2表的内部联接无法使用yii

Question

I want to perform a query with join in Yii. Query is like that "select j.title,j.company_name from job_application a inner join jobs j on a.job_id = j.id"

My query in controller-sitecontroller

         public function actionmyjob()
         {
         $row = Yii::app()->db->createCommand()
        ->select('j.title,j.company_name')
        ->from('job_application a')
        ->join('jobs j','a.job_id = j.id')
        ->queryRow();
    echo $count=count($row);
       $this->render('myjob',array('row' =>$row));
      }

My view page myjob.php

 <?php
 foreach($row as $rows)  
 {
 echo $row->title."</br>";
 }

 ?>

Is there anything you can help? Any idea is greatly appreciated.

Answer 1

I think there is no problem with your query. But still you should check using CVarDumper::dump($row,10,true);

And in your view file you should use this

<?php
 foreach($row as $rows)  
 {
 echo $rows."</br>"; // If you want to use only title then try $row['title']
 }
 ?>

---

And if you are interested in all the result then you should use queryAll() .

For this change your action to

public function actionmyjob()
         {
         $row = Yii::app()->db->createCommand()
        ->select('j.title,j.company_name')
        ->from('job_application a')
        ->join('jobs j','a.job_id = j.id')
        ->queryAll();
    echo $count=count($row);
       $this->render('myjob',array('row' =>$row));
      }

And your view to

<?php
 foreach($row as $rows)  
 {
 echo $rows['title']."</br>"; // change $row to $rows
 }

 ?>