Cakephp：按相關型號查找訂單

Question

我有兩種型號：事件和日期。一個事件有很多日期。我想按最近的日期排序。例如：

[0] => Array 
     (
      [Event] => Array 
       (
        [id] => 1 
        [name] => Event 1 
       ) 

      [Date] => Array 
       (
        [0] => Array 
         (
          [id] => 1 
          [date] => 2015-02-05 
          [start_time] => 06:00:00 
          [end_time] => 17:00:00 
          [evento_id] => 1 
         ) 
        [1] => Array 
         (
          [id] => 2 
          [date] => 2015-02-06 
          [start_time] => 06:00:00 
          [end_time] => 17:00:00 
          [evento_id] => 1 
         ) 

       ) 

     ) 
[1] => Array 
     (
      [Event] => Array 
       (
        [id] => 2 
        [name] => Event 2 
       ) 

      [Date] => Array 
       (
        [0] => Array 
         (
          [id] => 3 
          [date] => 2015-02-11 
          [start_time] => 06:00:00 
          [end_time] => 17:00:00 
          [event_id] => 2 
         )  
       ) 

     ) 
[2] => Array 
     (
      [Event] => Array 
       (
        [id] => 3 
        [name] => Event 3 
       ) 

      [Date] => Array 
       (
        [0] => Array 
         (
          [id] => 5 
          [date] => 2015-02-02 
          [start_time] => 06:00:00 
          [end_time] => 17:00:00 
          [event_id] => 3 
         ) 
        [1] => Array 
         (
          [id] => 6 
          [date] => 2015-02-03 
          [start_time] => 06:00:00 
          [end_time] => 17:00:00 
          [event_id] => 3 
         ) 

       ) 

     ) 

所以，我想要檢索的事件順序是：事件3，事件1，事件2。

這是我的我打電話find方法：

$this->Event->find('all', array('contain' => array('Date' => array('conditions' => array('Date.date >=' => date('Y-m-d')))))); 

這是可能做到這一點與CakePHP的發現方法？謝謝。

Answer 1

像這樣的事情應該去做

$this->Event->find('all', array(
    'contain' => array(
     'Date' => array(
      'conditions' => array(' 
       Date.date >=' => date('Y-m-d') 
      ) 
     ) 
    ), 
    order => array(
     'COUNT(Date.id)' => 'DESC' 
    ) 

));