--- loncom/interface/spreadsheet/assesscalc.pm	2005/05/13 21:14:46	1.40
+++ loncom/interface/spreadsheet/assesscalc.pm	2005/05/15 02:49:40	1.46
@@ -1,5 +1,5 @@
 #
-# $Id: assesscalc.pm,v 1.40 2005/05/13 21:14:46 albertel Exp $
+# $Id: assesscalc.pm,v 1.46 2005/05/15 02:49:40 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -301,7 +301,7 @@ this user and course.
 ##################################################
 sub parmval {
     my $self = shift;
-    my ($what,$symb,$uname,$udom,$csec,$recurse)=@_;
+    my ($what,$symb,$uname,$udom,$csec,$recurse,$mapname,$id,$fn)=@_;
     $uname = $self->{'name'}    if (! defined($uname));
     $udom  = $self->{'domain'}  if (! defined($udom));
     $csec  = $self->{'section'} if (! defined($csec));
@@ -310,7 +310,9 @@ sub parmval {
     my $result='';
     #
     # This should be a 
-    my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);
+    if (!defined($mapname) || !defined($id) || !defined($fn)) {
+	($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);
+    }
     # Cascading lookup scheme
     my $rwhat=$what;
     $what =~ s/^parameter\_//;
@@ -367,7 +369,8 @@ sub parmval {
 	if ($part eq '') { $part='0'; }
 	my $newwhat=$rwhat;
 	$newwhat=~s/\Q$space\E/$part/;
-	my $partgeneral=$self->parmval($newwhat,$symb,$uname,$udom,$csec,1);
+	my $partgeneral=$self->parmval($newwhat,$symb,$uname,$udom,$csec,1,
+				       $mapname,$id,$fn);
 	if (defined($partgeneral)) { return $partgeneral; }
     }
     if ($recurse) { return undef; }
@@ -627,8 +630,11 @@ sub get_parameter_values {
     my $filename = $self->{'coursefilename'}.'_parms.db';
     if (tie(%parmhash,'GDBM_File',
             $self->{'coursefilename'}.'_parms.db',&GDBM_READER(),0640)) {
+	my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($self->{'symb'});
         foreach my $parmname (@Parameters) {
-            my $value = $self->parmval($parmname);
+            my $value = $self->parmval($parmname,$self->{'name'},
+				       $self->{'domain'},$self->{'section'},
+				       $self->{'symb'},undef,$mapname,$id,$fn);
             $parameters{$parmname} =$value;
         }
         untie(%parmhash);
@@ -661,6 +667,7 @@ sub get_problem_state {
 
 sub determine_parts {
     my $self = shift;
+    my $check_hidden = shift;
     if (exists($self->{'Parts'}) && ref($self->{'Parts'}) eq 'HASH') {
         return;
     }
@@ -671,9 +678,10 @@ sub determine_parts {
     my $metadata = &Apache::lonnet::metadata($src,'packages');
     foreach (split(',',$metadata)) {
         my ($part) = (/^part_(.*)$/);
-        if (defined($part) && 
-            ! &Apache::loncommon::check_if_partid_hidden
-                ($part,$self->{'symb'},$self->{'name'},$self->{'domain'})
+        if (!defined($part)) { next; }
+        if (!$check_hidden) { $Parts{$part}++; next; }
+        if (!&Apache::loncommon::check_if_partid_hidden
+	    ($part,$self->{'symb'},$self->{'name'},$self->{'domain'})
             ) {
             $Parts{$part}++;
         }
@@ -708,8 +716,6 @@ sub parameter_part_is_valid {
 sub compute {
     my $self = shift;
     my ($r) = @_;
-    my $connection = $r->connection();
-    if ($connection->aborted()) { $self->cleanup(); return; }
     $self->initialize_safe_space();
     #########################################
     #########################################
@@ -737,11 +743,8 @@ sub compute {
     }
     #
     # Get the values of the metadata fields
-    if ($connection->aborted()) { $self->cleanup(); return; }
     $self->ensure_current_caches();
-    if ($connection->aborted()) { $self->cleanup(); return; }
     %parameters = $self->get_parameter_values(keys(%parameters));
-    if ($connection->aborted()) { $self->cleanup(); return; }
     #
     # Clean out unnecessary parameters
     foreach (keys(%parameters)) {
@@ -749,19 +752,14 @@ sub compute {
     }
     #
     # Get the students performance data
+    $self->determine_parts(($parameters{'parameter_0_hiddenparts'} ne ''));
     my %student_parameters = $self->get_problem_state();
     while (my ($parm,$value) = each(%student_parameters)) {
         $parm =~ s/^resource\./stores_/;
         $parm =~ s/\./_/g;
-        $parameters{$parm} = $value;
-    }
-    #
-    # Clean out any bad parameters
-    $self->determine_parts();
-    foreach my $param (keys(%parameters)) {
-        if (! $self->parameter_part_is_valid($param)) {
-            delete ($parameters{$param});
-        }
+	# Clean out any bad parameters
+	next if (! $self->parameter_part_is_valid($parm));
+	$parameters{$parm} = $value;
     }
     #
     # Set up the formulas and parameter values
@@ -783,7 +781,6 @@ sub compute {
             }
         }
     }
-    if ($connection->aborted()) { $self->cleanup(); return; }
     #
     # Move the parameters into the spreadsheet
     while (my ($parm,$value) = each(%parameters)) {
@@ -797,14 +794,12 @@ sub compute {
     }
     $self->formulas(\%f);
     $self->constants(\%c);
-    if ($connection->aborted()) { $self->cleanup(); return; }
     $self->calcsheet();
     #
     # Store export row in cache
     my @exportarray = $self->exportrow();
     $self->deal_with_export_row(@exportarray);
     $self->save() if ($self->need_to_save());
-    if ($connection->aborted()) { $self->cleanup(); return; }
     return;
 }
 
@@ -840,7 +835,10 @@ sub sett {
     while (my ($cell,$formula) = each(%{$self->{'formulas'}})) {
 	next if ($cell =~ /template_/);
         if ($cell =~ /^A/ && $cell ne 'A0') {
-            if ($formula !~ /^\!/) {
+	    if ($formula !~ /^\!/ 
+		&& exists($self->{'constants'}->{$formula}) 
+		&& $self->{'constants'}->{$formula} ne ''
+		) {
 		$Apache::Spreadsheet::sheet_values{$cell}=
 		    eval($self->{'constants'}->{$formula});
             }
@@ -921,7 +919,6 @@ 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})  ||
@@ -932,7 +929,6 @@ sub export_data {
         ) {
         $self->compute($r);
     }
-    if ($connection->aborted()) { $self->cleanup(); return; }
     my @Data;
     if ($self->badcalc()) {
         @Data = ();