如何在 Codeigniter 中进行路由

Question

我在 CI 中遇到路由问题。

我有一个控制器，其参数支持类别和子类别

category/subcategory

我想出了这样的条目，但它们不太管用。

$route['(:any)'] = 'ads/cat/';   
$route['(:any)/(:any)'] = 'ads/cat//';   
$route['(:any)/(:any)/(:num)'] = 'ads/cat///';

一切正常，直到我添加分页 - </code>。 </p> <p>我的意思是分页仅适用于 <code>category/subcategory/10... 但是当我打开它时 category/10 它会将 10 视为第二个参数，而不是分页 ...

如何让它发挥作用？

这是我的控制器的代码：

public function cat( $cat_alias, $subcat_alias = null)
    {
        $this->load->library('pagination');
        $limit = 10 ;

        if (!empty($subcat_alias)) {
        $start = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0;
        }
        else 
        {
        $start = ($this->uri->segment(2)) ? $this->uri->segment(2) : 0;
        }

        if (isset($_GET['city'])) 
        {
        $city = $_GET['city'];

        }

        $where = array( 'catalogue' => $cat_alias );
        $ad_category = $this->Site_model->get_single( 'categories' , $where );
        $children = $this->Site_model->get_childrens($ad_category->id);

        foreach ($children as $child) 
        {
            $childs[] = $child->id;
        }


        if ( !empty( $ad_category ) )
        {

            if (!empty($subcat_alias)) 
                {

                $where = array( 'catalogue' => $subcat_alias );
                $ad_category2 = $this->Site_model->get_single( 'categories' , $where );

                $data['meta']['title'] = $ad_category2->title;
                $data['meta']['desc'] = $ad_category2->description;

                $where = array('category_id' => $ad_category2->id);

                }

                else
                {

                $where = array( 'category_id' => $childs );
                $data['meta']['title'] = $ad_category->title;
                $data['meta']['desc'] = $ad_category->description;
                }

            $ads = $this->Site_model->get( 'ads' , $where, $limit, $start );
            $data['counter'] = $this->Site_model->get_count( 'ads' , $where);


            if ( !empty( $ads ) )
            {

                foreach ( $ads as $ad )
                {
                    $ad_ids[] = $ad->id;
                }
                $where = array( 'id' => $ad_ids );

            if (!empty($city)) 
                {
                $wher = array( 'slug' => $city );
                $ad_city = $this->Site_model->get_single( 'cities' , $wher );


                $where_filter['city_id'] = $ad_city->id; 
                $data['ads'] = $this->Site_model->filter('ads', $where, $where_filter, $limit, $start);



                }
                else
                {

                $data['ads'] = $this->Site_model->get( 'ads' , $where, $limit, $start );

                }


if (!empty($subcat_alias)) {
        $config['base_url'] = site_url(''.$cat_alias.'/'.$subcat_alias.'');
        $config['uri_segment'] = 3;
    }
    else
    {
        $config['base_url'] = site_url(''.$cat_alias.'/');
        $config['uri_segment'] = 2;
    }
        $config['total_rows'] = $data['counter'];
        $config['use_page_numbers'] = TRUE;
        $config['per_page'] = 10;
        $config['full_tag_open'] = '<div class="pagination"><ul>';
        $config['full_tag_close'] = '</ul></div>';
        $config['first_link'] = false;
        $config['last_link'] = false;
        $config['first_tag_open'] = '<li>';
        $config['first_tag_close'] = '</li>';
        $config['prev_link'] = '&larr;';
        $config['prev_tag_open'] = '<li class="prev">';
        $config['prev_tag_close'] = '</li>';
        $config['next_link'] = '&rarr;';
        $config['next_tag_open'] = '<li>';
        $config['next_tag_close'] = '</li>';
        $config['last_tag_open'] = '<li>';
        $config['last_tag_close'] = '</li>';
        $config['cur_tag_open'] =  '<li class="active"><a href="#">';
        $config['cur_tag_close'] = '</a></li>';
        $config['num_tag_open'] = '<li>';
        $config['num_tag_close'] = '</li>';


        $this->pagination->initialize($config);
        $data['pagination'] = $this->pagination->create_links();

        $data['categories'] = $this->Site_model->get_categories();
        $data['current'] = $this->uri->segment(1);
        // $data['meta']['title'] = $ad_category->title;
        // $data['meta']['desc'] = $ad_category->description;
        $this->load->view( 'cat' , $data );

            }
            else
            {
                $this->session->set_flashdata( 'alert' , 'Aktualnie brak ogłoszeń w tej kategorii.' );
                 redirect( '/' );
            }

        }
        else
        {
            $this->session->set_flashdata( 'alert' , 'Niepoprawna nazwa kategorii.' );
             redirect( '/' );            
        }



    }

Answer 1

我猜你的控制器看起来像这样：

function cat($category, $subcategory, $pagination){...}

您需要对其进行一些更改，以便它可以检测第二个参数是否是分页，如下所示：

function cat($category, $subcategory, $pagination=null)
{
    if($pagination == null && is_numeric($subcategory)) $pagination = $subcategory;
    //your code
}

如果 $category & $subcategory 是字符串，这将起作用，但如果它们是数字 (id)，那么您需要多检查一下

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