--- loncom/interface/statistics/lonstudentsubmissions.pm	2005/04/12 21:49:49	1.41
+++ loncom/interface/statistics/lonstudentsubmissions.pm	2010/08/04 01:56:07	1.60
@@ -1,6 +1,6 @@
 # The LearningOnline Network with CAPA
 #
-# $Id: lonstudentsubmissions.pm,v 1.41 2005/04/12 21:49:49 matthew Exp $
+# $Id: lonstudentsubmissions.pm,v 1.60 2010/08/04 01:56:07 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -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' },
@@ -63,14 +66,20 @@ 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();
     #
+    my %anoncounter =
+         &Apache::lonnet::dump('nohist_anonsurveys',
+                        $env{'course.'.$env{'request.course.id'}.'.domain'},
+                        $env{'course.'.$env{'request.course.id'}.'.num'});
     if (exists($env{'form.problemchoice'}) && 
         ! exists($env{'form.SelectAnother'})) {
         foreach my $button (@SubmitButtons) {
@@ -92,24 +101,82 @@ sub BuildStudentSubmissionsPage {
         # Determine which problems we are to analyze
         my @Symbs = 
             &Apache::lonstathelpers::get_selected_symbs('problemchoice');
-        foreach my $selected (@Symbs) {
-            $r->print('<input type="hidden" name="problemchoice" value="'.
-                      $selected.'" />'.$/);
+
+        # If there are multi-part problems with anonymous survey and named
+        # parts check if named was picked for display.
+        #
+        my %mixed_named; 
+        foreach my $envkey (%env) {
+            if ($envkey =~ /^form\.mixed_(\d+:\d+)$/) {
+                my $item = $1; 
+                if ($env{$envkey} =~ /^symb_(.+)$/) {
+                    my $symb = &unescape($1);
+                    if (ref($mixed_named{$symb}) eq 'ARRAY') {
+                        push(@{$mixed_named{$symb}},$item);
+                    } else {
+                        @{$mixed_named{$symb}} = ($item);
+                    }
+                }
+            }
         }
         #
         # Get resource objects
         my $navmap = Apache::lonnavmaps::navmap->new();
         if (!defined($navmap)) {
-            $r->print('<h1>'.&mt("Internal error").'</h1>');
+            foreach my $selected (@Symbs) {
+                $r->print('<input type="hidden" name="problemchoice" value="'.
+                          &escape($selected).'" />'.$/);
+                if (ref($mixed_named{$selected}) eq 'ARRAY') {
+                    foreach my $item (@{$mixed_named{$selected}}) {
+                        $r->print('<input type="hidden" name="mixed_'.$item.'" value="'.&escape($selected).'" />'.$/);
+                    }
+                }
+            }
+            $r->print('<div class="LC_error">'.&mt("Internal error").'</div>');
             return;
         }
         my %already_seen;
-        my @Problems;
+        my (@Problems,@anonProbs,@namedProbs,$show_named);
         foreach my $symb (@Symbs) {
             my $resource = $navmap->getBySymb($symb);
-            push(@Problems,$resource);
+            my ($hasanon,$hasnamed);
+            if (ref($resource)) {
+                foreach my $partid (@{$resource->parts}) {
+                    if (($anoncounter{$symb."\0".$partid}) || ($resource->is_anonsurvey($partid))) {
+                        unless (exists($mixed_named{$symb})) {
+                            $hasanon = 1;
+                        }
+                    } else {
+                        $hasnamed = 1;
+                    }
+                }
+                if ($hasanon) {
+                    push(@anonProbs,$resource);
+                } elsif ($hasnamed) {
+                    push(@namedProbs,$resource);
+                }
+            }
+        }
+        if (@namedProbs > 0) {
+            @Problems = @namedProbs;
+            $show_named = 1;
+        } elsif (@anonProbs > 0) {
+            @Problems = @anonProbs;
+        } 
+        foreach my $selected (@Symbs) {
+            $r->print('<input type="hidden" name="problemchoice" value="'.
+                      &escape($selected).'" />'.$/);
+            if (ref($mixed_named{$selected}) eq 'ARRAY') {
+                foreach my $item (@{$mixed_named{$selected}}) {
+                    $r->print('<input type="hidden" name="mixed_'.$item.'" value="'.&escape($selected).'" />'.$/);
+                }
+            }
         }
-        # 
+        # If these are to be anonymized, do a random shuffle of @Students. 
+        unless ($show_named) {
+            &array_shuffle(\@Students);
+        }
+        #
         $r->print('<h4>'.
