diff options
Diffstat (limited to 'system/libraries/Pagination.php')
| -rw-r--r-- | system/libraries/Pagination.php | 721 |
1 files changed, 539 insertions, 182 deletions
diff --git a/system/libraries/Pagination.php b/system/libraries/Pagination.php index 8b3aa8748..7d21b47b3 100644 --- a/system/libraries/Pagination.php +++ b/system/libraries/Pagination.php @@ -1,19 +1,42 @@ -<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed'); +<?php /** * CodeIgniter * - * An open source application development framework for PHP 5.1.6 or newer + * An open source application development framework for PHP * - * @package CodeIgniter - * @author ExpressionEngine Dev Team - * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. - * @license http://codeigniter.com/user_guide/license.html - * @link http://codeigniter.com - * @since Version 1.0 + * This content is released under the MIT License (MIT) + * + * Copyright (c) 2019 - 2022, CodeIgniter Foundation + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @package CodeIgniter + * @author EllisLab Dev Team + * @copyright Copyright (c) 2008 - 2014, EllisLab, Inc. (https://ellislab.com/) + * @copyright Copyright (c) 2014 - 2019, British Columbia Institute of Technology (https://bcit.ca/) + * @copyright Copyright (c) 2019 - 2022, CodeIgniter Foundation (https://codeigniter.com/) + * @license https://opensource.org/licenses/MIT MIT License + * @link https://codeigniter.com + * @since Version 1.0.0 * @filesource */ - -// ------------------------------------------------------------------------ +defined('BASEPATH') OR exit('No direct script access allowed'); /** * Pagination Class @@ -21,64 +44,308 @@ * @package CodeIgniter * @subpackage Libraries * @category Pagination - * @author ExpressionEngine Dev Team - * @link http://codeigniter.com/user_guide/libraries/pagination.html + * @author EllisLab Dev Team + * @link https://codeigniter.com/userguide3/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 = ''; + /** + * Base URL + * + * The page that we're linking to + * + * @var string + */ + protected $base_url = ''; + + /** + * Prefix + * + * @var string + */ + protected $prefix = ''; + + /** + * Suffix + * + * @var string + */ + protected $suffix = ''; + + /** + * Total number of items + * + * @var int + */ + protected $total_rows = 0; + + /** + * Number of links to show + * + * Relates to "digit" type links shown before/after + * the currently viewed page. + * + * @var int + */ + protected $num_links = 2; + + /** + * Items per page + * + * @var int + */ + public $per_page = 10; + + /** + * Current page + * + * @var int + */ + public $cur_page = 0; + + /** + * Use page numbers flag + * + * Whether to use actual page numbers instead of an offset + * + * @var bool + */ + protected $use_page_numbers = FALSE; + + /** + * First link + * + * @var string + */ + protected $first_link = '‹ First'; + + /** + * Next link + * + * @var string + */ + protected $next_link = '>'; + + /** + * Previous link + * + * @var string + */ + protected $prev_link = '<'; + + /** + * Last link + * + * @var string + */ + protected $last_link = 'Last ›'; + + /** + * URI Segment + * + * @var int + */ + protected $uri_segment = 0; + + /** + * Full tag open + * + * @var string + */ + protected $full_tag_open = ''; + + /** + * Full tag close + * + * @var string + */ + protected $full_tag_close = ''; + + /** + * First tag open + * + * @var string + */ + protected $first_tag_open = ''; + + /** + * First tag close + * + * @var string + */ + protected $first_tag_close = ''; + + /** + * Last tag open + * + * @var string + */ + protected $last_tag_open = ''; + + /** + * Last tag close + * + * @var string + */ + protected $last_tag_close = ''; + + /** + * First URL + * + * An alternative URL for the first page + * + * @var string + */ + protected $first_url = ''; + + /** + * Current tag open + * + * @var string + */ + protected $cur_tag_open = '<strong>'; + + /** + * Current tag close + * + * @var string + */ + protected $cur_tag_close = '</strong>'; + + /** + * Next tag open + * + * @var string + */ + protected $next_tag_open = ''; + + /** + * Next tag close + * + * @var string + */ + protected $next_tag_close = ''; + + /** + * Previous tag open + * + * @var string + */ + protected $prev_tag_open = ''; + + /** + * Previous tag close + * + * @var string + */ + protected $prev_tag_close = ''; + + /** + * Number tag open + * + * @var string + */ + protected $num_tag_open = ''; + + /** + * Number tag close + * + * @var string + */ + protected $num_tag_close = ''; + + /** + * Page query string flag + * + * @var bool + */ + protected $page_query_string = FALSE; + + /** + * Query string segment + * + * @var string + */ + protected $query_string_segment = 'per_page'; + + /** + * Display pages flag + * + * @var bool + */ + protected $display_pages = TRUE; + + /** + * Attributes + * + * @var string + */ + protected $_attributes = ''; + + /** + * Link types + * + * "rel" attribute + * + * @see CI_Pagination::_attr_rel() + * @var array + */ + protected $_link_types = array(); + + /** + * Reuse query string flag + * + * @var bool + */ + protected $reuse_query_string = FALSE; + + /** + * Use global URL suffix flag + * + * @var bool + */ + protected $use_global_url_suffix = FALSE; + + /** + * Data page attribute + * + * @var string + */ + protected $data_page_attr = 'data-ci-pagination-page'; + + /** + * CI Singleton + * + * @var object + */ + protected $CI; + + // -------------------------------------------------------------------- /** * Constructor * - * @access public - * @param array initialization parameters + * @param array $params Initialization parameters + * @return void */ public function __construct($params = array()) { - if (count($params) > 0) + $this->CI =& get_instance(); + $this->CI->load->language('pagination'); + foreach (array('first_link', 'next_link', 'prev_link', 'last_link') as $key) { - $this->initialize($params); + if (($val = $this->CI->lang->line('pagination_'.$key)) !== FALSE) + { + $this->$key = $val; + } } - if ($this->anchor_class != '') - { - $this->anchor_class = 'class="'.$this->anchor_class.'" '; - } + // _parse_attributes(), called by initialize(), needs to run at least once + // in order to enable "rel" attributes, and this triggers it. + isset($params['attributes']) OR $params['attributes'] = array(); - log_message('debug', "Pagination Class Initialized"); + $this->initialize($params); + log_message('info', 'Pagination Class Initialized'); } // -------------------------------------------------------------------- @@ -86,22 +353,36 @@ class CI_Pagination { /** * Initialize Preferences * - * @access public - * @param array initialization parameters - * @return void + * @param array $params Initialization parameters + * @return CI_Pagination */ - function initialize($params = array()) + public function initialize(array $params = array()) { - if (count($params) > 0) + if (isset($params['attributes']) && is_array($params['attributes'])) + { + $this->_parse_attributes($params['attributes']); + unset($params['attributes']); + } + + foreach ($params as $key => $val) { - foreach ($params as $key => $val) + if (property_exists($this, $key)) { - if (isset($this->$key)) - { - $this->$key = $val; - } + $this->$key = $val; } } + + if ($this->CI->config->item('enable_query_strings') === TRUE) + { + $this->page_query_string = TRUE; + } + + if ($this->use_global_url_suffix === TRUE) + { + $this->suffix = $this->CI->config->item('url_suffix'); + } + + return $this; } // -------------------------------------------------------------------- @@ -109,80 +390,143 @@ class CI_Pagination { /** * Generate the pagination links * - * @access public * @return string */ - function create_links() + public function create_links() { // If our item count or per-page total is zero there is no need to continue. + // Note: DO NOT change the operator to === here! if ($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 ($num_pages === 1) { return ''; } - // Set the base page index for starting page number - if ($this->use_page_numbers) + // Check the user defined number of links. + $this->num_links = (int) $this->num_links; + + if ($this->num_links < 0) + { + show_error('Your number of links must be a non-negative number.'); + } + + // Keep any existing query string items. + // Note: Has nothing to do with any other query string option. + if ($this->reuse_query_string === TRUE) { - $base_page = 1; + $get = $this->CI->input->get(); + + // Unset the control, method, old-school routing options + unset($get['c'], $get['m'], $get[$this->query_string_segment]); } else { - $base_page = 0; + $get = array(); } - // Determine the current page number. - $CI =& get_instance(); + // Put together our base and first URLs. + // Note: DO NOT append to the properties as that would break successive calls + $base_url = trim($this->base_url); + $first_url = $this->first_url; + + $query_string = ''; + $query_string_sep = (strpos($base_url, '?') === FALSE) ? '?' : '&'; - if ($CI->config->item('enable_query_strings') === TRUE OR $this->page_query_string === TRUE) + // Are we using query strings? + if ($this->page_query_string === TRUE) { - if ($CI->input->get($this->query_string_segment) != $base_page) + // If a custom first_url hasn't been specified, we'll create one from + // the base_url, but without the page item. + if ($first_url === '') { - $this->cur_page = $CI->input->get($this->query_string_segment); + $first_url = $base_url; - // Prep the current page - no funny business! - $this->cur_page = (int) $this->cur_page; + // If we saved any GET items earlier, make sure they're appended. + if ( ! empty($get)) + { + $first_url .= $query_string_sep.http_build_query($get); + } } + + // Add the page segment to the end of the query string, where the + // page number will be appended. + $base_url .= $query_string_sep.http_build_query(array_merge($get, array($this->query_string_segment => ''))); } else { - if ($CI->uri->segment($this->uri_segment) != $base_page) + // Standard segment mode. + // Generate our saved query string to append later after the page number. + if ( ! empty($get)) { - $this->cur_page = $CI->uri->segment($this->uri_segment); + $query_string = $query_string_sep.http_build_query($get); + $this->suffix .= $query_string; + } - // Prep the current page - no funny business! - $this->cur_page = (int) $this->cur_page; + // Does the base_url have the query string in it? + // If we're supposed to save it, remove it so we can append it later. + if ($this->reuse_query_string === TRUE && ($base_query_pos = strpos($base_url, '?')) !== FALSE) + { + $base_url = substr($base_url, 0, $base_query_pos); } + + if ($first_url === '') + { + $first_url = $base_url.$query_string; + } + + $base_url = rtrim($base_url, '/').'/'; } - - // Set current page to 1 if using page numbers instead of offset - if ($this->use_page_numbers AND $this->cur_page == 0) + + // Determine the current page number. + $base_page = ($this->use_page_numbers) ? 1 : 0; + + // Are we using query strings? + if ($this->page_query_string === TRUE) { - $this->cur_page = $base_page; + $this->cur_page = $this->CI->input->get($this->query_string_segment); } + elseif (empty($this->cur_page)) + { + // Default to the last segment number if one hasn't been defined. + if ($this->uri_segment === 0) + { + $this->uri_segment = count($this->CI->uri->segment_array()); + } - $this->num_links = (int)$this->num_links; + $this->cur_page = $this->CI->uri->segment($this->uri_segment); - if ($this->num_links < 1) + // Remove any specified prefix/suffix from the segment. + if ($this->prefix !== '' OR $this->suffix !== '') + { + $this->cur_page = str_replace(array($this->prefix, $this->suffix), '', $this->cur_page); + } + } + else { - show_error('Your number of links must be a positive number.'); + $this->cur_page = (string) $this->cur_page; } - if ( ! is_numeric($this->cur_page)) + // If something isn't quite right, back to the default base page. + if ( ! ctype_digit($this->cur_page) OR ($this->use_page_numbers && (int) $this->cur_page === 0)) { $this->cur_page = $base_page; } + else + { + // Make sure we're using integers for comparisons later. + $this->cur_page = (int) $this->cur_page; + } // Is the page number beyond the result range? - // If so we show the last page + // If so, we show the last page. if ($this->use_page_numbers) { if ($this->cur_page > $num_pages) @@ -190,67 +534,56 @@ class CI_Pagination { $this->cur_page = $num_pages; } } - else + elseif ($this->cur_page > $this->total_rows) { - if ($this->cur_page > $this->total_rows) - { - $this->cur_page = ($num_pages - 1) * $this->per_page; - } + $this->cur_page = ($num_pages - 1) * $this->per_page; } $uri_page_number = $this->cur_page; - + + // If we're using offset instead of page numbers, convert it + // to a page number, so we can generate the surrounding number links. if ( ! $this->use_page_numbers) { - $this->cur_page = floor(($this->cur_page/$this->per_page) + 1); + $this->cur_page = (int) floor(($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 : $num_pages; - - // Is pagination being used over GET or POST? If get, add a per_page query - // string. If post, add a trailing slash to the base URL if needed - if ($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, '/') .'