diff options
Diffstat (limited to 'system/libraries/Pagination.php')
| -rw-r--r-- | system/libraries/Pagination.php | 338 |
1 files changed, 227 insertions, 111 deletions
diff --git a/system/libraries/Pagination.php b/system/libraries/Pagination.php index cc62e660b..5573f6407 100644 --- a/system/libraries/Pagination.php +++ b/system/libraries/Pagination.php @@ -1,83 +1,87 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * An open source application development framework for PHP 5.2.4 or newer + * + * NOTICE OF LICENSE + * + * Licensed under the Open Software License version 3.0 + * + * This source file is subject to the Open Software License (OSL 3.0) that is + * bundled with this package in the files license.txt / license.rst. It is + * also available through the world wide web at this URL: + * http://opensource.org/licenses/OSL-3.0 + * If you did not receive a copy of the license and are unable to obtain it + * through the world wide web, please send an email to + * licensing@ellislab.com so we can send you a copy immediately. * * @package CodeIgniter - * @author ExpressionEngine Dev Team - * @copyright Copyright (c) 2008 - 2011, EllisLab, Inc. - * @license http://codeigniter.com/user_guide/license.html + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2012, EllisLab, Inc. (http://ellislab.com/) + * @license http://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0) * @link http://codeigniter.com * @since Version 1.0 * @filesource */ -// ------------------------------------------------------------------------ - /** * Pagination Class * * @package CodeIgniter * @subpackage Libraries * @category Pagination - * @author ExpressionEngine Dev Team + * @author EllisLab 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 $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 = ''; + protected $base_url = ''; // The page we are linking to + protected $prefix = ''; // A custom prefix added to the path. + protected $suffix = ''; // A custom suffix added to the path. + protected $total_rows = 0; // Total number of items (database results) + protected $per_page = 10; // Max number of items you want shown per page + protected $num_links = 2; // Number of "digit" links to show before/after the currently viewed page + protected $cur_page = 0; // The current page being viewed + protected $use_page_numbers = FALSE; // Use page number for segment instead of offset + protected $first_link = '‹ First'; + protected $next_link = '>'; + protected $prev_link = '<'; + protected $last_link = 'Last ›'; + protected $uri_segment = 3; + protected $full_tag_open = ''; + protected $full_tag_close = ''; + protected $first_tag_open = ''; + protected $first_tag_close = ' '; + protected $last_tag_open = ' '; + protected $last_tag_close = ''; + protected $first_url = ''; // Alternative URL for the First Page. + protected $cur_tag_open = ' <strong>'; + protected $cur_tag_close = '</strong>'; + protected $next_tag_open = ' '; + protected $next_tag_close = ' '; + protected $prev_tag_open = ' '; + protected $prev_tag_close = ''; + protected $num_tag_open = ' '; + protected $num_tag_close = ''; + protected $page_query_string = FALSE; + protected $query_string_segment = 'per_page'; + protected $display_pages = TRUE; + protected $_attributes = ''; + protected $_link_types = array(); + protected $reuse_query_string = FALSE; + protected $data_page_attr = 'data-ci-pagination-page'; /** * Constructor * - * @access public * @param array initialization parameters + * @return void */ public function __construct($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"); + $this->initialize($params); + log_message('debug', 'Pagination Class Initialized'); } // -------------------------------------------------------------------- @@ -85,12 +89,29 @@ class CI_Pagination { /** * Initialize Preferences * - * @access public * @param array initialization parameters * @return void */ - function initialize($params = array()) + public function initialize($params = array()) { + $attributes = array(); + + if (isset($params['attributes']) && is_array($params['attributes'])) + { + $attributes = $params['attributes']; + unset($params['attributes']); + } + + // Deprecated legacy support for the anchor_class option + // Should be removed in CI 3.1+ + if (isset($params['anchor_class'])) + { + empty($params['anchor_class']) OR $attributes['class'] = $params['anchor_class']; + unset($params['anchor_class']); + } + + $this->_parse_attributes($attributes); + if (count($params) > 0) { foreach ($params as $key => $val) @@ -108,78 +129,89 @@ class CI_Pagination { /** * Generate the pagination links * - * @access public * @return string */ - function create_links() + public function create_links() { // If our item count or per-page total is zero there is no need to continue. - if ($this->total_rows == 0 OR $this->per_page == 0) + if ($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); + $num_pages = (int) ceil($this->total_rows / $this->per_page); // Is there only one page? Hm... nothing more to do here then. - if ($num_pages == 1) + if ($num_pages === 1) { return ''; } + // Set the base page index for starting page number + $base_page = ($this->use_page_numbers) ? 