Question

我想从具有相同列名的两个表中获取数据。我已经在列名称中添加了一些别名。但这不起作用。

控制器

public function price_master_list(){

    $result['mediacat'] = $this->em->getmedia_with_category();
    $this->load->view('price_master_list',$result);
}

模型

function getmedia_with_category(){
    $query2 = $this->db->select('*','m.name as `catname`', false)->from('media as m')->join('media_category as c', 'c.media_id = m.id')->where('m.delete_flag','1')->get();
    $response = $query2->result_array();
    return $response;
}

查看

<?php foreach($mediacat as $medcat){ ?>
<tr>
    <td><?php echo $medcat['catname']; ?></td>
</tr>
<?php } ?>

我希望你能帮助我。并先谢谢您。

Answer 1

尝试一下

CI select仅接受两个参数，您传递了三个参数

function getmedia_with_category(){
    $query2 = $this->db->select('m.*,c.name as catname', false)->from('media as m')->join('media_category as c', 'c.media_id = m.id')->where('m.delete_flag','1')->get();
    $response = $query2->result_array();
    return $response;
}

消息：未定义的索引：获取列名（两个具有相同列的表）时Codeigniter

1 个答案: