single' selection box
+
+=item $numvisible The number of options to be visible
+
+=item $restriction Code reference to subroutine which returns true or
+false. The code must expect a reference to a sequence data structure.
+
+=back
+
+=cut
+
+##############################################
+##############################################
+sub MapSelect {
+ my ($elementname,$status,$numvisible,$restriction)=@_;
+ if ($numvisible < 1) {
+ return;
+ }
+ #
+ # Set up array of selected items
+ &SetSelectedMaps($elementname);
+ #
+ # Set up the restriction call
+ if (! defined($restriction)) {
+ $restriction = sub { 1; };
+ }
+ #
+ # Build the form element
+ my $Str = "\n";
+ $Str .= '\n";
+ return $Str;
+}
+
+##############################################
+##############################################
+
+=pod
+
+=item &SectionSelect($elementname,$status,$numvisible)
+
+Returns html for a selection box allowing the user to choose one (or more)
+of the sections in the course.
+
+Uses the package variables @Sections and @SelectedSections
+=over 4
+
+=item $elementname The name of the HTML form element
+
+=item $status 'multiple' or 'single' selection box
+
+=item $numvisible The number of options to be visible
+
+=back
+
+=cut
-#my $c=0;
-#foreach(@mapsort) {
-# $c++;
-# $r->print(' '.$mapsort[$c]);
-#}
-#$r->print(' Count = '.$c);
-
- }
-
-# ------------------------------------------------------------- End render page
- else {
- $r->print('
'.
+ &mt('There are no previously enrolled students in the selected sections.').
+ '
';
+ }
+ }
+ $Str.= ''.
+ &mt('Click here to return to the chart').'';
+ $r->print($Str);
+ $r->rflush();
+ return;
+ }
+
+ # "Click" is asinine but it is probably not my place to change the world.
+ $Str .= '
Click on a students name or username to view their chart
\n";
+ $Str .= ' '.(' 'x8).$reportdata->{'short_description'}.
+ "\n";
+ }
+ $Str .="\n";
+ #
+ return $Str;
+}
+
+##############################################
+##############################################
+sub handler {
+ my $r=shift;
+ my $c = $r->connection();
+ #
+ # Check for overloading
+ my $loaderror=&Apache::lonnet::overloaderror($r);
+ if ($loaderror) { return $loaderror; }
+ $loaderror=
+ &Apache::lonnet::overloaderror($r,
+ $ENV{'course.'.$ENV{'request.course.id'}.'.home'});
+ if ($loaderror) { return $loaderror; }
+ #
+ # Check for access
+ if (! &Apache::lonnet::allowed('vgr',$ENV{'request.course.id'})) {
+ $ENV{'user.error.msg'}=
+ $r->uri.":vgr:0:0:Cannot view grades for complete course";
+ if (! &Apache::lonnet::allowed('vgr',
+ $ENV{'request.course.id'}.'/'.$ENV{'request.course.sec'})) {
+ $ENV{'user.error.msg'}=
+ $r->uri.":vgr:0:0:Cannot view grades with given role";
+ return HTTP_NOT_ACCEPTABLE;
+ }
+ }
+ #
+ # Send the header
+ &Apache::loncommon::no_cache($r);
+ &Apache::loncommon::content_type($r,'text/html');
+ $r->send_http_header;
+ if ($r->header_only) { return OK; }
+ #
+ # Extract form elements from query string
+ &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
+ ['sort','reportSelected',
+ 'SelectedStudent']);
+ #
+ # Give the LON-CAPA page header
+ $r->print(''.
+ &mt('Course Statistics and Charts').
+ "\n".
+ &Apache::loncommon::bodytag('Course Statistics and Charts'));
+ $r->rflush();
+ #
+ # Either print out a menu for them or send them to a report
+ &Apache::lonhtmlcommon::clear_breadcrumbs();
+ &Apache::lonhtmlcommon::add_breadcrumb({href=>'/adm/statistics',
+ title=>'Statistics',
+ text =>'Statistics',
+ faq=>139,
+ bug=>'Statistics and Charts'});
+ if (! exists($ENV{'form.reportSelected'}) ||
+ $ENV{'form.reportSelected'} eq '') {
+ $r->print(&Apache::lonhtmlcommon::breadcrumbs
+ (undef,&mt('Statistics Main Page')).
+ &CreateMainMenu());
+ } else {
+ #
+ if (! &Apache::lonmysql::verify_sql_connection()) {
+ my $serveradmin = $r->dir_config('lonAdmEMail');
+ $r->print('
'.
+ &mt('Unable to connect to database!').
+ '
');
+ $r->print('
'.
+ &mt('Please notify the server administrator ').
+ ''.$serveradmin.'
');
+ $r->print('
'.
+ &mt('Course Statistics and Charts cannot be '.
+ 'retrieved until the database is restarted. '.
+ 'Your data is intact but cannot be displayed '.
+ 'at this time.').'
');
- }
- else {
- $r->print('
');
-# ---------------------------------------------------------------- Course title
- $r->print('