--- loncom/interface/statistics/lonstudentassessment.pm	2005/02/28 17:23:11	1.116
+++ loncom/interface/statistics/lonstudentassessment.pm	2005/03/21 19:47:54	1.120
@@ -1,6 +1,6 @@
 # The LearningOnline Network with CAPA
 #
-# $Id: lonstudentassessment.pm,v 1.116 2005/02/28 17:23:11 matthew Exp $
+# $Id: lonstudentassessment.pm,v 1.120 2005/03/21 19:47:54 matthew Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -173,11 +173,13 @@ sub BuildStudentAssessmentPage {
     if (! exists($ENV{'form.notfirstrun'}) && ! $single_student_mode) {
         return;
     }
+    $r->print('<h4>'.
+              &Apache::lonstatistics::section_and_enrollment_description().
+              '</h4>');
     #
     my $initialize     = \&html_initialize;
     my $output_student = \&html_outputstudent;
     my $finish         = \&html_finish;
-    &Apache::lonnet::logthis('got here! 1');
     #
     if ($output_mode eq 'excel') {
         $initialize     = \&excel_initialize;
@@ -189,7 +191,6 @@ sub BuildStudentAssessmentPage {
         $finish         = \&csv_finish;
     }
     #
-    &Apache::lonnet::logthis('got here! 2');
     if($c->aborted()) {  return ; }
     #
     # Determine which students we want to look at
@@ -214,7 +215,6 @@ sub BuildStudentAssessmentPage {
     #
     # Call the initialize routine selected above
     $initialize->($r);
-    &Apache::lonnet::logthis('got here! 3');
     foreach my $student (@Students) {
         if($c->aborted()) { 
             $finish->($r);
@@ -353,7 +353,7 @@ sub CreateInterface {
         &mt('Clear Caches').'" />';
     $Str .= '&nbsp;'x5;
     $Str .= 
-        &mt('Status[_1]',
+        &mt('Status [_1]',
             '<input type="text" name="stats_status" size="60" value="" />');
     $Str .= '<br />';
     return $Str;
@@ -683,7 +683,7 @@ sub html_initialize {
                 # Use 1 digit for a space
                 $width{$symb}->{'width_sum'} += 1;            
             }
-	    $total_count += $width{$symb}->{'num_assess_parts'};
+	    $total_count += &count_parts($navmap,$seq);
             # Use 3 digits for the sum
             $width{$symb}->{'width_sum'} += 3;
         }
@@ -763,7 +763,7 @@ sub html_outputstudent {
     my $studentstats;
     my $PerformanceStr = '';
     foreach my $seq (@sequences) {
-        &Apache::lonnet::logthis('computing student data for '.$seq->compTitle);
+        my $symb = $seq->symb;
         my ($performance,$performance_length,$score,$seq_max,$rawdata);
         if ($chosen_output->{'tries'}) {
             ($performance,$performance_length,$score,$seq_max,$rawdata) =
@@ -775,7 +775,8 @@ sub html_outputstudent {
                                                  $navmap,$seq,$show_links);
         }
         my $ratio='';
-        if ($chosen_output->{'every_problem'}) {
+        if ($chosen_output->{'every_problem'} && 
+            $chosen_output->{'sequence_sum'}) {
             $ratio .= ' ';
         }
         if ($chosen_output->{'sequence_sum'} && $score ne ' ') {
@@ -795,15 +796,15 @@ sub html_outputstudent {
             $performance = '';
 	    $performance_length=0;
         }
-        $performance .= ' 'x($width{$seq->symb}->{'width_total'} -
+        $performance .= ' 'x($width{$symb}->{'width_total'} -
                              $performance_length -
-                             $width{$seq->symb}->{'width_sum'}).
+                             $width{$symb}->{'width_sum'}).
             $ratio;
         #
         $Str .= $performance.$padding;
         #
-        $studentstats->{$seq->symb}->{'score'}= $score;
-        $studentstats->{$seq->symb}->{'max'}  = $seq_max;
+        $studentstats->{$symb}->{'score'}= $score;
+        $studentstats->{$symb}->{'max'}  = $seq_max;
     }
     #
     # Total it up and store the statistics info.
@@ -939,6 +940,7 @@ sub SingleStudentTotal {
 
 my $excel_sheet;
 my $excel_workbook;
+my $format;
 
 my $filename;
 my $rows_output;
@@ -1005,9 +1007,6 @@ sub excel_initialize {
     }
     return if ($request_aborted);
     #
-    $filename = '/prtspool/'.
-        $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
-            time.'_'.rand(1000000000).'.xls';
     #
     $excel_workbook = undef;
     $excel_sheet = undef;
@@ -1035,24 +1034,9 @@ sub excel_initialize {
     my $first_data_row = $rows_output++;
     #
     # Create sheet
-    $excel_workbook = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
-    #
-    # Check for errors
-    if (! defined($excel_workbook)) {
-        $r->log_error("Error creating excel spreadsheet $filename: $!");
-        $r->print("Problems creating new Excel file.  ".
-                  "This error has been logged.  ".
-                  "Please alert your LON-CAPA administrator");
-        return ;
-    }
-    #
-    # The excel spreadsheet stores temporary data in files, then put them
-    # together.  If needed we should be able to disable this (memory only).
-    # The temporary directory must be specified before calling 'addworksheet'.
-    # File::Temp is used to determine the temporary directory.
-    $excel_workbook->set_tempdir($Apache::lonnet::tmpdir);
-    #
-    my $format = &Apache::loncommon::define_excel_formats($excel_workbook);
+    ($excel_workbook,$filename,$format)=
+        &Apache::loncommon::create_workbook($r);
+    return if (! defined($excel_workbook));
     #
     # Add a worksheet
     my $sheetname = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
@@ -1067,24 +1051,10 @@ sub excel_initialize {
     #
     # Put a description of the sections listed
     my $sectionstring = '';
-    my @Sections = @Apache::lonstatistics::SelectedSections;
-    if (scalar(@Sections) > 1) {
-        if (scalar(@Sections) > 2) {
-            my $last = pop(@Sections);
-            $sectionstring = "Sections ".join(', ',@Sections).', and '.$last;
-        } else {
-            $sectionstring = "Sections ".join(' and ',@Sections);
-        }
-    } else {
-        if ($Sections[0] eq 'all') {
-            $sectionstring = "All sections";
-        } else {
-            $sectionstring = "Section ".$Sections[0];
-        }
-    }
-    $excel_sheet->write($header_row,$cols_output++,$sectionstring,
+    my @Sections = &Apache::lonstatistics::get_selected_sections();
+    $excel_sheet->write($header_row,$cols_output++,
+                        &Apache::lonstatistics::section_and_enrollment_description('plain text'),
                         $format->{'h3'});
-    $cols_output += scalar(@Sections);
     #
     # Put the date in there too
     $excel_sheet->write($header_row,$cols_output++,
@@ -1575,22 +1545,18 @@ END
          'inline',undef,'Statistics','stats_status');
     #
     # Open a file
-    $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.");
-        $outputfile = undef;
-    }
+    ($outputfile,$filename) = &Apache::loncommon::create_text_file($r,'csv');
+    if (! defined($outputfile)) { return ''; }
     #
     # Datestamp
     my $description = $ENV{'course.'.$ENV{'request.course.id'}.'.description'};
     print $outputfile '"'.&Apache::loncommon::csv_translate($description).'",'.
         '"'.&Apache::loncommon::csv_translate(scalar(localtime(time))).'"'.
             "\n";
+    print $outputfile '"'.
+        &Apache::loncommon::csv_translate
+        (&Apache::lonstatistics::section_and_enrollment_description()).
+        '"'."\n";
     foreach my $item ('shortdesc','non_html_notes') {
         next if (! exists($chosen_output->{$item}));
         print $outputfile