YII Framework学习教程-YII的V-view的render若干函数-2011-11-17

YII中，在action可以通过$this->render来指定它的view。其实还其他一$this->render开头的函数。

yiilite.php中有这么几个函数。

public function renderText($text,$return=false)
	{
		if(($layoutFile=$this->getLayoutFile($this->layout))!==false)
			$text=$this->renderFile($layoutFile,array('content'=>$text),true);
		$text=$this->processOutput($text);
		if($return)
			return $text;
		else
			echo $text;
	}
	public function renderPartial($view,$data=null,$return=false,$processOutput=false)
	{
		if(($viewFile=$this->getViewFile($view))!==false)
		{
			$output=$this->renderFile($viewFile,$data,true);
			if($processOutput)
				$output=$this->processOutput($output);
			if($return)
				return $output;
			else
				echo $output;
		}
		else
			throw new CException(Yii::t('yii','{controller} cannot find the requested view "{view}".',
				array('{controller}'=>get_class($this), '{view}'=>$view)));
	}
	public function renderClip($name,$params=array(),$return=false)
	{
		$text=isset($this->clips[$name]) ? strtr($this->clips[$name], $params) : '';
		if($return)
			return $text;
		else
			echo $text;
	}
	public function renderDynamic($callback)
	{
		$n=count($this->_dynamicOutput);
		echo "<###dynamic-$n###>";
		$params=func_get_args();
		array_shift($params);
		$this->renderDynamicInternal($callback,$params);
	}
	public function renderDynamicInternal($callback,$params)
	{
		$this->recordCachingAction('','renderDynamicInternal',array($callback,$params));
		if(is_string($callback) && method_exists($this,$callback))
			$callback=array($this,$callback);
		$this->_dynamicOutput[]=call_user_func_array($callback,$params);
	}

例如让action只输出一句话，不应用layout。可以用renderText

/**
	 * This is the default 'index' action that is invoked
	 * when an action is not explicitly requested by users.
	 */
	public function actionIndex()
	{
		//$viewData=array();
		
		// renders the view file 'protected/views/site/index.php'
		// using the default layout 'protected/views/layouts/main.php'
		//$viewData['homeUrl'] = Yii::app()->homeUrl;		
		//$viewData['var1'] = '这是var1变量的对应的值';
		//$this->layout='mylayout';
		//$this->renderPartial('index',$viewData);
                $this->layout=false;
		$this->renderText('test',$return=false);
		
	}

看看上面的render原型，可以看到可以调用一个回调函数。具体功能可以自己代码试用一下。

更强大的功能，需要自己慢慢发现。