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這篇文章給大家分享的是有關Yii框架如何實現驗證碼、登錄及退出功能的內容。小編覺得挺實用的,因此分享給大家做個參考,一起跟隨小編過來看看吧。
具體如下:
Model
<?php class Auth extends CActiveRecord { public static function model($className = __CLASS__) { return parent::model($className); } public function tableName() { return '{{auth}}'; } }
注:我的用戶表是auth,所以模型是Auth.php
<?php class IndexForm extends CFormModel { public $a_account; public $a_password; public $rememberMe; public $verifyCode; public $_identity; public function rules() { return array( array('verifyCode', 'captcha', 'allowEmpty' => !CCaptcha::checkRequirements(), 'message'=>'請輸入正確的驗證碼'), array('a_account', 'required', 'message' => '用戶名必填'), array('a_password', 'required', 'message' => '密碼必填'), array('a_password', 'authenticate'), array('rememberMe', 'boolean'), ); } public function authenticate($attribute, $params) { if (!$this->hasErrors()) { $this->_identity = new UserIdentity($this->a_account, $this->a_password); if (!$this->_identity->authenticate()) { $this->addError('a_password', '用戶名或密碼不存在'); } } } public function login() { if ($this->_identity === null) { $this->_identity = new UserIdentity($this->a_account, $this->a_password); $this->_identity->authenticate(); } if ($this->_identity->errorCode === UserIdentity::ERROR_NONE) { $duration = $this->rememberMe ? 60*60*24*7 : 0; Yii::app()->user->login($this->_identity, $duration); return true; } else { return false; } } public function attributeLabels() { return array( 'a_account' => '用戶名', 'a_password' => '密碼', 'rememberMe' => '記住登錄狀態', 'verifyCode' => '驗證碼' ); } }
注:IndexForm也可以寫成LoginForm,只是系統內已經有了,我就沒有替換它,同時注意看自己用戶表的字段,一般是password和username,而我的是a_account和a_password
Controller
<?php class IndexController extends Controller { public function actions() { return array( 'captcha' => array( 'class' => 'CCaptchaAction', 'width'=>100, 'height'=>50 ) ); } public function actionLogin() { if (Yii::app()->user->id) { echo "<div>歡迎" . Yii::app()->user->id . ",<a href='" . SITE_URL . "admin/index/logout'>退出</a></div>"; } else { $model = new IndexForm(); if (isset($_POST['IndexForm'])) { $model->attributes = $_POST['IndexForm']; if ($model->validate() && $model->login()) { echo "<div>歡迎" . Yii::app()->user->id . ",<a href='" . SITE_URL . "admin/index/logout'>退出</a></div>";exit; } } $this->render('login', array('model' => $model)); } } public function actionLogout() { Yii::app()->user->logout(); $this->redirect(SITE_URL . 'admin/index/login'); } }
注:第一個方法是添加驗證碼的
view
<meta http-equiv="content-type" content="text/html;charset=utf-8"> <?php $form = $this->beginWidget('CActiveForm', array( 'id' => 'login-form', 'enableClientValidation' => true, 'clientOptions' => array( 'validateOnSubmit' => true ) )); ?> <div class="row"> <?php echo $form->labelEx($model,'a_account'); ?> <?php echo $form->textField($model,'a_account'); ?> <?php echo $form->error($model,'a_account'); ?> </div> <div class="row"> <?php echo $form->labelEx($model,'a_password'); ?> <?php echo $form->passwordField($model,'a_password'); ?> <?php echo $form->error($model,'a_password'); ?> </div> <?php if(CCaptcha::checkRequirements()) { ?> <div class="row"> <?php echo $form->labelEx($model, 'verifyCode'); ?> <?php $this->widget('CCaptcha'); ?> <?php echo $form->textField($model, 'verifyCode'); ?> <?php echo $form->error($model, 'verifyCode'); ?> </div> <?php } ?> <div class="row rememberMe"> <?php echo $form->checkBox($model,'rememberMe'); ?> <?php echo $form->label($model,'rememberMe'); ?> <?php echo $form->error($model,'rememberMe'); ?> </div> <div class="row buttons"> <?php echo CHtml::submitButton('Submit'); ?> </div> <?php $this->endWidget(); ?>
同時修改項目下protected/components下的UserIdentity.php
<?php /** * UserIdentity represents the data needed to identity a user. * It contains the authentication method that checks if the provided * data can identity the user. */ class UserIdentity extends CUserIdentity { /** * 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() { /* $users=array( // username => password 'demo'=>'demo', 'admin'=>'admin', ); if(!isset($users[$this->username])) $this->errorCode=self::ERROR_USERNAME_INVALID; elseif($users[$this->username]!==$this->password) $this->errorCode=self::ERROR_PASSWORD_INVALID; else $this->errorCode=self::ERROR_NONE; return !$this->errorCode; */ $user_model = Auth::model()->find('a_account=:name',array(':name'=>$this->username)); if($user_model === null){ $this -> errorCode = self::ERROR_USERNAME_INVALID; return false; } else if ($user_model->a_password !== md5($this -> password)){ $this->errorCode=self::ERROR_PASSWORD_INVALID; return false; } else { $this->errorCode=self::ERROR_NONE; return true; } } }
感謝各位的閱讀!關于“Yii框架如何實現驗證碼、登錄及退出功能”這篇文章就分享到這里了,希望以上內容可以對大家有一定的幫助,讓大家可以學到更多知識,如果覺得文章不錯,可以把它分享出去讓更多的人看到吧!
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