对象的排序顺序是错误

Question

我试图弄清楚什么是错上xPDO SQL查询排序顺序，

这个查询

$criteria = $this->modx->newQuery($table); 
$criteria->sortby($sortby,$sortdir); 
$options = $this->modx->getCollectionGraph($table,$criteria); 
$criteria->prepare(); 
echo '<pre>'.$criteria->toSQL().'</pre>'; 

结果在这个SQL〜这是正确的：

SELECT `Location`.`id` AS `Location_id`, `Location`.`created` AS `Location_created`, 
`Location`.`modified` AS `Location_modified`, `Location`.`location` AS 
`Location_location`, `Location`.`group` AS `Location_group`, `Location`.`comment` 
AS `Location_comment` 
FROM `flow_location` AS `Location` ORDER BY location asc 

但是，如果我尝试遍历查询：

foreach($options as $option) { 
    echo $option->get($value).'<br>'; 
} 

它会通过数据库中的订单ID显示记录！？

我该如何解决这个问题？

Answer 1

您正在订购location asc，但location未在您的查询中定义。您将列location重新命名为Location_location，因此您应该订购Location_location asc。

SELECT `Location`.`id` AS `Location_id`, `Location`.`created` AS `Location_created`, 
`Location`.`modified` AS `Location_modified`, `Location`.`location` AS 
`Location_location`, `Location`.`group` AS `Location_group`, `Location`.`comment` 
AS `Location_comment` 
FROM `flow_location` AS `Location` ORDER BY location asc