遇到PHP错误严重性：通知消息：未定义的属性：Site :: $ site_model [英] A PHP Error was encountered Severity: Notice Message: Undefined property: Site::$site_model

问题描述

遇到PHP错误

A PHP Error was encountered

严重性：通知

消息：未定义的属性：Site :: $ site_model

Message: Undefined property: Site::$site_model

文件名：controllers / site.php

Filename: controllers/site.php

行号：13

站点控制器site.php
致命错误：在
中的非对象上调用成员函数delete_row（）C：\xampp＼第13行上的 htdocs\login\application\controllers onsite.php

Site Controller site.php Fatal error: Call to a member function delete_row() on a non-object in C:\xampp\htdocs\login\application\controllers\site.php on line 13

我的 controller >-> Site.php

My controller->Site.php

<?php 
class Site extends CI_Controller{
    function __construct(){
      parent::__construct();
      $this->is_logged_in();

    }
    function delete(){
      $this->site_model->delete_row();
      $this->index();
    }
    function members_area(){
      $this->load->model('patient_model');
      $data['records'] = $this->patient_model->getAll();
      $this->load->view('members_area', $data);
    }
    function add(){
       $data['main_content'] = 'patient_form';
       $this->load->view('includes/template',$data);
    }
    function is_logged_in(){
       $is_logged_in = $this->session->userdata('is_logged_in');
        if(!isset($is_logged_in) || $is_logged_in != true){
          echo 'Your don\'t have permission to access this page. <a href="../login">Login</a>';
          die();
        }
    }
} 

---

我的模型-> site_model.php

---

My model -> site_model.php

class Site_model extends CI_Model{
    function get_records(){
          $query = $this->db->get('patient');
           return $query->result();
    }
    function delete_row(){
          $this->db->where('id', $this->uri->segment(3));
          $this->db->delete('patient');
    }
    function create_member(){
          $new_member_insert_data = array(
          'fname' => $this->input->post('fname'),
          'lname' => $this->input->post('lname'),
          'email' => $this->input->post('email'),
          'address' => $this->input->post('address'),
          'contact' => $this->input->post('contact'),
          'remarks' => $this->input->post('remarks')
    );
    $insert = $this->db->insert('patient', $new_member_insert_data);
    return $insert;
    }
}

---

我的视图-> member_area.php

---

My view-> members_area.php

<?php $this->load->view('includes/header');?>

<div id="main">
Welcome Back, <u><?php echo $this->session->userdata('username'); ?>!</u>
<h3>Vision Eye Medical Center Patient Information</h3>

<div id="overflow">
  <table class="features-table">

        <thead>
          <tr>
            <td>Patient Name</td>
            <td>Email</td>
            <td>Address</td>
            <td>Contact</td>
            <td>Remarks</td>
            <td>Action</td>
          </tr>
        </thead>

        <tfoot>
          <tr>
            <td></td>
            <td>-</td>
            <td>-</td>
            <td>-</td>
            <td>-</td>
            <td>-</td>
          </tr>
        </tfoot>          
        <tbody>
        <?php foreach($records as $row): ?>
          <tr>
            <td><?php echo $row->fname;?>
              <?php echo $row->lname;?>
            </td>

            <td><?php echo $row->email;?></td>
            <td><?php echo $row->address;?></td>
            <td><?php echo $row->contact;?></td>      
            <td><?php echo $row->remarks;?></td>      
            <td>View|<?php echo anchor("site/delete/$row->id",'delete');?></td>     
          </tr>

          <?php endforeach; ?>
        </tbody>
    </table>

 </div>   
  <?php echo form_open();?>
     <?php echo anchor('patient/add', 'Add new Data'); ?><?php echo anchor('login/logout', 'Logout'); ?><br>
    <?php echo form_close();?>

</div>
<?php $this->load->view('includes/footer');?>

推荐答案

似乎您没有加载站点模型您可以在代码中的任何位置执行以下操作：

It seems you are not loading your "site model" anywhere in code you can do following:

1. 将其自动加载到自动加载文件中。


2. 加载模型在控制器的构造函数中，或者使用此行在需要时加载 $ this-> load-> model（'site_model'）;

1. autoload it in autoload file.
2. load your model either in constructor of controller, or load it whenever needed by using this line $this->load->model('site_model');

更多信息，请参见此处。

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