--- loncom/interface/statistics/lonstudentsubmissions.pm	2005/02/02 18:53:32	1.30
+++ loncom/interface/statistics/lonstudentsubmissions.pm	2010/04/12 16:28:22	1.59
@@ -1,6 +1,6 @@
 # The LearningOnline Network with CAPA
 #
-# $Id: lonstudentsubmissions.pm,v 1.30 2005/02/02 18:53:32 matthew Exp $
+# $Id: lonstudentsubmissions.pm,v 1.59 2010/04/12 16:28:22 bisitz Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -27,7 +27,7 @@
 package Apache::lonstudentsubmissions;
 
 use strict;
-use Apache::lonnet();
+use Apache::lonnet;
 use Apache::loncommon();
 use Apache::lonhtmlcommon();
 use Apache::loncoursedata();
@@ -37,6 +37,9 @@ use Apache::lonstathelpers;
 use HTML::Entities();
 use Time::Local();
 use Spreadsheet::WriteExcel();
+use lib '/home/httpd/lib/perl/';
+use LONCAPA;
+  
 
 my @SubmitButtons = ({ name => 'SelectAnother',
                        text => 'Choose a different Problem' },
@@ -63,16 +66,18 @@ sub BuildStudentSubmissionsPage {
     my @Students = @Apache::lonstatistics::Students;
     #
     if (@Students < 1) {
-        $r->print('<h2>There are no students in the sections selected</h2>');
+        $r->print('<div class="LC_warning">'
+                 .&mt('There are no students in the sections selected.')
+                 .'</div>');
     }
     #
     my @CacheButtonHTML = 
         &Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status',
-                                   '<h3>'.&mt('Loading student data').'</h3>');
+                                   '<div class="LC_info">'.&mt('Loading student data...').'</div>');
     $r->rflush();
     #
-    if (exists($ENV{'form.problemchoice'}) && 
-        ! exists($ENV{'form.SelectAnother'})) {
+    if (exists($env{'form.problemchoice'}) && 
+        ! exists($env{'form.SelectAnother'})) {
         foreach my $button (@SubmitButtons) {
             if ($button->{'name'} eq 'break') {
                 $r->print("<br />\n");
@@ -100,7 +105,7 @@ sub BuildStudentSubmissionsPage {
         # Get resource objects
         my $navmap = Apache::lonnavmaps::navmap->new();
         if (!defined($navmap)) {
-            $r->print('<h1>'.&mt("Internal error").'</h1>');
+            $r->print('<div class="LC_error">'.&mt("Internal error").'</div>');
             return;
         }
         my %already_seen;
@@ -110,6 +115,9 @@ sub BuildStudentSubmissionsPage {
             push(@Problems,$resource);
         }
         # 
+        $r->print('<h4>'.
+                  &Apache::lonstatistics::section_and_enrollment_description().
+                  '</h4>');
         if (! scalar(@Problems) || ! defined($Problems[0])) {
             $r->print('resource is undefined');
         } else {
@@ -117,16 +125,14 @@ sub BuildStudentSubmissionsPage {
                 my $resource = $Problems[0];
                 $r->print('<h1>'.$resource->title.'</h1>');
                 $r->print('<h3>'.$resource->src.'</h3>');
-                if ($ENV{'form.renderprob'} eq 'true') {
-                    $r->print(
-                              &Apache::lonstathelpers::render_resource({src => $resource->src})
-                              );
+                if ($env{'form.renderprob'} eq 'true') {
+                    $r->print(&Apache::lonstathelpers::render_resource($resource));
                     $r->rflush();
                 }
             }
-            if ($ENV{'form.output'} eq 'excel') {
+            if ($env{'form.output'} eq 'excel') {
                 &prepare_excel_output($r,\@Problems,\@Students);
-            } elsif ($ENV{'form.output'} eq 'csv') {
+            } elsif ($env{'form.output'} eq 'csv') {
                 &prepare_csv_output($r,\@Problems,\@Students);
             } else {
                 &prepare_html_output($r,\@Problems,\@Students);
@@ -141,7 +147,7 @@ sub BuildStudentSubmissionsPage {
                   &mt('Computing correct answers greatly increasese the amount of time required to prepare a report.').
                   '</p>');
         $r->print('<p>'.
-                  &mt('please select problems and use the <b>Prepare Report</b> button to continue.').
+                  &mt('Please select problems and use the [_1]Prepare Report[_2] button to continue.','<b>','</b>').
                   '</p>');
         $r->print(&Apache::lonstathelpers::MultipleProblemSelector
                   (undef,'problemchoice','Statistics'));
@@ -149,6 +155,23 @@ sub BuildStudentSubmissionsPage {
 }
 
 ##
+## get_extra_response_headers
+##
+sub get_extra_response_headers {
+    my @extra_resp_headers;
+    if ($env{'form.correctans'} eq 'true') {
+        push(@extra_resp_headers,'Correct');
+    } 
+    if ($env{'form.prob_status'} eq 'true') {
+        push(@extra_resp_headers,'Award Detail'); 
+        push(@extra_resp_headers,'Time');
+        push(@extra_resp_headers,'Attempt');
+        push(@extra_resp_headers,'Awarded');
+    }
+    return @extra_resp_headers;
+}
+
+##
 ## get_headers:
 ##     return the proper headers for the given response 
 sub get_headers {
@@ -172,6 +195,8 @@ sub get_headers {
             shift(@basic_headers);  # Get rid of 'Correct'
         }
         @headers = (@foils,@basic_headers);
+    } elsif (lc($resptype) eq 'task') {
+        @headers = ('Grader','Status',@basic_headers,'Submission');
     } else {
         @headers = ('Submission',@basic_headers);
     }
@@ -197,20 +222,15 @@ sub prepare_html_output {
     }
     #
     # Compute the number of columns per response
-    my @extra_resp_headers;
-    if ($ENV{'form.correctans'} eq 'true') {
-        push(@extra_resp_headers,'Correct');
-    } 
-    if ($ENV{'form.prob_status'} eq 'true') {
-        push(@extra_resp_headers,'Award Detail'); 
-        push(@extra_resp_headers,'Time');
-        push(@extra_resp_headers,'Attempt');
-        push(@extra_resp_headers,'Awarded');
-    }
-    my $response_multiplier = scalar(@extra_resp_headers);
+    my @extra_resp_headers = &get_extra_response_headers();
     #
     # Create the table header
-    my @student_columns = ('username','domain','id');
+    my @student_columns = @Apache::lonstatistics::SelectedStudentData;
+    foreach (@student_columns) {
+        if($_ eq 'all') {
+            @student_columns = ('fullname','username','domain','id','section','status','groups','comments');
+        }
+    }
     #
     my %headers;
     my $student_column_count = scalar(@student_columns);
@@ -225,8 +245,7 @@ sub prepare_html_output {
     #
     my %problem_analysis;
     foreach my $prob (@$problems) {
-        my $src = $prob->src;
-        my %analysis = &Apache::lonstathelpers::get_problem_data($src);
+        my %analysis = &Apache::lonstathelpers::get_problem_data($prob->src);
         $problem_analysis{$prob->src}=\%analysis;
         #
         my $prob_span = 0;
@@ -251,20 +270,27 @@ sub prepare_html_output {
                     $headers{'response'} .=
                         '<th colspan="'.scalar(@headers).'">'.
                         &mt('Response [_1]',$responses->[$i]).'</th>';
-                    $headers{'student'}.= '<th>'.join('</th><th><nobr>',
+                    $headers{'student'}.= '<th><span class="LC_nobreak">'.
+                                          join('</span></th><th><span class="LC_nobreak">',
                                                       @headers).
-                                                          '</nobr></th>';
+                                                          '</span></th>';
                 }
             }
+            if ($part_span == 0) {
+                next;
+            }
             if (! $single_part) {
                 my $tmpname = $partid;
                 if ($partid =~/^\d+$/) {
                     $tmpname = $prob->part_display($partid);
                 }
+                if ($tmpname !~ /^part/) {
+                    $tmpname = 'Part '.$tmpname;
+                }
                 $headers{'part'} .= qq{<th colspan="$part_span">$tmpname</th>};
                 $nonempty_part_headers = 1;
             } else {
-                $headers{'part'} .= qq{<th colspan="$part_span">&nbsp</th>};
+                $headers{'part'} .= qq{<th colspan="$part_span">&nbsp;</th>};
             }
             $prob_span += $part_span;
         }
@@ -297,9 +323,7 @@ sub prepare_html_output {
     my $count;
     $r->print($/.$full_header.$/);
     my $row_class = 'odd';   # css 
-    my $mycount = 10;
     foreach my $student (@$students) {
-        last if ($mycount-- < 1);
         my $student_row_data;
         if ($count++ >= 30) {
             $r->print('</table>'.$/.$full_header.$/);
@@ -307,8 +331,16 @@ sub prepare_html_output {
         }
         last if ($c->aborted());
         foreach my $field (@student_columns) {
-            $student_row_data .= 
-                '<td valign="top">'.$student->{$field}.'</td>';
+            $student_row_data .= '<td valign="top">';
+            # handle comments like in lonstudentassessment.pm
+            if($field eq 'comments') {
+                $student_row_data .= 
+                        '<a href="/adm/'.$student->{'domain'}.'/'.
+                        $student->{'username'}.'/'.'aboutme#coursecomment">'.&mt('Comments').'</a>';
+            } else {
+                $student_row_data .= $student->{$field};
+            }
+            $student_row_data .= '</td>';
         }
         #
         # Figure out what it is we need to output for this student
@@ -332,8 +364,9 @@ sub prepare_html_output {
                                                'html','normal',
                                                @extra_resp_headers);
                     my $width = scalar(@headers);
+                    next if ($width < 1);
                     my $resp_data;
-                    $resp_data->{'fake'} = qq{<td colspan="$width">&nbsp</td>};
+                    $resp_data->{'fake'} = qq{<td colspan="$width">&nbsp;</td>};
                     if (! defined($results)) {
                         $results = [];
                     }
@@ -342,7 +375,7 @@ sub prepare_html_output {
                         $maxrow = scalar(@$results);
                     }
                     for (my $j=scalar(@$results)-1;$j>=0;$j--) {
-                        if ($ENV{'form.all_sub'} ne 'true') {
+                        if ($env{'form.all_sub'} ne 'true') {
                             next if ($j ne scalar(@$results)-1);
                         }
                         my $response = &hashify_response($results->[$j],
@@ -357,6 +390,14 @@ sub prepare_html_output {
                                                      $response,
                                                      $single_response).
