|
|
主要是觉得ci自己的分页类不是太友好 没有分页的时候不显示， 并且分页上面的首页尾页上一页下一页也是进行判断之后再显示是不是显示，看上去不是太友好，然后就自己看了下源码，进行了下修改：
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
/**
* CodeIgniter
*
* An open source application development framework for PHP 5.1.6 or newer
*
* @package CodeIgniter
* @author ExpressionEngine Dev Team
* @copyright Copyright (c) 2008 - 2011, EllisLab, Inc.
* @license http://codeigniter.com/user_guide/license.html
* @link http://codeigniter.com
* @since Version 1.0
* @filesource
*/
// ------------------------------------------------------------------------
/**
* Pagination Class
*
* @package CodeIgniter
* @subpackage Libraries
* @category Pagination
* @author ExpressionEngine Dev Team
* @link http://codeigniter.com/user_guide/libraries/pagination.html
*/
class CI_Pagination {
var $base_url = ''; // The page we are linking to
var $prefix = ''; // A custom prefix added to the path.
var $suffix = ''; // A custom suffix added to the path.
var $total_rows = 0; // Total number of items (database results)
var $per_page = 10; // Max number of items you want shown per page
var $num_links = 2; // Number of "digit" links to show before/after the currently viewed page
var $cur_page = 0; // The current page being viewed
var $use_page_numbers = FALSE; // Use page number for segment instead of offset
var $first_link = '‹ First';
var $next_link = '>';
var $prev_link = '<';
var $last_link = 'Last ›';
var $uri_segment = 3;
var $full_tag_open = '';
var $full_tag_close = '';
var $first_tag_open = '';
var $first_tag_close = ' ';
var $last_tag_open = ' ';
var $last_tag_close = '';
var $first_url = ''; // Alternative URL for the First Page.
var $cur_tag_open = ' <strong>';
var $cur_tag_close = '</strong>';
var $next_tag_open = ' ';
var $next_tag_close = ' ';
var $prev_tag_open = ' ';
var $prev_tag_close = '';
var $num_tag_open = ' ';
var $num_tag_close = '';
var $page_query_string = FALSE;
var $query_string_segment = 'per_page';
var $display_pages = TRUE;
var $anchor_class = '';
/**
* Constructor
*
* @access public
* @param array initialization parameters
*/
public function __construct($params = array())
{
if (count($params) > 0)
{
$this->initialize($params);
}
if ($this->anchor_class != '')
{
$this->anchor_class = 'class="'.$this->anchor_class.'" ';
}
log_message('debug', "Pagination Class Initialized");
}
// --------------------------------------------------------------------
/**
* Initialize Preferences
*
* @access public
* @param array initialization parameters
* @return void
*/
function initialize($params = array())
{
if (count($params) > 0)
{
foreach ($params as $key => $val)
{
if (isset($this->$key))
{
$this->$key = $val;
}
}
}
}
// --------------------------------------------------------------------
/**
* Generate the pagination links
*
* @access public
* @return string
*/
function create_links()
{
// If our item count or per-page total is zero there is no need to continue.
// if ($this->total_rows == 0 OR $this->per_page == 0)
// {
// return '';
// }
// Calculate the total number of pages
$num_pages = ceil($this->total_rows / $this->per_page);
// Is there only one page? Hm... nothing more to do here then.
// if ($num_pages == 1)
// {
// return '';
// }
// Set the base page index for starting page number
if ($this->use_page_numbers)
{
$base_page = 1;
}
else
{
$base_page = 0;
}
// Determine the current page number.
$CI =& get_instance();
if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE)
{
if ($CI->input->get($this->query_string_segment) != $base_page)
{
$this->cur_page = $CI->input->get($this->query_string_segment);
// Prep the current page - no funny business!
$this->cur_page = (int) $this->cur_page;
}
}
else
{
if ($CI->uri->segment($this->uri_segment) != $base_page)
{
$this->cur_page = $CI->uri->segment($this->uri_segment);
// Prep the current page - no funny business!
$this->cur_page = (int) $this->cur_page;
}
}
// Set current page to 1 if using page numbers instead of offset
if ($this->use_page_numbers AND $this->cur_page == 0)
{
$this->cur_page = $base_page;
}
$this->num_links = (int)$this->num_links;
if ($this->num_links < 1)
{
show_error('Your number of links must be a positive number.');
}
if ( ! is_numeric($this->cur_page))
{
$this->cur_page = $base_page;
}
// Is the page number beyond the result range?
