学说:如何操纵集合？

Question

在动作中使用symfony && doctrine 1.2,我尝试为用户显示排名靠前的网站.

我做了:

 public function executeShow(sfWebRequest $request)
  {
    $this->user = $this->getRoute()->getObject();
    $this->websites = $this->user->Websites; 
  }

唯一的问题是它返回一个包含所有网站的Doctrine集合,而不仅仅是排名靠前的网站.

我已经设置了一个方法(getTopRanked()),但如果我这样做:

$this->user->Websites->getTopRanked()

它失败.

如果有人有想法改变Doctrine集合,只过滤排名最高的.

谢谢

PS:我的方法看起来像(在websiteTable.class.php中):

   public function getTopRanked()
{
  $q = Doctrine_Query::create()
       ->from('Website')
      ->orderBy('nb_votes DESC')
       ->limit(5);
  return $q->execute();

}

Answer 1

我宁愿在方法之间传递Doctrine_Query:

//action
public function executeShow(sfWebRequest $request)   
{
   $this->user = $this->getRoute()->getObject();
   $this->websites = $this->getUser()->getWebsites(true);  
}

//user
  public function getWebsites($top_ranked = false)
  {
    $q = Doctrine_Query::create()
     ->from('Website w')
     ->where('w.user_id = ?', $this->getId());
    if ($top_ranked)
    {
      $q = Doctrine::getTable('Website')->addTopRankedQuery($q);
    }
    return $q->execute();
  }

//WebsiteTable
public function addTopRankedQuery(Doctrine_Query $q)
{
  $alias = $q->getRootAlias();
  $q->orderBy($alias'.nb_votes DESC')
    ->limit(5)
  return $q
}