Codeigniter - 如何从ajax获取数据表数据?

时间:2017-03-09 14:22:45

标签: javascript php ajax codeigniter datatables

我正在使用基于CodeIgniter的应用程序。代码如下:

控制器

public function index(){
    $data = array(
            'record' => $this->Parameter_model->get_parameter('tbl_parameter')
        );
    $this->site->view('parameter', $data);
}

模型

public function get_parameter($table){
    $query = $this->db->query("select * from $table order by 'parameter_ID' ASC");
    if($query->num_rows() > 0){
        foreach($query->result_array() as $row){
            $data[] = $row;
        }

        $query->free_result();
    }

    else{
        $data = NULL;
    }

    return $data;
}

查看

<table id="parameter" class="listdata table table-bordered table-striped table-hover">
  <thead>
    <tr>
      <th class="text-nowrap">Parameter</th>
      <th class="text-nowrap">Method</th>
      <th class="text-nowrap">Type</th>
      <th class="text-nowrap">Action</th>
    </tr>
  </thead>
  <tbody>
    <?php if(!empty($record)):?>
      <?php foreach($record as $row):?>
        <tr align="center">
          <td class="text-nowrap"><a href="<?=set_url('parameter/parameter_view/'.$row['parameter_ID']);?>"><strong><?php echo $row['parameter_name'];?></strong></a></td>
          <td class="text-nowrap"><?php echo $row['parameter_method'];?></td>
          <td class="text-nowrap">
            <?php 
              if($row['parameter_type'] == "1"){
                echo "General";
              }
              else{
                echo "COA Only";
              }
            ?>
          </td>
          <td class="text-nowrap">
            <div>
              <a href="<?=set_url('parameter#edit?parameter_ID='.$row['parameter_ID']);?>" class="btn btn-warning btn-xs">Edit</a>
              <a href="<?=set_url('parameter/parameter_view/'.$row['parameter_ID']);?>" class="btn btn-success btn-xs">Lihat</a>
              <a href="<?=set_url('parameter#hapus?parameter_ID='.$row['parameter_ID']);?>" class="btn btn-danger btn-xs">Hapus</a>
            </div>
          </td>
        </tr>
      <?php endforeach;?>
    <?php endif;?>
  </tbody>
  <tfoot>
    <tr>
      <th class="text-nowrap">Parameter</th>
      <th class="text-nowrap">Method</th>
      <th class="text-nowrap">Type</th>
      <th class="text-nowrap">Action</th>
    </tr>
  </tfoot>
</table>

的Javascript

// parameter
// Setup - add a text input to each footer cell
$('#parameter tfoot th').each( function () {
    var title = $(this).text();
    $(this).html( '<input type="text" style="width:100%;" title="Search '+title+'" placeholder="Search '+title+'" />' );
} );

// DataTable
var table = $('#parameter').DataTable({
    paging: true,
    searching: true,
    ordering: true,
    "order": [[ 0, "asc" ]],
    scrollX: true,
    scroller: true,
});

// Apply the search
table.columns().every( function () {
    var that = this;

    $( 'input', this.footer() ).on( 'keyup change', function () {
        if ( that.search() !== this.value ) {
            that
                .search( this.value )
                .draw();
        }
    } );
} );

以上代码运作良好。

现在,我想通过ajax请求将数据提取到table id="parameter"。我已经从网址创建了一个ajax请求,让我们在这里http://'+host+path+'/action/ambilvar path = window.location.pathname;var host = window.location.hostname;

ajax响应产生:

{"record":[{"parameter_ID":"1","parameter_name":"pH","parameter_method":"(pH meter)","parameter_type":"1",{"parameter_ID":"2","parameter_name":"Viscosity","parameter_method":"(Brookfield-Viscometer)","parameter_type":"1"}]}

问题
如何使用Ajax数据源配置数据表,以及如何将数据显示到表中,因此我可以使用数据来创建类似代码的链接
<a href="<?=set_url('parameter/parameter_view/'.$row['parameter_ID']);?>">

3 个答案:

答案 0 :(得分:2)

您可以通过server side脚本执行dataTable,如下所示。

  1. 更改您的控制器,以便它将处理来自datatable的服务器端调用,您只能在控制器中创建动态链接。我在控制器中添加了评论以获取更多详细信息。
  2. 更改脚本以使用ajax调用它。
  3. 加载页面时,请勿在view tbody中加载任何内容。
  4. 注意:我跳过了我用直接查询的模型部分。希望你能改变它。
  5. <强> Contorller

    public function index() {
            $data = array();
            if ($this->input->is_ajax_request()) {
                /** this will handle datatable js ajax call * */
                /** get all datatable parameters * */
                $search = $this->input->get('search');/** search value for datatable  * */
                $offset = $this->input->get('start');/** offset value * */
                $limit = $this->input->get('length');/** limits for datatable (show entries) * */
                $order = $this->input->get('order');/** order by (column sorted ) * */
                $column = array('parameter', 'method', 'type');/**  set your data base column name here for sorting* */
                $orderColumn = isset($order[0]['column']) ? $column[$order[0]['column']] : 'parameter';
                $orderDirection = isset($order[0]['dir']) ? $order[0]['dir'] : 'asc';
                $ordrBy = $orderColumn . " " . $orderDirection;
    
