--- loncom/interface/Attic/lonspreadsheet.pm	2002/11/06 20:00:13	1.134
+++ loncom/interface/Attic/lonspreadsheet.pm	2002/11/07 15:37:02	1.135
@@ -1,5 +1,5 @@
 #
-# $Id: lonspreadsheet.pm,v 1.134 2002/11/06 20:00:13 matthew Exp $
+# $Id: lonspreadsheet.pm,v 1.135 2002/11/07 15:37:02 matthew Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -1109,9 +1109,8 @@ sub exportdata {
 
 # ========================================================== End of Spreadsheet
 # =============================================================================
-
 #
-# Procedures for screen output
+# Procedures for spreadsheet output
 #
 # --------------------------------------------- Produce output row n from sheet
 
@@ -1145,9 +1144,15 @@ sub sort_indicies {
     return @sortidx;
 }
 
-########################################################################
-########################################################################
-
+#############################################################
+###                                                       ###
+###              Spreadsheet Output Routines              ###
+###                                                       ###
+#############################################################
+
+############################################
+##         HTML output routines           ##
+############################################
 sub html_editable_cell {
     my ($cell,$bgcolor) = @_;
     my $result;
@@ -1179,9 +1184,6 @@ sub html_uneditable_cell {
     return ' '.$value.' ';
 }
 
-########################################################################
-########################################################################
-
 sub outsheet_html  {
     my ($sheet,$r) = @_;
     my ($num_uneditable,$realm,$row_type);
@@ -1351,6 +1353,9 @@ END
     return 1;
 }
 
+############################################
+##         csv output routines            ##
+############################################
 sub outsheet_csv   {
     my ($sheet,$r) = @_;
     my $csvdata = '';
@@ -1394,19 +1399,97 @@ sub outsheet_csv   {
     return 1;
 }
 
+############################################
+##        Excel output routines           ##
+############################################
+sub outsheet_recursive_excel {
+    my ($sheet,$r) = @_;
+    return undef if ($sheet->{'sheettype'} ne 'classcalc');
+    my ($workbook,$filename) = &create_excel_spreadsheet($sheet,$r);
+    return undef if (! defined($workbook));
+    #
+    # Create main worksheet
+    my $main_worksheet = $workbook->addworksheet('main');
+    #
+    # Figure out who the students are
+    my %f=&getformulas($sheet);
+    my $count = 0;
+    $r->print("<br />\n");
+    $r->rflush();
+    foreach (keys(%f)) {
+	next if ($_!~/^A(\d+)/ || $1 == 0 || ($f{$_}=~/^[!~-]/));
+        $count++;
+        my ($sname,$sdom) = split(':',$f{$_});
+        my $student_excel_worksheet=$workbook->addworksheet($sname.'@'.$sdom);
+        # Create a new spreadsheet
+        my $studentsheet = &makenewsheet($sname,$sdom,'studentcalc',undef);
+        # Read in the spreadsheet definition
+        &readsheet($studentsheet,'default_studentcalc');
+        # Determine the structure (contained assessments, etc) of the sheet
+        &updatesheet($studentsheet);
+        # Load in the (possibly cached) data from the assessment sheets        
+        &loadrows($studentsheet);
+        # Compute the sheet
+        &calcsheet($studentsheet);
+        &Apache::lonnet::logthis("Sheet value for A0 = ".$sheet->{'values'}->{'A0'});
+        # Stuff the sheet into excel
+        &export_sheet_as_excel($studentsheet,$student_excel_worksheet);
+        if ($count % 5 == 0) {
+            $r->print($count.' students completed<br />');
+            $r->rflush();
+        }
+    }
+    #
+    $r->print('All students spreadsheets completed<br />');
+    $r->rflush();
+    #
+    # &export_sheet_as_excel fills $worksheet with the data from $sheet
+    &export_sheet_as_excel($sheet,$main_worksheet);
+    #
+    $workbook->close();
+    # Okay, the spreadsheet is taken care of, so give the user a link.
+    $r->print('<br /><br />'.
+              '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
+    return 1;
+}
+
 sub outsheet_excel {
     my ($sheet,$r) = @_;
+    my ($workbook,$filename) = &create_excel_spreadsheet($sheet,$r);
+    return undef if (! defined($workbook));
+    my $sheetname;
+    if ($sheet->{'sheettype'} eq 'classcalc') {
+        $sheetname = 'Main';
+    } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
+        $sheetname = $sheet->{'uname'}.'@'.$sheet->{'udom'};
+    } elsif ($sheet->{'sheettype'} eq 'assesscalc') {
+        $sheetname = $sheet->{'uname'}.'@'.$sheet->{'udom'}.' assessment';
+    }
+    my $worksheet = $workbook->addworksheet($sheetname);
+    #
+    # &export_sheet_as_excel fills $worksheet with the data from $sheet
+    &export_sheet_as_excel($sheet,$worksheet);
+    #
+    $workbook->close();
+    # Okay, the spreadsheet is taken care of, so give the user a link.
+    $r->print('<br /><br />'.
+              '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
+    return 1;
+}
+
+sub create_excel_spreadsheet {
+    my ($sheet,$r) = @_;
     my $filename = '/prtspool/'.
         $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
         time.'_'.rand(1000000000).'.xls';
-    &Apache::lonnet::logthis("spreadsheet:filename = ".$filename);
+    #&Apache::lonnet::logthis("spreadsheet:filename = ".$filename);
     my $workbook  = Spreadsheet::WriteExcel->new('/home/httpd'.$filename);
     if (! defined($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 0;
+        return undef;
     }
     #
     # The spreadsheet stores temporary data in files, then put them
@@ -1416,15 +1499,12 @@ sub outsheet_excel {
     $workbook->set_tempdir('/home/httpd/perl/tmp');
     #
     # Determine the name to give the worksheet
-    my $sheetname;
-    if ($sheet->{'sheettype'} eq 'classcalc') {
-        $sheetname = 'Main';
-    } elsif ($sheet->{'sheettype'} eq 'studentcalc') {
-        $sheetname = $sheet->{'uname'}.'@'.$sheet->{'udom'};
-    } elsif ($sheet->{'sheettype'} eq 'assesscalc') {
-        $sheetname = $sheet->{'uname'}.'@'.$sheet->{'udom'}.' assessment';
-    }
-    my $worksheet = $workbook->addworksheet($sheetname);
+    return ($workbook,$filename);
+}
+
+sub export_sheet_as_excel {
+    my $sheet = shift;
+    my $worksheet = shift;
     ####################################
     # Prepare to output rows
     ####################################
@@ -1446,18 +1526,22 @@ sub outsheet_excel {
         }
         $rows_output++;
     }
-    #
-    $workbook->close();
-    # Okay, the spreadsheet is taken care of, so give the user a link.
-    $r->print('<br /><br />'.
-              '<a href="'.$filename.'">Your Excel spreadsheet.</a>'."\n");
-    return 1;
+    return;
 }
 
