yiiapp/components/models/LoginForm.php 用户登录表单数据

<?php

/**
 * LoginForm class.
 * LoginForm is the data structure for keeping
 * user login form data. It is used by the 'login' action of 'SiteController'.
 * LoginForm的类。
 * LoginForm的是保持数据结构等为
 * 用户登录表单数据。它被用于“登录”行动'SiteController'。
 */
class LoginForm extends CFormModel
{
	public $username;
	public $password;
	public $rememberMe;

	private $_identity;

	/**
	 * Declares the validation rules.
	 * The rules state that username and password are required,
	 * and password needs to be authenticated.
	 * 声明验证规则。
	 * 规则状态，需要用户名和密码，
	 * 和密码进行身份验证。
	 */
	public function rules()
	{
		return array(
			// username and password are required username 和password需要必填
			array('username, password', 'required'),
			// rememberMe needs to be a boolean rememberMe需要一个布尔值
			array('rememberMe', 'boolean'),
			// password needs to be authenticated  需要验证密码
			array('password', 'authenticate'),  //密码验证函数在下面authenticate
		);
	}

	/**
	 * Declares attribute labels.
	 * 声明属性标签。
	 */
	public function attributeLabels()
	{
		return array(
			'rememberMe'=>'Remember me next time',
		);
	}

	/**
	 * Authenticates the password.
	 * This is the 'authenticate' validator as declared in rules().
	 * *验证密码。
     * 这是'验证'的验证，宣布规则（）。
     * 这里是操作系统的系统 密码和用户名是写死了的
	 */
	public function authenticate($attribute,$params)
	{
		if(!$this->hasErrors())
		{
			$this->_identity=new UserIdentity($this->username,$this->password);
			if(!$this->_identity->authenticate())
				$this->addError('password','Incorrect username or password. 用户名或密码错误。');
		}
	}

	/**
	 * Logs in the user using the given username and password in the model.
	 * @return boolean whether login is successful
	 * *记录在用户模型中使用给定的用户名和密码。
     * @返回布尔值是否登录成功
	 */
	public function login()
	{
		//echo "username:".$this->username."<BR>";
		//echo "password:".$this->password."<BR>";
		//die();
		if($this->_identity===null)
		{			
			$this->_identity=new UserIdentity($this->username,$this->password);
			$result = $this->_identity->authenticate();
			//var_dump($result);			
		}
		
		//正确
		///echo UserIdentity::ERROR_NONE;		
		if($this->_identity->errorCode===UserIdentity::ERROR_NONE)
		{
			$duration=$this->rememberMe ? 3600*24*30 : 0; // 30 days
			Yii::app()->user->login($this->_identity,$duration);
			return true;
		}
		else
			return false;
	}
}