public function attempt($username, $password)
{
$result = \Core\Storage::container()->get_storage($this->_table)->fetch(array('filter' => new \Core\Filter($this->_user_field, $username)))->{0};
if (!$result) {
throw new InvalidUserError();
}
try {
$hasher = Hasher::create()->check($password, $result[$this->_password_field]);
$this->_set_session($result['id'], $result);
} catch (HashMismatch $e) {
throw new IncorrectPasswordError();
}
}