                   &Apache::lonstatistics::section_and_enrollment_description().
                   '</h4>');
@@ -126,11 +193,11 @@ sub BuildStudentSubmissionsPage {
                 }
             }
             if ($env{'form.output'} eq 'excel') {
-                &prepare_excel_output($r,\@Problems,\@Students);
+                &prepare_excel_output($r,\@Problems,\@Students,\%anoncounter,$show_named);
             } elsif ($env{'form.output'} eq 'csv') {
-                &prepare_csv_output($r,\@Problems,\@Students);
+                &prepare_csv_output($r,\@Problems,\@Students,\%anoncounter,$show_named);
             } else {
-                &prepare_html_output($r,\@Problems,\@Students);
+                &prepare_html_output($r,\@Problems,\@Students,\%anoncounter,$show_named);
             }
         }
         $r->print('<hr />');
@@ -142,26 +209,43 @@ 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'));
+                  (undef,'problemchoice','Statistics',\%anoncounter));
+    }
+}
+
+sub array_shuffle {
+    my $array = shift;
+    return unless (ref($array) eq 'ARRAY');
+    my $i = scalar(@$array);
+    my $j;
+    foreach my $item (@$array) {
+        --$i;
+        $j = int(rand($i+1));
+        next if($i == $j);
+        @$array [$i,$j] = @$array[$j,$i];
     }
+    return @$array;
 }
 
 ##
 ## get_extra_response_headers
 ##
 sub get_extra_response_headers {
+    my ($show_named) = @_;
     my @extra_resp_headers;
     if ($env{'form.correctans'} eq 'true') {
         push(@extra_resp_headers,'Correct');
-    } 
-    if ($env{'form.prob_status'} eq 'true') {
-        push(@extra_resp_headers,'Award Detail'); 
-        push(@extra_resp_headers,'Time');
-        push(@extra_resp_headers,'Attempt');
-        push(@extra_resp_headers,'Awarded');
+    }
+    if ($show_named) { 
+        if ($env{'form.prob_status'} eq 'true') {
+            push(@extra_resp_headers,'Award Detail'); 
+            push(@extra_resp_headers,'Time');
+            push(@extra_resp_headers,'Attempt');
+            push(@extra_resp_headers,'Awarded');
+        }
     }
     return @extra_resp_headers;
 }
@@ -190,6 +274,8 @@ sub get_headers {
             shift(@basic_headers);  # Get rid of 'Correct'
         }
         @headers = (@foils,@basic_headers);
+    } elsif (lc($resptype) eq 'task') {
+        @headers = ('Grader','Status',@basic_headers,'Submission');
     } else {
         @headers = ('Submission',@basic_headers);
     }
@@ -204,7 +290,7 @@ sub get_headers {
 #########################################################
 #########################################################
 sub prepare_html_output {
-    my ($r,$problems,$students) = @_;
+    my ($r,$problems,$students,$anoncounter,$show_named) = @_;
     my $c = $r->connection();
     #
     # Set a flag for the case when there is just one problem
@@ -215,10 +301,18 @@ sub prepare_html_output {
     }
     #
     # Compute the number of columns per response
-    my @extra_resp_headers = &get_extra_response_headers();
+    my @extra_resp_headers = &get_extra_response_headers($show_named);
     #
     # Create the table header
-    my @student_columns = ('username','domain','id','section');
+    my @student_columns;
+    if ($show_named) {
+        @student_columns = @Apache::lonstatistics::SelectedStudentData;
+        if (grep(/^all$/,@student_columns)) {
+            @student_columns = qw(fullname username domain id section status groups comments);
+        }
+    } else {
+        @student_columns = ('username');
+    }
     #
     my %headers;
     my $student_column_count = scalar(@student_columns);
@@ -235,13 +329,21 @@ sub prepare_html_output {
     foreach my $prob (@$problems) {
         my %analysis = &Apache::lonstathelpers::get_problem_data($prob->src);
         $problem_analysis{$prob->src}=\%analysis;
+        my $symb = $prob->symb();
         #
         my $prob_span = 0;
         my $single_part = 0;
         if (scalar(@{$prob->parts}) == 1) {
             $single_part = 1;
         }
+        my $shown_parts = 0;
         foreach my $partid (@{$prob->parts}) {
+            if (($prob->is_anonsurvey($partid)) || ($anoncounter->{$symb."\0".$partid})) {
+                next if ($show_named);
+            } else {
+                next unless ($show_named);
+            }
+            $shown_parts ++;
             my $part_span = 0;
             my $responses = [$prob->responseIds($partid)];
             my $resptypes = [$prob->responseType($partid)];
