DISTINCT字段不顯示在cakephp 1.3中

Question

我正在運行feeds表，我不希望帶有「NULL」的DISTINCT字段檢索。

$this->Feed->recursive = 0; 
$this->paginate = array('Feed' => array(
'limit' => 6, 
'fields' => 'DISTINCT Feed.* IS NOT NULL', 
'conditions' => array('Feed.member_id' => $friends_ids), 
'order' => array('Feed.created' => 'DESC'), 
)); 
$notes = $this->paginate('Feed'); 
$this->set('notes', $notes); 

// debug($notes); 
unset($notes); 

這給了我一個錯誤。警告（512）：SQL錯誤：1054：未知列'Feed。* IS NOT NULL'。在cakephp上運行這個1.3謝謝。

Answer 1

嘗試將NULL檢查移動到條件數組。

'fields' => 'DISTINCT Feed.*', 
'conditions' => array(
    'Feed.member_id' => $friends_ids, 
    'Feed.the_field_to_check IS NOT NULL' 
),