Why are pagination links not working for me in CodeIgniter?

问题

I'm trying to use codeigniter pagination for my products so there are multiple pages which products but its not working for me and I don't know why..

This is my pagination function in my controller:

//code om in allecadeaus te bepalen hoeveel producten er per pagina zitten
   public function pagination() {
        //load pagination library
        $this->load->library('pagination');
        //laad Products_model voor pagination
        $this->load->model('Pagination_model');
        $this->load->model('Product_model');

        $config = array();
        $config["base_url"] = base_url() . "AlleCadeausController/pagination";
        $config["total_rows"] = $this->products->record_count();
        $config["per_page"] = 24;
        $config['cur_tag_open'] = '<a><b class="text-success">';
        $config['cur_tag_close'] = '</b></a>';
        $config["uri_segment"] = 3;
        $config['use_page_numbers'] =True;
        $config['enable_query_strings'];

        $this->pagination->initialize($config);

        $page = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0;
        $data['title'] = "Products";
        $data['products'] = $this->Product_model->selectProducts();
        $data["links"] = $this->pagination->create_links();

        $this->load->view("allecadeaus", $data);
    }

with this line I'm getting all the products from product table:

$data['products'] = $this->Product_model->selectProducts();

My pagination model:

<?php
class Pagination_model extends CI_Model
{

    public function __construct() {
        parent::__construct();
    }

    public function record_count() {
        return $this->db->count_all("products");
    }

     public function fetch_products($limit, $start) {
        $this->db->limit($limit, $start);
        $query = $this->db->get_where('users',array('Is_Hidden'=>0));

        if ($query->num_rows() > 0) {
            foreach ($query->result() as $row) {
                $data[] = $row;
            }
            return $data;
        }
        return false;
    }

?>

On my all products page I now tried to echo links but it doesn't work. I don't see the correct links and its just 1 link that leads to something else. This is the code in my view on the all products page:

<div class="text-center"><nav aria-label="Page navigation">
                                            <ul class="pagination">

                                                <li><?php echo $links; ?></li>

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

What am I doing wrong?

回答1:

Please make some changes as follows:

Controller:

public function pagination($row = 0) {
     //load pagination library
        $this->load->library('pagination');
        //laad Products_model voor pagination
        $this->load->model('Pagination_model');
        $this->load->model('Product_model');
        $config = array();
        $limit = '24';      
        $config['base_url'] = site_url() . '/AlleCadeausController/pagination';
        $config['full_tag_open'] = "<ul class='pagination'>";
        $config['full_tag_close'] = '</ul>';
        $config['num_tag_open'] = '<li>';
        $config['num_tag_close'] = '</li>';
        $config['cur_tag_open'] = '<li class="active"><a href="#">';
        $config['cur_tag_close'] = '</a></li>';
        $config['prev_tag_open'] = '<li>';
        $config['prev_tag_close'] = '</li>';
        $config['first_tag_open'] = '<li>';
        $config['first_tag_close'] = '</li>';
        $config['last_tag_open'] = '<li>';
        $config['last_tag_close'] = '</li>';
        $config['prev_link'] = '<i class="fa fa-long-arrow-left"></i>Previous Page';
        $config['prev_tag_open'] = '<li>';
        $config['prev_tag_close'] = '</li>';
        $config['next_link'] = 'Next Page<i class="fa fa-long-arrow-right"></i>';
        $config['next_tag_open'] = '<li>';
        $config['next_tag_close'] = '</li>';     
        $config["total_rows"] = $this->Product_model->record_count();            
        $config['per_page'] = $limit;
        $this->pagination->initialize($config);  
        $data['links'] = $this->pagination->create_links();
        $data['products'] = $this->Product_model->selectProducts($row,$limit);
        $this->load->view("allecadeaus", $data);
    }

Model:

function selectProducts($row,$limit)
        {   
            $query = $this->db->get('Your_table_name',$limit,$row);

            if ($query->num_rows() > 0){
              return $query->result_array();
            }
             else {
              return array();
            }

        }

function record_count(){        
        $this->db->from('Your_table_name');         
        $query = $this->db->get();
        $row = $query->num_rows();
        return $row;
    }

This will help you..thanks!

回答2:

You have a mix of code, pagination and not pagination results.

Add,

$config["num_links"] = 5; //Number of links in pagination

After initilize Codeigniter pagination library. You have to execute a pagination query in your database, for example:

$where = "IF you have got";
$orderby "IF you have got";

$data['products'] = $this->Pagination_model->select_products($config["per_page"], $this->uri->segment(3), $where, $orderby);

Then in your model Pagination_model, you should have got this:

public function select_products($per_page, $segment, $where, $orderby)
{
    if (!isset($segment)) $segment = 1;

    $init= ($segment - 1) *  $per_page;

    $sql = "SELECT *
              FROM Your_table
              $where 
              ORDER BY $orderby
              OFFSET $init ROWS
              FETCH NEXT $per_page ROWS ONLY";

    $query= $this->db->query($sql);
    return $query->result_array();
  }

Be sure you are right point to this->uri->segment() is 3. I think you dont have pagination links because you dont have results in your query.

来源：https://stackoverflow.com/questions/47550609/why-are-pagination-links-not-working-for-me-in-codeigniter