--- loncom/interface/spreadsheet/studentcalc.pm	2003/05/16 20:55:11	1.1
+++ loncom/interface/spreadsheet/studentcalc.pm	2003/05/29 13:39:38	1.8
@@ -1,5 +1,5 @@
 #
-# $Id: studentcalc.pm,v 1.1 2003/05/16 20:55:11 matthew Exp $
+# $Id: studentcalc.pm,v 1.8 2003/05/29 13:39:38 matthew Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -48,9 +48,11 @@ package Apache::studentcalc;
 use strict;
 use Apache::Constants qw(:common :http);
 use Apache::lonnet;
+use Apache::loncommon();
+use Apache::loncoursedata();
 use Apache::lonnavmaps;
-use Apache::Spreadsheet;
-use Apache::assesscalc;
+use Apache::Spreadsheet();
+use Apache::assesscalc();
 use HTML::Entities();
 use Spreadsheet::WriteExcel;
 use Time::HiRes;
@@ -62,12 +64,24 @@ my %Exportrows = ();
 
 my $current_course;
 
+sub initialize {
+    &initialize_sequence_cache();
+}
+
 sub initialize_package {
     $current_course = $ENV{'request.course.id'};
     &initialize_sequence_cache();
     &load_cached_export_rows();
 }
 
+sub ensure_correct_sequence_data {
+    if ($current_course ne $ENV{'request.course.id'}) {
+        &initialize_sequence_cache();
+        $current_course = $ENV{'request.course.id'};
+    }
+    return;
+}
+
 sub initialize_sequence_cache {
     #
     # Set up the sequences and assessments
@@ -76,7 +90,7 @@ sub initialize_sequence_cache {
         &Apache::loncoursedata::get_sequence_assessment_data();
     if (! defined($top) || ! ref($top)) {
         # There has been an error, better report it
-        &Apache::lonnet::logthis('top is undefined');
+        &Apache::lonnet::logthis('top is undefined (studentcalc.pm)');
         return;
     }
     @Sequences = @{$sequences} if (ref($sequences) eq 'ARRAY');
@@ -89,9 +103,34 @@ sub clear_package {
 
 sub get_title {
     my $self = shift;
-    my $title = '';
-    $title .= '<h2>Spreadsheet for '.
-        $self->{'name'}.'@'.$self->{'domain'}.'</h2>';
+    my @title = ();
+    #
+    # Determine the students name
+    my %userenv = &Apache::loncoursedata::GetUserName($self->{'name'},
+                                                      $self->{'domain'});
+    my $name = join(' ',
+                 @userenv{'firstname','middlename','lastname','generation'});
+    $name =~ s/\s+$//;
+
+    push (@title,$name);
+    push (@title,$self->{'coursedesc'});
+    push (@title,scalar(localtime(time)));
+    return @title;
+}
+
+sub get_html_title {
+    my $self = shift;
+    my ($name,$desc,$time) = $self->get_title();
+    my $title = '<h1>'.$name;
+    if ($ENV{'user.name'} ne $self->{'name'} && 
+        $ENV{'user.domain'} ne $self->{'domain'}) {
+        $title .= &Apache::loncommon::aboutmewrapper
+                                    ($self->{'name'}.'@'.$self->{'domain'},
+                                     $self->{'name'},$self->{'domain'});
+    }
+    $title .= "</h1>\n";
+    $title .= '<h2>'.$desc."</h2>\n";
+    $title .= '<h3>'.$time.'</h3>';
     return $title;
 }
 
