Php Datatables使用codeigniter连接表搜索和排序

我按照步骤学习使用codeigniter的数据表。但是我在连接两个表时遇到了一些错误 在数据表中使用搜索。这是我的错误

正如我在AJAX错误中看到的，解决方案是在网络请求浏览器中搜索查找错误服务器。我得到500个内部服务器错误。这是我复制的故障响应体

错误号码：42000/1064

您的SQL语法有错误；查看与您的MySQL服务器版本相对应的手册，以了解使用类似“%c%”ESCAPE！“的near'as>

nm_-propensi

的正确语法按第7行的id_kota下单

错误在于我通过

像

那样为datatables查询列表数据

这是我创建数据表查询搜索的模型

var $column = array('k.id_kota','k.nm_kota', 'p.nm_propinsi as nm_propinsi'); //set column field database for order and search
var $order = array('id_kota' => 'desc'); // default order 
function get_datatables(){
  $this->_get_datatables_query();
  if($_POST['length'] != -1)
  $this->db->limit($_POST['length'], $_POST['start']);
  $query = $this->db->get();
  return $query->result();
}
private function _get_datatables_query(){
  
  $this->db->from('kota as k');
  $this->db->join('propinsi as p', 'p.id_propinsi = k.id_propinsi');

  $i = 0;

  foreach ($this->column as $item) // loop column 
  {
     if($_POST['search']['value']) // if datatable send POST for search
     {
        
        if($i===0) // first loop
        {
           $this->db->group_start(); // open bracket. query Where with OR clause better with bracket. because maybe can combine with other WHERE with AND. 
           $this->db->like($item, $_POST['search']['value']);
        }
        else
        {
           $this->db->or_like($item, $_POST['search']['value']);
        }

        if(count($this->column) - 1 == $i) //last loop
           $this->db->group_end(); //close bracket
     }
     $column[$i] = $item; // set column array variable to order processing
     $i++;
  }
  
  if(isset($_POST['order'])) // here order processing
  {
     $this->db->order_by($column[$_POST['order']['0']['column']], $_POST['order']['0']['dir']);
  } 
  else if(isset($this->order))
  {
     $order = $this->order;
     $this->db->order_by(key($order), $order[key($order)]);
  }
}

我的函数控制器用于获取AJAX JSON

public function list_kota(){
    $this->load->model("kota_model");
    $list = $this->kota_model->get_datatables();
    $data = array();
    $no = $_POST['start'];
    foreach ($list as $ko) {
        $no++;
        $row = array();
        $row[] = $ko->id_kota;
        $row[] = $ko->nm_kota;
        $row[] = $ko->nm_propinsi;

        //add html for action
        $row[] = '<a class="btn btn-sm btn-primary" href="javascript:void()" title="Edit" onclick="edit_kota('."'".$ko->id_kota."'".')"><i class="glyphicon glyphicon-pencil"></i> Edit</a>
              <a class="btn btn-sm btn-danger" href="javascript:void()" title="Hapus" onclick="delete_kota('."'".$ko->id_kota."'".')"><i class="glyphicon glyphicon-trash"></i> Delete</a>';
    
        $data[] = $row;
    }

    $output = array(
        "draw" => $_POST['draw'],
        "recordsTotal" => $this->kota_model->count_all(),
        "recordsFiltered" => $this->kota_model->count_filtered(),
        "data" => $data,
        );
    //output to json format
    echo json_encode($output);
}

public function list_kota（）{
$this->load->model（“kota_model”）；
$list=$this->kota_model->get_datatables（）；
$data=array（）；
$no=$_POST['start']；
foreach（$ko）{
$no++；
$row=array（）；
$row[]=$ko->id\u kota；
$row[]=$ko->nm_kota；
$row[]=$ko->nm_propinsi；
//添加用于操作的html
$row[]='
';
$data[]=$row；
}
$output=array(
“draw”=>$\u POST['draw']，
“recordsTotal”=>this->kota_model->count_all（），
“recordsFiltered”=>this->kota_model->count_filtered（），
“数据”=>$data，
);
//输出为json格式
echo json_编码（$output）；
}

我现在该怎么办？有什么建议吗？

为什么不去图书馆？ 并与jquery.dataTables.columnFilter.js结合使用

示例视图

控制器：

    function fnDataJson()
{
    $this->load->library('datatables');
    $this->datatables->select('id,first_name,last_name,position,email,office,salary');
    $this->datatables->from('datatables_demo');

    echo $this->datatables->generate();
}

看法

//HTML
身份证件
名字
姓
位置
电子邮件
办公室
薪水
身份证件
名字
姓
位置
电子邮件
办公室
薪水
//Javascript
oTable=$（'#tableEmployee'）。数据表({
“处理”：对，
“服务器端”：正确，
“sAjaxSource”：“/md_employee/fndatason”，
“列”：[
{'sName'：'id'}，{'sName'：'first_name'}，{'sName'：'last_name'}，{'sName'：'position'}，{'sName'：'email'}，{'sName'：'office'}，{'sName'：'salary'}
],
“fnServerData”：函数（sSource、aoData、fnServerData回调）{
$.ajax（{
“数据类型”：“json”，
'type'：'POST'，
“url”：sSource，
“数据”：aoData，
“成功”：fn回调
} );
},      
“fnRowCallback”：函数（nRow、aData、iDisplayIndex、DisplayIndexFull）{
var page=this.fnPagingInfo（）.iPage；
var length=this.fnPagingInfo（）.ilelength；
var索引=（页面*长度+（iDisplayIndex+1））；
//警报（‘现在在页面上’+索引）；
$（'td:eq（0）”，nRow.html（索引+“”）；
}
}).columnFilter（{aoColumns:[
无效的
{type:“text”，bRegex:true}，
{type:“text”，bRegex:true}，
{type:“text”，bRegex:true}，
{type:“text”，bRegex:true}，
{type:“text”，bRegex:true}，
{键入：“文本”，bRegex:true}
]});

