yii用户注册表单验证实例

<?php
//使用小物件生成form元素
$form=$this->beginwidget('cactiveform');
?>
<!--用户名-->
<?php echo $form->labelex($model,'username');?>
<?php echo $form->textfield($model,'username');?>
<?php echo $form->error($model,'username');?>
<br>
<!--密码-->
<?php echo $form->labelex($model,'password');?>
<?php echo $form->passwordfield($model,'password');?>
<?php echo $form->error($model,'password');?>
<br>
<!--确认密码-->
<?php echo $form->labelex($model,'password2');?>
<?php echo $form->passwordfield($model,'password2');?>
<?php echo $form->error($model,'password2');?>
<br>
<!--邮箱-->
<?php echo $form->labelex($model,'email');?>
<?php echo $form->textfield($model,'email');?>
<?php echo $form->error($model,'email');?>
<br>
<!--性别-->
<?php echo $form->labelex($model,'sex');?>
<?php echo $form->radiobuttonlist($model,'sex',array(1=>'男',2=>'女'),array("separator"=>" "));?>
<br>
<!--年级-->
<?php echo $form->labelex($model,'grade');?>
<?php echo $form->dropdownlist($model,'grade',array(0=>"--请选择--",1=>"2010级",2=>"2011级",3=>"2012级"));?>
<?php echo $form->error($model,'grade');?>
<br>
<?php echo $form->labelex($model,'hobby');?>
<?php echo $form->checkboxlist($model,'hobby',array(1=>"篮球",2=>"足球",3=>"排球"),array("separator"=>" "));?>
<?php echo $form->error($model,'hobby');?>
<!--提交-->
<?php echo chtml::submitbutton('提交');?>
<?php
$this->endwidget();
?>

<?php
/*
 * to change this template, choose tools | templates
 * and open the template in the editor.
 */
class user extends cactiverecord{
  //创建一个模型的对象 静态
  public $password2;//非数据库的字段，但是在view中需要用到
  public static function model($classname = __class__) {
    return parent::model($classname);
  }
  //返回当前数据表的名字
  public function tablename() {
    //parent::tablename();
    return '{{user}}';//这样写可以省略前缀
  }
  //设置标签的显示名字
  public function attributelabels() {
    return array(
      "username"=>"姓名",
      "password"=>"密码",
      "password2"=>"确认密码",
      "email"=>"邮箱",
      "sex"=>"性别",
      "grade"=>"年级",
      "hobby"=>"爱好",
    );
  }
  //验证表单域
  public function rules() {
    return array(
      array("username","required","message"=>"用户名不能为空"),
      array("password","required","message"=>"密码不能为空"),
      //验证密码和确认密码
      array("password2","compare","compareattribute"=>"password","message"=>"两次密码不一致"),
      //验证邮箱
      array("email","email","allowempty"=>false,"message"=>"邮箱格式不正确"),
      //验证年级
      array("grade","in","range"=>array(1,2,3),"message"=>"请选择年级"),
      //验证爱好，使用自定义规则
      array("hobby","checkhobby"),
    );
  }
  //验证爱好
  function checkhobby(){
    $this->hobby;
    $len= strlen($this->hobby);
    if($len<3){
      $this->adderror("hobby","爱好至少为2个以上");
    }
  }
}
?>

//信息添加 添加显示页面和添加处理使用同一个方法
  public function actionadd(){
    $user=new user();
    if(isset($_post['user'])){
//      foreach ($_post['user'] as $k =>$v){
//        $user->$k=$v;
//      }
      if(is_array($_post['user']['hobby']))
        $_post['user']['hobby']= implode(",", $_post['user']['hobby']);
      //print_r($_post['user']);
      $user->attributes=$_post['user'];
      if($user->save()){
        echo 'success';
      }else{
        echo 'error';
      }
    }
    $this->renderpartial("new",array("model"=>$user));
}