Question

我无法更新CodeIgniter中记录中的数据。而不是更新它在数据库table中添加新记录.'hotelres_id'是我的表的主键。

我已经发布了以下代码： -

更新的控制器代码： -

function edit($id){
    $this->load->model('hotel_reservation','mb');
    $data['message'] = '';
    $data['object'] = $this->mb->find_by_id($id);

    if($data['object']){
        $this->form_validation->set_rules('roomno', 'Room Number', 'required|is_unique[hotel_reservation.roomno]');
        $this->form_validation->set_rules('checkin', 'Check In', 'required|is_unique[hotel_reservation.checkin]');
        $this->form_validation->set_rules('checkout', 'Check Out', 'required|is_unique[hotel_reservation.checkout]');

        if ($this->form_validation->run() == TRUE){
            $this->mb->eventreg_id = $_POST['hotelres_id'];
            $this->mb->eventreg_id = $_POST['eventreg_id'];
            $this->mb->eventhotel_id = $_POST['eventhotel_id'];
            $this->mb->roomno = $_POST['roomno'];
            $this->mb->checkin = $_POST['checkin'];
            $this->mb->checkout = $_POST['checkout'];
            $this->mb->comment = $_POST['comment'];
            $this->mb->update();
            $data['message'] = 'Details updated successfully';
            $data['object'] = $this->mb;
        }
        $this->load->view('core/hotel_reservation/edit',$data);
    }
    else{
        $data['message'] = 'No details available!! Fill It!!';  
        $this->load->view('core/hotel_reservation/save',$data);
    }
}

查看代码： -

<html>
    <head>
    <title>Hotel Reservation</title>
    </head>
    <body>
        <h2>Hotel Reservation</h2>
        <?php if(isset($message)&&$message!='') echo "<span class=\"message\">{$message}</span>"; ?>
        <form action="<?php echo site_url('core/hotel_re/edit/'.@$object->hotelres_id); ?>" method="POST" >
            <table class="formtable">

            <tr><td>hotelres_id</td><td><input type="text" name="hotelres_id" id="hotelres_id"  class="textbox" value="<?php echo @$object->hotelres_id; ?>"  readonly></td></tr>
            <tr><td>eventreg_id</td><td><input type="text" name="eventreg_id" class="textbox" value="<?php echo @$object->eventreg_id; ?>"  readonly></td></tr>
            <tr><td>eventhotel_id</td><td><input type="text" name="eventhotel_id" class="textbox" value="<?php echo @$object->eventhotel_id; ?>" readonly></td></tr>


            <tr><td>Room Number</td><td><input type="text" name="roomno"  value="<?php echo @$object->roomno; ?>"  class="textbox" ></td></tr>
            <tr><td>Check In</td><td><input type="text"  name="checkin" value="<?php echo @$object->checkin; ?>"  class="textbox"></td></tr>

            <tr><td>Check Out</td><td><input type="text" name="checkout" value="<?php echo @$object->checkout; ?>"  class="textbox"></td></tr>

            <tr><td>Comment</td><td><textarea type="text"  name="comment" value="<?php echo @$object->comment; ?>"  class="textarea" ></textarea></td></tr>
            <tr><td>&nbsp;</td><td><input type="submit" name="submit" value="Update" class="submitbutton"></td></tr>
        </table>
    </form>
    <span class="validation-errors"><?php echo validation_errors(); ?></span>
    </body>
</html>

型号代码： -

<?php
class hotel_reservation extends CI_Model{
    var $hotelres_id;
    var $eventreg_id;
    var $eventhotel_id;
    var $roomno;
    var $checkin;
    var $checkout;
    var $comment;

    static $tablename = 'hotel_reservation';
    static $tableid = 'hotelres_id';
    function find_by_id($id)
    {
        $tableid = self::$tableid;
        $resultset = $this->db->get_where(self::$tablename,array($tableid=>$id),1);
        if($resultset->num_rows()==1)
            return array_shift($resultset->result(get_class($this)));
        return false;
    }

    function find_all()
    {
        $resultset = $this->db->get(self::$tablename);
        return $resultset->result(get_class($this));
    }

    function save()
    {
        $tableid = self::$tableid;
        if(isset($this->$tableid)&&$this->$tableid!=''&&$this->$tableid!=0)
            $this->update();
        else
            $this->insert();
    }

    private function insert()
    {
        $this->db->insert(self::$tablename,$this);
    }

    function update()
    {
        $tableid = self::$tableid;
        $this->db->where($tableid,$this->$tableid);
        $this->db->update(self::$tablename,$this);
    }

    function delete()
    {
        $tableid = self::$tableid;
        $this->db->where($tableid,$this->$tableid);
        $this->db->delete(self::$tablename);
    }
}

Answer 1

错误就在这里!!

在您的控制器中，您已完成此操作...

        $this->mb->eventreg_id = $_POST['hotelres_id'];
        $this->mb->eventreg_id = $_POST['eventreg_id'];

这应该是这个

        $this->mb->hotelres_id = $_POST['hotelres_id'];
        $this->mb->eventreg_id = $_POST['eventreg_id'];

就像我说的那样，更新术语应该写成这样......

$this->db->where($tableid,$this->hotelres_id);

解决？

Answer 2

从我所看到的情况来看，我认为你的问题在于这一行：

$this->db->update(self::$tablename,$this);

因为你应该将更新函数传递给你的TB列和要更新的值的数组，你发送整个对象（$ this），还不发送tableid和tablename吗？

Answer 3

根据您的代码（$this->mb->update();），它正在调用 mb 模型。但是您已经为 hotel_reservation 模型提供了代码。可能会有一些不匹配。

无法使用Codeigniter更新数据库中的数据

3 个答案: