public function __construct($user_id = '')
{
parent::__construct();
if (!empty($user_id)) {
$this->user_id = $user_id;
}
$this->CI =& get_instance();
if (!isset($this->CI->dbapi)) {
$this->CI->load->model("DBAPI", "dbapi", TRUE);
}
$this->CI->load->model("BeginnerModel", "BeginnerModel", TRUE);
}
