Librairy vs model vs helper best place for authentification function ?

[eluser]InsiteFX[/eluser]
You can load models in library, but for libraries you will need to the CI Super Object!

Code:

class library {

    private $CI;

    public function __construct()
    {
        $this->CI =& get_instance();

        $this->CI->load->model('model_name');
    }
}

// You will then have to use:
$this->CI  // to access models db etc!

InsiteFX