                                  '</td>');
+			} elsif (lc($resptype) eq 'task') {
+			    my $results = 
+				&html_task_results(\@headers,
+						   $prob,$partid,$respid,
+						   $response,$resptype);
+			    if ($results) {
+				push(@{$resp_data->{'real'}},$results);
+			    }
                         } else {
                             push(@{$resp_data->{'real'}},
                                  &html_non_essay_results(\@headers,
@@ -416,13 +457,14 @@ sub prepare_html_output {
             undef(@essays);
         }
     } # end of student loop
+    $r->print('</table>'.$/);
     return;
 }
 
 sub hashify_response {
     my ($response,$prob,$student,$partid,$respid) =@_;
     my $resp_hash = {};
-    if ($ENV{'form.correctans'} eq 'true') {
+    if ($env{'form.correctans'} eq 'true') {
         $resp_hash->{'Correct'} = 
             &Apache::lonstathelpers::get_student_answer
             ($prob,$student->{'username'},$student->{'domain'},
@@ -430,14 +472,27 @@ sub hashify_response {
     }
     $resp_hash->{'Submission'} = 
         $response->[&Apache::loncoursedata::RDs_submission()];
-    $resp_hash->{'Award Detail'} = 
-        $response->[&Apache::loncoursedata::RDs_awarddetail()];
     $resp_hash->{'Time'} = 
         $response->[&Apache::loncoursedata::RDs_timestamp()];
     $resp_hash->{'Attempt'} =
         $response->[&Apache::loncoursedata::RDs_tries()];
     $resp_hash->{'Awarded'} = 
         $response->[&Apache::loncoursedata::RDs_awarded()];
+    if ($prob->is_task()) {
+	$resp_hash->{'Grader'} = 
+	    $response->[&Apache::loncoursedata::RDs_response_eval_2()];
+	if ($resp_hash->{'Attempt'} eq '0') {
+	    $resp_hash->{'Attempt'} = '';
+	}
+	$resp_hash->{'Award Detail'} = 
+	    $response->[&Apache::loncoursedata::RDs_part_award()];
+	$resp_hash->{'Status'} = 
+	    $response->[&Apache::loncoursedata::RDs_response_eval()];
+    } else {
+	$resp_hash->{'Award Detail'} = 
+	    $response->[&Apache::loncoursedata::RDs_awarddetail()];
+    }
+
     return $resp_hash;
 }
 
@@ -461,7 +516,7 @@ sub html_essay_results {
         if (defined($respid)) {
             $id .= ' '.$respid;
         }
-        $Str .= '<nobr>'.$id.'</nobr>'.('&nbsp;'x4);
+        $Str .= '<span class="LC_nobreak">'.$id.'</span>'.('&nbsp;'x4);
     }
     #
     shift(@$headers); # Get rid of the Submission header
@@ -470,11 +525,11 @@ sub html_essay_results {
         $correct = &html_format_essay_sub($response->{'Correct'});
         shift(@$headers);
     }
-    $Str .= '<nobr>'.
+    $Str .= '<span class="LC_nobreak">'.
         join('',
              map {
                  ('&nbsp;'x4).&mt($_.': [_1]',$response->{$_});
-             } @$headers).'</nobr>';
+             } @$headers).'</span>';
     if (@$headers || ! $single_response) {
         $Str .= '<br />';
     }
@@ -500,20 +555,34 @@ sub html_format_essay_sub {
     return $submission;
 }
 
+sub html_task_results {
+    my ($headers,$prob,$partid,$respid,$response,$resptype) = @_;
+    if (! ref($headers) || ref($headers) ne 'ARRAY' || ! scalar(@$headers)) {
+        return '';
+    }
+
+    my @values;
+    @values = map { $response->{$_}; } @$headers;
+
+    my $td = '<td valign="top">';
+    my $str = $td.join('</td>'.$td,@values).'</td>';
+    return $str;
+}
+
 sub html_non_essay_results {
     my ($headers,$prob,$partid,$respid,$response,$resptype) = @_;
     if (! ref($headers) || ref($headers) ne 'ARRAY' || ! scalar(@$headers)) {
         return '';
     }
     # 
-    my $submission = &HTML::Entities::decode($response->{'Submission'});
+    my $submission = &HTML::Entities::decode(&unescape($response->{'Submission'})); 
     return '' if (! defined($submission) || $submission eq '');
     $submission =~ s/\\\"/\"/g;
     $submission =~ s/\\\'/\'/g;
     if ($resptype eq 'radiobutton') {
         $submission = &HTML::Entities::encode($submission,'<>&"');
         $submission =~ s/=([^=])$//;
-        $submission = '<nobr>'.$submission.'</nobr>';
+        $submission = '<span class="LC_nobreak">'.$submission.'</span>';
     }
     $response->{'Submission'} = $submission;
     #
@@ -521,14 +590,14 @@ sub html_non_essay_results {
     if ($resptype =~ /^(option|match|rank)$/) {
         my %submission = 
             map { 
-                my ($foil,$value) = split('=',&Apache::lonnet::unescape($_));
+                my ($foil,$value) = split('=',&unescape($_));
                 ($foil,$value);
             } split('&',$response->{'Submission'});
         my %correct;
         if (exists($response->{'Correct'})) {
             %correct = 
                 map { 
-                    my ($foil,$value)=split('=',&Apache::lonnet::unescape($_));
+                    my ($foil,$value)=split('=',&unescape($_));
                     ($foil,$value);
                 } split('&',$response->{'Correct'});
         }
@@ -546,6 +615,8 @@ sub html_non_essay_results {
                     $option = $submission{$header};
                 }
                 push(@values,&HTML::Entities::encode($option));
+            } elsif ($original_header eq 'Time') {
+                push(@values,&Apache::lonlocal::locallocaltime($response->{$original_header}));
             } else {
                 # A normal column
                 push(@values,$response->{$original_header});
@@ -574,12 +645,24 @@ sub prepare_excel_output {
     #
     # Determine the number of columns in the spreadsheet
     my $columncount = 3; # username, domain, id
-    my $response_multiplier = 1;
-    $response_multiplier ++   if ($ENV{'form.correctans'} eq 'true');
-    $response_multiplier += 4 if ($ENV{'form.prob_status'} eq 'true');
+    my @extra_resp_headers = &get_extra_response_headers();
     my $lastprob;
+    my %problem_analysis;
     foreach my $prob (@$Problems) {
-        $columncount += ($response_multiplier * $prob->countResponses);
+        my %analysis = &Apache::lonstathelpers::get_problem_data($prob->src);
+        $problem_analysis{$prob->src}=\%analysis;
+        foreach my $partid (@{$prob->parts}) {
+            my $responses = [$prob->responseIds($partid)];
+            my $resptypes = [$prob->responseType($partid)];
+            for (my $i=0;$i<scalar(@$responses);$i++) {
+                my @headers = &get_headers($prob,$partid,$responses->[$i],
+                                           $resptypes->[$i],
+                                           $problem_analysis{$prob->src},
+                                           'excel','display',
+                                           @extra_resp_headers);
+                $columncount += scalar(@headers);
+            }
+        }
         last if ($columncount > 255);
         $lastprob = $prob;
     }
@@ -606,28 +689,15 @@ sub prepare_excel_output {
     $r->rflush();
     #
     # Create the excel spreadsheet
-    my $filename = '/prtspool/'.
-        $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
-        time.'_'.rand(1000000000).'.xls';
-    my $workbook  = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
-    if (! defined($workbook)) {
-        $r->log_error("Error creating excel spreadsheet $filename: $!");
-        $r->print('<p>'.&mt("Unable to create new Excel file.  ".
-                            "This error has been logged.  ".
-                            "Please alert your LON-CAPA administrator").
-                  '</p>');
-        return undef;
-    }
-    #
-    $workbook->set_tempdir('/home/httpd/perl/tmp');
-    #
-    my $format = &Apache::loncommon::define_excel_formats($workbook);
+    my ($workbook,$filename,$format) = 
+        &Apache::loncommon::create_workbook($r);
+    return if (! defined($workbook));
     my $worksheet  = $workbook->addworksheet('Student Submission Data');
     #
     # Add headers to the worksheet
     my $rows_output = 0;
     $worksheet->write($rows_output++,0,
-                    $ENV{'course.'.$ENV{'request.course.id'}.'.description'},
+                    $env{'course.'.$env{'request.course.id'}.'.description'},
                       $format->{'h1'});
     $rows_output++;
     my $cols_output = 0;
@@ -639,12 +709,13 @@ sub prepare_excel_output {
     $worksheet->write($partid_row,0,'Part ID',$format->{'bold'});
     $worksheet->write($respid_row,0,'Response ID',$format->{'bold'});
     # Student headers
-    my @StudentColumns = ('username','domain','id');
+    my @StudentColumns = ('username','domain','id','section');
     foreach (@StudentColumns) {
         $worksheet->write($header_row,$cols_output++,ucfirst($_),
                           $format->{'bold'});
     }
     # Problem headers
+    my %start_col;
     foreach my $prob (@$Problems) {
         my $title = $prob->compTitle;
         $worksheet->write($title_row,$cols_output,
@@ -655,20 +726,21 @@ sub prepare_excel_output {
             my $responses = [$prob->responseIds($partid)];
             my $resptypes = [$prob->responseType($partid)];
             for (my $i=0;$i<scalar(@$responses);$i++) {
+                $start_col{$prob->symb}->{$partid}->{$responses->[$i]}=
+                    $cols_output;
                 $worksheet->write($respid_row,$cols_output,
                                   $resptypes->[$i].', '.$responses->[$i]);
-                $worksheet->write($header_row,$cols_output,'Submission');
-                $cols_output++;
-                if ($ENV{'form.correctans'} eq 'true') {
-                    $worksheet->write($header_row,$cols_output,'Correct');
-                    $cols_output++;
-                }
-                if ($ENV{'form.prob_status'} eq 'true') {
-                    $worksheet->write($header_row,$cols_output++,
-                                      'Award Detail');
-                    $worksheet->write($header_row,$cols_output++,'Attempt');
-                    $worksheet->write($header_row,$cols_output++,'Time');
-                    $worksheet->write($header_row,$cols_output++,'Awarded');
+                my @headers = &get_headers($prob,$partid,$responses->[$i],
+                                           $resptypes->[$i],
+                                           $problem_analysis{$prob->src},
+                                           'excel','display',
+                                           @extra_resp_headers);
+                foreach my $text (@headers) {
+                    if ($text eq 'Time') {
+                        $worksheet->set_column($cols_output,$cols_output,undef,
+                                               $format->{'date'});
+                    } 
+                    $worksheet->write($header_row,$cols_output++,$text);
                 }
             }
         }
@@ -689,38 +761,47 @@ sub prepare_excel_output {
                               $student->{$field});
         }
         my $last_student_col = $cols_output-1;
-        my $response_count;
         foreach my $prob (@$Problems) {
             foreach my $partid (@{$prob->parts}) {
                 my @Response = $prob->responseIds($partid);
                 my @ResponseType = $prob->responseType($partid);
                 for (my $i=0;$i<=$#Response;$i++) {
-                    my $response_start_col = $last_student_col + 
-                        $response_count * $response_multiplier + 1;
-                    $response_count++;
                     my $respid   = $Response[$i];
                     my $resptype = $ResponseType[$i];
                     my $results = 
                         &Apache::loncoursedata::get_response_data_by_student
                         ($student,$prob->symb(),$respid);
+                    my @headers = &get_headers($prob,$partid,$respid,
+                                               $resptype,
+                                               $problem_analysis{$prob->src},
+                                               'excel','normal',
+                                               @extra_resp_headers);
+
                     if (! defined($results)) {
                         $results = [];
                     }
                     #
                     $rows_output = $student_row;
                     #
+                    my $response_start_col = $start_col{$prob->symb}->{$partid}->{$respid};
                     for (my $j=scalar(@$results)-1;$j>=0;$j--) {
                         $cols_output = $response_start_col;
-                        my $response = $results->[$j];
-                        if ($ENV{'form.all_sub'} ne 'true') {
+                        if ($env{'form.all_sub'} ne 'true') {
                             next if ($j ne scalar(@$results)-1);
                         }
-                        my $cols_output = &write_excel_row
-                            ($worksheet,
-                             $rows_output++,$cols_output,
-                             $response,$student,
-                             $prob,$partid,$respid,
-                             $format,$resptype);
+                        my $response = &hashify_response($results->[$j],
+                                                         $prob,
+                                                         $student,
+                                                         $partid,
+                                                         $respid);
+                        my @response_data = 
+                            &compile_response_data(\@headers,$response,
+                                                   $prob,$partid,$respid,
+                                                   $resptype,
+                                                   \&excel_format_item);
+                        $worksheet->write_row($rows_output++,$cols_output,
+                                              \@response_data);
+                        $cols_output+=scalar(@response_data);
                         if ($rows_output > $max_row) {
                             $max_row = $rows_output;
                         }
@@ -729,14 +810,13 @@ sub prepare_excel_output {
             }
         }
         # Fill in the remaining rows with the students data
-        for (my $row = $student_row+1;$row<=$max_row;$row++) {
+        for (my $row = $student_row+1;$row<$max_row;$row++) {
             my $cols = 0;
             foreach my $field (@StudentColumns) {
                 $worksheet->write($row,$cols++,
                                   $student->{$field});
             }
         }
-        $rows_output++;
         &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
                                                  'last student');
     }
@@ -757,56 +837,83 @@ sub prepare_excel_output {
     return;
 }
 
-sub write_excel_row {
-    my ($worksheet,$row,$col,$response,$student,$prob,$partid,$respid,
-        $format,$resptype) = @_;
-    # 
-    my $submission =$response->[&Apache::loncoursedata::RDs_submission()];
-    $submission = &excel_format_response($submission,$resptype);
-    $worksheet->write($row,$col++,$submission);
-    if ($ENV{'form.correctans'} eq 'true') {
-        my $correct = &Apache::lonstathelpers::get_student_answer
-            ($prob,$student->{'username'},$student->{'domain'},
-             $partid,$respid);
-        $correct =&excel_format_response($correct,$resptype);
-        $worksheet->write($row,$col++,$correct);
+sub compile_response_data {
+    my ($headers,$response,$prob,$partid,$respid,$resptype,$format) = @_;
+    if (! ref($headers) || ref($headers) ne 'ARRAY' || ! scalar(@$headers)) {
+        return ();
+    }
+    if (ref($format) ne 'CODE') {
+        $format = sub { return $_[0]; };
+    }
+    #
+    my $submission = 
+        &HTML::Entities::decode
+        (&unescape($response->{'Submission'}));
+    if (!$prob->is_task()) {
+	return () if (! defined($submission) || $submission eq '');
     }
-    if ($ENV{'form.prob_status'} eq 'true') {
-        $worksheet->write
-            ($row,$col++,
-             $response->[&Apache::loncoursedata::RDs_awarddetail()]);
-        $worksheet->write
-            ($row,$col++,$response->[&Apache::loncoursedata::RDs_tries()]);
-        $worksheet->write
-            ($row,$col++,
-             &Apache::lonstathelpers::calc_serial
-             ($response->[&Apache::loncoursedata::RDs_timestamp()]),
-             $format->{'date'});
-        $worksheet->write
-            ($row,$col++,$response->[&Apache::loncoursedata::RDs_awarded()]);
+    $submission =~ s/\\\"/\"/g;
+    $submission =~ s/\\\'/\'/g;
+    if ($resptype eq 'radiobutton') {
+        $submission =~ s/=([^=])$//;
     }
-    return $col;
+    $response->{'Submission'} = $submission;
+    #
+    my @values;
+    if ($resptype =~ /^(option|match|rank)$/) {
+        my %submission = 
+            map { 
+                my ($foil,$value) = split('=',&unescape($_));
+                ($foil,$value);
+            } split('&',$response->{'Submission'});
+        my %correct;
+        if (exists($response->{'Correct'})) {
+            %correct = 
+                map { 
+                    my ($foil,$value)=split('=',&unescape($_));
+                    ($foil,$value);
+                } split('&',$response->{'Correct'});
+        }
+        #
+        foreach my $original_header (@$headers) {
+            if ($original_header =~ /^_/) {
+                # '_' denotes a foil column
+                my ($header) = ($original_header =~ m/^_(.*)$/);
+                my $option = '';
+                if ( my ($foil) = ($header =~ /(.*) Correct$/)) {
+                    if (exists($correct{$foil})) {
+                        $option = $correct{$foil};
+                    }
+                } elsif (exists($submission{$header})) {
+                    $option = $submission{$header};
+                }
+                push(@values,&{$format}($option,$header));
+            } else {
+                # A normal column
+                push(@values,&{$format}($response->{$original_header},
+                                        $original_header));
+            }
+        }
+    } else {
+        @values = map { &{$format}($response->{$_},$_); } @$headers;
+    }
+    return @values;
 }
 
-sub excel_format_response {
-    my ($answer,$responsetype) = @_;
-    if ($responsetype eq 'radiobutton') {
-        $answer =~ s/=([^=])$//;
-    } elsif ($responsetype =~ /^(option|match)$/) {
-        $answer = join("\n",
-                       map { 
-                           &Apache::lonnet::unescape($_) ;
-                       } sort split('&',$answer)
-                       );
-    } elsif ($responsetype eq 'string') {
-        $answer =~ s/\\(n|r)/\n/g;
-        $answer =~ s/(\s*$|^\s*)//g;
-        $answer =~ s/\\\'/\'/g;
-    }
-    if ($answer =~ m/^=/) {
-        $answer = ' '.$answer;
+sub excel_format_item {
+    my ($item,$type) = @_;
+    if ($type eq 'Time') {
+        $item = &Apache::lonstathelpers::calc_serial($item);
+    } else {
+        if ($item =~ m/^=/) {
+            $item = ' '.$item;
+        }
+        $item =~ s/\\r//g;
+        $item =~ s/\\n/\n/g;
+        $item =~ s/(\s*$|^\s*)//g;
+        $item =~ s/\\\'/\'/g;
     }
-    return $answer;
+    return $item;
 }
 
 #########################################################
@@ -834,63 +941,64 @@ sub prepare_csv_output {
     # Open a file
     my $outputfile;
     my $filename = '/prtspool/'.
