--- loncom/interface/statistics/lonstudentsubmissions.pm	2004/03/12 21:13:11	1.8
+++ loncom/interface/statistics/lonstudentsubmissions.pm	2004/09/08 14:58:33	1.17
@@ -1,6 +1,6 @@
 # The LearningOnline Network with CAPA
 #
-# $Id: lonstudentsubmissions.pm,v 1.8 2004/03/12 21:13:11 matthew Exp $
+# $Id: lonstudentsubmissions.pm,v 1.17 2004/09/08 14:58:33 matthew Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -43,14 +43,10 @@ my @SubmitButtons = ({ name => 'PrevProb
                      { name => 'NextProblem',
                        text => 'Next Problem' },
                      { name => 'break'},
-                     { name => 'ClearCache',
-                       text => 'Clear Caches' },
-                     { name => 'updatecaches',
-                       text => 'Update Student Data' },
                      { name => 'SelectAnother',
                        text => 'Choose a different Problem' },
                      { name => 'Generate',
-                       text => 'Generate Spreadsheet'},
+                       text => 'Generate Report'},
                      );
 
 sub BuildStudentSubmissionsPage {
@@ -75,18 +71,8 @@ sub BuildStudentSubmissionsPage {
         $r->print('<h2>There are no students in the sections selected</h2>');
     }
     #
-    &Apache::loncoursedata::clear_internal_caches();
-    if (exists($ENV{'form.ClearCache'}) || 
-        exists($ENV{'form.updatecaches'}) ||
-        (exists($ENV{'form.firstanalysis'}) &&
-         $ENV{'form.firstanalysis'} ne 'no')) {
-        &Apache::lonstatistics::Gather_Full_Student_Data($r);
-    }
-    if (! exists($ENV{'form.firstanalysis'})) {
-        $r->print('<input type="hidden" name="firstanalysis" value="yes" />');
-    } else {
-        $r->print('<input type="hidden" name="firstanalysis" value="no" />');
-    }
+    my @CacheButtonHTML = 
+        &Apache::lonstathelpers::manage_caches($r,'Statistics','stats_status');
     $r->rflush();
     #
     if (exists($ENV{'form.problemchoice'}) && 
@@ -100,6 +86,9 @@ sub BuildStudentSubmissionsPage {
                 $r->print('&nbsp;'x5);
             }
         }
+        foreach my $html (@CacheButtonHTML) {
+            $r->print($html.('&nbsp;'x5));
+        }
         #
         $r->print('<hr />');
         $r->rflush();
@@ -133,26 +122,478 @@ sub BuildStudentSubmissionsPage {
             my $resource = $current_problem->{'resource'};
             $r->print('<h1>'.$resource->{'title'}.'</h1>');
             $r->print('<h3>'.$resource->{'src'}.'</h3>');
-            $r->print(&Apache::lonstathelpers::render_resource($resource));
+            if ($ENV{'form.renderprob'} eq 'true') {
+                $r->print(&Apache::lonstathelpers::render_resource($resource));
+            }
             $r->rflush();
             my %Data = &Apache::lonstathelpers::get_problem_data
                 ($resource->{'src'});
             my $ProblemData = $Data{$current_problem->{'part'}.
                                     '.'.
                                     $current_problem->{'respid'}};
-            &prepare_excel_output($r,$current_problem,
-                                  $ProblemData,\@Students);
+            if ($ENV{'form.output'} eq 'excel') {
+                &prepare_excel_output($r,$current_problem,
+                                      $ProblemData,\@Students);
+            } elsif ($ENV{'form.output'} eq 'csv') {
+                &prepare_csv_output($r,$current_problem,
+                                      $ProblemData,\@Students);
+            } else {
+                &prepare_html_output($r,$current_problem,
+                                     $ProblemData,\@Students);
+            }
         }
         $r->print('<hr />');
     } else {
         $r->print('<input type="submit" name="Generate" value="'.
