Yii实现单用户博客系统文章详情页插入评论表单的方法

<?php
function test($objs)
{
 $objs->var=10;
}
class one
{
 public $var=1;
}
$obj=new one();
echo $obj->var.'<p>';
test($obj);
echo $obj->var;
exit;

...
/**
* displays a particular model.
* @param integer $id the id of the model to be displayed
*/
public function actionview($id)
{
  $post=$this->loadmodel($id);
  $comment=$this->newcomment($post);
  $this->render('view',array(
    'model'=>$post,
    'comment'=>$comment,
  ));
}
protected function newcomment($post)
{
  $comment=new comment();
  if(isset($_post['comment']))
  {
   $comment->attributes=$_post['comment'];
   if($post->addcomment($comment))//==============================
   {
    if($comment->status==comment::status_pending)
     yii::app()->user->setflash('commentsubmitted','thank you...');
    $this->refresh();
   }
  }
  return $comment;
}
...

...
public function addcomment($comment)
{
  if(yii::app()->params['commentneedapproval'])
   $comment->status=comment::status_pending;
  else
   $comment->status=comment::status_approved;
  $comment->post_id=$this->id;
  return $comment->save();
}
...

...
<div id="comments">
<h3>leave a comment</h3>
<?php if(yii::app()->user->hasflash('commentsubmitted')): ?>
 <div class="flash-success">
 <?php echo yii::app()->user->getflash('commentsubmitted'); ?>
 </div>
<?php else: ?>
 <?php $this->renderpartial('/comment/_form',array(
 'model'=>$comment,
 )); ?>
<?php endif; ?>
</div><!-- comments -->
...