PHP CODEIGNITER UPDATE問題

Question

我無法更新CodeIgniter中的記錄中的數據。

我已經發布代碼如下： -

//控制器 //RESERVATION.php

<?php 
defined('BASEPATH') OR exit('No direct script access allowed'); 

class Reservation extends CI_Controller { 

    public function __construct() 
    { 
     parent::__construct(); 
     $this->load->model('reservation_model','reservation'); 
    } 

    public function index() 
    { 
     $this->load->helper('url'); 
     $this->load->view('manage_reservation'); 
    } 
    public function reservationview() 
    { 
     $this->load->helper('url'); 
     $this->load->view('view_reservation'); 
    } 

    public function ajax_list() 
    { 
     $list = $this->reservation->get_datatables(); 
     $data = array(); 
     $no = $_POST['start']; 
     foreach ($list as $reservation) { 
      $no++; 
      $row = array(); 
      $row[] = $reservation->id; 
      $row[] = $reservation->dateReserved; 
      $row[] = $reservation->requestedBy; 
      $row[] = $reservation->facility; 
      $row[] = $reservation->dateFrom; 
      $row[] = $reservation->dateTo; 
      $row[] = $reservation->timeStart; 
      $row[] = $reservation->timeEnd; 
      $row[] = $reservation->status; 
      $row[] = $reservation->items; 
      $row[] = $reservation->purpose; 

      //add html for action 
      $row[] = '<a class="btn btn-sm btn-primary" href="javascript:void(0)" title="Edit" onclick="edit_reservation('."'".$reservation->id."'".')"><i class="glyphicon glyphicon-pencil"></i></a> 
        <a class="btn btn-sm btn-danger" href="javascript:void(0)" title="Hapus" onclick="delete_reservation('."'".$reservation->id."'".')"><i class="glyphicon glyphicon-trash"></i></a>'; 

      $data[] = $row; 
     } 

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

    public function ajax_edit($id) 
    { 

     $data = $this->reservation->get_by_id($id); 

     $data->dateFrom = ($data->dateFrom == '0000-00-00') ? '' : $data->dateFrom; 
     $data->dateTo = ($data->dateTo == '0000-00-00') ? '' : $data->dateTo;  // if 0000-00-00 set tu empty for datepicker compatibility 
     echo json_encode($data); 

    } 

    public function ajax_add() 
    { 
     $this->_validate(); 
     $data = array(
       'id' => $this->input->post('id'), 
       'dateReserved' => $this->input->post('dateReserved'), 
       'requestedBy' => $this->input->post('requestedBy'), 
       'facility' => $this->input->post('facility'), 
       'dateFrom' => $this->input->post('dateFrom'), 
       'dateTo' => $this->input->post('dateTo'), 
       'timeStart' => $this->input->post('timeStart'), 
       'timeEnd' => $this->input->post('timeEnd'), 
       'status' => $this->input->post('status'), 
       'items' => $this->input->post('items'), 
       'purpose' => $this->input->post('purpose'), 

      ); 
     $insert = $this->reservation->save($data); 
     echo json_encode(array("status" => TRUE)); 
    } 

    public function ajax_update() 
    { 
     $this->_validate(); 
     $data = array(

       'id' => $this->input->post('id'), 
       'dateReserved' => $this->input->post('dateReserved'), 
       'requestedBy' => $this->input->post('requestedBy'), 
       'facility' => $this->input->post('facility'), 
       'dateFrom' => $this->input->post('dateFrom'), 
       'dateTo' => $this->input->post('dateTo'), 
       'timeStart' => $this->input->post('timeStart'), 
       'timeEnd' => $this->input->post('timeEnd'), 
       'status' => $this->input->post('status'), 
       'items' => $this->input->post('items'), 
       'purpose' => $this->input->post('purpose'), 



      ); 
     $this->reservation->update(array('id' => $this->input->post('id')), $data); 
     echo json_encode(array("status" => TRUE)); 
    } 

    public function ajax_delete($id) 
    { 
     $this->reservation->delete_by_id($id); 
     echo json_encode(array("status" => TRUE)); 
    } 


    private function _validate() 
    { 
     $data = array(); 
     $data['error_string'] = array(); 
     $data['inputerror'] = array(); 
     $data['status'] = TRUE; 

     if($this->input->post('requestedBy') == '') 
     { 
      $data['inputerror'][] = 'requestedBy'; 
      $data['error_string'][] = 'Requested Name is required*'; 
      $data['status'] = FALSE; 
     } 

     if($this->input->post('dateFrom') == '') 
     { 
      $data['inputerror'][] = 'dateFrom'; 
      $data['error_string'][] = 'Please Select a Date*'; 
      $data['status'] = FALSE; 
     } 

     if($this->input->post('dateTo') == '') 
     { 
      $data['inputerror'][] = 'dateTo'; 
      $data['error_string'][] = 'Please Select a Date*'; 
      $data['status'] = FALSE; 
     } 

     if($this->input->post('timeStart') == '') 
     { 
      $data['inputerror'][] = 'timeStart'; 
      $data['error_string'][] = 'Please select a Time*'; 
      $data['status'] = FALSE; 
     } 

     if($this->input->post('timeEnd') == '') 
     { 
      $data['inputerror'][] = 'timeEnd'; 
      $data['error_string'][] = 'Please select a Time*'; 
      $data['status'] = FALSE; 
     } 

     if($this->input->post('status') == '') 
     { 
      $data['inputerror'][] = 'status'; 
      $data['error_string'][] = 'Please Indicate Status*'; 
      $data['status'] = FALSE; 
     } 

     if($this->input->post('items') == '') 
     { 
      $data['inputerror'][] = 'items'; 
      $data['error_string'][] = 'Please select an Item*'; 
      $data['status'] = FALSE; 
     } 

     if($this->input->post('purpose') == '') 
     { 
      $data['inputerror'][] = 'purpose'; 
      $data['error_string'][] = 'Please indicate a Purpose*'; 
      $data['status'] = FALSE; 
     } 

     if($data['status'] === FALSE) 
     { 
      echo json_encode($data); 
      exit(); 
     } 
    } 