-                  &mt('Generate Spreadsheet').'" />');
+                  &mt('Prepare Report').'" />');
         $r->print('&nbsp;'x5);
         $r->print('<h3>'.&mt('Please select a problem to analyze').'</h3>');
         $r->print(&Apache::lonstathelpers::ProblemSelector('.'));
     }
 }
 
+#########################################################
+#########################################################
+
+my @DefaultColumns = 
+    (
+     {name=>'username',
+      display=>'Student'},
+     {name=>'domain',
+      display=>'Domain'},
+     {name => 'id',
+      display => 'Id'},
+     {name => 'time',
+      display =>'Time'},
+     {name => 'attempt',
+      display =>'Attempt'},
+     {name => 'awarddetail',
+      display =>'Awarddetail'},
+     {name => 'awarded',
+      display =>'Award'},
+     # FIXME: Probably need to add score
+    );
+
+sub get_response_type {
+    my ($resource,$partid,$respid) = @_;
+    my $response_type = '';
+    for (my $i=0;
+         $i<scalar(@{$resource->{'partdata'}->{$partid}->{'ResponseIds'}});
+         $i++) {
+        if($resource->{'partdata'}->{$partid}->{'ResponseIds'}->[$i] eq $respid){
+            $response_type = 
+                $resource->{'partdata'}->{$partid}->{'ResponseTypes'}->[$i];
+            last;
+        }
+    }
+    return $response_type;
+}
+
+
+#########################################################
+#########################################################
+##
+##    prepare_html_output
+##
+#########################################################
+#########################################################
+sub prepare_html_output {
+    my ($r,$problem,$ProblemData,$Students) = @_;
+    my $c = $r->connection();
+    my ($resource,$respid,$partid) = ($problem->{'resource'},
+                                      $problem->{'respid'},
+                                      $problem->{'part'});
+    #
+    if ($ENV{'form.correctans'} eq 'true') {
+        $r->print('<h2>'.&mt('Generating Correct Answers').'</h2>');
+        &Apache::lonstathelpers::GetStudentAnswers($r,$problem,$Students,
+                                                   'Statistics',
+                                                   'stats_status');
+    }
+    #
+    $r->print('<h2>'.&mt('Student Responses').'</h2>');
+    #
+    $r->rflush();
+    my $response_type = &get_response_type($resource,$partid,$respid);
+    if (! defined($response_type)) {
+        $r->print('<h2>'.&mt('Unable to determine response type').'</h2>');
+        return;
+    }
+    my $count = 0;
+    my @Columns;
+    if (exists($ENV{'form.concise'}) && $ENV{'form.concise'} eq 'true') {
+        foreach (@DefaultColumns) {
+            if ($_->{'name'} =~ /^(username|domain|id)$/){
+                push(@Columns,$_);
+            }
+        }
+    } else {
+        @Columns = @DefaultColumns;
+    }
+    my $header = '<table>'.$/.&html_headers(\@Columns);
+    if ($response_type eq 'essay') {
+        $header .= &html_essay_headers();
+    } elsif ($response_type eq 'option') {
+        $header .= &html_option_headers();
+    } else {
+        $header .= &html_generic_headers();
+    }
+    $header = '<tr>'.$header.'</tr>';
+    #
+    $r->print($/.$header.$/);
+    foreach my $student (@$Students) {
+        if ($count >= 50) {
+            $r->print('</table>'.$/.$header.$/);
+            $count = 0;
+        }
+        last if ($c->aborted());
+        my $results = &Apache::loncoursedata::get_response_data_by_student
+            ($student,$resource->{'symb'},$respid);
+        next if (! defined($results) || ref($results) ne 'ARRAY');
+        for (my $i=0;$i<scalar(@$results);$i++) {
+            my $response = $results->[$i];
+            if ($ENV{'form.last_sub_only'} eq 'true' && 
+                $i < (scalar(@$results)-1)) {
+                next;
+            }
+            my $data;
+            $data->{'username'} = $student->{'username'};
+            $data->{'domain'}   = $student->{'domain'};
+            $data->{'id'} = $student->{'id'};
+            $data->{'fullname'} = $student->{'fullanem'};
+            $data->{'status'} = $student->{'status'};
+            $data->{'time'} = &Apache::lonlocal::locallocaltime
+                ($response->[&Apache::loncoursedata::RDs_timestamp()]);
+            $data->{'attempt'} = 
+                $response->[&Apache::loncoursedata::RDs_tries()];
+            $data->{'awarded'} = 
+                $response->[&Apache::loncoursedata::RDs_awarded()];
+            $data->{'awarddetail'} = 
+                $response->[&Apache::loncoursedata::RDs_awarddetail()];
+            my $rowextra = 'bgcolor="#CCCCCC"';
+            if ($count % 2 == 1) {
+                $rowextra = 'bgcolor="#EEEEEE"';
+            }
+            my $row = '<tr '.$rowextra.'>';
+            foreach my $col (@Columns) {
+                $row .= '<td valign="top">'.