                if (isset($search['value']) && !empty($search['value'])) {
                    /** creat sql or call Model * */
                    /**   $this->load->model('Parameter_model');
                      $this->Parameter_model->get_parameter('tbl_parameter'); * */
                    /** I am calling sql directly in controller for your answer 
                     * Please change your sql according to your table name
                     * */
                    $sql = "SELECT * FROM TABLE_NAME WHERE column_name '%like%'" . $search['value'] . " order by " . $ordrBy . " limit $offset,$limit";
                    $sql = "SELECT count(*) FROM TABLE_NAME WHERE column_name '%like%'" . $search['value'] . " order by " . $ordrBy;
                    $result = $this->db->query($sql);
                    $result2 = $this->db->query($sql2);
                    $count = $result2->num_rows();
                } else {
                    /**
                     * If no seach value avaible in datatable
                     */
                    $sql = "SELECT * FROM TABLE_NAME  order by " . $ordrBy . " limit $offset,$limit";
                    $sql2 = "SELECT * FROM TABLE_NAME  order by " . $ordrBy;
                    $result = $this->db->query($sql);
                    $result2 = $this->db->query($sql2);
                    $count = $result2->num_rows();
                }
                /** create data to display in dataTable as you want **/    
    
                $data = array();
                if (!empty($result->result())) {
                    foreach ($result->result() as $k => $v) {
                        $data[] = array(
                            /** you can add what ever anchor link or dynamic data here **/
                             'parameter' =>  "<a href=".set_url('parameter/parameter_view/'.$v['parameter_ID'])."><strong>".$v['parameter_name']."</strong></a>",
                              'method' =>  "<a href=".set_url('parameter/parameter_view/'.$v['parameter_ID'])."><strong>".$v['parameter_name']."</strong></a>",
                              'parameter_type' =>  "<a href=".set_url('parameter/parameter_view/'.$v['parameter_ID'])."><strong>".$v['parameter_name']."</strong></a>",
                              'actions' =>  "<a href=".set_url('parameter/parameter_view/'.$v['parameter_ID'])."><strong>".$v['parameter_name']."</strong></a>" 
    
                        );
                    }
                }
                /**
                 * draw,recordTotal,recordsFiltered is required for pagination and info.
                 */
                $results = array(
                    "draw" => $this->input->get('draw'),
                    "recordsTotal" => count($data),
                    "recordsFiltered" => $count,
                    "data" => $data 
                );
    
                echo json_encode($results);
            } else {
                /** this will load by default with no data for datatable
                 *  we will load data in table through datatable ajax call
                 */
                $this->site->view('parameter', $data);
            }
        }
    

    查看

       <table id="parameter" class="listdata table table-bordered table-striped table-hover">
      <thead>
        <tr>
          <th class="text-nowrap">Parameter</th>
          <th class="text-nowrap">Method</th>
          <th class="text-nowrap">Type</th>
          <th class="text-nowrap">Action</th>
        </tr>
      </thead>
      <tbody>
        /** tbody will be empty by default. **/
      </tbody>
      <tfoot>
        <tr>
          <th class="text-nowrap">Parameter</th>
          <th class="text-nowrap">Method</th>
          <th class="text-nowrap">Type</th>
          <th class="text-nowrap">Action</th>
        </tr>
      </tfoot>
    </table>
    

    <强>脚本

     <script>
            $(document).ready(function() {
                $('#example').DataTable({
                    url: '<?php base_url(); ?>controllerName/index',
                    processing: true,
                    serverSide: true,
                    paging: true,
                    searching: true,
                    ordering: true,
                    order: [[0, "asc"]],
                    scrollX: true,
                    scroller: true,
                    columns: [{data: "parameter"}, {data: "method"}, {data: "parameter_type"}, {data: "action"}]
                    /** this will create datatable with above column data **/
                });
            });
        </script>
    

    如果您想使用某些第三方库check this。 对于您的模型查询,您可以在this post中提及自定义。

答案 1 :(得分:0)

您可以查看article。虽然我使用原始php编写了它,但你可以通过使用ssp类创建一个单独的库来轻松实现它。可以创建这种类型的链接。

答案 2 :(得分:0)

您可以尝试使用我的代码,这对我来说很好。

控制器代码

public function showFeeCode()
{
    $data = $this->fmodel->fetchAllData('*','fee_assign',array());
    if (is_array($data) || is_object($data))
    {
        foreach ($data as $key => $value) {
            $button = "";
            $button .= "<button class='btn btn-success fa fa-pencil' onclick='editFunction(".$value['id'].")' data-toggle='tooltip' title='Edit Details'></button> ";
            $result['data'][$key] = array(
                    $value['feegroup'],
                    $value['name'],
                    $button
                     );
        }
    }
    echo json_encode($result);
}

模式代码

public function fetchAllData($data,$tablename,$where)
    {
        $query = $this -> db 
                        ->where($where)
                        -> get($tablename);

    if($query->num_rows() > 0){
            return $query->result_array();
        }
        else{
            return array('error');
        }
    }

查看代码(表)

<table id="myTable" class="table display">
                      <thead class="alert alert-danger">
                          <tr>
                              <th>Fee Type</th>
                              <th>Fee Code</th>
                              <th>Action</th>
                          </tr>
                      </thead>
                  </table>

ajax代码以获取ajax代码在视图页面中接收的数据。

$(document).ready(function() {
  $('#myTable').dataTable( {
        "ajax":"<?= base_url('Fee/showFeeCode'); ?>",
        'order':[],
    });
  });

如果您要将一些参数传递给控制器​​,则可以通过ajax传递它

 $(document).ready(function() {
var id = 4;
  $('#myTable').dataTable( {
        "ajax":"<?= base_url('Fee/showFeeCode'); ?>/"+id,
        'order':[],
    });
  });

您可以在将参数传递到控制器功能的帮助下接收此ID。