Fellow Monasterians,

I'm using a validation package to determine a number of things, in this case whether a radio button in a form has been clicked on.

Fundamentally, my problem comes when passing values to the package. If param('method') has a value, there is no problem—all the values are passed in proper order. However, if 'method' has no value, the flag '1' I'm using to indicate that the selection of a 'method' is mandatory is moved the to $value position in my package and a true value is erroneously returned.

If use quotes: "$query->param('method')" the $value in the package is CGI=HASH(0x811b24c)->param('method') and basically get no measurable result.

So, how do I make sure that the package "sees" the undefined value? The stop-gap would be to reverse the order Validate->checked (1, $query->param('method')), but that doesn't seem like a long-term solution.

Thanks!

use Validate;
my ($method, $error) = Validate->checked ($query->param('method'), 1);
if ( $error->{ msg } ) { push @errors, "A <b>method</b> $error->{ msg 
+}" }
        
        
package Validate;
sub checked {
   my ($class, $value, $mandatory) = @_;
    print Dumper ($class, $value, $mandatory);
   if (!$value && $mandatory) {
      return (undef, { msg => 'must be checked' });
   } else {
      return ($value);
   }
}
1;

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—Brad
"The important work of moving the world forward does not wait to be done by perfect men." George Eliot

In reply to Passing undefined values to package by bradcathey

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