public function addFilter(&$query, $id, $active, $email, $date, $date_symbol)
{
if ($id !== NULL) {
$query .= " AND id = '" . DataHandler::forceInt($id) . "'";
}
if ($active !== NULL) {
$query .= " AND `active` = '" . DataHandler::forceInt($active) . "'";
}
if ($email !== NULL) {
$query .= " AND `email` = '" . DataHandler::forceString($email) . "'";
}
if ($date !== NULL) {
$date_symbol = parent::compareSimble($date_symbol);
$date = parent::dateHandlerScape(DataHandler::convertDateToDB($date));
$query .= " AND `date` {$date_symbol} {$date} ";
}
}