[分享] 自己做了会员注册登录，贡献出来 [ 新手入门 ]

之前找了好多资料，都是把登录和注册分开两个model来写，登录做成LoginForm，注册用 User，但是我一直想只用一个User，都表现出来，所以自己写了一个，看着还比较顺眼，而且我也没搜到相关文章。

1. 建立数据库表 user，字段：user_id email password salt nike_name last_login create
2. 用 gii 生成了叫作 User 的controller和model
3. 在userController 中 代码：

<?php
class UserController extends Controller
{
    /*public function accessRules() {
        return array('allow',  // allow all users to perform 'list' and 'show' actions
            'actions' => array('register', 'login', 'logout', 'captcha'),
            'users' => array('*'),
        );
    }*/
    
    public function actions() {
        return array(
            'captcha' => array(
                'class' => 'CCaptchaAction',
                'backColor' => 0xFFFFFF,
                'minLength' => 4,
                'maxLength' => 4,
                'testLimit' => 99999
            )
        );
    }

    /**
    * This is the default 'index' action that is invoked
    * when an action is not explicitly requested by users.
    */
    public function actionIndex()
    {
        // renders the view file 'protected/views/site/index.php'
        // using the default layout 'protected/views/layouts/main.php'
        $this->render('index');
    }

    public function actionRegister()
    {
        $model = new User('register');
        if(isset($_POST['User'])) {
            $model->attributes = $_POST['User'];
            $model->validate();
            //$model->getErrors();
            if($model->save()) {
                $this->redirect(array('user/login'));
            }
        }
        $this->render('register', array('model' => $model));
    }

	/**
	 * Displays the login page
	 */
	public function actionLogin()
	{
		$model = new User('login');

		// if it is ajax validation request
		if(isset($_POST['ajax']) && $_POST['ajax']==='login-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}

		// collect user input data
		if(isset($_POST['User']))
		{
			$model->attributes = $_POST['User'];
			// validate user input and redirect to the previous page if valid
			if($model->validate() && $model->login())
				$this->redirect(Yii::app()->user->returnUrl);
		}
		// display the login form
		$this->render('login', array('model' => $model));
	}

	/**
	 * Logs out the current user and redirect to homepage.
	 */
	public function actionLogout()
	{
		Yii::app()->user->logout();
		$this->redirect(Yii::app()->homeUrl);
	}
}[/code]4. user模型中代码 models/User.php：[code]<?php

/**
 * This is the model class for table "{{user}}".
 *
 * The followings are the available columns in table '{{user}}':
 * @property integer $user_id
 * @property string $email
 * @property string $password
 * @property string $nick_name
 * @property integer $last_login
 * @property integer $create
 */
class User extends CActiveRecord
{
        //注册
        public $passwordConfirm;
        public $verifyCode;
        //登录
        public $remember;
        
        private $_identity;
	/**
	 * Returns the static model of the specified AR class.
	 * @param string $className active record class name.
	 * @return User the static model class
	 */
	public static function model($className=__CLASS__)
	{
		return parent::model($className);
	}

	/**
	 * @return string the associated database table name
	 */
	public function tableName()
	{
		return '{{user}}';
	}

	/**
	 * @return array validation rules for model attributes.
	 */
	public function rules()
	{
		// NOTE: you should only define rules for those attributes that
		// will receive user inputs.
		return array(
			array('email, password, verifyCode', 'required'),
                        array('verifyCode', 'captcha', 'allowEmpty'=>!CCaptcha::checkRequirements()),
                        array('passwordConfirm, nick_name', 'required', 'on' => 'register'),
                        array('email, nick_name', 'unique', 'on' => 'register'),
                        array('passwordConfirm', 'compare', 'compareAttribute' => 'password', 'on' => 'register'),
			array('email', 'length', 'min' => '5', 'max' => 255, 'on' => 'register'),
			array('password', 'length', 'min' => '4', 'max' => 18, 'on' => 'register'),
                        array('remember', 'boolean', 'on' => 'login'),
                        array('password', 'authenticate', 'on' => 'login'),
			// The following rule is used by search().
			// Please remove those attributes that should not be searched.
			//array('user_id, email, password, nick_name, last_login, create', 'safe', 'on'=>'search'),
		);
	}
        
        protected function beforeSave() {
                if($this->isNewRecord) {
                        $this->salt = $this->verifyCode;
                        $this->password = md5($this->salt . $this->password);
                        $this->create = time();
                }
                
                return parent::beforeSave();
        }
        
        public function authenticate()
        {
                if(!$this->hasErrors()) {
                        $this->_identity = new UserIdentity($this->email, $this->password);
                        
                        if($this->_identity->authenticate() !== UserIdentity::ERROR_NONE) {
                                $this->addError('password', '密码错误');
                        }
                }
        }

	/**
	 * @return array relational rules.
	 */
	public function relations()
	{
		// NOTE: you may need to adjust the relation name and the related
		// class name for the relations automatically generated below.
		return array(
		);
	}

	/**
	 * @return array customized attribute labels (name=>label)
	 */
	public function attributeLabels()
	{
		return array(
			'email' => 'Email',
			'password' => '密码',
                        'passwordConfirm' => '确认密码',
			'nick_name' => '昵称',
                        'verifyCode' => '验证码'
		);
	}

	/**
	 * Retrieves a list of models based on the current search/filter conditions.
	 * @return CActiveDataProvider the data provider that can return the models based on the search/filter conditions.
	 */
	public function search()
	{
		// Warning: Please modify the following code to remove attributes that
		// should not be searched.

		$criteria = new CDbCriteria;

		$criteria->compare('user_id', $this->user_id);
		$criteria->compare('email', $this->email, true);
		$criteria->compare('nick_name', $this->nick_name, true);

		return new CActiveDataProvider($this, array(
			'criteria' => $criteria,
		));
	}
        
        public function validatePassword($password)
        {
                if($this->hasPassword($password, $this->salt) === $this->password) {
                        return true;
                }
                else {
                        return false;
                }
        }
        
        public function hasPassword($password, $salt)
        {
                return md5($salt . $password);
        }
        
        public function login()
        {
                if($this->_identity === null) {
                        $this->_identity = new UserIdentity($this->email, $this->password);
                        $this->_identity->authenticate();
                }
                
                if($this->_identity->errorCode === UserIdentity::ERROR_NONE) {
                        $duration = $this->remember ? 3600 * 24 * 30 : 0; // 30天
                        Yii::app()->user->login($this->_identity, $duration);
                        Yii::app()->user->setReturnUrl(array('/site'));
                        return true;
                } else {
                        return false;
                }
        }
}