1 : 0; + // Determine the current page number. $CI =& get_instance(); + // See if we are using a prefix or suffix on links + if ($this->prefix !== '' OR $this->suffix !== '') + { + $this->cur_page = (int) str_replace(array($this->prefix, $this->suffix), '', $CI->uri->segment($this->uri_segment)); + } + if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE) { - if ($CI->input->get($this->query_string_segment) != 0) + if ($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; + $this->cur_page = (int) $CI->input->get($this->query_string_segment); } } - else + elseif ( ! $this->cur_page && $CI->uri->segment($this->uri_segment) !== $base_page) { - if ($CI->uri->segment($this->uri_segment) != 0) - { - $this->cur_page = $CI->uri->segment($this->uri_segment); + $this->cur_page = (int) $CI->uri->segment($this->uri_segment); + } - // Prep the current page - no funny business! - $this->cur_page = (int) $this->cur_page; - } + // Set current page to 1 if it's not valid or if using page numbers instead of offset + if ( ! is_numeric($this->cur_page) OR ($this->use_page_numbers && $this->cur_page === 0)) + { + $this->cur_page = $base_page; } - $this->num_links = (int)$this->num_links; + $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)) - { - $this->cur_page = 0; - } - // Is the page number beyond the result range? // If so we show the last page - if ($this->cur_page > $this->total_rows) + if ($this->use_page_numbers) + { + if ($this->cur_page > $num_pages) + { + $this->cur_page = $num_pages; + } + } + elseif ($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); + + if ( ! $this->use_page_numbers) + { + $this->cur_page = (int) floor(($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; + $start = (($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 : $num_pages; - // Is pagination being used over GET or POST? If get, add a per_page query + // Is pagination being used over GET or POST? If get, add a per_page query // string. If post, add a trailing slash to the base URL if needed if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE) { @@ -192,27 +224,56 @@ class CI_Pagination { // And here we go... $output = ''; + $query_string = ''; + + // Add anything in the query string back to the links + // Note: Nothing to do with query_string_segment or any other query string options + if ($this->reuse_query_string === TRUE) + { + $get = $CI->input->get(); + + // Unset the controll, method, old-school routing options + unset($get['c'], $get['m'], $get[$this->query_string_segment]); + + if ( ! $get) $get = array(); + + // Put everything else onto the end + $query_string = (strpos($this->base_url, '&') !== FALSE ? '&' : '?') . http_build_query($get, '', '&'); + + // Add this after the suffix to put it into more links easily + $this->suffix .= $query_string; + } // Render the "First" link - if ($this->first_link !== FALSE AND $this->cur_page > ($this->num_links + 1)) + if ($this->first_link !== FALSE && $this->cur_page > ($this->num_links + 1)) { - $first_url = ($this->first_url == '') ? $this->base_url : $this->first_url; - $output .= $this->first_tag_open.'<a '.$this->anchor_class.'href="'.$first_url.'">'.$this->first_link.'</a>'.$this->first_tag_close; + $first_url = ($this->first_url === '') ? $this->base_url : $this->first_url; + + // Take the general parameters, and squeeze this pagination-page attr in there for JS fw's + $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, 1); + + $output .= $this->first_tag_open.'<a href="'.$first_url.'"'.$attributes.$this->_attr_rel('start').'>' + .$this->first_link.'</a>'.$this->first_tag_close; } // Render the "previous" link - if ($this->prev_link !== FALSE AND $this->cur_page != 1) + if ($this->prev_link !== FALSE && $this->cur_page !== 1) { - $i = $uri_page_number - $this->per_page; + $i = ($this->use_page_numbers) ? $uri_page_number - 1 : $uri_page_number - $this->per_page; + + // Take the general parameters, and squeeze this pagination-page attr in there for JS fw's + $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, (int) $i); - if ($i == 0 && $this->first_url != '') + if ($i === $base_page && $this->first_url !== '') { - $output .= $this->prev_tag_open.'<a '.$this->anchor_class.'href="'.$this->first_url.'">'.$this->prev_link.'</a>'.$this->prev_tag_close; + $output .= $this->prev_tag_open.'<a href="'.$this->first_url.$query_string.'"'.$attributes.$this->_attr_rel('prev').'>' + .$this->prev_link.'</a>'.$this->prev_tag_close; } else { - $i = ($i == 0) ? '' : $this->prefix.$i.$this->suffix; - $output .= $this->prev_tag_open.'<a '.$this->anchor_class.'href="'.