-        $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
+        $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
             time.'_'.rand(1000000000).'.csv';
     unless ($outputfile = Apache::File->new('>/home/httpd'.$filename)) {
         $r->log_error("Couldn't open $filename for output $!");
-        $r->print("Problems occured in writing the csv file.  ".
-                  "This error has been logged.  ".
-                  "Please alert your LON-CAPA administrator.");
+        $r->print(
+            '<p class="LC_error">'
+           .&mt('Problems occurred in writing the CSV file.')
+           .' '.&mt('This error has been logged.')
+           .' '.&mt('Please alert your LON-CAPA administrator.')
+           .'</p>'
+        );
         $outputfile = undef;
     }
     #
     # Compute the number of columns per response
-    my @extra_resp_headers;
-    if ($ENV{'form.correctans'} eq 'true') {
-        push(@extra_resp_headers,'Correct');
-    } 
-    if ($ENV{'form.prob_status'} eq 'true') {
-        push(@extra_resp_headers,'Award Detail'); 
-        push(@extra_resp_headers,'Time');
-        push(@extra_resp_headers,'Attempt');
-        push(@extra_resp_headers,'Awarded');
-    }
-    my $response_multiplier = scalar(@extra_resp_headers);
+    my @extra_resp_headers = &get_extra_response_headers();
     #
     # Create the table header
-    my @student_columns = ('username','domain','id');
+    my @student_columns = ('username','domain','id','section');
     #
     my %headers;
     push(@{$headers{'student'}},@student_columns);
     # Pad for the student data
     foreach my $row ('problem','part','response') {
-        foreach (@student_columns) {
-            push(@{$headers{$row}},'');
-        }
+        $headers{$row}=[map {''} @student_columns];
     }
     #
     # we put the headers into the %headers hash
-    my $prob_start_idx = 0;
+    my %problem_analysis;
+    my %start_col;
+    my $max_column = scalar(@student_columns);
     foreach my $prob (@$problems) {
-        $headers{'problem'}->[$prob_start_idx] = $prob->compTitle;
-        my $part_start_idx = $prob_start_idx;
+        my %analysis = &Apache::lonstathelpers::get_problem_data($prob->src);
+        $problem_analysis{$prob->src}=\%analysis;
+        $headers{'problem'}->[$max_column] = $prob->compTitle;
         foreach my $partid (@{$prob->parts}) {
-            $headers{'part'}->[$part_start_idx] = $prob->part_display($partid);
+            $headers{'part'}->[$max_column] = $prob->part_display($partid);
             my $responses = [$prob->responseIds($partid)];
+            my $resptypes = [$prob->responseType($partid)];
             for (my $i=0;$i<scalar(@$responses);$i++) {
-                my $resp_idx = $prob_start_idx + $response_multiplier * $i;
-                $headers{'response'}->[$resp_idx]=
+                my @headers = &get_headers($prob,$partid,$responses->[$i],
+                                           $resptypes->[$i],
+                                           $problem_analysis{$prob->src},
+                                           'csv','display',
+                                           @extra_resp_headers);
+                $start_col{$prob->symb}->{$partid}->{$responses->[$i]}=
+                    $max_column;
+                $headers{'response'}->[$max_column]=
                     &mt('Response [_1]',$responses->[$i]);
-                for (my $j=0;$j<=$#extra_resp_headers;$j++) {
-                    $headers{'student'}->[$resp_idx+$j]=$extra_resp_headers[$j];
+                for (my $j=0;$j<=$#headers;$j++) {
+                    $headers{'student'}->[$max_column+$j]=$headers[$j];
                 }
+                $max_column += scalar(@headers);
             }
-            $part_start_idx += scalar(@$responses)*$response_multiplier;
         }
-        $prob_start_idx += $prob->countResponses * $response_multiplier;
     }
     foreach my $row ('problem','part','response','student') {
-        print $outputfile '"'.join('","',map { ''; } @student_columns).'","'.
