Codeigniter 分页显示太多链接

Question

使用 Codeigniter 3 和 PHP 我已经构建了一个 Web 应用程序来显示来自 MySQL 数据库的结果。一切都按预期工作，分页成功允许用户导航页面，并在每页显示正确数量的结果。

我的问题是分页导航栏上的链接似乎总是太多。

例如，我将从我的数据库中返回 79 条记录，每页显示 10 条。那么，分页中应该只显示 8 个链接，对吧？相反，我可以看到 18 个链接。从 9 到 18 的链接将我带到一个空白页面。

我的控制器代码如下；

public function index() {
    $config['base_url'] = '/items/index';
    $config['use_page_numbers'] = FALSE; 
    $config['reuse_query_string'] = TRUE;
    $config['total_rows'] = $this->db->get('item')->num_rows();
    $config['per_page'] = 10;
    $config['num_links'] = 10;
    $config['full_tag_open'] = '<div><ul class="pagination">';
    $config['full_tag_close'] = '</ul></div><!--pagination-->';
    $config['first_link'] = '&laquo; First';
    $config['first_tag_open'] = '<li class="prev page">';
    $config['first_tag_close'] = '</li>';
    $config['last_link'] = 'Last &raquo;';
    $config['last_tag_open'] = '<li class="next page">';
    $config['last_tag_close'] = '</li>';
    $config['next_link'] = 'Next &rarr;';
    $config['next_tag_open'] = '<li class="next page">';
    $config['next_tag_close'] = '</li>';
    $config['prev_link'] = '&larr; Previous';
    $config['prev_tag_open'] = '<li class="prev page">';
    $config['prev_tag_close'] = '</li>';
    $config['cur_tag_open'] = '<li class="active"><a href="">';
    $config['cur_tag_close'] = '</a></li>';
    $config['num_tag_open'] = '<li class="page">';
    $config['num_tag_close'] = '</li>';
    $config['anchor_class'] = 'follow_link';
    $this->load->library('pagination');
    $this->pagination->initialize($config);

    $data = array(
    'items' => $this->items_model->itemList()
    );

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

下面是我的观点；

echo $this->pagination->create_links(); 

我的网址结构如下；

items/index    // displays results 1-10
items/index/10 // displays results 11-20
items/index/20 // displays results 21-30
etc...

感谢任何帮助。 谢谢

Answer 1

这个问题是因为你需要为每个页面更改以下代码行；

$config['total_rows'] = // number of pages returned here from db

这需要存储您希望显示的页数。如果您在每个方法中设置分页配置，那么这应该很容易做到。在您的示例中，您正在这样做；

$config['total_rows'] = $this->db->get('item')->num_rows();

大概你在每个不正确的页面上都返回这个。

Answer 2

每当你要在 Codeigniter 中实现分页时，你需要记住两件事：

第一件事与页面生成相关的配置实际上是：

    // Loads pagination library
    $this->load->library('pagination');

    // @params $url = your controller + method path
    $config['base_url'] = base_url() . $url;

    // @params $totalRows = Total  result found in query
    $config['total_rows'] = $totalRows;

    // @params $perPage = In your case it is 50
    $config['per_page'] = $perPage;

    // @params $segment = This is what you are missing in your code. Segment is the factor from where system reads which page records need to be shown
    $config['uri_segment'] = $segment;
    $this->pagination->initialize($config);

第二件事与设计部分相关的分页配置：

$config['full_tag_open'] = '<ul class="pagination  pagination-sm m-t-none m-b-none">';
$config['full_tag_close'] = '</ul>';
$config['prev_link'] = '<i class="fa fa-chevron-left"></i>';
$config['prev_tag_open'] = '<li>';
$config['prev_tag_close'] = '</li>';
$config['next_link'] = '<i class="fa fa-chevron-right"></i>';
$config['next_tag_open'] = '<li>';
$config['next_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>';

$config['first_tag_open'] = '<li>';
$config['first_tag_close'] = '</li>';
$config['last_tag_open'] = '<li>';
$config['last_tag_close'] = '</li>';

$config['first_link'] = '<i class="fa fa-chevron-left"></i> <i class="fa fa-chevron-left"></i>';
$config['last_link'] = '<i class="fa fa-chevron-right"></i><i class="fa fa-chevron-right"></i>';
$this->pagination->create_links();

这是我在项目中一直使用的运行脚本。工作正常。您需要检查您在初始化期间传递的 uri_segment。

如果您遇到任何问题，请告诉我。

Answer 3

我有完全相同的问题：显示太多链接页面。当它应该只显示10页时，它显示了17页，最后7页为空。 我从另一个线程中遵循这个答案：https://stackoverflow.com/a/21657962。所以我基本上复制并粘贴它以更改我以前的配置。

这是我之前导致错误的代码：

$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>';

删除所有内容并使用上述代码中的代码进行更改：

$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='disabled'><li class='active'><a href='#'>";
$config['cur_tag_close'] = "<span class='sr-only'></span></a></li>";
$config['next_tag_open'] = "<li>";
$config['next_tagl_close'] = "</li>";
$config['prev_tag_open'] = "<li>";
$config['prev_tagl_close'] = "</li>";
$config['first_tag_open'] = "<li>";
$config['first_tagl_close'] = "</li>";
$config['last_tag_open'] = "<li>";
$config['last_tagl_close'] = "</li>";

然后我也碰巧遇到了另一个问题：结果是重复的，最后一页重复了其他数据以使每页有一整行。

我之前的代码：

$data['page'] = ($this->uri->segment(4)) ? $this->uri->segment(4) : 0;

我改成：

$data['page'] = ($this->uri->segment(4)) ? (($this->uri->segment(4) - 1) * $config['per_page']) : 0;

仅作记录：我的$config['uri_segment'] = 4;

Answer 4

你可以试试 datatable.js 首先你在表格中显示所有记录 为表分配唯一的#id 以进行标识 在此之后使用 jquery 并使用数据表创建简单的表，该表具有搜索排序记录导航页面等所有功能 在页脚部分加载 jquery 在页脚部分加载 datatable.css 和 datatable.js jquery的代码

$('#table_id').dataTable();

Answer 5

问题是 per_page，total_rows 就我而言，我解决了它：

$page = 0;
$per_page = 8;
$config["total_rows"] = $this->db->get('item')->num_rows();
$config["total_rows"] = $config["total_rows"]/$per_page;
$config["per_page"] = 1;