Error line:
<?php echo $form->labelEx($model,'name'); ?>
My Form Model:
<?php
/**
 * SocietyForm class.
 * SocietyForm is the data structure for keeping
 */
class SocietyForm extends CFormModel
{
	public $active=true;
	public $capacity=1000;
	public $name;
	public $description;
	public $price=0.00;
	/**
	 * Declares the validation rules.
	 * The rules state that username and password are required,
	 * and password needs to be authenticated.
	 */
	public function rules()
	{
		return array(
			array('active, capacity', 'name', 'price', 'required'),
			array('name', 'length', 'min'=>3, 'max'=>20),
			array('description', 'length', 'max'=>10000),
			array('active', 'boolean'),
			array('capacity', 'numerical', 'integerOnly'=>true, 'min' => 10, 'max'=>10000),
			array('price', 'numerical', 'integerOnly'=>false, 'min' => 1.00, 'max'=>999.99),
		);
	}
	/**
	 * Declares attribute labels.
	 */
	public function attributeLabels()
	{
		return array(
			'active'=>Yii::t('site', 'Active'),
			'capacity'=>Yii::t('site', 'Capacity'),
			'name'=>Yii::t('site', 'Name'),
			'description'=>Yii::t('site', 'Description'),
			'price'=>Yii::t('site', 'Price'),
		);
	}
}
My action:
public function actionSocieties()
	{
		$model=NULL;
		if(isset($_GET['new']))
		{
			$model=new SocietyForm;
			// if it is ajax validation request
			if(isset($_POST['ajax']) && $_POST['ajax']==='society-form')
			{
				echo CActiveForm::validate($model);
				Yii::app()->end();
			}
			
			if(isset($_POST['SocietyForm']))
			{
				// collects user input data
				$model->attributes=$_POST['SocietyForm'];
				// validates user input and redirect to previous page if validated
				if($model->validate())
					$this->redirect($this->route);
			}
			
		}
		$this->render('societies', array('model'=>$model));
	}
My View
<div class="grid_12">
<?php 
if($model===NULL):
echo CHtml::link('<h3>New society</h3>', array($this->route, 'new'=>1));
?>
<?php else: ?>
</div>
<div class="form">
<?php $form=$this->beginWidget('CActiveForm', array(
    'id'=>'society-form',
    'enableAjaxValidation'=>true,
    'focus'=>array($model,'name'),
	'htmlOptions'=>array('enctype'=>'multipart/form-data'),
)); ?>
<div class="grid_12">
	<p class="note"><?php echo UserModule::t('Fields with <span class="required">*</span> are required.'); ?></p>
	
	<?php echo $form->errorSummary($model); ?>
</div>
<div class="grid_4">	
	<div class="row">
		<?php echo $form->labelEx($model,'name'); ?>
		<?php echo $form->textField($model,'name', array(
														'maxlength'	=>20,
														'class'		=>'validate[required,custom[onlyLetterNumber],minSize[3],maxSize[20]]'
														)); ?>
        <?php echo $form->error($model,'name'); ?>
	</div>
</div>
	<div class="row">
		<?php echo $form->labelEx($model,'capacity'); ?>
		<?php echo $form->passwordField($model,'capacity', array(
															'maxlength'	=>11,
															'class'		=>'validate[required,custom[number],min[10],max[10000]]'
															)); ?>
        <?php echo $form->error($model,'capacity'); ?>
	</div>
    
	<div class="row">
		<?php echo $form->labelEx($model,'price'); ?>
		<?php echo $form->passwordField($model,'price', array(
															'maxlength'	=>11,
															'class'		=>'validate[required,custom[number],min[1],max[999.99]]'
															)); ?>
        <?php echo $form->error($model,'price'); ?>
	</div>
	<div class="row">
		<?php echo $form->labelEx($model,'description'); ?>
		<?php echo $form->textField($model,'description', array(
														'maxlength'	=>10000,
														'class'		=>'validate[maxSize[10000]]'
														)); ?>
        <?php echo $form->error($model,'description'); ?>
	</div>
		
	<div class="row rememberMe">
		<?php echo $form->checkBox($model,'acitve'); ?>
		<?php echo $form->label($model,'acitve'); ?>
	</div>
	<div class="row submit">
		<?php echo CHtml::submitButton('Add'); ?>
	</div>
	
<?php $this->endWidget(); ?>
</div>
<script type="text/javascript">
	$("#society-form").validationEngine();
</script>
</div>
<?php endif; ?>
</div>
its exactly what i use to register and login and it works
what i need more here?
thanks

 it works
 it works 