在Cake中选择SUM

Question

当我尝试使用关注代码获取名为Serviceinfo.services

的列的总和时

$conditions = array('fields'=>array('SUM(Serviceinfo.services) as servicecount'),'conditions'=>array('time_id BETWEEN ? AND ?'=>array($startid,$endtid)));
$services = $this->Serviceinfo->find('all',$conditions);

我必须使用services[0][0]['servicecount']获取和数据，这看起来有点奇怪。我期望的是services['Serviceinfo']['servicecount']，或更简单的那个。那我怎么能解决这个问题？提前谢谢！< / p>

Answer 1

查看此链接; http://teknoid.wordpress.com/2008/09/29/dealing-with-calculated-fields-in-cakephps-find/

Answer 2

尝试为：

'SUM(Serviceinfo.services) as Serviceinfo.servicecount'