Make get_remap_fields() non-destructive

diff --git a/InternetSecure.pm b/InternetSecure.pm
index b84e15b..76ae5a2 100755 (executable)
--- a/InternetSecure.pm
+++ b/InternetSecure.pm
@@ -50,37 +50,20 @@ sub set_defaults {
        $self->tax_amounts( {} );
 }
 
-# OnlinePayment's get_fields now filters out undefs in 3.x. :(
+# Combine get_fields and remap_fields for convenience.  Unlike OnlinePayment's
+# remap_fields, this doesn't modify content(), and can therefore be called
+# more than once.  Also, unlike OnlinePayment's get_fields in 3.x, this doesn't
+# exclude undefs.
 #
-sub get_fields {
-       my ($self, @fields) = @_;
-
-       my %content = $self->content;
-
-       my %new = map +($_ => $content{$_}), @fields;
-
-       return %new;
-}
-
-# OnlinePayment's remap_fields is buggy in 2.x; this is copied from 3.x
-#
-sub remap_fields {
+sub get_remap_fields {
        my ($self, %map) = @_;
 
        my %content = $self->content();
-       foreach (keys %map) {
-               $content{$map{$_}} = delete $content{$_};
-       }
-       $self->content(%content);
-}
+       my %data;
 
-# Combine get_fields and remap_fields for convenience
-#
-sub get_remap_fields {
-       my ($self, %map) = @_;
-
-       $self->remap_fields(reverse %map);
-       my %data = $self->get_fields(keys %map);
+       while (my ($to, $from) = each %map) {
+               $data{$to} = $content{$from};
+       }
 
        return %data;
 }