+        print $outputfile '"'.
             join('","',
                  map { 
                      &Apache::loncommon::csv_translate($_); 
@@ -901,15 +1009,17 @@ sub prepare_csv_output {
     foreach my $student (@$students) {
         last if ($c->aborted());
         my @rows;
-        my $prob_start_idx = 0;
         foreach my $prob (@$problems) {
-            my $part_start_idx = 0;
             foreach my $partid (@{$prob->parts}) {
                 my @responses = $prob->responseIds($partid);
                 my @response_type = $prob->responseType($partid);
                 for (my $i=0;$i<=$#responses;$i++) {
-                    my $resp_start_idx = $response_multiplier * $i;
                     my $respid   = $responses[$i];
+                    my $resptype = $response_type[$i];
+                    my @headers = &get_headers($prob,$partid,$respid,$resptype,
+                                               $problem_analysis{$prob->src},
+                                               'csv','normal',
+                                               @extra_resp_headers);
                     my $results = 
                         &Apache::loncoursedata::get_response_data_by_student
                         ($student,$prob->symb(),$respid);
@@ -917,30 +1027,31 @@ sub prepare_csv_output {
                         $results = [];
                     }
                     for (my $j=0; $j<scalar(@$results);$j++) {
-                        if ($ENV{'form.all_sub'} ne 'true') {
+                        if ($env{'form.all_sub'} ne 'true') {
                             next if ($j != 0);
                         }
                         my $idx = scalar(@$results) - $j - 1;
-                        my $response = $results->[$idx];
-                        my @data = &compile_response_data($response,$student,
+                        my $response = &hashify_response($results->[$idx],
+                                                         $prob,$student,
+                                                         $partid,$respid);
+                        my @data = &compile_response_data(\@headers,$response,
                                                           $prob,$partid,
-                                                          $respid);
+                                                          $respid,$resptype,
+                                                          \&csv_format_item);
+                        my $resp_start_idx =
+                            $start_col{$prob->symb}->{$partid}->{$respid};
                         for (my $k=0;$k<=$#data;$k++) {
-                            $rows[$j]->[$prob_start_idx + $part_start_idx +
-                                        $resp_start_idx + $k] = $data[$k];
+                            $rows[$j]->[$resp_start_idx + $k] = $data[$k];
                         }
                     }
                 }
-                $part_start_idx += scalar(@responses)*$response_multiplier;
             }
-            $prob_start_idx += $prob->countResponses * $response_multiplier;
         }
         foreach my $row (@rows) {
             print $outputfile '"'.join('","',
                                        map { $student->{$_}; }
                                        @student_columns).'"';
-                                           
-            for (my $i=0;$i<$prob_start_idx;$i++) {
+            for (my $i=scalar(@student_columns);$i<$max_column;$i++) {
                 my $value = &Apache::loncommon::csv_translate($row->[$i]);
                 $value ||='';
                 print $outputfile ',"'.$value.'"';
@@ -956,31 +1067,20 @@ sub prepare_csv_output {
     # Close the progress window
     &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
     #
-    # Tell the user where to get their csv file
+    # Tell the user where to get their CSV file
     $r->print('<br />'.
-              '<a href="'.$filename.'">'.&mt('Your csv file.').'</a>'."\n");
+              '<a href="'.$filename.'">'.&mt('Your CSV file.').'</a>'."\n");
     $r->rflush();
     return;
 }
 
-sub compile_response_data {
-    my ($response,$student,$prob,$partid,$respid) = @_;
-    my @rowdata;
-    push(@rowdata,&Apache::lonnet::unescape($response->[&Apache::loncoursedata::RDs_submission()]));
-    if ($ENV{'form.correctans'} eq 'true') {
-        my $correct = &Apache::lonstathelpers::get_student_answer
-            ($prob,$student->{'username'},$student->{'domain'},
-             $partid,$respid);
-        push(@rowdata,$correct);
-    }
-    if ($ENV{'form.prob_status'}) {
-        push(@rowdata,$response->[&Apache::loncoursedata::RDs_awarddetail()]);
-        push(@rowdata,&Apache::lonlocal::locallocaltime
-             ($response->[&Apache::loncoursedata::RDs_timestamp()]));
-        push(@rowdata,$response->[&Apache::loncoursedata::RDs_tries()]);
-        push(@rowdata,$response->[&Apache::loncoursedata::RDs_awarded()]);
+sub csv_format_item {
+    my ($item,$type) = @_;
+    if ($type eq 'Time') {
+        $item = localtime($item);
     }
-    return @rowdata;
+    $item =&Apache::loncommon::csv_translate($item); 
+    return $item;
 }
 
 #########################################################
@@ -996,8 +1096,8 @@ sub CreateInterface {
     my $output_selector = $/.'<select name="output">'.$/;
     foreach ('HTML','Excel','CSV') {
