我的分页有效。我已将限制设置为每页5条记录，但我希望用户能够在需要时更改它。问题是我不知道该怎么做。
在视图中，我创建了下拉菜单，因此用户可以选择每页要查看的记录数：
<ul class="dropdown-menu">
<li>
<a href="<?php echo base_url(); ?>backOfficeUsers/displayAllUsers" id="2" class="pPage" data-tableid="smpl_tbl">
2 records per page
</a>
</li>
<li>
<a href="<?php echo base_url(); ?>backOfficeUsers/displayAllUsers" id ="50" class="pPage" data-tableid="smpl_tbl">
50 records per page
</a>
</li>
<li><a href="<?php echo base_url(); ?>backOfficeUsers/displayAllUsers" id="100" class="pPage" data-tableid="smpl_tbl">
100 records per page
</a>
</li>
<li>
<a href="<?php echo base_url(); ?>backOfficeUsers/displayAllUsers" id="all" class="pPage" data-tableid="smpl_tbl">
Display all records
</a>
</li>
</ul>
在我的控制器中，我有以下代码：
public function displayAllUsers()
{
$recordsPerPage = 5;
$limit = $recordsPerPage;
$offset = 3;
$offset = $this->uri->segment(3);
$this->db->limit($limit, $offset);
$data['users'] = $this->backOfficeUsersModel->get();
$totalresults = $this->db->get('back_office_users')->num_rows();
//initializing & configuring paging
$this->load->library('pagination');
$config['base_url'] = site_url('/backOfficeUsers/displayAllUsers');
$config['total_rows'] = $totalresults;
$config['per_page'] = $limit;
$config['uri_segment'] = 3;
$config['full_tag_open'] = '<div class="dataTables_paginate paging_bootstrap pagination"><ul>';
$config['full_tag_close'] = '</ul></div>';
$config['cur_tag_open'] = '<li><a href=# style="color:#ffffff; background-color:#258BB5;">';
$config['cur_tag_close'] = '</a></li>';
$config['num_tag_open'] = '<li>';
$config['num_tag_close'] = '</li>';
$this->pagination->initialize($config);
$data['main_content'] = 'bousers/users';
$data['title'] = 'Back Office Users';
$errorMessage = FALSE;
$this->load->vars($data,$errorMessage);
$this->load->vars($currentUser);
$this->load->view('backOffice/template');
} // end of function displayAllUsers
有人能告诉我如何显示用户从下拉菜单中选择的记录数量？如果他没有选择任何内容，我希望默认显示5条记录。
任何帮助都将深表感谢。
的问候，卓然
答案 0 :(得分：3)
你不应该像那样下拉..试试这个
查看
echo form_open('controller/displayAllUsers');
$options = array(
'' => 'Select',
'2' => '2',
'50' => '50',
'100' => '100');
echo form_dropdown('sel',$options,'');
echo form_submit('submit',Submit);
<强>控制器
if(isset($post['sel']) && !empty($post['sel']))
$config['per_page'] = $post['sel'];
else
$config['per_page'] = 5;
在执行此操作之前不要忘记加载表单助手 ..否则你可以给正统的html select框
编辑： （另一种方式）
查看：
<ul class="dropdown-menu">
<li>
<a href="<?php echo base_url(); ?>backOfficeUsers/displayAllUsers/2" class="pPage" data-tableid="smpl_tbl">
2 records per page
</a>
</li>
<li>
<a href="<?php echo base_url(); ?>backOfficeUsers/displayAllUsers/50" class="pPage" data-tableid="smpl_tbl">
50 records per page
</a>
</li>
<li><a href="<?php echo base_url(); ?>backOfficeUsers/displayAllUsers/100" class="pPage" data-tableid="smpl_tbl">
100 records per page
</a>
</li>
<li>
<a href="<?php echo base_url(); ?>backOfficeUsers/displayAllUsers" id="all" class="pPage" data-tableid="smpl_tbl">
Display all records
</a>
</li>
控制器：
public function displayAllUsers()
{
$currentUser = $this->isLoggedIn();
$this->load->model('backOfficeUsersModel');
$this->db->order_by('userid');
//$recordsPerPage = 5;
//$limit = $recordsPerPage;
if ($this->uri->segment(3) !="") {
$limit = $this->uri->segment(3);
} else {
$limit = 5;
}
$offset = 4;
$offset = $this->uri->segment(4);
$this->db->limit($limit, $offset);
$data['users'] = $this->backOfficeUsersModel->get();
答案 1 :(得分：0)
我也实现了相同的代码，它也适用于我的其他页面。
以下是控制器中的代码：
class Test extends CI_Controller {
public $limit = 2;
public $data = array();
/**
* Constructor
*/
public function __construct()
{
parent::__construct();
if($this->input->post('paging_limit')){
$this->limit = $this->input->post('paging_limit');
}
}
public function index()
{
$this->load->library('pagination');
$this->limit = ($this->uri->segment(4)) ? $this->uri->segment(4) : $this->limit;
$config['base_url'] = site_url('test/index/' . $this->limit);
$config['uri_segment'] = 5;
$config['per_page'] = $this->limit;
$offset = ($this->uri->segment(5)) ? $this->uri->segment(5) : 0;
$this->data['page_offset'] = $offset;
$this->data['test_list'] = $this->test_model->get_test_list($this->limit, $offset);
$found_rows = $this->test_model->get_found_rows();
$config['total_rows'] = $found_rows;
$fetched_rows = sizeof($this->data['test_list']);
$this->pagination->initialize($config);
$this->data['pagination'] = $this->pagination->create_links();
$this->data['paging_info'] = get_paging_info($offset, $this->limit, $fetched_rows, $found_rows);
$this->data['paging_limit_dropdown'] = get_paging_limit_options('test/', $this->limit);
$this->load->view('test', $this->data);
}
}
UTILITY Helper功能：
// ------------------------------------------------------------------------
/**
* get_paging_info
*
* Returns the pagination info
* @param int
* @param int
* @param int
* @access public
* @return string
*/
if ( ! function_exists('get_paging_info'))
{
function get_paging_info($offset, $limit, $fetched_rows, $found_rows)
{
$X = $offset + 1;
$Y = $offset + $limit;
if($fetched_rows < $limit)
{
$Y -= ($limit - $fetched_rows);
}
$CI =& get_instance();
$CI->lang->load('common', 'english');
return sprintf($CI->lang->line('common_paging_info'), $X , $Y, $found_rows);
}
}
// ------------------------------------------------------------------------
/**
* get_paging_limit_options
*
* Returns the pagination limit drop down
* @param int
* @param int
* @param int
* @access public
* @return string
*/
if ( ! function_exists('get_paging_limit_options'))
{
function get_paging_limit_options($url, $limit = '')
{
$CI =& get_instance();
$CI->load->helper('form');
$dropdown = form_open($url);
$options = array(
'' => 'Select',
'2' => '2',
'3' => '3',
'4' => '4',
'5' => '5',
'6' => '6',
'10' => '10',
'20' => '20'
);
$dropdown .= form_dropdown('paging_limit', $options, $limit);
$dropdown .= form_submit('submit', 'Go');
return $dropdown;
}
}
公共语言代码：
$lang['common_paging_info'] = "Showing %s to %s of %s entries";
查看档案：
<div class="row-fluid">
<div class="span6">
<div class="pagination">{$paging_info}</div>
</div><!--/span-->
<div class="span6">
{$paging_limit_dropdown}
{$pagination}
</div><!--/span-->
</div><!--/row-->
@注意，我正在使用Smarty模板，用PHP echo替换上面的变量