// If so we show the last page
if ($this->use_page_numbers)
{
if ($this->cur_page > $num_pages)
{
$this->cur_page = $num_pages;
}
}
else
{
if ($this->cur_page > $this->total_rows)
{
$this->cur_page = ($num_pages - 1) * $this->per_page;
}
}
$uri_page_number = $this->cur_page;
if ( ! $this->use_page_numbers)
{
$this->cur_page = floor(($this->cur_page/$this->per_page) + 1);
}
// Calculate the start and end numbers. These determine
// which number to start and end the digit links with
$start = (($this->cur_page - $this->num_links) > 0) ? $this->cur_page - ($this->num_links - 1) : 1;
$end = (($this->cur_page + $this->num_links) < $num_pages) ? $this->cur_page + $this->num_links : $num_pages;
// Is pagination being used over GET or POST? If get, add a per_page query
// string. If post, add a trailing slash to the base URL if needed
if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE)
{
$this->base_url = rtrim($this->base_url).'&'.$this->query_string_segment.'=';
}
else
{
$this->base_url = rtrim($this->base_url, '/') .'/';
}
// And here we go...
$output = '';
// Render the "First" link
if ($this->first_link !== FALSE AND $this->cur_page > 1)
{
$first_url = ($this->first_url == '') ? $this->base_url.'/0.html' : $this->first_url;
$output .= $this->first_tag_open.'<a '.$this->anchor_class.'href="'.$first_url.'">'.$this->first_link.'</a>'.$this->first_tag_close;
}else{
$output .= $this->first_tag_open.$this->first_link.$this->first_tag_close;
}
// Render the "previous" link
if ($this->prev_link !== FALSE AND $this->cur_page != 1)
{
if ($this->use_page_numbers)
{
$i = $uri_page_number - 1;
}
else
{
$i = $uri_page_number - $this->per_page;
}
if ($i == 0 && $this->first_url != '')
{
$output .= $this->prev_tag_open.'<a '.$this->anchor_class.'href="'.$this->first_url.'">'.$this->prev_link.'</a>'.$this->prev_tag_close;
}
else
{
$i = $this->prefix.$i.$this->suffix;
$output .= $this->prev_tag_open.'<a '.$this->anchor_class.'href="'.$this->base_url.$i.'.html'.'">'.$this->prev_link.'</a>'.$this->prev_tag_close;
}
}else{
$output .= $this->prev_tag_open.$this->prev_link.$this->prev_tag_close;
}
// Render the pages
if ($this->display_pages !== FALSE)
{
// Write the digit links
for ($loop = $start -1; $loop <= $end; $loop++)
{
if ($this->use_page_numbers)
{
$i = $loop;
}
else
{
$i = ($loop * $this->per_page) - $this->per_page;
}
if ($i >= $base_page)
{
if ($this->cur_page == $loop)
{
$output .= $this->cur_tag_open.$loop.$this->cur_tag_close; // Current page
}
else
{
$n = ($i == $base_page) ? '' : $i;
if ($n == '' && $this->first_url != '')
{
$output .= $this->num_tag_open.'<a '.$this->anchor_class.'href="'.$this->first_url.'">'.$loop.'</a>'.$this->num_tag_close;
}
else
{
$n = $this->prefix.$i.$this->suffix;
$output .= $this->num_tag_open.'<a '.$this->anchor_class.'href="'.$this->base_url.$n.'.html'.'">'.$loop.'</a>'.$this->num_tag_close;
}
}
}
}
}
// Render the "next" link
if ($this->next_link !== FALSE AND $this->cur_page < $num_pages)
{
if ($this->use_page_numbers)
{
$i = $this->cur_page + 1;
}
else
{
$i = ($this->cur_page * $this->per_page);
}
$output .= $this->next_tag_open.'<a '.$this->anchor_class.'href="'.$this->base_url.$this->prefix.$i.$this->suffix.'.html'.'">'.$this->next_link.'</a>'.$this->next_tag_close;
}else{
$output .= $this->next_tag_open.$this->next_link.$this->next_tag_close;
}
// Render the "Last" link
if ($this->last_link !== FALSE AND $this->cur_page < $num_pages)
{
if ($this->use_page_numbers)
{
$i = $num_pages;
}
else
{
$i = (($num_pages * $this->per_page) - $this->per_page);
}
$output .= $this->last_tag_open.'<a '.$this->anchor_class.'href="'.$this->base_url.$this->prefix.$i.$this->suffix.'.html'.'">'.$this->last_link.'</a>'.$this->last_tag_close;
}else{
$output .= $this->last_tag_open.$this->last_link.$this->last_tag_close;
}
// Kill double slashes. Note: Sometimes we can end up with a double slash
// in the penultimate link so we'll kill all double slashes.
$output = preg_replace("#([^:])//+#", "\\1/", $output);
// Add the wrapper HTML if exists
$output = $this->full_tag_open.$output.$this->full_tag_close;
return $output;
}
}
// END Pagination Class
/* End of file Pagination.php */
/* Location: ./system/libraries/Pagination.php */
|
|
IP卡
狗仔卡
发表于 2012-1-6 09:30:46
提升卡
置顶卡
沉默卡
喧嚣卡
变色卡
千斤顶
显身卡
虽然这个类的核心就一个方法但建议大家改的时候还是使用拓展类的方式吧，至少以后升级方便