@@ -258,9 +360,10 @@ 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) {
@@ -277,10 +380,11 @@ sub prepare_html_output {
                 $headers{'part'} .= qq{<th colspan="$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 += $part_span;
         }
+        next if (!$shown_parts);
         my $title = $prob->compTitle;
         if ($prob_span > 0) {
             $headers{'problem'}.= qq{<th colspan="$prob_span">$title</th>};
@@ -317,9 +421,21 @@ sub prepare_html_output {
             $count = 0;
         }
         last if ($c->aborted());
-        foreach my $field (@student_columns) {
-            $student_row_data .= 
-                '<td valign="top">'.$student->{$field}.'</td>';
+        if ($show_named) {
+            foreach my $field (@student_columns) {
+                $student_row_data .= '<td valign="top">';
+                # handle comments like in lonstudentassessment.pm
+                if($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>';
+            }
+        } else {
+            $student_row_data = '<td valign="top" colspan="'.$student_column_count.'">'.&mt('Anonymized').'</td>';
         }
         #
         # Figure out what it is we need to output for this student
@@ -327,8 +443,14 @@ sub prepare_html_output {
         my %prob_data;
         my $maxrow;
         foreach my $prob (@$problems) {
-            $prob_data{$prob->symb}={};
+            my $symb = $prob->symb;
+            $prob_data{$symb}={};
             foreach my $partid (@{$prob->parts}) {
+                if (($prob->is_anonsurvey($partid)) || ($anoncounter->{$symb."\0".$partid})) {
+                    next if ($show_named);
+                } else {
+                    next unless ($show_named);
+                }
                 my @responses = $prob->responseIds($partid);
                 my @response_type = $prob->responseType($partid);
                 for (my $i=0;$i<=$#responses;$i++) {
@@ -369,6 +491,14 @@ 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,
@@ -428,6 +558,7 @@ sub prepare_html_output {
             undef(@essays);
         }
     } # end of student loop
+    $r->print('</table>'.$/);
     return;
 }
 
@@ -442,14 +573,27 @@ 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;
 }
 
@@ -473,7 +617,7 @@ 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
@@ -482,11 +626,11 @@ 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 />';
     }
@@ -512,20 +656,34 @@ 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 $submission = &HTML::Entities::decode(&Apache::lonnet::unescape($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'} = $submission;
     #
@@ -533,14 +691,14 @@ sub html_non_essay_results {
     if ($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'});
         }
@@ -582,19 +740,26 @@ sub html_non_essay_results {
 #########################################################
 #########################################################
 sub prepare_excel_output {
-    my ($r,$Problems,$Students) = @_;
+    my ($r,$Problems,$Students,$anoncounter,$show_named) = @_;
     my $c = $r->connection();
     #
     #
     # Determine the number of columns in the spreadsheet
     my $columncount = 3; # username, domain, id
-    my @extra_resp_headers = &get_extra_response_headers();
+    my @extra_resp_headers = &get_extra_response_headers($show_named);
     my $lastprob;
     my %problem_analysis;
     foreach my $prob (@$Problems) {
+        my $symb = $prob->symb();
         my %analysis = &Apache::lonstathelpers::get_problem_data($prob->src);
         $problem_analysis{$prob->src}=\%analysis;
         foreach my $partid (@{$prob->parts}) {
+            if (($prob->is_anonsurvey($partid)) || ($anoncounter->{$symb."\0".$partid})) {
+                next if ($show_named);
+            } else {
+                next unless ($show_named);
+            }
+
             my $responses = [$prob->responseIds($partid)];
             my $resptypes = [$prob->responseType($partid)];
             for (my $i=0;$i<scalar(@$responses);$i++) {
@@ -612,8 +777,10 @@ sub prepare_excel_output {
     if ($columncount > 255) {
         $r->print('<h1>'.&mt('Unable to complete request').'</h1>'.$/.
                   '<p>'.&mt('LON-CAPA is unable to produce your Excel spreadsheet because your selections will result in more than 255 columns.  Excel allows only 255 columns in a spreadsheet.').'</p>'.$/.
-                  '<p>'.&mt('Consider selecting fewer problems to generate reports on, or reducing the number of items per problem.  Or use HTML or CSV output.').'</p>'.$/.