@@ -111,12 +150,15 @@ sub outsheet_html {
     # Get the list of assessment files #
     ####################################
     my @AssessFileNames = $self->othersheets('assesscalc');
+    my $editing_is_allowed = &Apache::lonnet::allowed('mgr',
+                                                $ENV{'request.course.id'});
     ####################################
     # Determine table structure        #
     ####################################
     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">Student</font></th>
@@ -137,23 +179,40 @@ END
         $label_num++;
     }
     $tableheader .="</tr>\n";
-    #
-    $r->print($tableheader);
-    #
-    # Print out template row
-    $r->print('<tr><td>Template</td><td>&nbsp;</td>'.
-	      $self->html_template_row($num_uneditable)."</tr>\n");
-    #
-    # Print out summary/export row
-    $r->print('<tr><td>Export</td><td>0</td>'.
-	      $self->html_export_row()."</tr>\n");
+    if ($self->blackout()) {
+        $r->print('<font color="red" size="+2"><p>'.
+                  'Some computations are not available at this time.<br />'.
+                  'There are problems whose status you are allowed to view.'.
+                  '</font></p>'."\n");
+    } else {
+        $r->print($tableheader);
+        #
+        # Print out template row
+        if (exists($ENV{'request.role.adv'}) && $ENV{'request.role.adv'}) {
+            $r->print('<tr><td>Template</td><td>&nbsp;</td>'.
+                      $self->html_template_row($num_uneditable)."</tr>\n");
+        }
+        #
+        # Print out summary/export row
+        $r->print('<tr><td>Summary</td><td>0</td>'.
+                  $self->html_export_row()."</tr>\n");
+    }
     $r->print("</table>\n");
     #
     # Prepare to output rows
-    $tableheader =<<"END";
+    if (exists($ENV{'request.role.adv'}) && $ENV{'request.role.adv'}) {
+        $tableheader =<<"END";
+</p><p>
 <table border="2">
 <tr><th>Row</th><th>Assessment</th>
 END
+    } else {
+        $tableheader =<<"END";
+</p><p>
+<table border="2">
+<tr><th>&nbsp;</th><th>Assessment</th>
+END
+    }
     foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){
 	if ($label_num<$num_uneditable) { 
             $tableheader.='<td bgcolor="#FFDDDD">';
@@ -176,22 +235,37 @@ END
 	    next if ($resource->{'type'} ne 'assessment');
 	    my $rownum = $self->get_row_number_from_key($resource->{'symb'});
             my $assess_filename = $self->{'row_source'}->{$rownum};
-	    my $row_output = '<tr><td>'.$rownum.'</td>';
-            $row_output .= '<td>'.
-                '<a href="/adm/assesscalc?sname='.$self->{'name'}.
-                '&sdomain='.$self->{'domain'}.
-                '&filename='.$assess_filename.
-                '&usymb='.$resource->{'symb'}.'">'.
-                $resource->{'title'}.'</a>';
-            $row_output .= &assess_file_selector($rownum,
-                                                 $assess_filename,
-                                                 \@AssessFileNames);
-            $row_output .= '</td>'.$self->html_row($num_uneditable,$rownum).
-                "</tr>\n";
+            my $row_output = '<tr>';
+            if ($editing_is_allowed) {
+                $row_output .= '<td>'.$rownum.'</td>';
+                $row_output .= '<td>'.
+                    '<a href="/adm/assesscalc?sname='.$self->{'name'}.
+                    '&sdomain='.$self->{'domain'}.
+                    '&filename='.$assess_filename.
+                    '&usymb='.&Apache::lonnet::escape($resource->{'symb'}).
+                    '">'.$resource->{'title'}.'</a><br />';
+                $row_output .= &assess_file_selector($rownum,
+                                                     $assess_filename,
+                                                     \@AssessFileNames).
+                                                         '</td>';
+            } else {
+                $row_output .= '<td><a href="'.$resource->{'src'}.'?symb='.
+                    &Apache::lonnet::escape($resource->{'symb'}).
+                    '">Go&nbsp;To</a>';
+                $row_output .= '</td><td>'.$resource->{'title'}.'</td>';
+            }
+            if ($self->blackout() && $self->{'blackout_rows'}->{$rownum}>0) {
+                $row_output .= 
+                    '<td colspan="52">Unavailable at this time</td></tr>'."\n";
+            } else {
+                $row_output .= $self->html_row($num_uneditable,$rownum).
+                    "</tr>\n";
+            }
             $r->print($row_output);
 	}
 	$r->print("</table>\n");
     }
+    $r->print("</p>\n");
     return;
 }
 
@@ -208,7 +282,9 @@ END
 ########################################################
 sub assess_file_selector {
     my ($row,$default,$AssessFiles)=@_;
-    return '' if (!defined($AssessFiles) || ! @$AssessFiles);
+    if (!defined($AssessFiles) || ! @$AssessFiles) {
+        return '';
+    }
     return '' if (! &Apache::lonnet::allowed('mgr',$ENV{'request.course.id'}));
     my $element_name = 'FileSelect_'.$row;
     my $load_dialog = '<select size="1" name="'.$element_name.'" '.
@@ -248,27 +324,67 @@ sub modify_cell {
     return;
 }
 
-sub outsheet_csv {
+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,
+                          ('Container','Assessment title'));
+    #
+    # Write each assessments row
+    if (scalar(@Sequences)< 1) {
+        &initialize_sequence_cache();
+    }
+    foreach my $Sequence (@Sequences) {
+	next if ($Sequence->{'num_assess'} < 1);
+	foreach my $resource (@{$Sequence->{'contents'}}) {
+	    my $rownum = $self->get_row_number_from_key($resource->{'symb'});
+            my @assessdata = ($Sequence->{'title'},
+                              $resource->{'title'});
+            $self->csv_output_row($filehandle,$rownum,@assessdata);
+        }
+    }
+    return;
 }
-sub outsheet_excel {
+
+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 ('Container','Assessment title') {
+        $worksheet->write($rows_output,$cols_output++,$value);
+    }
+    $rows_output++;    
+    #
+    # Write each assessments row
+    if (scalar(@Sequences)< 1) {
+        &initialize_sequence_cache();
+    }
+    foreach my $Sequence (@Sequences) {
+	next if ($Sequence->{'num_assess'} < 1);
+	foreach my $resource (@{$Sequence->{'contents'}}) {
+	    my $rownum = $self->get_row_number_from_key($resource->{'symb'});
+            my @assessdata = ($Sequence->{'title'},
+                              $resource->{'title'});
+            $self->excel_output_row($worksheet,$rownum,$rows_output++,
+                                    @assessdata);
+        }
+    }
+    return;
 }
+
 sub outsheet_recursive_excel {
     my $self = shift;
     my ($r) = @_;
 } 
 
-sub display {
-    my $self = shift;
-    my ($r) = @_;
-    $self->compute();
-    $self->outsheet_html($r);
-    return;
-}
-
 sub set_row_sources {
     my $self = shift;
     while (my ($cell,$value) = each(%{$self->{'formulas'}})) {
@@ -325,6 +441,10 @@ sub compute {
                                                       $assess_filename,
                                                       $resource->{'symb'});
             my @exportdata = $assessSheet->export_data();
+            if ($assessSheet->blackout()) {
+                $self->blackout(1);
+                $self->{'blackout_rows'}->{$rownum} = 1;
+            }
             #
             # Be sure not to disturb the formulas in the 'A' column
             my $data = shift(@exportdata);
@@ -433,6 +553,7 @@ Writes the export data for this student
 #############################################
 sub save_export_data {
     my $self = shift;
+    return if ($self->temporary());
     my $student = $self->{'name'}.':'.$self->{'domain'};
     return if (! exists($Exportrows{$student}));
     return if (! $self->is_default());