CakePHP的$这个 - >型号 - >查询返回

Question

当我运行这样的查询：

$this->User->query("DELETE FROM users WHERE deleted = 1 AND created <= '".$created."'"); 

我怎么知道是否有正在运行的查询时出现错误？

我想将消息发送给用户，如果有一个错误是这样的：

if(!$this->User->query("DELETE FROM users WHERE deleted = 1 AND created <= '".$created."'")) 
    $this->Session->setFlash('There was an error running this query'); 

此方法总是返回0，但

Answer 1

你想知道如果查询无故障运行是否有错误，或者是否有记录被删除？

您可以使用类似$this->User->deleteAll代替

$this->User->deleteAll(array(
    'deleted' => 1 
    'created <=' => $created 
)); 

它会返回布尔TRUE成功，失败假的。