根据您的型号，您可以如下所示对其进行修改

private function _get_datatables_query($term=''){ //term is value of $_REQUEST['search']['value']
    $column = array('k.id_kota','k.nm_kota', 'p.nm_propinsi');
    $this->db->select('k.id_kota, k.nm_kota, p.nm_propinsi');
    $this->db->from('kota as k');
    $this->db->join('propinsi as p', 'p.id_propinsi = k.id_propinsi','left');
    $this->db->like('k.id_kota', $term);
    $this->db->or_like('k.nm_kota', $term);
    $this->db->or_like('p.nm_propinsi', $term);
    if(isset($_REQUEST['order'])) // here order processing
    {
       $this->db->order_by($column[$_REQUEST['order']['0']['column']], $_REQUEST['order']['0']['dir']);
    } 
    else if(isset($this->order))
    {
       $order = $this->order;
       $this->db->order_by(key($order), $order[key($order)]);
    }
}

function get_datatables(){
  $term = $_REQUEST['search']['value'];   
  $this->_get_datatables_query($term);
  if($_REQUEST['length'] != -1)
  $this->db->limit($_REQUEST['length'], $_REQUEST['start']);
  $query = $this->db->get();
  return $query->result(); 
}

function count_filtered(){
  $term = $_REQUEST['search']['value']; 
  $this->_get_datatables_query($term);
  $query = $this->db->get();
  return $query->num_rows();  
}

public function count_all(){
  $this->db->from($this->table);
  return $this->db->count_all_results();  
}

// HTML
<table id="tableEmployee" class="table datares">
    <thead>
        <tr>
            <th>id</th>
            <th>first_name</th>
            <th>last_name</th>
            <th>position</th>
            <th>email</th>
            <th>office</th>
            <th>salary</th>
        </tr>
    </thead>
    <tbody>
    </tbody>
    <tfoot>
        <tr>
            <th>id</th>
            <th>first_name</th>
            <th>last_name</th>
            <th>position</th>
            <th>email</th>
            <th>office</th>
            <th>salary</th>
        </tr>
    </tfoot>
</table>


// Javascript
    oTable = $('#tableEmployee').dataTable({
        "processing": true,
        "serverSide": true,
        "sAjaxSource": "<?php echo site_url();?>/md_employee/fnDataJson",
        "aoColumns": [ 
            {'sName' : 'id'},{'sName' : 'first_name'},{'sName' : 'last_name'},{'sName' : 'position'},{'sName' : 'email'},{'sName' : 'office'},{'sName' : 'salary'} 
        ],
        "fnServerData": function( sSource, aoData, fnCallback ) {
            $.ajax( {
                'dataType': 'json',
                'type'    : 'POST',
                'url'     : sSource,
                'data'    : aoData,
                'success' : fnCallback
            } );
        },      
        "fnRowCallback": function (nRow, aData, iDisplayIndex, DisplayIndexFull) {
          var page      = this.fnPagingInfo().iPage;
          var lengt     = this.fnPagingInfo().iLength;
          var index     = (page * lengt + (iDisplayIndex +1));
          //alert( 'Now on page '+index );
          $('td:eq(0)', nRow).html(index+'<input type="hidden" id="idEmployee'+iDisplayIndex+'" value="'+aData[0]+'" >');
        }
    }).columnFilter({ aoColumns: [
            null,
            { type: "text", bRegex:true },
            { type: "text", bRegex:true },
            { type: "text", bRegex:true },
            { type: "text", bRegex:true },
            { type: "text", bRegex:true },
            { type: "text", bRegex:true }
        ]});

private function _get_datatables_query($term=''){ //term is value of $_REQUEST['search']['value']
    $column = array('k.id_kota','k.nm_kota', 'p.nm_propinsi');
    $this->db->select('k.id_kota, k.nm_kota, p.nm_propinsi');
    $this->db->from('kota as k');
    $this->db->join('propinsi as p', 'p.id_propinsi = k.id_propinsi','left');
    $this->db->like('k.id_kota', $term);
    $this->db->or_like('k.nm_kota', $term);
    $this->db->or_like('p.nm_propinsi', $term);
    if(isset($_REQUEST['order'])) // here order processing
    {
       $this->db->order_by($column[$_REQUEST['order']['0']['column']], $_REQUEST['order']['0']['dir']);
    } 
    else if(isset($this->order))
    {
       $order = $this->order;
       $this->db->order_by(key($order), $order[key($order)]);
    }
}

function get_datatables(){
  $term = $_REQUEST['search']['value'];   
  $this->_get_datatables_query($term);
  if($_REQUEST['length'] != -1)
  $this->db->limit($_REQUEST['length'], $_REQUEST['start']);
  $query = $this->db->get();
  return $query->result(); 
}

function count_filtered(){
  $term = $_REQUEST['search']['value']; 
  $this->_get_datatables_query($term);
  $query = $this->db->get();
  return $query->num_rows();  
}

public function count_all(){
  $this->db->from($this->table);
  return $this->db->count_all_results();  
}