Question

我在CodeIgniter中创建了一个网站，我试图制作一个包含所有类别的菜单栏，当您点击某个类别时，它必须显示该类别中的所有产品但它没有真正起作用。

当我打开category.php视图而不是侧面菜单栏时，真的有很大的白色空白链接，什么都没有。此外，当我点击其中一个链接时，我收到一个错误。这是错误：

An Error Was Encountered

The URI you submitted has disallowed characters.

当我加载category.php视图时，这也是错误消息：

A PHP Error was encountered

Severity: Notice

Message: Trying to get property of non-object

Filename: views/allecadeaus.php

Line Number: 26

Backtrace:

File: /home/ubuntu/workspace/application/views/allecadeaus.php
Line: 26
Function: _error_handler

File: /home/ubuntu/workspace/application/controllers/AlleCadeausController.php
Line: 12
Function: view

File: /home/ubuntu/workspace/index.php
Line: 315
Function: require_once

category.php视图页面如下所示：

allecadeaus.php文件：

<?php   include_once ('templates/header.php');  ?>

<!-- Alle cadeaus gele title bovenaan pagina -->

<div class="container-fluid">
    <div class="row">
        <div class="col-lg-12 bg-warning" style="font-size:25px">
            <center>Alle cadeaus</center>
        </div>
        </div>
</div>

 <hr />

<br>

<!-- Cadeau categorie side menu -->
<div class="container-fluid">
    <div class="row">
            <div class="col-md-4">
                <div id="categorymenu">
                    <center>  <h3>Categorieën</h3> </center>
                    <ul class="list-group">
                        <?php foreach ($category() as $row) : ?>
                            <li class="list-group-item">
                               <a href="<?php echo base_url('Product/category/'.$row->id);?>"> <?php echo $row->name; ?></a>

                            </li>
                        <?php endforeach; ?>

                    </ul>
                </div>
            </div>




<!-- Laat cadeau zien op alle cadeaus pagina -->
<div class="col-md-8">
<?php foreach($products as $product) : ?>
    <div class="col-md-2">
        <div id="product">
        <a href="<?php echo base_url() ?>/Product/details/<?php echo $product['product_id']; ?>">
          <img src="<?php echo base_url(); ?>upload/<?php echo $product['product_foto_thumb']; ?>">
        </a>
        <div class="product_naam"><?php echo $product['product_naam']; ?></div>
        <div class="ophaal_plaats">
           <?php  echo $product['ophaal_plaats']; ?>
        </div>
        <div class="aangeboden_door">
            <p>Aangeboden door: Peter</p>
              </div>
        </div>
        </div>


<?php endforeach; ?>

</div>



<div class="clearfix"></div>

 <?php   include_once ('templates/footer.php');  ?>

这是我的category.php视图页面：

<?php   include_once ('templates/header.php');  ?>

<!-- Alle cadeaus gele title bovenaan pagina -->

<div class="container-fluid">
    <div class="row">
        <div class="col-lg-12 bg-warning" style="font-size:25px">
            <center>Alle cadeaus</center>
        </div>
        </div>
</div>

 <hr />

<br>

<!-- Cadeau categorie side menu -->
<div class="container-fluid">
    <div class="row">
            <div class="col-md-4">
                <div id="categorymenu">
                    <center>  <h3>Categorieën</h3> </center>
                    <ul class="list-group">
                        <?php foreach (get_categories_h() as $category) : ?>
                            <li class="list-group-item">
                               <a href="<?php echo base_url('Product/category/'.$category->id);?>"> <?php echo $category['name']; ?></a>

                            </li>
                        <?php endforeach; ?>
                    </ul>
                </div>
            </div>




<!-- Laat cadeau zien op alle cadeaus pagina -->
<div class="col-md-8">
<?php foreach($products as $product) : ?>
    <div class="col-md-2">
        <div id="product">
        <a href="<?php echo base_url() ?>/Product/details/<?php echo $product['product_id']; ?>">
          <img src="<?php echo base_url(); ?>upload/<?php echo $product['product_foto_thumb']; ?>">
        </a>
        <div class="product_naam"><?php echo $product['product_naam']; ?></div>
        <div class="ophaal_plaats">
           <?php  echo $product['ophaal_plaats']; ?>
        </div>
        <div class="aangeboden_door">
            <p>Aangeboden door: Peter</p>
              </div>
        </div>
        </div>


<?php endforeach; ?>

</div>



<div class="clearfix"></div>

 <?php   include_once ('templates/footer.php');  ?>

这是我在Product.php控制器文件中的功能：

public function category($id)
 {
  $data['title'] = 'Category';
  $data['page'] = 'Product/category';
  $data['category'] = $this->Category_model->findByCategory($id);
  $data['products'] = $this->Product_model->findByCategory($id);
  $this->load->view('category', $data);
 }

这些是我的产品型号中的功能（Product_model.php）：

public function get_categories(){
        $this->db->select('*'); 
        $this->db->from('categories'); 
        $query = $this->db->get(); 
        $result = $query->result_array();
        return $result;
    }


    public function findAll(){
        return $this->db->get('product')->result();
    }

     public function findByCategory($category_id){
         $this->db->where('category_id', $category_id);
        return $this->db->get('product')->result();
    }

这是我的Category_model.php文件：

<?php


class Category_model extends CI_Model {

    public function findAll(){
        return $this->db->get('category')->result();
    }

    public function find($id){
        $this->db->where('id', $id);
        return $this->db->get('category')->row();
    }

}
?>

一些数据库信息：

Table 1: products
-product_id
-product_naam
-product_beschrijving
-user_id
-category_id

table 2: categories: 2 columns:
1.id
2.name

这是我的类别表的外观：

id  name

1   Cosmetica
2   Antiek en kunst
3   Voor kinderen
4   Apparatuur
5   Boeken
6   Muziek en instrumenten
7   Spellen
8   Sieraden
9   Overige cadeaus
10  Sport

Answer 1

您的类别名称/ ID包含 config.php 文件中当前permitted_uri_chars配置不允许的字符。

转到config.php文件（application\config\config.php）并为$config['permitted_uri_chars']选项提供值：a-z 0-9~%.:_\-\=

这将允许几乎所有常见字符。

Answer 2

您需要在视图文件中更换此代码

<?php foreach ($category as $row) : ?>
                            <li class="list-group-item">
                               <a href="<?php echo base_url('Product/category/'.$row->id);?>"> <?php echo $row->name; ?></a>

                            </li>
                        <?php endforeach; ?>

codeigniter中的产品类别功能不起作用

2 个答案: