如何创建ajax请求以使用DataTable和Codeigniter并在同一文件中返回

Posted 2021-04-21

我是Codeigniter的新手，仍在尝试了解其工作原理，我正在尝试从视图addHistory将ajax发送到控制器Drivers.php中的函数fetchDriversHistory但我没有得到回应，出现错误

DataTables warning: table id=manageTable1 - Invalid JSON response 

由于某种原因，当我检查请求的响应是页面的返回html格式时，在浏览器->网络中

我有用于初始化数据表的文件application views drivers addHistory.php

 manageTable = $('#manageTable1').DataTable({
 "ajax": {
  "url": "fetchDriversHistory",
  "data": {
       "user_id": <?php echo $id ?>
   }
   },
     'order': []
   });

在application controllers Drivers.php中，找到fetchDriversHistory

 public function fetchDriversHistory()
 {
   $result = array('data' => array());

   $data = $this->model_drivers->fetchDriversHistory($id);

   foreach ($data as $key => $value) {

     $result['data'][$key] = array(
       $value['date_added'],
       $value['daily_rate'],
       $value['dayoff']
     );
   }
   echo json_encode($result);
 }

型号application models Model_drivers.php

    public function fetchDriversHistory($id = null)
{
        $sql = "SELECT driver_id, daily_date, dayoff, date_added FROM addDriverHistory where id = ?";
        $query = $this->db->query($sql, array($id));
        return $query->result_array();
}

答案

您在javascript中定义的URL错误。默认情况下，您需要将URL定义为https//:<domain.com>/<controller>/<method>/<arguments>。

更多详细信息read this。>>

manageTable = $('#manageTable1').DataTable({
 "ajax": {
  "url": "<?php echo base_url('drivers/fetchDriversHistory');?>", // This will generate absulote URL
  "data": {
       "user_id": <?php echo $id ?>
   }
   },
     'order': []
   });

另一答案

您的URL错误，您应该：

"url": "<?= base_url("your_controller_name/fetchDriversHistory") ?>"