} 

//模型 //Reservation_model.php

<?php 
    defined('BASEPATH') OR exit('No direct script access allowed'); 

    class Reservation_model extends CI_Model { 

     var $table = 'tblreservation'; 
     var $column_order = array('id','dateReserved','requestedBy','facility','dateFrom','dateTo','timeStart','timeEnd','status','items','purpose',null); //set column field database for datatable orderable 
     var $column_search = array('id','dateReserved','requestedBy','facility','dateFrom','dateTo','timeStart','timeEnd','status','items','purpose'); //set column field database for datatable searchable just firstname , lastname , address are searchable 

     var $order = array('id' => 'desc'); // default order 

     public function __construct() 
     { 
      parent::__construct(); 
      $this->load->database(); 
     } 

     private function _get_datatables_query() 
     { 

      $this->db->from($this->table); 

      $i = 0; 

      foreach ($this->column_search 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_search) - 1 == $i) //last loop 
         $this->db->group_end(); //close bracket 
       } 
       $i++; 
      } 

      if(isset($_POST['order'])) // here order processing 
      { 
       $this->db->order_by($this->column_order[$_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)]); 
      } 
     } 

     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(); 
     } 

     function count_filtered() 
     { 
      $this->_get_datatables_query(); 
      $query = $this->db->get(); 
      return $query->num_rows(); 
     } 

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

     public function get_by_id($id) 
     { 
      $this->db->from($this->table); 
      $this->db->where('id',$id); 
      $query = $this->db->get(); 

      return $query->row(); 
     } 

     public function save($data) 
     { 
      $this->db->insert($this->table, $data); 
      return $this->db->insert_id(); 
     } 

     public function update($where, $data) 
     { 
      $this->db->update($this->table, $data, $where); 
      return $this->db->affected_rows(); 
     } 

     public function delete_by_id($id) 
     { 
      $this->db->where('id', $id); 
      $this->db->delete($this->table); 
     } 


} 

VIEW = manage_re servation.php =保存功能

function save() 
{ 
    $('#btnSave').text('saving...'); //change button text 
    $('#btnSave').attr('disabled',true); //set button disable 
    var url; 

    if(save_method == 'add') { 
     url = "<?php echo site_url('reservation/ajax_add')?>"; 
    } else { 
     url = "<?php echo site_url('reservation/ajax_update')?>"; 
    } 

    // ajax adding data to database 
    $.ajax({ 
     url : url, 
     type: "POST", 
     data: $('#form').serialize(), 
     dataType: "JSON", 
     success: function(data) 
     { 

      if(data.status) //if success close modal and reload ajax table 
      { 
       $('#modal_form').modal('hide'); 
       reload_table(); 
      } 
      else 
      { 
       for (var i = 0; i < data.inputerror.length; i++) 
       { 
        $('[name="'+data.inputerror[i]+'"]').parent().parent().addClass('has-error'); //select parent twice to select div form-group class and add has-error class 
        $('[name="'+data.inputerror[i]+'"]').next().text(data.error_string[i]); //select span help-block class set text error string 
       } 
      } 
      $('#btnSave').text('save'); //change button text 
      $('#btnSave').attr('disabled',false); //set button enable 


     }, 
     error: function (jqXHR, textStatus, errorThrown) 
     { 
      alert('Error adding/update data'); 
      $('#btnSave').text('save'); //change button text 
      $('#btnSave').attr('disabled',false); //set button enable 

     } 
    }); 
} 

新手代碼點火器的任何幫助將不勝感激:)

Answer 1

嘗試

public function update($where, $data){ 
    $this->db->where($where); 
    $this->db->set($data); //array of new data 
    $this->db->update($this->table); 
    return $this->db->affected_rows(); 
} 

Answer 2

請更新語句後，打印您的查詢，這將幫助您知道您的查詢是否正確。

$this->db->last_query(); 

Answer 3

請檢查模型查詢

控制器：

$update_id = array(); 
$update_id['id'] = $this->input->post('id'); 
$data = array(
       'id' => $this->input->post('id'), 
       'dateReserved' => $this->input->post('dateReserved'), 
       'requestedBy' => $this->input->post('requestedBy'), 
       'facility' => $this->input->post('facility'), 
       'dateFrom' => $this->input->post('dateFrom'), 
       'dateTo' => $this->input->post('dateTo'), 
       'timeStart' => $this->input->post('timeStart'), 
       'timeEnd' => $this->input->post('timeEnd'), 
       'status' => $this->input->post('status'), 
       'items' => $this->input->post('items'), 
       'purpose' => $this->input->post('purpose'), 
      ); 

$result = $this->reservation->update('table_name',$update_id, $data); 

型號：

$this->db->where($where); 
$this->db->update($table, $data); 
return $this->db->affected_rows();