Question

我正在使用Codeigniter和服务器端数据表。我在分页时遇到问题。我有2万条记录，每页显示10条记录。

但是问题是，正在显示分页，但是我也在页面上获得了所有2万条记录。

查看此分页截图

第二个问题是，我在数据库中的记录少于10个。它显示在我的视图上，但要花很多时间才能显示。有什么方法可以显示快速记录？

控制器

public function displayrecords(){
  $order_list=$this->System_model->uploadedList();

 // Datatables Variables
    $draw = intval($this->input->get("draw"));
    $start = intval($this->input->get("start"));
    $length = intval($this->input->get("length"));
    $data['draw'] = 1;
    $data['recordsTotal'] = count($order_list);
    $data['recordsFiltered'] = count($order_list);
    $data['data'] = [];
    foreach ($order_list as $key => $row) 
    {
        $arr_result = array(
                    "id" =>"<input name='select_all[]' type='checkbox' class='lead_ids customCheckbox' id='".$row->u_id."'>",
                    "companyname" => $row->u_companyname,
                    "customername" => $row->u_firstname.' '.$row->u_lastname,
                    "mobileno" => $row->u_mobileno,
                    "action" => "<a href=''>click</a>"
        );

        $data['data'][] = $arr_result;

      }
      //print_r($arr_result);
    echo json_encode($data);
    exit;
    }

模型

public function uploadedList(){

    $this->db->select('*');
    $this->db->from('tbl_Upload');
    $this->db->where('is_active', 0);
    $query = $this->db->get();
    return $query->result();
}

JS

$('#uploadedLead-list').DataTable( {
        language: {
        sLengthMenu: "Show _MENU_",// remove entries text
        searchPlaceholder: "Search",
        emptyTable:     "No record found",
        search:""
      },
        "ordering": false,// remove sorting effect from header 
        "processing": true,
        "serverSide": true,
        "scrollX": true,
        "bInfo" : false,
        "pageLength": 10,
        "ajax": {
            "url" : baseUrl + "/System_control/displayrecords",
            "type" : "POST"
             // "dataSrc": ""
        },
       "columns": [
                { "data": "id","className": "reg_bg" },
                { "data": "companyname" },
                { "data": "customername" },
                { "data": "mobileno" },
                { "data": "action" }
            ]

    });

您能帮我解决这个问题吗？

Answer 1

您的方法应如下所示

CONTROLLER

public function displayrecords() {

    // Datatables Variables
    $draw = intval($this->input->get("draw"));
    $start = intval($this->input->get("start"));
    $length = intval($this->input->get("length"));

    // Get total records
    $total_records = $this->System_model->getTotalCount();

    // These params should be used with limit query [LIMIT 0, 10 for first page, LIMIT 10, 10 for second page and so on]
    $order_list = $this->System_model->uploadedList($start, $length);

    $data['draw'] = $draw;
    $data['recordsTotal'] = $total_records;
    $data['recordsFiltered'] = $total_records;

    // Prepare data to output
    $data['data'] = [];
    foreach ($order_list as $key => $row) {
        $arr_result = array(
                    "id" =>"<input name='select_all[]' type='checkbox' class='lead_ids customCheckbox' id='".$row->u_id."'>",
                    "companyname" => $row->u_companyname,
                    "customername" => $row->u_firstname.' '.$row->u_lastname,
                    "mobileno" => $row->u_mobileno,
                    "action" => "<a href=''>click</a>"
        );

        $data['data'][] = $arr_result;

    }

    // echo encoded json
    echo json_encode($data);
}

模型

public function uploadedList($length, $start) {
    $this->db->select('*');
    $this->db->from('tbl_Upload');
    $this->db->where('is_active', 0);
    $this->db->limit($length, $start);
    $query = $this->db->get();
    return $query->result();
}

public function getTotalCount() {
    return $this->db->count_all('tbl_Upload');
}

服务器端数据表的分页问题以及如何在视图上加载快速记录？

1 个答案: