/components/libraries/cmslib/libraries/pagination.php
PHP | 322 lines | 180 code | 53 blank | 89 comment | 31 complexity | 8af4d97e0757231d4d843850c6fae68c MD5 | raw file
Possible License(s): GPL-2.0, LGPL-2.1
- <?php
- (defined('_VALID_MOS') OR defined('_JEXEC')) or die('Direct Access to this location is not allowed.');
- /**
- * CodeIgniter
- *
- * An open source application development framework for PHP 4.3.2 or newer
- *
- * @package CodeIgniter
- * @author Rick Ellis
- * @copyright Copyright (c) 2006, EllisLab, Inc.
- * @license http://www.codeignitor.com/user_guide/license.html
- * @link http://www.codeigniter.com
- * @since Version 1.0
- * @filesource
- *
- * @modified Azrul Rahim
- * @purpose Change class naming and remove CI dependecies
- */
- // ------------------------------------------------------------------------
- /**
- * Pagination Class
- *
- * @package CodeIgniter
- * @subpackage Libraries
- * @category Pagination
- * @author Rick Ellis
- * @link http://www.codeigniter.com/user_guide/libraries/pagination.html
- */
- class CMSPagination {
- var $base_url = ''; // The page we are linking to
- var $total_rows = ''; // Total number of items (database results)
- var $per_page = 4; // Max number of items you want shown per page
- var $num_links = 4; // Number of "digit" links to show before/after the currently viewed page
- var $cur_page = 0; // The current page being viewed
- var $first_link = '‹ First';
- var $next_link = '>';
- var $prev_link = '<';
- var $last_link = 'Last ›';
- 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 $cur_tag_open = ' <b>';
- var $cur_tag_close = '</b>';
- 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 $item_id = "1";
- var $num_pages = 0;
- var $last_page = "";
- var $cms = null;
- /**
- * Constructor
- *
- * @access public
- * @param array initialization parameters
- */
- function CMSPagination($params = array())
- {
- if (count($params) > 0)
- {
- $this->initialize($params);
- }
- //log_message('debug', "Pagination Class Initialized");
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Initialize Preferences
- *
- * @access public
- * @param array initialization parameters
- * @return void
- */
- function initialize($params = array())
- {
- $this->cms =& cmsInstance('CMSCore');
- $this->cms->load('helper','url');
-
- if (count($params) > 0)
- {
- foreach ($params as $key => $val)
- {
- if (isset($this->$key))
- {
- $this->$key = $val;
- }
- }
- }
-
- // Need to clean up any previous &cpage
- $this->base_url = preg_replace('/\&cpage=[0-9]*/', '', $this->base_url);
- $this->base_url = preg_replace('/\&cpage=[0-9]*/', '', $this->base_url);
-
- // Remove the url and set it to start with index.php if SEF ext exist
- if(function_exists('function_exists'))
- $this->base_url = "index.php" . substr($this->base_url, strpos($this->base_url, '?'));
-
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Return the current limist start value
- *
- * @access public
- * @return number, current limitstart
- */
- function get_page()
- {
- // For build-in SEF ext for com_content, we need to handle it in a special way
- if($p = strpos($_SERVER['REQUEST_URI'], 'content/view/cpage,'))
- {
- return substr($_SERVER['REQUEST_URI'], $p+19);
- } else
- if(isset($_GET['cpage']))
- return $_GET['cpage'];
- else
- return 0;
- }
-
- // --------------------------------------------------------------------
-
- /**
- * Generate the pagination links
- *
- * @access public
- * @return string
- */
- function create_links()
- {
- // If our item count or per-page total is zero there is no need to continue.
- if ($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);
- $this->num_pages = $num_pages;
- // Is there only one page? Hm... nothing more to do here then.
- if ($num_pages == 1)
- {
- return '';
- }
- // Determine the current page number.
- // $CI =& get_instance();
- if (isset($_GET['cpage']))
- {
- $this->cur_page = intval($_GET['cpage']);
-
- // Prep the current page - no funny business!
- $this->cur_page = (int) $this->cur_page;
- }
-
- if ( ! is_numeric($this->cur_page))
- {
- $this->cur_page = 0;
- }
-
- // Is the page number beyond the result range?
- // If so we show the last page
- if ($this->cur_page > $this->total_rows)
- {
- $this->cur_page = ($num_pages - 1) * $this->per_page;
- }
-
- $uri_page_number = $this->cur_page;
- $this->cur_page = floor(($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;
- // Add a trailing slash to the base URL if needed
- $this->base_url = rtrim($this->base_url); //rtrim($this->base_url, '/') .'/';
- // And here we go...
- $output = '';
- // Render the "First" link
- if ($this->cur_page > $this->num_links)
- {
- $output .= $this->first_tag_open.'<a href="'.$this->base_url.'">'.$this->first_link.'</a>'.$this->first_tag_close;
- }
- // Render the "previous" link
- if (($this->cur_page - $this->num_links) >= 0)
- {
- $i = $uri_page_number - $this->per_page;
- if ($i == 0) $i = '';
-
- $tl = $this->base_url.'&cpage='.$i;
- if(function_exists('function_exists'))
- $tl = cmsSefAmpReplace($tl);
-
- if(strpos($tl, 'content/view'))
- {
- $tl .= "cpage,$i";
- }
- $output .= $this->prev_tag_open.'<a href="'.$tl.'">'.$this->prev_link.'</a>'.$this->prev_tag_close;
- }
- // Write the digit links
- for ($loop = $start -1; $loop <= $end; $loop++)
- {
- $i = ($loop * $this->per_page) - $this->per_page;
-
- if ($i >= 0)
- {
- if ($this->cur_page == $loop)
- {
- $output .= $this->cur_tag_open.$loop.$this->cur_tag_close; // Current page
- }
- else
- {
- //$n = ($i == 0) ? '' : "&cpage=$i";
- $n = "&cpage=$i";
- $tl = $this->base_url.$n;
-
- $tl = cmsSefAmpReplace($tl);
-
- // For com_content view, we need to specifically add the cpage,xxx
- // since it doesn't gets added by Joomla default SEF ext
- if(strpos($tl, 'content/view'))
- {
- $tl .= "cpage,$i";
- }
-
- $output .= $this->num_tag_open.'<a href="'.$tl.'">'.$loop.'</a>'.$this->num_tag_close;
- }
- }
- }
- // Render the "next" link
- if ($this->cur_page < $num_pages)
- {
- $i = ($this->cur_page * $this->per_page);
- $tl = $this->base_url.'&cpage='.$i;
- $tl = cmsSefAmpReplace($tl);
-
- // For com_content view, we need to specifically add the cpage,xxx
- // since it doesn't gets added by Joomla default SEF ext
- if(strpos($tl, 'content/view'))
- {
- $tl .= "cpage,$i";
- }
-
- //$output .= $this->next_tag_open.'<a href="'.$this->base_url.'&cpage='.($this->cur_page * $this->per_page).'">'.$this->next_link.'</a>'.$this->next_tag_close;
- $output .= $this->next_tag_open.'<a href="'.$tl.'">'.$this->next_link.'</a>'.$this->next_tag_close;
- }
- // Render the "Last" link
- if (($this->cur_page + $this->num_links) < $num_pages)
- {
- $i = (($num_pages * $this->per_page) - $this->per_page);
-
- $tl = $this->base_url.'&cpage='.$i;
- $tl = cmsSefAmpReplace($tl);
-
- // For com_content view, we need to specifically add the cpage,xxx
- // since it doesn't gets added by Joomla default SEF ext
- if(strpos($tl, 'content/view'))
- {
- $tl .= "cpage,$i";
- }
-
- $this->last_page = $tl;
-
- $output .= $this->last_tag_open.'<a href="'.$tl.'">'.$this->last_link.'</a>'.$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 $output;
- }
-
- function last_link()
- {
- if (($this->num_pages > 1))
- {
- $i = (($this->num_pages * $this->per_page) - $this->per_page);
-
- $tl = $this->base_url.'&cpage='.$i;
- $tl = cmsSefAmpReplace($tl);
-
- // For com_content view, we need to specifically add the cpage,xxx
- // since it doesn't gets added by Joomla default SEF ext
- if(strpos($tl, 'content/view'))
- {
- $tl .= "cpage,$i";
- }
-
- return $tl;
- }
- }
- }
- // END Pagination Class
- ?>