--- loncom/interface/spreadsheet/classcalc.pm	2003/05/16 20:55:11	1.1
+++ loncom/interface/spreadsheet/classcalc.pm	2003/06/23 16:06:11	1.9
@@ -1,5 +1,5 @@
 #
-# $Id: classcalc.pm,v 1.1 2003/05/16 20:55:11 matthew Exp $
+# $Id: classcalc.pm,v 1.9 2003/06/23 16:06:11 matthew Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -51,6 +51,7 @@ use Apache::loncoursedata();
 use Apache::lonhtmlcommon();
 use Apache::Spreadsheet;
 use Apache::studentcalc;
+use Apache::lonstatistics();
 use HTML::Entities();
 use Spreadsheet::WriteExcel;
 use Apache::lonnet;
@@ -58,30 +59,46 @@ use Time::HiRes;
 
 @Apache::classcalc::ISA = ('Apache::Spreadsheet');
 
-sub get_classlist {
+##
+## Package variable
+##
+
+my @Students;
+
+sub initialize {
+    &Apache::lonstatistics::clear_classlist_variables();
+    @Students = &Apache::lonstatistics::get_students();
+    return;
+}
+
+sub html_header {
     my $self = shift;
-    # Retrieve the classlist
-    my @Students = ();
-    my ($classlist,$field_names) = &Apache::loncoursedata::get_classlist
-        ($self->{'cid'},$self->{'cdom'},$self->{'cnum'});
-    while (my ($student,$student_data) = each (%$classlist)) {
-        my $studenthash = ();
-        for (my $i=0; $i< scalar(@$field_names);$i++) {
-            my $field = $field_names->[$i];
-            $studenthash->{$field}=$student_data->[$i];
-        }
-        # This is where we can skip students because they are in 
-        # the wrong section, have expired or pending roles, whatever...
-        push (@Students,$studenthash);
+    my ($toprow,$bottomrow);
+    &Apache::lonstatistics::clear_classlist_variables();
+    foreach (['Sections',&Apache::lonstatistics::SectionSelect('Section','multpile',3)],
+             ['Enrollment Status',&Apache::lonhtmlcommon::StatusOptions(undef,undef,3)],
+             ['Output Format',&Apache::Spreadsheet::output_selector()]) {
+        my ($name,$selector) = @{$_};
+        $toprow .= '<th align="center"><b>'.$name.'</b></th>';
+        $bottomrow .= '<td>'.$selector.'</td>';
     }
-    my @SortedStudents = sort { $a->{'fullname'} cmp $b->{'fullname'} } @Students;
-    return @SortedStudents;
+    return "<p>\n<table>\n".
+        "<tr>".$toprow."</tr>\n".
+        "<tr>".$bottomrow."</tr>\n".
+        "</table>\n</p>";
 }
 
 sub get_title {
     my $self = shift;
-    my $title = '<h2>'.$self->{'coursedesc'}."</h2>\n";
     # Section info should be included
+    my @title = ($self->{'coursedesc'}, scalar(localtime(time)) );
+    return @title;
+}
+
+sub get_html_title {
+    my $self = shift;
+    my ($classcalc_title,$time) = $self->get_title();
+    my $title = '<h1>'.$classcalc_title."</h1>\n".'<h3>'.$time."</h3>\n";
     return $title;
 }
 
@@ -98,6 +115,7 @@ sub outsheet_html {
     my $num_uneditable = 26;
     my $num_left = 52-$num_uneditable;
     my $tableheader =<<"END";
+<p>
 <table border="2">
 <tr>
   <th colspan="2" rowspan="2"><font size="+2">Course</font></th>
@@ -131,6 +149,7 @@ END
     #
     # Prepare to output rows
     $tableheader =<<"END";
+</p><p>
 <table border="2">
 <tr><th>Row</th>
   <th>student</th><th>username</th><th>domain</th>
@@ -146,7 +165,7 @@ END
     }
     #
     my $num_output = 0;
-    foreach my $student ($self->get_classlist()) {
+    foreach my $student (@Students) {
 	if ($num_output++ % 50 == 0) {
 	    $r->print("</table>\n".$tableheader);
 	}
@@ -156,25 +175,71 @@ END
             '&sdomain='.$student->{'domain'}.'">';
         $student->{'section'} = 'none' if ($student->{'section'} eq '-1');
 	$r->print('<tr>'.'<td>'.$rownum.'</td>'.
-		  '<td>'.$link.$student->{'fullname'}.'</a></td>'.
-		  '<td>'.$student->{'username'}.'</td>'.
+		  '<td>'.$student->{'fullname'}.'</td>'.
+		  '<td>'.$link.$student->{'username'}.'</a></td>'.
 		  '<td>'.$student->{'domain'}  .'</td>'.
 		  '<td>'.$student->{'section'} .'</td>'.
 		  '<td>'.$student->{'status'}  .'</td>'.
 		  $self->html_row($num_uneditable,$rownum)."</tr>\n");
     }
-    $r->print("</table>\n");
+    $r->print("</table></p>\n");
     return;
 }
 
