--- loncom/interface/spreadsheet/assesscalc.pm	2003/05/27 20:20:25	1.10
+++ loncom/interface/spreadsheet/assesscalc.pm	2003/09/05 01:57:54	1.19
@@ -1,5 +1,5 @@
 #
-# $Id: assesscalc.pm,v 1.10 2003/05/27 20:20:25 matthew Exp $
+# $Id: assesscalc.pm,v 1.19 2003/09/05 01:57:54 matthew Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -44,6 +44,8 @@ assesscalc
 package Apache::assesscalc;
 
 use strict;
+use warnings FATAL=>'all';
+no warnings 'uninitialized';
 use Apache::Constants qw(:common :http);
 use Apache::lonnet;
 use Apache::loncommon;
@@ -123,6 +125,10 @@ sub clear_package {
     undef(%courseopt);
 }
 
+sub initialize {
+    &clear_package();
+}
+
 ########################################################
 ########################################################
 
@@ -136,10 +142,12 @@ sub clear_package {
 ########################################################
 sub initialize_package {
     my ($sname,$sdomain) = @_;
-    $current_course = $ENV{'request.course.id'};
     $current_name   = $sname;
     $current_domain = $sdomain;
-    undef(%courseopt);
+    if ($current_course ne $ENV{'request.course.id'}) {
+        $current_course = $ENV{'request.course.id'};
+        undef(%courseopt);
+    }
     &load_cached_export_rows();
     &load_parameter_caches();
 }
@@ -161,7 +169,6 @@ sub load_parameter_caches {
     #
     # Course Parameters Cache
     if (! %courseopt) {
-        &Apache::lonnet::logthis("loading course options");
         $current_course = $ENV{'request.course.id'};
         undef(%courseopt);
         if (! defined($current_name) || ! defined($current_domain)) {
@@ -201,11 +208,17 @@ sub load_parameter_caches {
 ########################################################
 sub ensure_current_parameter_caches {
     my $self = shift;
+    ##
+    ## Check for a modified parameters
+    ##
     if (! defined($current_course) || 
         $current_course ne $ENV{'request.course.id'} ) {
         $current_course = $ENV{'request.course.id'};
         undef(%courseopt); 
     }
+    ##
+    ## Check for new user
+    ##
     if (! defined($current_name)   || $current_name ne $self->{'name'} ||
         ! defined($current_domain) || $current_domain ne $self->{'domain'}) {
         $current_domain = $self->{'domain'};
@@ -241,7 +254,7 @@ this user and course.
 ##################################################
 sub parmval {
     my $self = shift;
-    my ($what,$symb,$uname,$udom,$csec)=@_;
+    my ($what,$symb,$uname,$udom,$csec,$recurse)=@_;
     $uname = $self->{'name'}    if (! defined($uname));
     $udom  = $self->{'domain'}  if (! defined($udom));
     $csec  = $self->{'section'} if (! defined($csec));
@@ -306,9 +319,12 @@ sub parmval {
 	if ($part eq '') { $part='0'; }
 	my $newwhat=$rwhat;
 	$newwhat=~s/\Q$space\E/$part/;
-	my $partgeneral=$self->parmval($newwhat,$symb,$uname,$udom,$csec);
+	my $partgeneral=$self->parmval($newwhat,$symb,$uname,$udom,$csec,1);
 	if (defined($partgeneral)) { return $partgeneral; }
     }
+    if ($recurse) { return undef; }
+    my $pack_def=&Apache::lonnet::packages_tab_default($fn,'resource.'.$what);
+    if (defined($pack_def)) { return $pack_def; }
     #nothing defined
     return '';
 }
@@ -328,11 +344,11 @@ sub get_html_title {
 sub get_title {
     my $self = shift;
     my @title = ();
-    if (($self->{'usymb'} eq '_feedback') ||
-        ($self->{'usymb'} eq '_evaluation') ||
-        ($self->{'usymb'} eq '_discussion') ||
-        ($self->{'usymb'} eq '_tutoring')) {
-        my $assess_title = ucfirst($self->{'usymb'});
+    if (($self->{'symb'} eq '_feedback') ||
+        ($self->{'symb'} eq '_evaluation') ||
+        ($self->{'symb'} eq '_discussion') ||
+        ($self->{'symb'} eq '_tutoring')) {
+        my $assess_title = ucfirst($self->{'symb'});
         $assess_title =~ s/^_//;
         push(@title,$assess_title);
     } else {
@@ -365,13 +381,15 @@ sub outsheet_html {
     ###################################
     # Determine table structure
     ###################################
+    my $importcolor = '#FFFFFF';
+    my $exportcolor = '#FFFFAA';
     my $num_uneditable = 1;
     my $num_left = 52-$num_uneditable;
     my $tableheader =<<"END";
 <table border="2">
 <tr>
   <th colspan="2" rowspan="2"><font size="+2">Assessment</font></th>
-  <td bgcolor="#FFDDDD" colspan="$num_uneditable">&nbsp;</td>
+  <td bgcolor="$importcolor" colspan="$num_uneditable">&nbsp;</td>
   <td colspan="$num_left">
       <b><font size="+1">Calculations</font></b></td>
 </tr><tr>
@@ -379,7 +397,7 @@ END
     my $label_num = 0;
     foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){
         if ($label_num<$num_uneditable) { 
-            $tableheader .= '<td bgcolor="#FFDDDD">';
+            $tableheader .= '<td bgcolor="'.$importcolor.'">';
         } else {
             $tableheader .= '<td>';
         }
@@ -392,11 +410,12 @@ END
     #
     # Print out template row
     $r->print('<tr><td>Template</td><td>&nbsp;</td>'.
-	      $self->html_template_row($num_uneditable)."</tr>\n");
+	      $self->html_template_row($num_uneditable,$importcolor).
+              "</tr>\n");
     #
     # Print out summary/export row
     $r->print('<tr><td>Export</td><td>0</td>'.
-	      $self->html_export_row()."</tr>\n");
+	      $self->html_export_row($exportcolor)."</tr>\n");
     #
     # Prepare to output rows
     $tableheader =<<"END";
@@ -405,7 +424,7 @@ END
 END
     foreach (split(//,'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz')){
 	if ($label_num<$num_uneditable) { 
-            $tableheader.='<th bgcolor="#FFDDDD">';
+            $tableheader.='<th bgcolor="'.$importcolor.'">';
         } else {
             $tableheader.='<th>';
         }
@@ -418,7 +437,7 @@ END
 	    $r->print("</table>\n".$tableheader);
 	}
 	$r->print('<tr><td>'.$rownum.'</td>'.
-                  $self->assess_html_row($rownum)."</tr>\n");
+                  $self->assess_html_row($rownum,$importcolor)."</tr>\n");
     }
     $r->print("</table>\n");
     return;
@@ -426,7 +445,7 @@ END
 
 sub assess_html_row {
     my $self = shift();
-    my ($row) = @_;
+    my ($row,$importcolor) = @_;
     my $parameter_name = $self->{'formulas'}->{'A'.$row};
     my @rowdata = $self->get_row($row);
     my $num_cols_output = 0;
@@ -440,7 +459,7 @@ sub assess_html_row {
     }
     foreach my $cell (@rowdata) {
         if ($num_cols_output < 1) {
-            $row_html .= '<td bgcolor="#FFDDDD">';
+            $row_html .= '<td bgcolor="'.$importcolor.'">';
             $row_html .= &Apache::Spreadsheet::html_uneditable_cell($cell,
                                                                     '#FFDDDD');
         } else {
@@ -505,8 +524,24 @@ sub excel_rows {
 
 sub compute {
     my $self = shift;
-    $self->logthis('computing');
+    my ($r) = @_;
+    my $connection = $r->connection();
+    if ($connection->aborted()) { $self->cleanup(); return; }
+#    $self->logthis('computing');
     $self->initialize_safe_space();
+    #########################################
+    #########################################
+    ###                                   ###
+    ###  Retrieve the problem parameters  ###
+    ###                                   ###
+    #########################################
+    #########################################
+    my @Mandatory_parameters = ("stores_0_solved",
+                                "stores_0_awarddetail",
+                                "stores_0_awarded",
+                                "timestamp",
+                                "stores_0_tries",
+                                "stores_0_award");
     #
     # Definitions
     undef(%nice_parameter_name);
@@ -515,7 +550,7 @@ sub compute {
     # Get the metadata fields and determine their proper names
     my ($symap,$syid,$srcf)=split(/___/,$self->{'symb'});
     my @Metadata = split(/\,/,&Apache::lonnet::metadata($srcf,'keys'));
-    foreach my $parm (@Metadata) {
+    foreach my $parm (@Mandatory_parameters,@Metadata) {
         next if ($parm !~ /^(resource\.|stores|parameter)_/);
         my $cleaned_name = $parm;
         $cleaned_name =~ s/^resource\./stores_/;
@@ -530,7 +565,9 @@ sub compute {
     }
     #
     # Get the values of the metadata fields
+    if ($connection->aborted()) { $self->cleanup(); return; }
     $self->ensure_current_parameter_caches();
+    if ($connection->aborted()) { $self->cleanup(); return; }
     my $filename = $self->{'coursefilename'}.'_parms.db';
     if (tie(%parmhash,'GDBM_File',
             $self->{'coursefilename'}.'_parms.db',&GDBM_READER(),0640)) {
@@ -542,6 +579,7 @@ sub compute {
     } else {
         $self->logthis('unable to tie '.$filename);
     }
+    if ($connection->aborted()) { $self->cleanup(); return; }
     #
     # Clean out unnecessary parameters
     foreach (keys(%parameters)) {
@@ -576,8 +614,10 @@ sub compute {
             }
         }
     }
+    if ($connection->aborted()) { $self->cleanup(); return; }
     #
     # Move the parameters into the spreadsheet
+    if ($connection->aborted()) { $self->cleanup(); return; }
     while (my ($parm,$value) = each(%parameters)) {
         my $cell = 'A'.$self->get_row_number_from_key($parm);
         $f{$cell} = $parm;
@@ -586,6 +626,7 @@ sub compute {
     }
     $self->formulas(\%f);
     $self->constants(\%c);
+    if ($connection->aborted()) { $self->cleanup(); return; }
     $self->calcsheet();
     #
     # Store export row in cache
@@ -595,6 +636,8 @@ sub compute {
     #
     # Save the export data
     $self->save_export_data();
+    $self->save() if ($self->need_to_save());
+    if ($connection->aborted()) { $self->cleanup(); return; }
     return;
 }
 
@@ -663,7 +706,7 @@ These rows are saved in the students dir
 ########################################################
 ########################################################
 sub load_cached_export_rows {
-    %Exportrows = undef;
+    undef(%Exportrows);
     my @tmp = &Apache::lonnet::dump('nohist_calculatedsheets_'.
                                     $ENV{'request.course.id'},
                                     $current_domain,$current_name,undef);
@@ -704,14 +747,19 @@ spreadsheet only if necessary.
 #############################################
 sub export_data {
     my $self = shift;
+    my ($r) = @_;
+    my $connection = $r->connection();
     my $symb = $self->{'symb'};
     if (! exists($ENV{'request.role.adv'}) || ! $ENV{'request.role.adv'} ||
         ! exists($Exportrows{$symb}) || ! defined($Exportrows{$symb})  ||
         ! $self->check_expiration_time($Exportrows{$symb}->{'time'}) ||
         ! exists($Exportrows{$symb}->{$self->{'filename'}}) ||
-        ! defined($Exportrows{$symb}->{$self->{'filename'}})) {
-        $self->compute();
+        ! defined($Exportrows{$symb}->{$self->{'filename'}}) ||
+        ! ref($Exportrows{$symb}->{$self->{'filename'}}) 
+        ) {
+        $self->compute($r);
     }
+    if ($connection->aborted()) { $self->cleanup(); return; }
     my @Data = @{$Exportrows{$symb}->{$self->{'filename'}}};
     if ($Data[0] =~ /^(.*)___=___/) {
         $self->{'sheetname'} = $1;