Zend Framework Database: Deleting Data

  public function delAction()
  {
    $params = array('host'		=>'localhost',
	                'username'	=>'root',
					'password'  =>'admin',
					'dbname'	=>'zend'
	               );
	$DB = new Zend_Db_Adapter_Pdo_Mysql($params);
	$request = $this->getRequest();
	
	$sql = "DELETE FROM `user` WHERE id='".$request->getParam('id')."'";
	$DB->query($sql);
	
    $this->view->assign('title','Delete Data');
	$this->view->assign('description','Deleting succes');  		  
    $this->view->assign('list',$request->getBaseURL()."/user/list");  

<? include "header.phtml"; ?>
  <h1><?=$this->escape($this->title);?></h1>
  <h2><?=$this->escape($this->description);?></h2>
  <a href="<?=$this->escape($this->list);?>">Member List</a>
<? include "footer.phtml"; ?>