+                    $data->{$col->{'name'}}.'</td>';
+            }
+            if ($response_type eq 'essay') {
+                $row .= &html_essay_results
+                    ($response->[&Apache::loncoursedata::RDs_submission()],
+                     $student->{'answer'},
+                     scalar(@Columns),$rowextra);
+            } elsif ($response_type eq 'option') {
+                $row .= &html_option_results
+                    ($response->[&Apache::loncoursedata::RDs_submission()],
+                     $student->{'answer'},
+                     scalar(@Columns),$rowextra);
+            } else {
+                $row .= &html_generic_results
+                    ($response->[&Apache::loncoursedata::RDs_submission()],
+                     $student->{'answer'},
+                     scalar(@Columns),$rowextra);
+            }
+            $row .= '</tr>';
+            $r->print($row.$/);
+            $count++;
+        }
+    }
+    $r->print('</table>'.$/);
+    return;
+}
+
+#####################################################
+##
+##     HTML helper routines
+##
+#####################################################
+sub html_headers {
+    my ($Columns) = @_;
+    my $Str;
+    foreach my $column (@$Columns) {
+        $Str .= '<th align="left">'.$column->{'display'}.'</th>';
+    }
+    return $Str;
+}
+
+sub html_essay {
+    my ($submission,$correct,$tablewidth,$rowextra)=@_;
+    #
+    $submission =~ s|\\r\\n|$/|g;
+    $submission = &HTML::Entities::encode($submission,'<>&"');
+    $submission =~ s|$/\s*$/|$/</p><p>$/|g;
+    $submission =~ s|\\||g;
+    $submission = '<p>'.$submission.'</p>';
+    #
+    my $Str  = '</tr><tr '.$rowextra.'>'.
+        '<td colspan="'.$tablewidth.'">'.$submission.'</td>';
+    if ($ENV{'form.correctans'} eq 'true') {
+        $Str .= '</tr>';
+        if (defined($correct) && $correct !~ /^\s*$/) {
+            $Str .= '<tr '.$rowextra.'><td colspan="'.$tablewidth.'">'.
+                '<b>'.&mt('Correct Answer:').'</b>'.$correct.'</td>';
+        }
+    }
+    $Str .= '</tr>';
+    #
+    return $Str;
+}
+
+sub html_essay_headers {
+    return '';
+}
+
+sub html_generic_headers {
+    my $header ='<th>'.&mt('Submission').'</th>';
+    if ($ENV{'form.correctans'} eq 'true') {
+        $header .= '<th>'.&mt('Correct').'</th>';
+    }
+    return $header;
+}
+
+sub html_option_headers {
+    return &html_generic_headers();
+}
+
+sub html_radiobutton_results {
+    my ($submission,$correct,$tablewidth,$rowclass)=@_;
+    $submission =~ s/=([^=])$//;
+    return &html_generic_results($submission,$correct,$tablewidth,$rowclass);
+}
+
+sub html_generic_results {
+    my ($submission,$correct,$tablewidth,$rowclass)=@_;
+    my $Str .= '<td>'.$submission.'</td>';
+    if ($ENV{'form.correctans'} eq 'true') {
+        $Str .= '<td>'.$correct.'</td>';
+    }
+    $Str .= '</tr>';
+    return $Str;
+}
+
+sub html_option_results {
+    my ($submission,$correct,$tablewidth,$rowclass)=@_;
+    $submission = 
+        '<ul class="sub_studentans">'.
+        '<li>'.join('</li><li>',
+                    map { 
+                        &Apache::lonnet::unescape($_) ;
+                    } sort split('&',$submission)
+                    ).
+                    '</li><ul>';
+    if (defined($correct) && $correct !~ /^\s*$/) {
+        $correct = '<ul class="sub_correctans">'.
+            '<li>'.join('</li><li>',
+                        map { 
+                            &Apache::lonnet::unescape($_) ;
+                        } sort split('&',$correct)
+                        ).
+                        '</li></ul>';
+    }
+    #
+    return &html_generic_results($submission,$correct,$tablewidth,$rowclass);
+}
+
+#########################################################
+#########################################################
+##
+##      CSV output of student answers
+##
+#########################################################
+#########################################################
+sub prepare_csv_output {
+    my ($r,$problem,$ProblemData,$Students) = @_;
+    #
+    my $c = $r->connection();
+    my ($resource,$respid,$partid) = ($problem->{'resource'},
+                                      $problem->{'respid'},
+                                      $problem->{'part'});
+    #
+    if ($ENV{'form.correctans'} eq 'true') {
+        $r->print('<h2>'.&mt('Generating Correct Answers').'</h2>');
+        &Apache::lonstathelpers::GetStudentAnswers($r,$problem,$Students,
+                                                   'Statistics',
+                                                   'stats_status');
+    }
+    #
+    $r->print('<h2>'.
+              &mt('Generating CSV report of student responses').'</h2>');
+    #
+    # Progress window
+    my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
+        ($r,'CSV File Compilation Status',
+         'CSV File Compilation Progress', 
+         scalar(@$Students),'inline',undef,'Statistics','stats_status');
+
+    $r->rflush();
+    #
+    # Open a file
+    my $outputfile;
+    my $filename = '/prtspool/'.
+        $ENV{'user.name'}.'_'.$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.");
+        $outputfile = undef;
+    }
+    #
+    #
+    my @Columns;
+    if (exists($ENV{'form.concise'}) && $ENV{'form.concise'} eq 'true') {
+        foreach (@DefaultColumns) {
+            if ($_->{'name'} =~ /^(username|domain|id)$/){
+                push(@Columns,$_);
+            }
+        }
+    } else {
+        @Columns = @DefaultColumns;
+    }
+    #
+    my $response_type = &get_response_type($resource,$partid,$respid);
+    if (! defined($response_type) || $response_type eq '') {
+        $r->print('<h2>'.&mt('Unable to determine response type').'</h2>');
+        return;
+    }
+    #
+    my $header = &csv_headers(\@Columns).','.&csv_generic_headers();
+    print $outputfile $header.$/;
+    #
+    foreach my $student (@$Students) {
+        last if ($c->aborted());
+        my $results = &Apache::loncoursedata::get_response_data_by_student
+            ($student,$resource->{'symb'},$respid);
+        next if (! defined($results) || ref($results) ne 'ARRAY');
+        for (my $i=0;$i<scalar(@$results);$i++) {
+            my $response = $results->[$i];
+            if ($ENV{'form.last_sub_only'} eq 'true' && 
+                $i < (scalar(@$results)-1)) {
+                next;
+            }
+            my $data;
+            $data->{'username'} = $student->{'username'};
+            $data->{'domain'}   = $student->{'domain'};
+            $data->{'id'} = $student->{'id'};
+            $data->{'fullname'} = $student->{'fullanem'};
+            $data->{'status'} = $student->{'status'};
+            $data->{'time'} = &Apache::lonlocal::locallocaltime
+                ($response->[&Apache::loncoursedata::RDs_timestamp()]);
+            $data->{'attempt'} = 
+                $response->[&Apache::loncoursedata::RDs_tries()];
+            $data->{'awarded'} = 
+                $response->[&Apache::loncoursedata::RDs_awarded()];
+            $data->{'awarddetail'} = 
+                $response->[&Apache::loncoursedata::RDs_awarddetail()];
+            my $rowextra = '';
+            my $row;
+            foreach my $col (@Columns) {
+                $row .= '"'.
+                    &Apache::loncommon::csv_translate($data->{$col->{'name'}}).'",';
+            }
+            if ($response_type eq 'option') {
+                $row .= &csv_option_results
+                    ($response->[&Apache::loncoursedata::RDs_submission()],
+                     $student->{'answer'},
+                     scalar(@Columns),$rowextra);
+            } elsif ($response_type eq 'radiobutton') {
+                $row .= &csv_radiobutton_results
+                    ($response->[&Apache::loncoursedata::RDs_submission()],
+                     $student->{'answer'},
+                     scalar(@Columns),$rowextra);
+            } else {
+                $row .= &csv_generic_results
+                    ($response->[&Apache::loncoursedata::RDs_submission()],
+                     $student->{'answer'},
+                     scalar(@Columns),$rowextra);
+            }
+            print $outputfile $row.$/;
+        }
+        &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
+                                                 'last student');
+    }
+    close($outputfile);
+    #
+    # Close the progress window
+    &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
+    #
+    # Tell the user where to get their csv file
+    $r->print('<br />'.
+              '<a href="'.$filename.'">'.&mt('Your csv file.').'</a>'."\n");
+    $r->rflush();
+    return;
+}
+
+sub csv_headers {
+    my ($Columns) = @_;
+    my $Str;
+    foreach my $column (@$Columns) {
+        $Str .= 
+            '"'.&Apache::loncommon::csv_translate($column->{'display'}).'",';
+    }
+    chop($Str);
+    return $Str;
+}
+
+sub csv_generic_headers {
+    my ($title) = @_;
+    if (! defined($title)) {
+        $title = &mt('Submission');
+    }
+    my $header = '"'.&Apache::loncommon::csv_translate($title).'"';
+    if ($ENV{'form.correctans'} eq 'true') {
+        $header .= ',"'.&Apache::loncommon::csv_translate(&mt('Correct')).'"';
+    }
+    return $header;
+}
+
+#------------------------------------------
+sub csv_essay_results {
+    my ($submission,$correct,$tablewidth,$rowextra)=@_;
+    #
+    $submission =~ s|\\r|\\\\r|g;
+    $submission =~ s|\\n|\\\\n|g;
+    #
+    return &csv_generic_results($submission,$correct,$tablewidth);
+}
+
+#------------------------------------------
+sub csv_radiobutton_results {
+    my ($submission,$correct,$tablewidth,$rowclass)=@_;
+    $submission =~ s/=[^=]*$//;
+    return &csv_generic_results($submission,$correct,$tablewidth,$rowclass);
+}
+
+#------------------------------------------
+sub csv_option_results {
+    my ($submission,$correct,$tablewidth,$rowclass)=@_;
+    $submission = join(',',
+                       map { 
+                           &Apache::lonnet::unescape($_) ;
+                       } sort split('&',$submission)
+                       );
+    if (defined($correct) && $correct !~ /^\s*$/) {
+        $correct =join(',',
+                       map { 
+                           &Apache::lonnet::unescape($_) ;
+                       } sort split('&',$submission));
+    }
+    return &csv_generic_results($submission,$correct,$tablewidth,$rowclass);
+}
+
+#------------------------------------------
+sub csv_generic_results {
+    my ($submission,$correct,$tablewidth,$rowclass)=@_;
+    my $Str .= 
+        '"'.&Apache::loncommon::csv_translate($submission).'"';
+    if ($ENV{'form.correctans'} eq 'true') {
+        $Str .= ',"'.&Apache::loncommon::csv_translate($correct).'"';
+    }
+    return $Str;
+}
 
 #########################################################
 #########################################################
@@ -169,15 +610,37 @@ sub prepare_excel_output {
                                       $problem->{'part'});
     $r->print('<h2>'.
               &mt('Preparing Excel spreadsheet of student responses').
-              '</h2>');
-    #
-    &GetStudentAnswers($r,$problem,$Students);
+              '</h2>'.
+              '<p>'.
+              &mt('See the status bar above for student answer computation progress').
+              '</p>');
+    #
+    if ($ENV{'form.correctans'} eq 'true') {
+        &Apache::lonstathelpers::GetStudentAnswers($r,$problem,$Students,
+                                                   'Statistics',
+                                                   'stats_status');
+        $r->print('<script>'.
+                  'window.document.Statistics.stats_status.value="'.
+                  'Done computing student answers.  Compiling spreadsheet.'.
+                  '";</script>');
+    }
     #
-    my @Columns = ( 'username','domain','attempt','time',
-                    'submission','correct', 'grading','awarded','weight',
-                    'score');
-    my $awarded_col = 7;
-    my $weight_col  = 8;
+    $r->rflush();
+    my @Columns;
+    if (exists($ENV{'form.concise'}) && $ENV{'form.concise'} eq 'true') {
+        foreach (@DefaultColumns) {
+            if ($_->{'name'} =~ /^(username|domain|id)$/){
+                push(@Columns,$_);
+            }
+        }
+    } else {
+        @Columns = @DefaultColumns;
+    }
+    my ($awarded_col,$weight_col);
+    for (my $i=0;$i<=$#Columns;$i++) {
+        if ($Columns[$i]->{'name'} eq 'weight' ) { $weight_col = $i; }
+        if ($Columns[$i]->{'name'} eq 'awarded') { $awarded_col = $i; }
+    }
     #
     # Create excel worksheet
     my $filename = '/prtspool/'.
@@ -206,17 +669,25 @@ sub prepare_excel_output {
     $worksheet->write($rows_output++,0,$resource->{'title'},$format->{'h1'});
     $worksheet->write($rows_output++,0,$resource->{'src'},$format->{'h3'});
     $rows_output++;
-    $worksheet->write_row($rows_output++,0,\@Columns,$format->{'bold'});
+    $worksheet->write_row($rows_output++,0,
+                          [map {$_->{'display'}} @Columns],
+                          $format->{'bold'});
     #
     # Populate the worksheet with the student data
+    my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
+        ($r,'Excel File Compilation Status',
+         'Excel File Compilation Progress', 
+         scalar(@$Students),'inline',undef,'Statistics','stats_status');
     foreach my $student (@$Students) {
         last if ($c->aborted());
+        
         my $results = &Apache::loncoursedata::get_response_data_by_student
             ($student,$resource->{'symb'},$respid);
         my %row;
         $row{'username'} = $student->{'username'};
         $row{'domain'}   = $student->{'domain'};
-        $row{'correct'} = $student->{'answer'};
+        $row{'id'}       = $student->{'id'};
+        $row{'correct'}  = $student->{'answer'};
         $row{'weight'} = &Apache::lonnet::EXT
             ('resource.'.$partid.'.weight',$resource->{'symb'},
              undef,undef,undef);
@@ -229,15 +700,21 @@ sub prepare_excel_output {
                     ($rows_output,$weight_col);
             my $cols_output = 0;
             foreach my $col (@Columns) {
-                if (! exists($row{$col})) {
+                if (! exists($row{$col->{'name'}})) {
                     $cols_output++;
                     next;
                 }
-                $worksheet->write($rows_output,$cols_output++,$row{$col});
+                $worksheet->write($rows_output,$cols_output++,
+                                  $row{$col->{'name'}});
             }
             $rows_output++;
         } else {
-            foreach my $response (@$results) {
+            for (my $i=0;$i<scalar(@$results);$i++) {
+                my $response = $results->[$i];
+                if ($ENV{'form.last_sub_only'} eq 'true' && 
+                    $i < (scalar(@$results)-1)) {
+                    next;
+                }
                 delete($row{'time'});
                 delete($row{'attempt'});
                 delete($row{'submission'});
@@ -259,7 +736,7 @@ sub prepare_excel_output {
                     # This will be interpreted as a formula.  That is bad!
                     $row{'submission'} = " ".$row{'submission'};
                 }
-                $row{'grading'} = $response->[
+                $row{'awarddetail'} = $response->[
                      &Apache::loncoursedata::RDs_awarddetail()];
                 $row{'awarded'} = $response->[
                      &Apache::loncoursedata::RDs_awarded()];
@@ -272,12 +749,15 @@ sub prepare_excel_output {
                 my $cols_output = 0;
                 foreach my $col (@Columns) {
                     $worksheet->write($rows_output,$cols_output++,$row{$col},
-                                      $row_format{$col});
+                                      $row_format{$col->{'name'}});
                 }
                 $rows_output++;
             }
         } # End of else clause on if (! defined($results) ....
+        &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
+                                                 'last student');
     }
+    &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
     #
     # Close the excel file
     $workbook->close();
@@ -286,40 +766,14 @@ sub prepare_excel_output {
     $r->print('<p><a href="'.$filename.'">'.
               &mt('Your Excel spreadsheet.').
               '</a></p>'."\n");
-}
-
-sub GetStudentAnswers {
-    my ($r,$problem,$Students) = @_;
-    my $c = $r->connection();
-    my %Answers;
-    my ($resource,$partid,$respid) = ($problem->{'resource'},
-                                      $problem->{'part'},
-                                      $problem->{'respid'});
-    # Open progress window
-    my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
-        ($r,'Student Answer Compilation Status',
-         'Student Answer Compilation Progress', scalar(@$Students));
-    $r->print("<table>\n");
-    $r->rflush();
-    foreach my $student (@$Students) {
-        last if ($c->aborted());
-        my $sname = $student->{'username'};
-        my $sdom = $student->{'domain'};
-        my $answer = &Apache::lonstathelpers::analyze_problem_as_student
-            ($resource,$sname,$sdom,$partid,$respid);
-        &Apache::lonhtmlcommon::Increment_PrgWin($r,\%prog_state,
-                                                 &mt('last student'));
-        $student->{'answer'} = $answer;
-    }
-    return if ($c->aborted());
-    $r->print("</table>\n");
+    $r->print('<script>'.
+              'window.document.Statistics.stats_status.value="'.