-sub outsheet_csv {
+sub excel_rows {
+    # writes the meat of the spreadsheet to an excel worksheet.  Called
+    # by Spreadsheet::outsheet_excel;
     my $self = shift;
-    my ($r) = @_;
+    my ($worksheet,$cols_output,$rows_output) = @_;
+    #
+    # Write a header row
+    $cols_output = 0;
+    foreach my $value ('fullname','username','domain','section','status') {
+        $worksheet->write($rows_output,$cols_output++,$value);
+    }
+    $rows_output++;    
+    #
+    # Write each students row
+    foreach my $student (@Students) {
+        $cols_output = 0;
+	my $rownum = $self->get_row_number_from_key
+	    ($student->{'username'}.':'.$student->{'domain'});
+        $student->{'section'} = 'none' if ($student->{'section'} eq '-1');
+        my @studentdata = ($student->{'fullname'},
+                           $student->{'username'},
+                           $student->{'domain'},
+                           $student->{'section'},
+                           $student->{'status'});
+        $self->excel_output_row($worksheet,$rownum,$rows_output++,
+                                @studentdata);
+    }
+    return;
 }
 
-sub outsheet_excel {
+sub csv_rows {
+    # writes the meat of the spreadsheet to an excel worksheet.  Called
+    # by Spreadsheet::outsheet_excel;
     my $self = shift;
-    my ($r) = @_;
+    my ($filehandle) = @_;
+    #
+    # Write a header row
+
+    $self->csv_output_row($filehandle,undef,
+                          ('fullname','username','domain','section','status'));
+    #
+    # Write each students row
+    foreach my $student (@Students) {
+	my $rownum = $self->get_row_number_from_key
+	    ($student->{'username'}.':'.$student->{'domain'});
+        $student->{'section'} = 'none' if ($student->{'section'} eq '-1');
+        my @studentdata = ($student->{'fullname'},
+                           $student->{'username'},
+                           $student->{'domain'},
+                           $student->{'section'},
+                           $student->{'status'});
+        $self->csv_output_row($filehandle,$rownum,@studentdata);
+    }
+    return;
 }
 
 sub outsheet_recursive_excel {
@@ -182,27 +247,21 @@ sub outsheet_recursive_excel {
     my ($r) = @_;
 } 
 
-sub display {
-    my $self = shift;
-    my ($r) = @_;
-    $self->compute($r);
-    # display as html/csv/excel/etc....
-    $self->outsheet_html($r);
-    return;
-}
-
 sub compute {
     my $self = shift;
     my ($r) = @_;
     $self->initialize_safe_space();
     my %c = $self->constants();
     my %f = $self->formulas();
-    my @Students = $self->get_classlist();
     my %prog_state=&Apache::lonhtmlcommon::Create_PrgWin
         ($r,'Spreadsheet Computation Status',
          'Spreadsheet Computation', scalar(@Students));
+    &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
+                                          'Processing course structure');
     &Apache::studentcalc::initialize_package();
-    foreach my $student ($self->get_classlist()) {
+    &Apache::lonhtmlcommon::Update_PrgWin($r,\%prog_state,
+                                          'Processing first student');
+    foreach my $student (@Students) {
         my $sname = $student->{'username'}.':'.$student->{'domain'};
 	my $studentsheet = Apache::studentcalc->new
 	    ($student->{'username'},$student->{'domain'},undef);
@@ -227,6 +286,7 @@ sub compute {
     $self->constants(\%c);
     $self->formulas(\%f);
     $self->calcsheet();
+    $self->save() if ($self->need_to_save());
 }
 
 1;