/**
* Authenticates a user.
* @return boolean whether authentication succeeds.
*/
public function authenticate()
{
// 获取用户信息
$user = AdminUser::getUserInfoByName($this->username);
if ($user === false) {
$this->errorCode = self::ERROR_USERNAME_INVALID;
} elseif (!$user->validatePassword($this->password)) {
$this->errorCode = self::ERROR_PASSWORD_INVALID;
} else {
$this->user_id = $user->id;
$this->user_name = $user->username;
Yii::app()->user->setState('user_id', $this->user_id);
Yii::app()->user->setState('user_name', $this->user_name);
// 更新用户最后登陆时间
AdminUser::model()->updateByPk($user->id, array('last_time' => time(), 'last_ip' => Yii::app()->request->userHostAddress));
}
return $this->errorCode = self::ERROR_NONE;
}