具有搜索功能的分页解决方案

Question

我有一个带有搜索功能的页面。 为了在需要分页时继续搜索参数，我必须将搜索词传递给分页链接。

$config['reuse_query_string'] = FALSE;

By default your Query String arguments (nothing to do with other query string options) will be ignored. Setting this config to TRUE will add existing query string arguments back into the URL after the URI segment and before the suffix.:

http://example.com/index.php/test/page/20?query=search%term

This helps you mix together normal URI Segments as well as query string arguments, which until 3.0 was not possible.

但是将此设置为 TRUE 不会自动在 URI 偏移段之后添加搜索查询（在执行搜索之后）。 但是，我确实设法使用了

$config['suffix'] = "?my_search_input=$my_query_value";

创建类似于/method/controller/20/?my_search_input=hello 的分页链接

但我的问题是……

这是最好的方法吗？为什么$config['reuse_query_string'] = TRUE; 不自动将它附加到 URL 中？ 我没有正确理解文档吗？

谢谢。

Answer 1

根据您的要求和表格尝试此更改代码

这样设置控制器

    <?php
class pagination extends CI_Controller {

    public function __construct()
    {
        parent::__construct();
        $this->load->helper('form');
        $this->load->helper('url');
        $this->load->database();
        $this->load->library('pagination');
        $this->load->model('pagination_model');
    }

    public function index()
    {
        //pagination settings
        $config['base_url'] = site_url('pagination/index');
        $config['total_rows'] = $this->db->count_all('tbl_books');
        $config['per_page'] = "3";
        $config["uri_segment"] = 3;
        $choice = $config["total_rows"]/$config["per_page"];
        $config["num_links"] = floor($choice);

        // integrate bootstrap pagination
        $config['full_tag_open'] = '<ul class="pagination">';
        $config['full_tag_close'] = '</ul>';
        $config['first_link'] = false;
        $config['last_link'] = false;
        $config['first_tag_open'] = '<li>';
        $config['first_tag_close'] = '</li>';
        $config['prev_link'] = '«';
        $config['prev_tag_open'] = '<li class="prev">';
        $config['prev_tag_close'] = '</li>';
        $config['next_link'] = '»';
        $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);

        $data['page'] = ($this->uri->segment(3)) ? $this->uri->segment(3) : 0;

        // get books list
        $data['booklist'] = $this->pagination_model->get_books($config["per_page"], $data['page'], NULL);

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

        // load view
        $this->load->view('pagination_view',$data);
    }

    function search()
    {
        // get search string
        $search = ($this->input->post("book_name"))? $this->input->post("book_name") : "NIL";

        $search = ($this->uri->segment(3)) ? $this->uri->segment(3) : $search;

        // pagination settings
        $config = array();
        $config['base_url'] = site_url("pagination/search/$search");
        $config['total_rows'] = $this->pagination_model->get_books_count($search);
        $config['per_page'] = "5";
        $config["uri_segment"] = 4;
        $choice = $config["total_rows"]/$config["per_page"];
        $config["num_links"] = floor($choice);

        // integrate bootstrap pagination
        $config['full_tag_open'] = '<ul class="pagination">';
        $config['full_tag_close'] = '</ul>';
        $config['first_link'] = false;
        $config['last_link'] = false;
        $config['first_tag_open'] = '<li>';
        $config['first_tag_close'] = '</li>';
        $config['prev_link'] = 'Prev';
        $config['prev_tag_open'] = '<li class="prev">';
        $config['prev_tag_close'] = '</li>';
        $config['next_link'] = 'Next';
        $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);

        $data['page'] = ($this->uri->segment(4)) ? $this->uri->segment(4) : 0;
        // get books list
        $data['booklist'] = $this->pagination_model->get_books($config['per_page'], $data['page'], $search);

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

        //Load view
        $this->load->view('pagination_view',$data);
    }
}
?>

这样设置模型

    <?php
class pagination_model extends CI_Model{

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

    //fetch books
    function get_books($limit, $start, $st = NULL)
    {
        if ($st == "NIL") $st = "";
        $sql = "select * from tbl_books where name like '%$st%' limit " . $start . ", " . $limit;
        $query = $this->db->query($sql);
        return $query->result();
    }

    function get_books_count($st = NULL)
    {
        if ($st == "NIL") $st = "";
        $sql = "select * from tbl_books where name like '%$st%'";
        $query = $this->db->query($sql);
        return $query->num_rows();
    }
}
?>

看起来像这样

   <!DOCTYPE html>
<html>
<head>
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>CodeIgniter Pagination Example with Search Query Filter</title>
    <link rel="stylesheet" href="<?php echo base_url("bootstrap/css/bootstrap.css"); ?>">

    <style type="text/css">
    .bg-border {
        border: 1px solid #ddd;
        border-radius: 4px 4px;
        padding: 15px 15px;
    }
    </style>
</head>
<body>
<div class="container">
    <div class="row">
        <div class="col-md-8 col-md-offset-2 well">
        <?php 
        $attr = array("class" => "form-horizontal", "role" => "form", "id" => "form1", "name" => "form1");
        echo form_open("pagination/search", $attr);?>
            <div class="form-group">
                <div class="col-md-6">
                    <input class="form-control" id="book_name" name="book_name" placeholder="Search for Book Name..." type="text" value="<?php echo set_value('book_name'); ?>" />
                </div>
                <div class="col-md-6">
                    <input id="btn_search" name="btn_search" type="submit" class="btn btn-danger" value="Search" />
                    <a href="<?php echo base_url(). "index.php/pagination/index"; ?>" class="btn btn-primary">Show All</a>
                </div>
            </div>
        <?php echo form_close(); ?>
        </div>
    </div>

    <div class="row">
        <div class="col-md-8 col-md-offset-2 bg-border">
            <table class="table table-striped table-hover">
                <thead>
                    <tr>
                    <th>#</th>
                    <th>Book Name</th>
                    <th>Author Name</th>
                    <th>ISBN</th>
                    </tr>
                </thead>
                <tbody>
                <?php for ($i = 0; $i < count($booklist); ++$i) { ?>
                <tr>
                    <td><?php echo ($page+$i+1); ?></td>
                    <td><?php echo $booklist[$i]->name; ?></td>
                    <td><?php echo $booklist[$i]->author; ?></td>
                    <td><?php echo $booklist[$i]->isbn; ?></td>
                </tr>
                <?php } ?>
                </tbody>
            </table>
        </div>
    </div>

    <div class="row">
        <div class="col-md-8 col-md-offset-2">
            <?php echo $pagination; ?>
        </div>
    </div>
</div>
</body>
</html>