--- loncom/interface/spreadsheet/assesscalc.pm	2005/05/15 02:40:26	1.44
+++ loncom/interface/spreadsheet/assesscalc.pm	2007/01/23 01:36:26	1.58
@@ -1,5 +1,5 @@
 #
-# $Id: assesscalc.pm,v 1.44 2005/05/15 02:40:26 albertel Exp $
+# $Id: assesscalc.pm,v 1.58 2007/01/23 01:36:26 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -174,7 +174,7 @@ sub initialize {
 ########################################################
 ########################################################
 sub initialize_package {
-    my ($sname,$sdomain,$in_navmap) = @_;
+    my ($sname,$sdomain,$in_navmap,$calling_sheet) = @_;
     $current_name   = $sname;
     $current_domain = $sdomain;
     $navmap = $in_navmap;
@@ -185,7 +185,7 @@ sub initialize_package {
         undef(%courseopt);
     }
     &load_cached_export_rows();
-    &load_parameter_caches();
+    &load_parameter_caches($calling_sheet);
     &Apache::loncoursedata::clear_internal_caches();
 }
 
@@ -202,6 +202,7 @@ sub initialize_package {
 ########################################################
 ########################################################
 sub load_parameter_caches {
+    my ($calling_sheet) = @_;
     my $userprefix = $current_name.':'.$current_domain.'_';
     $userprefix =~ s/:/_/g;
     #
@@ -234,6 +235,10 @@ sub load_parameter_caches {
     if (! %userdata) {
         %userdata = &Apache::loncoursedata::get_current_state($current_name,
                                                               $current_domain);
+	my ($tmp) = %userdata;
+	if ($tmp =~ /^error:(.*)/) {
+	    $calling_sheet->set_calcerror($1);
+	}
         $userdata{'loadtime'} = time;
     }
     return;
@@ -272,7 +277,7 @@ sub ensure_current_caches {
         undef(%useropt);
         undef(%userdata);
     }
-    &load_parameter_caches();
+    &load_parameter_caches($self);
 }
 
 ##################################################
@@ -290,7 +295,8 @@ Returns: The value of a parameter, or ''
 
 This function cascades through the possible levels searching for a value for
 a parameter.  The levels are checked in the following order:
-user, course (at section level and course level), map, and lonnet::metadata.
+user, course (at group, section level and course level), map, and 
+lonnet::metadata.
 This function uses %parmhash, which must be tied prior to calling it.
 This function also requires %courseopt and %useropt to be initialized for
 this user and course.
@@ -301,17 +307,19 @@ this user and course.
 ##################################################
 sub parmval {
     my $self = shift;
-    my ($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));
-    $symb  = $self->{'symb'}    if (! defined($symb));
+    my ($what,$symb,$uname,$udom,$csec,$recurse,$mapname,$id,$fn,$groups)=@_;
+    $uname  = $self->{'name'}     if (! defined($uname));
+    $udom   = $self->{'domain'}   if (! defined($udom));
+    $csec   = $self->{'section'}  if (! defined($csec));
+    $groups = $self->{'groups'}   if (! defined($groups)); 
+    $symb   = $self->{'symb'}     if (! defined($symb));
     #
     my $result='';
     #
     # This should be a 
     if (!defined($mapname) || !defined($id) || !defined($fn)) {
 	($mapname,$id,$fn)=&Apache::lonnet::decode_symb($symb);
+	$mapname = &Apache::lonnet::deversion($mapname);
     }
     # Cascading lookup scheme
     my $rwhat=$what;
@@ -334,12 +342,23 @@ sub parmval {
     my $ucourselevel  = $usercourseprefix.'.'.$what;
     my $ucourselevelr = $usercourseprefix.'.'.$symbparm;
     my $ucourselevelm = $usercourseprefix.'.'.$mapparm;
-   # check user
+    # check user
     if (defined($uname)) {
         return $useropt{$ucourselevelr} if (defined($useropt{$ucourselevelr}));
         return $useropt{$ucourselevelm} if (defined($useropt{$ucourselevelm}));
         return $useropt{$ucourselevel}  if (defined($useropt{$ucourselevel}));
     }
+    # check groups
+    if (defined($groups) && ref($groups) eq 'ARRAY') {
+        foreach my $group (@{$groups}) {
+            foreach my $level ($symbparm,$mapparm,$what) {
+                my $item = $courseprefix.'.['.$group.'].'.$level;
+                if (defined($courseopt{$item})) {
+                    return $courseopt{$item};
+                }
+            }
+        }
+    }
     # check section
     if (defined($csec)) {
         return $courseopt{$seclevelr} if (defined($courseopt{$seclevelr}));
@@ -370,7 +389,7 @@ sub parmval {
 	my $newwhat=$rwhat;
 	$newwhat=~s/\Q$space\E/$part/;
 	my $partgeneral=$self->parmval($newwhat,$symb,$uname,$udom,$csec,1,
-				       $mapname,$id,$fn);
+				       $mapname,$id,$fn,$groups);
 	if (defined($partgeneral)) { return $partgeneral; }
     }
     if ($recurse) { return undef; }
@@ -515,8 +534,8 @@ sub assess_html_row {
     my @rowdata = $self->get_row($row);
     my $num_cols_output = 0;
     my $row_html;
-    if (exists($nice_parameter_name{$parameter_name})) {
-        my $name = $nice_parameter_name{$parameter_name};
+    my $name=$self->get_parm_name($parameter_name);
+    if ($name ne '') {
         $name =~ s/ /\ /g;
         $row_html .= '<td>'.$name.'<br />'.$parameter_name.'</td>';
     } else {
@@ -528,7 +547,7 @@ sub assess_html_row {
             $row_html .= &Apache::Spreadsheet::html_uneditable_cell($cell,
                                                                     '#FFDDDD');
         } else {
-            $row_html .= '<td bgcolor="#EOFFDD">';
+            $row_html .= '<td bgcolor="#E0FFDD">';
             $row_html .= &Apache::Spreadsheet::html_editable_cell($cell,
                                                                   '#E0FFDD',1);
         }
@@ -551,10 +570,7 @@ sub csv_rows {
     # Write each row
     foreach my $rownum (sort {$a <=> $b} ($self->rows())) {
         my $parameter_name = $self->{'formulas'}->{'A'.$rownum};
-        my $description = '';
-        if (exists($nice_parameter_name{$parameter_name})) {
-            $description = $nice_parameter_name{$parameter_name};
-        }
+        my $description = $self->get_parm_name($parameter_name);
         $self->csv_output_row($filehandle,$rownum,
                               $parameter_name,$description);
     }
@@ -578,10 +594,7 @@ sub excel_rows {
     # Write each row
     foreach my $rownum (sort {$a <=> $b} ($self->rows())) {
         my $parameter_name = $self->{'formulas'}->{'A'.$rownum};
-        my $description = '';
-        if (exists($nice_parameter_name{$parameter_name})) {
-            $description = $nice_parameter_name{$parameter_name};
-        }
+        my $description = $self->get_parm_name($parameter_name);
         $self->excel_output_row($worksheet,$rownum,$rows_output++,
                                 $parameter_name,$description);
     }
@@ -591,10 +604,10 @@ sub excel_rows {
 ##
 ## Routines to support assesscalc::compute
 ##
-sub get_parm_names {
+sub get_parm {
     my $self = shift;
     my @Mandatory_parameters = @_;
-    my %parameters_and_names;
+    my %parameters;
     #
     my ($symap,$syid,$srcf) = &Apache::lonnet::decode_symb($self->{'symb'});
     my @Metadata = split(/\,/,&Apache::lonnet::metadata($srcf,'keys'));
@@ -603,14 +616,20 @@ sub get_parm_names {
         my $cleaned_name = $parm;
         $cleaned_name =~ s/^resource\./stores_/;
         $cleaned_name =~ s/\./_/g;
-        my $display = &Apache::lonnet::metadata($srcf,
-                                                $cleaned_name.'.display');
-        if (! $display) {
-            $display .= &Apache::lonnet::metadata($srcf,$cleaned_name.'.name');
-        }
-        $parameters_and_names{$cleaned_name}=$display;
+        $parameters{$cleaned_name}=1;
+    }
+    return (keys(%parameters));
+}
+
+sub get_parm_name {
+    my $self = shift;
+    my $parm = shift;
+    my ($symap,$syid,$srcf) = &Apache::lonnet::decode_symb($self->{'symb'});
+    my $display = &Apache::lonnet::metadata($srcf,$parm.'.display');
+    if (! $display) {
+	$display .= &Apache::lonnet::metadata($srcf,$parm.'.name');
     }
-    return (%parameters_and_names);
+    return $display;
 }
 