-                  '<p>'.&mt('The last problem that will fit in the current spreadsheet is [_1].',$lastprob->compTitle).'</p>');
+                  '<p>'.&mt('Consider selecting fewer problems to generate reports on, or reducing the number of items per problem.  Or use HTML or CSV output.').'</p>'.$/);
+        if (ref($lastprob)) {
+            $r->print('<p>'.&mt('The last problem that will fit in the current spreadsheet is [_1].',$lastprob->compTitle).'</p>');
+        }
         $r->rflush();
         return;
     }
@@ -652,7 +819,12 @@ sub prepare_excel_output {
     $worksheet->write($partid_row,0,'Part ID',$format->{'bold'});
     $worksheet->write($respid_row,0,'Response ID',$format->{'bold'});
     # Student headers
-    my @StudentColumns = ('username','domain','id','section');
+    my @StudentColumns;
+    if ($show_named) {
+        @StudentColumns = qw(username domain id section);
+    } else {
+         @StudentColumns = qw(username);
+    }
     foreach (@StudentColumns) {
         $worksheet->write($header_row,$cols_output++,ucfirst($_),
                           $format->{'bold'});
@@ -661,9 +833,15 @@ sub prepare_excel_output {
     my %start_col;
     foreach my $prob (@$Problems) {
         my $title = $prob->compTitle;
+        my $symb = $prob->symb();
         $worksheet->write($title_row,$cols_output,
                           $title,$format->{'h3'});
         foreach my $partid (@{$prob->parts}) {
+            if (($prob->is_anonsurvey($partid)) || ($anoncounter->{$symb."\0".$partid})) {
+                next if ($show_named);
+            } else {
+                next unless ($show_named);
+            }
             $worksheet->write($partid_row,$cols_output,
                               $prob->part_display($partid));
             my $responses = [$prob->responseIds($partid)];
@@ -700,12 +878,23 @@ sub prepare_excel_output {
         $cols_output = 0;
         my $student_row = $max_row;
         foreach my $field (@StudentColumns) {
-            $worksheet->write($student_row,$cols_output++,
-                              $student->{$field});
+            if ($show_named) {
+                $worksheet->write($student_row,$cols_output++,
+                                  $student->{$field});
+            } else {
+                $worksheet->write($student_row,$cols_output++,
+                                      &mt('Anonymized'));
+            }
         }
         my $last_student_col = $cols_output-1;
         foreach my $prob (@$Problems) {
+            my $symb = $prob->symb();
             foreach my $partid (@{$prob->parts}) {
+                if (($prob->is_anonsurvey($partid)) || ($anoncounter->{$symb."\0".$partid})) {
+                    next if ($show_named);
+                } else {
+                    next unless ($show_named);
+                }
                 my @Response = $prob->responseIds($partid);
                 my @ResponseType = $prob->responseType($partid);
                 for (my $i=0;$i<=$#Response;$i++) {
@@ -756,8 +945,13 @@ sub prepare_excel_output {
         for (my $row = $student_row+1;$row<$max_row;$row++) {
             my $cols = 0;
             foreach my $field (@StudentColumns) {
-                $worksheet->write($row,$cols++,
-                                  $student->{$field});
+                if ($show_named) {
+                    $worksheet->write($row,$cols++,
+                                      $student->{$field});
+                } else {
+                    $worksheet->write($row,$cols++,
+                                      &mt('Anonymized'));
+                }
             }
         }
         &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
@@ -791,8 +985,10 @@ sub compile_response_data {
     #
     my $submission = 
         &HTML::Entities::decode
-        (&Apache::lonnet::unescape($response->{'Submission'}));
-    return () if (! defined($submission) || $submission eq '');
+        (&unescape($response->{'Submission'}));
+    if (!$prob->is_task()) {
+	return () if (! defined($submission) || $submission eq '');
+    }
     $submission =~ s/\\\"/\"/g;
     $submission =~ s/\\\'/\'/g;
     if ($resptype eq 'radiobutton') {
@@ -804,14 +1000,14 @@ sub compile_response_data {
     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('&',$response->{'Correct'});
         }
@@ -865,7 +1061,7 @@ sub excel_format_item {
 #########################################################
 #########################################################
 sub prepare_csv_output {
-    my ($r,$problems,$students) = @_;
+    my ($r,$problems,$students,$anoncounter,$show_named) = @_;
     my $c = $r->connection();
     #
     $r->print('<h2>'.
