--- loncom/homework/radiobuttonresponse.pm	2001/11/07 21:23:15	1.26
+++ loncom/homework/radiobuttonresponse.pm	2001/11/07 22:28:44	1.27
@@ -202,6 +202,7 @@ sub displayfoils {
 }
 
 sub start_conceptgroup {
+  my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   $Apache::radiobuttonresponse::conceptgroup=1;
   %Apache::response::conceptgroup={};
   my $result;
@@ -222,15 +223,17 @@ sub end_conceptgroup {
   $Apache::radiobuttonresponse::conceptgroup=0;
   my $result;
   if ($target eq 'web' || $target eq 'grade') {
-    my @names = @{ $Apache::response::conceptgroup{'names'} };
-    my $pick=int rand $#names+1;
-    my $name=$names[$pick];
-    push @{ $Apache::response::foilgroup{'names'} }, $name;
-    $Apache::response::foilgroup{"$name.text"} =  $Apache::response::conceptgroup{"$name.text"};
-    $Apache::response::foilgroup{"$name.value"} = $Apache::response::conceptgroup{"$name.value"};
-    my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
-    $Apache::response::foilgroup{"$name.concept"} = $concept;
-    &Apache::lonxml::debug("Selecting $name in $concept");
+    if (defined(@{ $Apache::response::conceptgroup{'names'} })) {
+      my @names = @{ $Apache::response::conceptgroup{'names'} };
+      my $pick=int rand $#names+1;
+      my $name=$names[$pick];
+      push @{ $Apache::response::foilgroup{'names'} }, $name;
+      $Apache::response::foilgroup{"$name.text"} =  $Apache::response::conceptgroup{"$name.text"};
+      $Apache::response::foilgroup{"$name.value"} = $Apache::response::conceptgroup{"$name.value"};
+      my $concept = &Apache::lonxml::get_param('concept',$parstack,$safeeval);
+      $Apache::response::foilgroup{"$name.concept"} = $concept;
+      &Apache::lonxml::debug("Selecting $name in $concept");
+    }
   } elsif ($target eq 'edit') {
     $result=&Apache::edit::end_table();
   }
@@ -245,8 +248,19 @@ sub insert_conceptgroup {
 sub start_foil {
   my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
   my $result='';
-  if ($target eq 'web') { &Apache::lonxml::startredirection; }
-  return '';
+  if ($target eq 'web') {
+    &Apache::lonxml::startredirection;
+  } elsif ($target eq 'edit') {
+    $result=&Apache::edit::tag_start($target,$token);
+    $result.=&Apache::edit::text_arg('Name:','name',$token);
+    $result.=&Apache::edit::select_arg('Correct Option:','value',
+				       ['true','false'],$token,'15');
+  } elsif ($target eq 'modified') {
+     my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
+						  'value','name');
+    if ($constructtag) { $result = &Apache::edit::rebuild_tag($token); }
+  }
+  return $result;
 }
 
 sub end_foil {
@@ -257,6 +271,7 @@ sub end_foil {
     my $value = &Apache::lonxml::get_param('value',$parstack,$safeeval);
     if ($value ne 'unused') {
       my $name = &Apache::lonxml::get_param('name',$parstack,$safeeval);
+      if (!$name) { $name=$Apache::lonxml::curdepth; }
       if ( $Apache::radiobuttonresponse::conceptgroup ) {
 	push @{ $Apache::response::conceptgroup{'names'} }, $name;
 	$Apache::response::conceptgroup{"$name.value"} = $value;
@@ -271,6 +286,13 @@ sub end_foil {
   return '';
 }
 
+sub insert_foil {
+  return '
+<foil name="" value="unused">
+<startouttext />
+<endouttext />
+</foil>';
+}
 1;
 __END__