public function get_others()
    {
        $index = $this->getIndex();
        $value = $this->getFieldValue($index);
        if (is_string($value) && strlen($value) > 0) {
            return $this->build($this->db->select('SELECT * FROM `' . $this->table_name . '` WHERE `' . $index . '` != ?', array((string)$value), $this->getCacheId("not_" . $value)));
        }
        return $this->get_all();
    }