if ( $result_ref{'agency_id'} != 0 )
{
    my $i = 0;
    for my $k (qw/agency_id advertiser campaign_id admin_contact_id tech_contact_id)
    {
        get_updates($objects[$i++], $k, $result_ref->{$k})
             if (defined $result_ref->{$k});
    }
}