求助 yii [ 新手入门 ]

继承CPortlet
不知道是不是你想要的，如果不是请无视。给个例子。

<?php 
Yii::import('zii.widgets.CPortlet');
Yii::import('application.modules.baobei.config.Main');

class HotProduct extends CPortlet
{
	public $pid ; 
	public $visible ; 
	public $number = Main::HOT_PRODUCT_NUM ; 
	
	public function init()
	{
		$this->visible = (Yii::app()->user->isGuest) ? false : true ;
		parent::init();
	}
	
	protected function renderContent()
	{
		$criteria = new CDbCriteria(array(
			'order'=>'rand()',
			'condition'=>'t.id != :id ',
			'params'=>array(':id'=>$this->pid),
			'limit'=>$this->number,
		));
		if ($this->visible){
			$criteria->addCondition('user_id !='.Yii::app()->user->id);
		}
		$model = HotInCategory::model()->findAll($criteria);
		$this->render('hotProduct',array('model'=>$model,'main'=>$this->getImageDir()));
	}
	
	private function getImageDir()
	{
		$main = new Main();
		return $main ;
	}
	
}