CActiveForm验证机制 服务器端/客户端/ajax验证

CActiveForm实际上是对Chtml类的封装，它与Chmtl不同的地方是CActiveForm提供了验证机制，有三种：
   服务器端/客户端/ajax验证

转载于：

上帝的眼泪的博客   http://601502546.blog.163.com/blog/static/25961076201303195752896/

   基本表单：   <?php $form=$this->beginWidget('CActiveForm',  array(   'id'=>'contact_form',   'enableAjaxValidation'=>true//是否是ajax验证//'enableClientValidation'=>true,//是否客户端验证   //'action'=>'site/contact',   //'method'=>'get',  )   ); ?> <p class="note">Fields with <span class="required">*</span> are required.</p> <div class="row">  <?php echo $form->labelEx($model,'name');  ?>  <?php echo $form->textField($model,'name');?>  <?php    //单独显示错误信息    echo $form->error($model,'name');      ?>   </div> <div class="row">  <?php echo $form->labelEx($model,'email'); ?>  <?php echo $form->textField($model,'email'); ?>  <?php    //单独显示错误信息    echo $form->error($model,'email');      ?> </div> <div class="row">  <?php echo $form->labelEx($model,'subject'); ?>  <?php echo $form->textField($model,'subject',array('size'=>60,'maxlength'=>128)); ?> </div> <div class="row">  <?php echo $form->labelEx($model,'body'); ?>  <?php echo $form->textArea($model,'body',array('rows'=>6, 'cols'=>50)); ?> </div> <?php   $model -> name = 0;      echo $form->radioButtonList($model,'name',       array('1'=>'Male','0'=>'Female'),       array('separator'=>' ','labelOptions'=>array('class'=>''))  )  ?>  <div class="row">  <?php echo $form->labelEx($model,'label:'); ?> <?php      $model ->name = array(1,2,3,4);//设定checkbox的默认值，其实应该在controller里面设定最好,radio,select的设定方法和这个一样    echo $form->checkBoxList($model,'name',       array('1'=>'Football','2'=>'Music','3'=>'Game','4'=>'basketball'),       array('separator'=>' ','labelOptions'=>array('class'=>'mylabel'))  ) ?> </div> <?php if(extension_loaded('gd')): ?> <div class="row">  <?php echo $form->labelEx($model,'verifyCode'); ?>  <div>  <?php $this->widget('CCaptcha'); ?>  <?php echo $form->textField($model,'verifyCode'); ?>  </div>  <div class="hint">Please enter the letters as they are shown in the image above.  <br/>Letters are not case-sensitive.</div> </div> <?php endif; ?> <div class="row submit">  <?php       echo CHtml::submitButton('Submit');   ?> </div>  //总体显示错误信息 <?php echo $form->errorSummary($model); ?><?php $this->endWidget(); ?>1、如果开启ajax验证在controller端实现代码： public function actionContact() {  $model=new ContactForm;  //ajax validation  if(isset($_POST['ajax']) && $_POST['ajax']==='contact_form')  {   echo CActiveForm::validate($model);   Yii::app()->end();  }    if(isset($_POST['ContactForm']))  {   $model->attributes=$_POST['ContactForm'];   if($model->validate())//服务器端验证   {    $headers="From: {$model->email}\r\nReply-To: {$model->email}";    mail(Yii::app()->params['adminEmail'],$model->subject,$model->body,$headers);    Yii::app()->user->setFlash('contact','Thank you for contacting us. We will respond to you as soon as possible.');    $this->refresh();   }  }  $this->render('contact',array('model'=>$model)); }