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YII 数据库,模型，登录验证

2015-08-03 17:49 603 查看

//protected/config/main.php
//数据库连接设置
'db'=>array(
'connectionString' => 'mysql:host=localhost;dbname=blog',
'emulatePrepare' => true,//PDO扩展
'username' => 'root',
'password' => 'xxxxxx',
'charset' => 'utf8',
'tablePrefix' => 'hd_', //定义表前缀,
'enableParamLogging' => TRUE //开启调试信息的SQL语句具体值信息
),

这些属性可以到 framework/db/CDbConnection.php中查看

IndexController.php

<?php
class IndexController extends Controller{
public function actionIndex(){
$LoginForm = new LoginForm();
if(isset($_POST['LoginForm'])){
$LoginForm->attributes = $_POST['LoginForm'];
if($LoginForm->validate() && $LoginForm->login()){
exit('登陆成功，往下执行。。。。。');
}
}
$this->render('index',array('LoginForm'=>$LoginForm));
}
/*
* 数据库 测试
*/
public function actionTest(){
$userInfo = Admin::model()->find('username = :name',array(':name'=>'admin'));
dump($userInfo->password);
}
/*
* 验证码
* index.php?r=admin/index/captcha  通过URL可以直接访问到图片
*/
public function actions(){
return array(
'captcha'=>array(
'class'=>'system.web.widgets.captcha.CCaptchaAction',
'height' => 25,
'width' => 80,
'minLength' => 4,
'maxLength' => 4
)
);
}
}

模板

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>后台首页</title>
</head>

<body>
<h1><center>后台首页</center></h1>
<?php $form = $this->beginWidget('CActiveForm') ?>
用户名：<?php echo $form->textField($LoginForm,'username',array('id'=>'username')); ?><br/>
密　码：<?php echo $form->passwordField($LoginForm,'password',array('id'=>'password')); ?><br/>
验证码：<?php echo $form->textField($LoginForm,'captcha',array('id'=>'verify')); ?>
<?php $this->widget('CCaptcha',array('showRefreshButton'=>false,'clickableImage'=>true,'imageOptions'=>array('alt'=>'点击换图','title'=>'点击换图','style'=>'cursor:pointer'))); ?>
<br/>
<input type="submit" value="登录"/>
<?php $this->endWidget() ?>
<div id="error">
<h4><center> <?php echo $form->error($LoginForm,'username') ?> </center></h4>
<h4><center> <?php echo $form->error($LoginForm,'password') ?> </center></h4>
<h4><center> <?php echo $form->error($LoginForm,'captcha') ?> </center></h4>
</div>
</body>
</html>

LoginForm.php

<?php

/**
* LoginForm class.
* LoginForm is the data structure for keeping
* user login form data. It is used by the 'login' action of 'SiteController'.
*/
class LoginForm extends CFormModel
{
public $username;
public $password;
public $rememberMe;
public $captcha;

private $_identity;

/**
* Declares the validation rules.
* The rules state that username and password are required,
* and password needs to be authenticated.
*/
public function rules()
{
return array(
// username and password are required
array('username','required','message'=>'用户名不能为空'),
array('password','required','message'=>'密码不能为空'),
// rememberMe needs to be a boolean
array('rememberMe', 'boolean'),
// password needs to be authenticated
array('password', 'authenticate'),
array('captcha','captcha','message'=>'验证码错误')
);
}

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

/**
* Authenticates the password.
* This is the 'authenticate' validator as declared in rules().
*/
public function authenticate($attribute,$params)
{
if(!$this->hasErrors())
{
$this->_identity=new UserIdentity($this->username,$this->password);
if(!$this->_identity->authenticate())
$this->addError('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
*/
public function login()
{
if($this->_identity===null)
{
$this->_identity=new UserIdentity($this->username,$this->password);
$this->_identity->authenticate();
}
if($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;
}
}

Admin.php

class Admin extends CActiveRecord{
public static function model($className = __CLASS__){
return parent::model($className);
}
public function tableName(){
return "{{admin}}";
}
}

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