如何將這個查詢轉換在Yii框架模型

Question

SELECT u.id, u.username, u.score, 
(SELECT COUNT(ownerId) FROM post p WHERE p.ownerId = u.id) AS totalPost 
FROM users u 
ORDER BY u.score DESC, totalPost DESC LIMIT 10 

Answer 1

$sql = "SELECT u.id, u.username, u.score, ". 
    "(SELECT COUNT(ownerId) FROM post p WHERE p.ownerId = u.id) AS totalPost ". 
    "FROM users u ". 
    "ORDER BY u.score DESC, totalPost DESC ". 
    "LIMIT 10"; 
$command=Yii::app()->db->createCommand($sql); 
$results=$command->query(); 

，或者如果你有一個用戶模型（我認爲這會工作 - 我沒有測試其中任一;）

$criteria = new CDbCriteria(); 
$criteria->select = "t.id, t.username, t.score, (SELECT COUNT(ownerId) FROM post p WHERE p.ownerId = t.id) AS totalPost"; 
$criteria->order = "u.score DESC, totalPost DESC"; 
$criteria->limit = "10"; 
$results = User::model()->findAll($criteria); // this returns an array of User models 

Answer 2

還沒有測試過。但它可能像這樣工作

$user = User::model() 
     ->with('post') 
     ->findAll(
      array(
      'select'=>array('id','username','score','totalPost'=>'count(ownerId)'), 
      'group'=>'id', 
      'order'=>'score DESC,totalPost DESC' 
     ) 
    );