field industry => { required   => 0,
                    min_length => 1,
                    max_length => 255,
                    validation => sub { _validate_industry( @_ ) },
                    label => 'Industry',
                  };


$form = MyApp::Form::Customer->new(
    params => { industry => [ $query->param('industry') ] } );                            

##</code><code>##

sub _validate_keywords
{
	my ($self, $this, $params) = @_;

	if ( $params->{ keywords } eq '-' && $params->{ industry } eq '-' )
	{
		$self->error($this, "You must enter some keywords or choose an industry.");
	}

	return 1;
}

sub _validate_industry
{
	my ($self, $this, $params) = @_;

	if ( $params->{ keywords } eq '-' && $params->{ industry } eq '-' )
	{
		$self->error($this, "You must enter some keywords or choose an industry.");
	}

	return 1;
}

$form = MyApp::Form::Customer->new( params => { industry     => $query->param('industry')   || '-',
	                                        keywords     => $query->param('keywords')   || '-',