+############################################
+##          XML output routines           ##
+############################################
 sub outsheet_xml   {
     my ($sheet,$r) = @_;
+    ## Someday XML
+    ## Will be rendered for the user
+    ## But not on this day
 }
 
+##
+## Outsheet - calls other outsheet_* functions
+##
 sub outsheet {
     my ($r,$sheet)=@_;
     if (! exists($ENV{'form.output'})) {
@@ -1467,6 +1551,8 @@ sub outsheet {
         &outsheet_csv($sheet,$r);
     } elsif (lc($ENV{'form.output'}) eq 'excel') {
         &outsheet_excel($sheet,$r);
+    } elsif (lc($ENV{'form.output'}) eq 'recursive excel') {
+        &outsheet_recursive_excel($sheet,$r);
 #    } elsif (lc($ENV{'form.output'}) eq 'xml' ) {
 #        &outsheet_xml($sheet,$r);
     } else {
@@ -2074,7 +2160,7 @@ sub updatestudentassesssheet {
 
 # ------------------------------------------------ Load data for one assessment
 
-sub loadstudent {
+sub loadstudent{
     my ($sheet)=@_;
     my %c=();
     my %f=&getformulas($sheet);
@@ -2126,8 +2212,10 @@ sub loadstudent {
 #
 sub loadcourse {
     my ($sheet,$r)=@_;
+    #
     my %c=();
     my %f=&getformulas($sheet);
+    #
     my $total=0;
     foreach (keys(%f)) {
 	if ($_=~/^A(\d+)/) {
@@ -2450,7 +2538,7 @@ sub exportsheet {
     }
     #
     # Not cached
-    #        
+    #
     my ($newsheet)=&makenewsheet($uname,$udom,$stype,$usymb);
     &readsheet($newsheet,$fn);
     &updatesheet($newsheet);
@@ -2579,10 +2667,14 @@ sub cachedssheets {
 sub handler {
     my $r=shift;
 
+    my ($sheettype) = ($r->uri=~/\/(\w+)$/);
+
     if (! exists($ENV{'form.Status'})) {
         $ENV{'form.Status'} = 'Active';
     }
-    if (! exists($ENV{'form.output'})) {
+    if ( ! exists($ENV{'form.output'}) || 
+             ($sheettype ne 'classcalc' && 
+              lc($ENV{'form.output'}) eq 'recursive excel')) {
         $ENV{'form.output'} = 'HTML';
     }
     # Check this server
@@ -2688,8 +2780,7 @@ ENDSCRIPT
         undef %updatedata;
     }
     # Read new sheet or modified worksheet
-    $r->uri=~/\/(\w+)$/;
-    my ($sheet)=&makenewsheet($aname,$adom,$1,$ENV{'form.usymb'});
+    my ($sheet)=&makenewsheet($aname,$adom,$sheettype,$ENV{'form.usymb'});
     #
     # If a new formula had been entered, go from work copy
     if ($ENV{'form.unewfield'}) {
@@ -2840,13 +2931,20 @@ ENDSCRIPT
     # CSV format checkbox (classcalc sheets only)
     $r->print(' Output as <select name="output" size="1" onClick="submit()">'.
               "\n");
-    foreach my $mode (qw/HTML CSV EXCEL/) {
+    foreach my $mode (qw/HTML CSV Excel/) {
         $r->print('<option value="'.$mode.'"');
         if ($ENV{'form.output'} eq $mode) {
             $r->print(' selected ');
         } 
         $r->print('>'.$mode.'</option>'."\n");
     }
+    if ($sheet->{'sheettype'} eq 'classcalc') {
+        $r->print('<option value="recursive excel"');
+        if ($ENV{'form.output'} eq 'recursive excel') {
+            $r->print(' selected ');
+        } 
+        $r->print(">Multi-Sheet Excel</option>\n");
+    }
     $r->print("</select>\n");
     #
     if ($sheet->{'sheettype'} eq 'classcalc') {