$this->base_url.$i.'">'.$this->prev_link.'</a>'.$this->prev_tag_close; + $append = ($i === $base_page) ? $query_string : $this->prefix.$i.$this->suffix; + $output .= $this->prev_tag_open.'<a href="'.$this->base_url.$append.'"'.$attributes.$this->_attr_rel('prev').'>' + .$this->prev_link.'</a>'.$this->prev_tag_close; } } @@ -223,27 +284,30 @@ class CI_Pagination { // Write the digit links for ($loop = $start -1; $loop <= $end; $loop++) { - $i = ($loop * $this->per_page) - $this->per_page; + $i = ($this->use_page_numbers) ? $loop : ($loop * $this->per_page) - $this->per_page; - if ($i >= 0) + // Take the general parameters, and squeeze this pagination-page attr in there for JS fw's + $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, (int) $i); + + if ($i >= $base_page) { - if ($this->cur_page == $loop) + if ($this->cur_page === $loop) { $output .= $this->cur_tag_open.$loop.$this->cur_tag_close; // Current page } else { - $n = ($i == 0) ? '' : $i; - - if ($n == '' && $this->first_url != '') + $n = ($i === $base_page) ? '' : $i; + if ($n === '' && ! empty($this->first_url)) { - $output .= $this->num_tag_open.'<a '.$this->anchor_class.'href="'.$this->first_url.'">'.$loop.'</a>'.$this->num_tag_close; + $output .= $this->num_tag_open.'<a href="'.$this->first_url.$query_string.'"'.$attributes.$this->_attr_rel('start').'>' + .$loop.'</a>'.$this->num_tag_close; } else { - $n = ($n == '') ? '' : $this->prefix.$n.$this->suffix; - - $output .= $this->num_tag_open.'<a '.$this->anchor_class.'href="'.$this->base_url.$n.'">'.$loop.'</a>'.$this->num_tag_close; + $append = ($n === '') ? $query_string : $this->prefix.$n.$this->suffix; + $output .= $this->num_tag_open.'<a href="'.$this->base_url.$append.'"'.$attributes.$this->_attr_rel('start').'>' + .$loop.'</a>'.$this->num_tag_close; } } } @@ -251,29 +315,81 @@ class CI_Pagination { } // Render the "next" link - if ($this->next_link !== FALSE AND $this->cur_page < $num_pages) + if ($this->next_link !== FALSE && $this->cur_page < $num_pages) { - $output .= $this->next_tag_open.'<a '.$this->anchor_class.'href="'.$this->base_url.$this->prefix.($this->cur_page * $this->per_page).$this->suffix.'">'.$this->next_link.'</a>'.$this->next_tag_close; + $i = ($this->use_page_numbers) ? $this->cur_page + 1 : $this->cur_page * $this->per_page; + + // Take the general parameters, and squeeze this pagination-page attr in there for JS fw's + $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, (int) $i); + + $output .= $this->next_tag_open.'<a href="'.$this->base_url.$this->prefix.$i.$this->suffix.'"'.$attributes + .$this->_attr_rel('next').'>'.$this->next_link.'</a>'.$this->next_tag_close; } // Render the "Last" link - if ($this->last_link !== FALSE AND ($this->cur_page + $this->num_links) < $num_pages) + if ($this->last_link !== FALSE && ($this->cur_page + $this->num_links) < $num_pages) { - $i = (($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.'">'.$this->last_link.'</a>'.$this->last_tag_close; + $i = ($this->use_page_numbers) ? $num_pages : ($num_pages * $this->per_page) - $this->per_page; + + // Take the general parameters, and squeeze this pagination-page attr in there for JS fw's + $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, (int) $i); + + $output .= $this->last_tag_open.'<a href="'.$this->base_url.$this->prefix.$i.$this->suffix.'"'.$attributes.'>' + .$this->last_link.'</a>'.$this->last_tag_close; } - // Kill double slashes. Note: Sometimes we can end up with a double slash + // 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); + $output = preg_replace('#([^:])//+#', '\\1/', $output); // Add the wrapper HTML if exists - $output = $this->full_tag_open.$output.$this->full_tag_close; + return $this->full_tag_open.$output.$this->full_tag_close; + } + + // -------------------------------------------------------------------- - return $output; + /** + * Parse attributes + * + * @param array + * @return void + */ + protected function _parse_attributes($attributes) + { + isset($attributes['rel']) OR $attributes['rel'] = TRUE; + $this->_link_types = ($attributes['rel']) + ? array('start' => 'start', 'prev' => 'prev', 'next' => 'next') + : array(); + unset($attributes['rel']); + + $this->_attributes = ''; + foreach ($attributes as $key => $value) + { + $this->_attributes .= ' '.$key.'="'.$value.'"'; + } + } + + // -------------------------------------------------------------------- + + /** + * Add "rel" attribute + * + * @link http://www.w3.org/TR/html5/links.html#linkTypes + * @param string + * @return string + */ + protected function _attr_rel($type) + { + if (isset($this->_link_types[$type])) + { + unset($this->_link_types[$type]); + return ' rel="'.$type.'"'; + } + + return ''; } + } -// END Pagination Class /* End of file Pagination.php */ /* Location: ./system/libraries/Pagination.php */
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