/**
* Authenticates a user.
* The example implementation makes sure if the username and password
* are both 'demo'.
* In practical applications, this should be changed to authenticate
* against some persistent user identity storage (e.g. database).
* @return boolean whether authentication succeeds.
*/
public function authenticate()
{
$username = strtolower($this->username);
$user = UserDefn::model()->find('username=?', array($username));
if ($user == null) {
$this->errorCode = self::ERROR_USERNAME_INVALID;
} else {
if ($user->validatePassword($this->password)) {
$this->errorCode = self::ERROR_NONE;
} else {
$this->errorCode = self::ERROR_PASSWORD_INVALID;
}
}
return !$this->errorCode;
}
/**
* Returns the data model based on the primary key given in the GET variable.
* If the data model is not found, an HTTP exception will be raised.
* @param integer $id the ID of the model to be loaded
* @return UserDefn the loaded model
* @throws CHttpException
*/
public function loadModel($id)
{
$model = UserDefn::model()->findByPk($id);
if ($model === null) {
throw new CHttpException(404, 'The requested page does not exist.');
}
return $model;
}