 sub get_parameter_values {
@@ -631,8 +650,12 @@ sub get_parameter_values {
     if (tie(%parmhash,'GDBM_File',
             $self->{'coursefilename'}.'_parms.db',&GDBM_READER(),0640)) {
 	my ($mapname,$id,$fn)=&Apache::lonnet::decode_symb($self->{'symb'});
+	$mapname = &Apache::lonnet::deversion($mapname);
         foreach my $parmname (@Parameters) {
-            my $value = $self->parmval($parmname,$self->{'name'},$self->{'domain'},$self->{'section'},$self->{'symb'},undef,$mapname,$id,$fn);
+            my $value = $self->parmval($parmname,$self->{'symb'},
+				       $self->{'name'},$self->{'domain'},
+				       $self->{'section'},undef,
+				       $mapname,$id,$fn,$self->{'groups'});
             $parameters{$parmname} =$value;
         }
         untie(%parmhash);
@@ -700,15 +723,17 @@ sub parameter_part_is_valid {
         return 1;
     }
     #
-    my (undef,$part) = 
-        ($parameter =~ m/^(resource|stores|parameter)_([^_]+)_.*/);
-    if (exists($self->{'Parts'})          && 
-        exists($self->{'Parts'}->{$part}) &&
-        $self->{'Parts'}->{$part} ) {
-        return 1;
-    } else {
-        return 0;
+    my ($start,@pieces)=split('_',$parameter);
+    if ( $start !~ m/^(resource|stores|parameter)$/) { return 0; }
+    while (@pieces) {
+        pop(@pieces);
+        my $testpart=join('_',@pieces);
+	if (exists($self->{'Parts'}->{$testpart}) &&
+	    $self->{'Parts'}->{$testpart} ) {
+	    return 1;
+	}
     }
+    return 0;
 }
 
 sub compute {
@@ -734,15 +759,11 @@ sub compute {
     my %parameters;   # holds underscored parameters by name
     #
     # Get the metadata fields and determine their proper names
-    my %nice_parm_names = $self->get_parm_names(@Mandatory_parameters);
-    while (my($cleaned_name,$display) = each(%nice_parm_names)) {
-        $parameters{$cleaned_name}++;
-        $nice_parameter_name{$cleaned_name} = $display;
-    }
+    my @parameters=$self->get_parm(@Mandatory_parameters);
     #
     # Get the values of the metadata fields
     $self->ensure_current_caches();
-    %parameters = $self->get_parameter_values(keys(%parameters));
+    %parameters = $self->get_parameter_values(@parameters);
     #
     # Clean out unnecessary parameters
     foreach (keys(%parameters)) {
@@ -790,6 +811,12 @@ sub compute {
         $value = 'q{'.$value.'}' if ($value =~/([^\d\.]|\.\.)/);
         $c{$parm} = $value;
     }
+    foreach my $cell (grep(/^A/,keys(%f))) {
+        # Clean out any bad formulas
+	next if (exists($c{$f{$cell}}));
+	next if ($cell eq 'A0');
+	delete($f{$cell});
+    }
     $self->formulas(\%f);
     $self->constants(\%c);
     $self->calcsheet();
@@ -825,7 +852,7 @@ sub sett {
             # Replace 'A0' with the value from 'A0'
             $t{$cell}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
             # Replace parameters
-            $t{$cell}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/ge;
+            $t{$cell}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/sge;
         }
     }
     #
@@ -833,7 +860,10 @@ sub sett {
     while (my ($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});
             }
@@ -841,7 +871,7 @@ sub sett {
             $t{$cell}=$formula;
             $t{$cell}=~s/\.\.+/\,/g;
             $t{$cell}=~s/(^|[^\"\'])([A-Za-z]\d+)/$1\$sheet_values\{\'$2\'\}/g;
-            $t{$cell}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/ge;
+            $t{$cell}=~s/(^|[^\"\'])\[([^\]]+)\]/$1.$self->expandnamed($2)/sge;
         }
     }
     # Put %t into the safe space