--On Dienstag, 20. November 2001 23:13 -0500 "Scott R. Godin"
<[EMAIL PROTECTED]> wrote:
> well if you do it as $in, it passes a reference. if you do it as %in, it
> passes the hash. I tend to find the referenced value more
> straightforward to work with when using the object-oriented CGI.pm
> interface, it being similar.
>
Ok, I admit I'm not used to work with references; using your advice I now
came up with the following code:
my $q = new CGI;
my $in = $q->Vars;
my %hash;
foreach my $key (keys %{$in}) {
next if ($in->{$key} eq "---");
next if (!$in->{$key});
$hash{$key} = $in->{$key};
$hash{$key} =~ s/---//g;# necessary if there's an unselected select field
*and* a text input field with the same name
$hash{$key} =~ s/^\0//;# necessary if there are two fields with same name
and the first one is empty
$hash{$key} =~ s/(\0)$//; # ... when the second one is empty
$hash{$key} =~ s/\0/~~/g;
}
It achieves what I want, taking care of multiple selects, empty values
*and* two fields with the same name.
Can it still be further simplified?
It would be advisable to have some error-checking, when users choose *both*
a value from a dropdown list *and* type input into the text field with the
same name. But I guess that can't be done without knowing the field name;
perhaps pass a hidden name/value-pair with "double" as name and the double
field name as value, and if the hash value of that field name contains
"~~", return an error message.
Anyway, many thanks for the advice,
Birgit Kellner
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