@@ -886,17 +1082,27 @@ sub prepare_csv_output {
             time.'_'.rand(1000000000).'.csv';
     unless ($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>'
+        );
         $outputfile = undef;
     }
     #
     # Compute the number of columns per response
-    my @extra_resp_headers = &get_extra_response_headers();
+    my @extra_resp_headers = &get_extra_response_headers($show_named);
     #
     # Create the table header
     my @student_columns = ('username','domain','id','section');
+    if ($show_named) {
+        @student_columns = qw(username domain id section);
+    } else {
+        @student_columns = qw(username);
+    }
+    my $student_column_count = scalar(@student_columns);
     #
     my %headers;
     push(@{$headers{'student'}},@student_columns);
@@ -910,10 +1116,16 @@ sub prepare_csv_output {
     my %start_col;
     my $max_column = scalar(@student_columns);
     foreach my $prob (@$problems) {
+        my $symb = $prob->symb();
         my %analysis = &Apache::lonstathelpers::get_problem_data($prob->src);
         $problem_analysis{$prob->src}=\%analysis;
         $headers{'problem'}->[$max_column] = $prob->compTitle;
         foreach my $partid (@{$prob->parts}) {
+            if (($prob->is_anonsurvey($partid)) || ($anoncounter->{$symb."\0".$partid})) {
+                next if ($show_named);
+            } else {
+                next unless ($show_named);
+            }
             $headers{'part'}->[$max_column] = $prob->part_display($partid);
             my $responses = [$prob->responseIds($partid)];
             my $resptypes = [$prob->responseType($partid)];
@@ -947,7 +1159,13 @@ sub prepare_csv_output {
         last if ($c->aborted());
         my @rows;
         foreach my $prob (@$problems) {
+            my $symb = $prob->symb;
             foreach my $partid (@{$prob->parts}) {
+                if (($prob->is_anonsurvey($partid)) || ($anoncounter->{$symb."\0".$partid})) {
+                    next if ($show_named); 
+                } else {
+                    next unless ($show_named);
+                }
                 my @responses = $prob->responseIds($partid);
                 my @response_type = $prob->responseType($partid);
                 for (my $i=0;$i<=$#responses;$i++) {
@@ -985,10 +1203,16 @@ sub prepare_csv_output {
             }
         }
         foreach my $row (@rows) {
-            print $outputfile '"'.join('","',
-                                       map { $student->{$_}; }
-                                       @student_columns).'"';
-            for (my $i=scalar(@student_columns);$i<$max_column;$i++) {
+            my $student_row_data = '';
+            if ($show_named) {
+                $student_row_data = '"'.join('","',
+                                        map { $student->{$_}; }
+                                        @student_columns).'"';
+            } else {
+                $student_row_data = '"'.&mt('Anonymized').'"';
+            }
+            print $outputfile $student_row_data;
+            for (my $i=$student_column_count;$i<$max_column;$i++) {
                 my $value = &Apache::loncommon::csv_translate($row->[$i]);
                 $value ||='';
                 print $outputfile ',"'.$value.'"';
@@ -1004,9 +1228,9 @@ 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;
 }
@@ -1034,7 +1258,7 @@ sub CreateInterface {
     foreach ('HTML','Excel','CSV') {
         $output_selector .= '    <option value="'.lc($_).'"';
         if ($env{'form.output'} eq lc($_)) {
-            $output_selector .= ' selected ';
+            $output_selector .= ' selected="selected"';
         }
         $output_selector .='>'.&mt($_).'</option>'.$/;
     } 
@@ -1042,20 +1266,31 @@ 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>';
@@ -1063,14 +1298,14 @@ sub CreateInterface {
     # Render problem checkbox
     my $prob_checkbox = '<input type="checkbox" name="renderprob" ';
     if (exists($env{'form.renderprob'}) && $env{'form.renderprob'} eq 'true') {
-        $prob_checkbox .= 'checked ';
+        $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 ';
+        $ans_checkbox .= 'checked="checked" ';
     }
     $ans_checkbox .= 'value="true" />';
     #
@@ -1078,7 +1313,7 @@ sub CreateInterface {
     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 ';
+        $all_sub_checkbox .= 'checked="checked" ';
     }
     $all_sub_checkbox.= 'value="true" />';
     #
@@ -1086,30 +1321,36 @@ sub CreateInterface {
     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 ';
+        $prob_status_checkbox .= 'checked="checked" ';
     }
     $prob_status_checkbox .= 'value="true" />';
     #
-    $Str .= '<td align="right" valign="top">'.
-        '<label><b>'.
-        &mt('Show problem [_1]',$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;
 }