         $output_selector .= '    <option value="'.lc($_).'"';
-        if ($ENV{'form.output'} eq lc($_)) {
-            $output_selector .= ' selected ';
+        if ($env{'form.output'} eq lc($_)) {
+            $output_selector .= ' selected="selected"';
         }
         $output_selector .='>'.&mt($_).'</option>'.$/;
     } 
@@ -1005,74 +1105,91 @@ sub CreateInterface {
     ##
     ## Environment variable initialization
     my $Str = '';
-    $Str .= &Apache::lonhtmlcommon::breadcrumbs
-        (undef,'Student Submission Reports');
-    $Str .= '<p>';
-    $Str .= '<table cellspacing="5">'."\n";
-    $Str .= '<tr>';
+    $Str .= &Apache::lonhtmlcommon::breadcrumbs('Student Submission Reports');
+    $Str .= '<br />';
+    $Str .= &Apache::loncommon::start_data_table();
+    $Str .= &Apache::loncommon::start_data_table_header_row();
     $Str .= '<th>'.&mt('Sections').'</th>';
-    $Str .= '<th>'.&mt('Enrollment Status').'</th>';
-    $Str .= '<th>'.&mt('Output as [_1]',$output_selector).'</th>';
-    $Str .= '</tr>'."\n";
+    $Str .= '<th>'.&mt('Groups').'</th>';
+    $Str .= '<th>'.&mt('Student Data').&Apache::loncommon::help_open_topic("Chart_Student_Data").'</th>';
+    $Str .= '<th>'.&mt('Access Status').'</th>';
+    $Str .= '<th>'.&mt('Options').'</th>';
+    $Str .= '<th>'.&mt('Output Format').'</th>';
+    $Str .= &Apache::loncommon::end_data_table_header_row();
     #
-    $Str .= '<tr><td align="center">'."\n";
+    $Str .= &Apache::loncommon::start_data_table_row();
+    $Str .= '<td align="center">'."\n";
     $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
     $Str .= '</td>';
     #
+    $Str .= '<td align="center">'."\n";
+    $Str .= &Apache::lonstatistics::GroupSelect('Group','multiple',5);
+    $Str .= '</td>';
+    #
+    $Str .= '<td align="center">'."\n";
+    $Str .= &Apache::lonstatistics::StudentDataSelect('StudentData','multiple', 5,undef);
+    $Str .= '</td>';
+    #
     $Str .= '<td align="center">';
     $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
     $Str .= '</td>';
     #
     # Render problem checkbox
     my $prob_checkbox = '<input type="checkbox" name="renderprob" ';
-    if (exists($ENV{'form.renderprob'}) && $ENV{'form.renderprob'} eq 'true') {
-        $prob_checkbox .= 'checked ';
+    if (exists($env{'form.renderprob'}) && $env{'form.renderprob'} eq 'true') {
+        $prob_checkbox .= 'checked="checked" ';
     }
     $prob_checkbox .= 'value="true" />';
     #
     # Compute correct answers checkbox
     my $ans_checkbox = '<input type="checkbox" name="correctans" ';
-    if (exists($ENV{'form.correctans'}) && $ENV{'form.correctans'} eq 'true') {
-        $ans_checkbox .= 'checked ';
+    if (exists($env{'form.correctans'}) && $env{'form.correctans'} eq 'true') {
+        $ans_checkbox .= 'checked="checked" ';
     }
     $ans_checkbox .= 'value="true" />';
     #
     # Show all submissions checkbox
     my $all_sub_checkbox = '<input type="checkbox" name="all_sub" ';
-    if (exists($ENV{'form.all_sub'}) && 
-        $ENV{'form.all_sub'} eq 'true') {
-        $all_sub_checkbox .= 'checked ';
+    if (exists($env{'form.all_sub'}) && 
+        $env{'form.all_sub'} eq 'true') {
+        $all_sub_checkbox .= 'checked="checked" ';
     }
     $all_sub_checkbox.= 'value="true" />';
     #
     # problem status checkbox
     my $prob_status_checkbox = '<input type="checkbox" name="prob_status" ';
-    if (exists($ENV{'form.prob_status'}) && 
-        $ENV{'form.prob_status'} eq 'true') {
-        $prob_status_checkbox .= 'checked ';
+    if (exists($env{'form.prob_status'}) && 
+        $env{'form.prob_status'} eq 'true') {
+        $prob_status_checkbox .= 'checked="checked" ';
     }
     $prob_status_checkbox .= 'value="true" />';
     #
-    $Str .= '<td align="right" halign="top">'.
-        '<label><b>'.
-        &mt('Show problem [_1]',$prob_checkbox).'</b></label><br />'.
-        '<label><b>'.
-        &mt('Show correct answers [_1]',$ans_checkbox).'</b></label><br />'.
-        '<label><b>'.
-        &mt('Show all submissions [_1]',$all_sub_checkbox).
-        '</b></label><br />'.
-        '<label><b>'.
-        &mt('Show problem grading [_1]',$prob_status_checkbox).
-        '</b></label><br />'.
-        '</td>';
-    #
-    $Str .= '</tr>'."\n";
-    $Str .= '</table>'."\n";
-    #
-    $Str .= '<nobr>'.&mt('Status: [_1]',
-                         '<input type="text" '.
-                         'name="stats_status" size="60" value="" />').
-            '</nobr>'.'</p>';    
+    $Str .=
+        '<td valign="top">'
+       .'<label>'
+       .$prob_checkbox.&mt('Show problem')
+       .'</label><br />'
+       .'<label>'
+       .' '.$ans_checkbox.&mt('Show correct answers')
+       .'</label><br />'
+       .'<label>'
+       .$all_sub_checkbox.&mt('Show all submissions')
+       .'</label><br />'
+       .'<label>'
+       .$prob_status_checkbox.&mt('Show problem grading')
+       .'</label>'
+       .'</td>';
+    #
+    $Str .= '<td align="center" valign="top">'.$output_selector.'</td>';
+    #
+    $Str .= &Apache::loncommon::end_data_table_row();
+    $Str .= &Apache::loncommon::end_data_table();
+    #
+    $Str .= '<p><span class="LC_nobreak">'
+           .&mt('Status: [_1]',
+                    '<input type="text" name="stats_status"'
+                   .' size="60" value="" readonly="readonly" />')
+           .'</span></p>';
     ##
     return $Str;
 }