Question

您好我尝试在codeigniter上进行基本视图编辑和删除

即时通过使用customer / index.php上的表来显示来自db的所有客户数据并且它可以工作，但是当我尝试打开视图函数来查看具有$ id作为参数的特定客户时，仅显示第2个数据，第2个，第3等显示404。

这是我的问题

https://imgur.com/m3TjHMn

https://imgur.com/HKah8Mi

https://imgur.com/2ig3h1z

https://imgur.com/oVVv2LU

这是我的数据库结构的ss

https://imgur.com/0v0Mx4q

customers / index.php

<h2 align="center"><?= $title ?></br></h2>
<table table table-hover width="100%" border="1">
<thead>
<tr class="table-danger">   
    <th scope="col">ID</th>
    <th scope="col">Name</th>
    <th scope="col">Company</th>
    <th scope="col">Company Address</th>
    <th scope="col">Phone</th>
    <th scope="col">Email</th>
    <th scope="col">Action</th>
</tr>
    </thead>
<?php foreach($customers as $row): ?>
<tbody>
<tr class="table-light">   
    <th scope="row"><?php echo $row['id']; ?></th>
    <td><?php echo $row['name']; ?></td>
    <td><?php echo $row['company']; ?></td>
    <td><?php echo $row['address']; ?></td>
    <td><?php echo $row['phone']; ?></td>
    <td><?php echo $row['email']; ?></td>
    <td align="justify">
    <a class="btn btn-outline-danger" href="<?php echo site_url('/customers/view/'.$row['id']); ?>">Edit/Delete</a>
    </p>

</tr>
<?php endforeach; ?>
</tbody>
</table>
<p align="center"><a href="<?php echo site_url('/customers/insert');?>"><button type="submit" class="btn btn-danger" >Insert</button></a></p>

控制器/ Customers.php

    class Customers extends CI_Controller{
        public function index(){
            $data['title'] = 'Customers';

            $data['customers'] = $this->Cust_model->get_customers();

            $this->load->view('templates/header');
            $this->load->view('customers/index', $data);
            $this->load->view('templates/footer');

        }

        public function view($id = NULL){


            $data['customer'] = $this->Cust_model->get_customers($id);

            if(empty($data['customer'])){
                show_404();
            }

            $data['title'] = 'View Customer';

            $this->load->view('templates/header');
            $this->load->view('customers/view', $data);
            $this->load->view('templates/footer');
        }

        public function insert(){
            $data['title'] = 'Add New Customer';

            $this->form_validation->set_rules('name','Name', 'required');
            $this->form_validation->set_rules('company','Company', 'required');
            $this->form_validation->set_rules('address','Address', 'required');
            $this->form_validation->set_rules('email','Email', 'required');
            $this->form_validation->set_rules('phone','Phone', 'required');

            if($this->form_validation->run() === FALSE){
                $this->load->view('templates/header');
                $this->load->view('customers/insert', $data);
                $this->load->view('templates/footer');
            } else {
                $this->Cust_model->insert_customer();
                redirect('customers');

            }
        }

        public function delete($id){
            $this->Cust_model->delete_cust($id);
            redirect('customers');
        }
public function edit($id = NULL){

            $data['customer'] = $this->Cust_model->get_customers($id);

            if($id == NULL){
                $id = $this->uri-segment(4);
            }

            $data['title'] = 'Edit Customer';

            $this->load->view('templates/header');
            $this->load->view('customers/edit', $data);
            $this->load->view('templates/footer');

        }

模型/ Cust_model.php

<?php
    class Cust_model extends CI_Model{
        public function _construc(){
            $this->load->database();

        }

        public function get_customers($name = FALSE){
            if($name === FALSE){
                $query = $this->db->get('cust_table');
                return $query->result_array();
            }
            $query = $this->db->get_where('cust_table', array('name', $name));
            return $query->row_array();
        }

        public function insert_customer(){

            $data = array(
                'name' => $this->input->post('name'),
                'company' => $this->input->post('company'),
                'address' => $this->input->post('address'),
                'phone' => $this->input->post('phone'),
                'email' => $this->input->post('email'),

            );

            return $this->db->insert('cust_table', $data);
        }

        public function delete_cust($id){
            $this->db->where('id', $id);
            $this->db->delete('cust_table');
            return true;
        }

        public function edit($id, $data){
            $this->db->where('id', $id);
            $result = $this->db->update('cust_table', $data);

            if($result){
                return $id;
            }else{
                return false;
            }
        }
    }

客户/ view.php

<h2 align="center"><?= $title ?></br></h2>
<table table table-hover width="100%" border="1">
<thead>
<tr class="table-danger">   
    <th scope="col">ID</th>
    <th scope="col">Name</th>
    <th scope="col">Company</th>
    <th scope="col">Company Address</th>
    <th scope="col">Phone</th>
    <th scope="col">Email</th>

</tr>
    </thead>
<tbody>
<tr class="table-light">   
    <th scope="row"><?php echo $customer['id']; ?></th>
    <td><?php echo $customer['name']; ?></td>
    <td><?php echo $customer['company']; ?></td>
    <td><?php echo $customer['address']; ?></td>
    <td><?php echo $customer['phone']; ?></td>
    <td><?php echo $customer['email']; ?></td>

</tr>
</tbody>
</table>
<p align="center"><br><a class="btn btn-outline-danger" href="<?php echo site_url('/customers/edit/'.$customer['id']); ?>">Edit</a>
<a class="btn btn-danger" href="<?php echo site_url('/customers/delete/'.$customer['id']); ?>">Delete</a>

输入工作正常，当我尝试将按钮删除在index.php上时删除工作正常

请帮助我，谢谢

Answer 1

当您传递ID时，您需要使用where函数get_customers()中的id列而不是名称。此外，似乎数组未正确声明应该是array('id' => $id)而不是array('id', $id)。

为了清晰起见，我更新了该功能，将$name变量更改为$id。

    public function get_customers($id = null){
        if(is_null($id)){
            $query = $this->db->get('cust_table');
            return $query->result_array();
        }
        $query = $this->db->get_where('cust_table', array('id' => $id));
        return $query->row_array();
    }

我还建议使用flash消息并将用户重定向到索引函数，如果get_customers()的返回结果为空或者使用show_error('user does not exist', 400)作为404，则表示用户不存在让某些人感到困惑。

查看功能在代码点火器上无法正常工作

1 个答案: