private function getIgnore(&$parameters) {
        $lastParam = end($parameters);
        $lastParam = array_map('trim', explode('=', $lastParam));

        // An ignore_id is only specified if the last param starts with a
        // number greater than 1 (a valid id in the database)
        if (!preg_match('/^[1-9][0-9]*$/', $lastParam[0])) {
            return array(null, null);
        }

        $ignoreId = $lastParam[0];
        $ignoreColumn = (sizeof($lastParam) > 1) ? end($lastParam) : null;

        // Shave of the ignore_id from the array for later processing
        array_pop($parameters);

        return array($ignoreId, $ignoreColumn);
    }