警予createcommand不工作的cron

Question

我创建了一个croncommand和函数中使用SQL语句，但是当我通过命令php protected/yiic cron运行它，它会抛出错误：

exception 'CException' with message 'CConsoleApplication and its behaviors do not have a method or closure named "createCommand".' in /home/sbl13/public_html/atp/yii/framework/base/CComponent.php:266

我的功能是

public function actionSendFeedbackReminder() 
{ 
    $sql = "SELECT training.id,session.trainingid, 
    group_concat(session.id),min(c_startdate) AS start, 
    max(c_enddate) AS end,training.programid,catalog.title 
    FROM training JOIN session ON 
    session.trainingid=training.id 
    JOIN catalog ON catalog.id=training.catalogueid 
    WHERE training.active=1 and session.active=1 
    GROUP BY trainingid"; // query to get data from databse 
    $data = Yii::app()->createCommand($sql)->queryAll(); //throws error here 
} 

我没有从谷歌

Answer 1

createCommand得到任何帮助的CDbConnection的功能，而不是CConsoleApplication。您的代码应为：

$data = Yii::app()->db->createCommand($sql)->queryAll();