+              'Done compiling spreadsheet.  See link below to download.'.
+              '";</script>');
     $r->rflush();
-    # close progress window
-    &Apache::lonhtmlcommon::Close_PrgWin($r,\%prog_state);
     return;
 }
 
-
 #########################################################
 #########################################################
 ##
@@ -329,18 +783,29 @@ sub GetStudentAnswers {
 #########################################################
 sub CreateInterface {
     ##
+    ## Output Selection
+    my $OutputSelector = $/.'<select name="output">'.$/;
+    foreach ('HTML','Excel','CSV') {
+        $OutputSelector .= '    <option value="'.lc($_).'"';
+        if ($ENV{'form.output'} eq lc($_)) {
+            $OutputSelector .= ' selected ';
+        }
+        $OutputSelector .='>'.&mt($_).'</option>'.$/;
+    } 
+    $OutputSelector .= '</select>'.$/;
+    ##
     ## Environment variable initialization
     my $Str = '';
     $Str .= &Apache::lonhtmlcommon::breadcrumbs
         (undef,'Student Submission Reports');
+    $Str .= '<p>';
     $Str .= '<table cellspacing="5">'."\n";
     $Str .= '<tr>';
-    $Str .= '<td align="center"><b>'.&mt('Sections').'</b></td>';
-    $Str .= '<td align="center"><b>'.&mt('Enrollment Status').'</b></td>';
-    $Str .= '<td align="center">&nbsp;</td>';
+    $Str .= '<th>'.&mt('Sections').'</th>';
+    $Str .= '<th>'.&mt('Enrollment Status').'</th>';
+    $Str .= '<th>'.&mt('Output Options').'</th>';
     $Str .= '</tr>'."\n";
-    ##
-    ## 
+    #
     $Str .= '<tr><td align="center">'."\n";
     $Str .= &Apache::lonstatistics::SectionSelect('Section','multiple',5);
     $Str .= '</td>';
@@ -349,31 +814,58 @@ sub CreateInterface {
     $Str .= &Apache::lonhtmlcommon::StatusOptions(undef,undef,5);
     $Str .= '</td>';
     #
-    $Str .= '<td></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 ';
+    }
+    $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 .= 'value="true" />';
+    #
+    # Only show last submission checkbox
+    my $last_sub_checkbox = '<input type="checkbox" name="last_sub_only" ';
+    if (exists($ENV{'form.last_sub_only'}) && 
+        $ENV{'form.last_sub_only'} eq 'true') {
+        $last_sub_checkbox .= 'checked ';
+    }
+    $last_sub_checkbox.= 'value="true" />';
+    #
+    # Concise view checkbox
+    my $concise_view_checkbox = '<input type="checkbox" name="concise" ';
+    if (exists($ENV{'form.concise'}) && $ENV{'form.concise'} eq 'true') {
+        $concise_view_checkbox .= 'checked ';
+    }
+    $concise_view_checkbox .= 'value="true" />';
+    #
+    $Str .= '<td align="right" halign="top">'.
+        '<b>'.&mt('Output Format: [_1]',$OutputSelector).'</b><br />'.$/.
+        '<label><b>'.
+        &mt('show problem [_1]',$prob_checkbox).'</b></label><br />'.
+        '<label><b>'.
+        &mt('compute correct answers [_1]',$ans_checkbox).'</b></label><br />'.
+        '<label><b>'.
+        &mt('final answer only [_1]',$last_sub_checkbox).'</b></label><br />'.
+        '<label><b>'.
+        &mt('concise view [_1]',$concise_view_checkbox).'</b></label><br />'.
+        '</td>';
     #
-    my $only_seq_with_assessments = sub { 
-        my $s=shift;
-        if ($s->{'num_assess'} < 1) { 
-            return 0;
-        } else { 
-            return 1;
-        }
-    };
-    ##
-    ##
     $Str .= '</tr>'."\n";
     $Str .= '</table>'."\n";
     #
-    # We do this to make sure the sequence information is initialized
-    &Apache::lonstatistics::MapSelect('Maps','multiple,all',5,
-                                              $only_seq_with_assessments);
-    
-    #
+    $Str .= '<nobr>'.&mt('Status: [_1]',
+                         '<input type="text" '.
+                         'name="stats_status" size="60" value="" />').
+            '</nobr>'.'</p>';    
+    ##
     return $Str;
 }
 
-
-
 1;
 
 __END__