from('mytable')
        ->where('customLogin', '=', $username)
        ->and_where('customPassword', '=', $password)
        ->as_object()->execute()->current();
 
    if(!empty($user))
    {
        if($password == $user->customPassword)
        {
             $this->complete_login($user);
            return true;
        }
    }
    return false;
}
 
public function password($username)
{
// Return the password for the username
}
 
public function check_password($password)
{
// Check to see if the logged in user has the given password
}
 
public function logged_in($role = NULL)
{
// Check to see if the user is logged in, and if $role is set, has all roles
}
 
public function get_user($default = NULL)
{
// Get the logged in user, or return the $default if a user is not found
}
}

$success = Auth_biofinger::instance()->login($username,$password);