/'; - } + // 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; // And here we go... $output = ''; - // Render the "First" link - if ($this->first_link !== FALSE AND $this->cur_page > ($this->num_links + 1)) + // Render the "First" link. + if ($this->first_link !== FALSE && $this->cur_page > ($this->num_links + 1 + ! $this->num_links)) { - $first_url = ($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; + // Take the general parameters, and squeeze this pagination-page attr in for JS frameworks. + $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 $this->cur_page != 1) + // Render the "Previous" link. + if ($this->prev_link !== FALSE && $this->cur_page !== 1) { - if ($this->use_page_numbers) - { - $i = $uri_page_number - 1; - } - else - { - $i = $uri_page_number - $this->per_page; - } + $i = ($this->use_page_numbers) ? $uri_page_number - 1 : $uri_page_number - $this->per_page; - if ($i == 0 && $this->first_url != '') + $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, ($this->cur_page - 1)); + + if ($i === $base_page) { - $output .= $this->prev_tag_open.'<a '.$this->anchor_class.'href="'.$this->first_url.'">'.$this->prev_link.'</a>'.$this->prev_tag_close; + // First page + $output .= $this->prev_tag_open.'<a href="'.$first_url.'"'.$attributes.$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 = $this->prefix.$i.$this->suffix; + $output .= $this->prev_tag_open.'<a href="'.$base_url.$append.'"'.$attributes.$this->_attr_rel('prev').'>' + .$this->prev_link.'</a>'.$this->prev_tag_close; } } @@ -259,82 +592,106 @@ class CI_Pagination { if ($this->display_pages !== FALSE) { // Write the digit links - for ($loop = $start -1; $loop <= $end; $loop++) + for ($loop = $start - 1; $loop <= $end; $loop++) { - if ($this->use_page_numbers) - { - $i = $loop; - } - else - { - $i = ($loop * $this->per_page) - $this->per_page; - } + $i = ($this->use_page_numbers) ? $loop : ($loop * $this->per_page) - $this->per_page; + + $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, $loop); if ($i >= $base_page) { - if ($this->cur_page == $loop) + if ($this->cur_page === $loop) + { + // Current page + $output .= $this->cur_tag_open.$loop.$this->cur_tag_close; + } + elseif ($i === $base_page) { - $output .= $this->cur_tag_open.$loop.$this->cur_tag_close; // Current page + // First page + $output .= $this->num_tag_open.'<a href="'.$first_url.'"'.$attributes.$this->_attr_rel('start').'>' + .$loop.'</a>'.$this->num_tag_close; } 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 - { - $n = ($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 = $this->prefix.$i.$this->suffix; + $output .= $this->num_tag_open.'<a href="'.$base_url.$append.'"'.$attributes.'>' + .$loop.'</a>'.$this->num_tag_close; } } } } // Render the "next" link - if ($this->next_link !== FALSE AND $this->cur_page < $num_pages) + if ($this->next_link !== FALSE && $this->cur_page < $num_pages) { - if ($this->use_page_numbers) - { - $i = $this->cur_page + 1; - } - else - { - $i = ($this->cur_page * $this->per_page); - } + $i = ($this->use_page_numbers) ? $this->cur_page + 1 : $this->cur_page * $this->per_page; + + $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, $this->cur_page + 1); - $output .= $this->next_tag_open.'<a '.$this->anchor_class.'href="'.$this->base_url.$this->prefix.$i.$this->suffix.'">'.$this->next_link.'</a>'.$this->next_tag_close; + $output .= $this->next_tag_open.'<a href="'.$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 + ! $this->num_links) < $num_pages) { - if ($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.'">'.$this->last_link.'</a>'.$this->last_tag_close; + $i = ($this->use_page_numbers) ? $num_pages : ($num_pages * $this->per_page) - $this->per_page; + + $attributes = sprintf('%s %s="%d"', $this->_attributes, $this->data_page_attr, $num_pages); + + $output .= $this->last_tag_open.'<a href="'.$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 $attributes + * @return void + */ + protected function _parse_attributes($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 https://www.w3.org/TR/html5/links.html#linkTypes + * @param string $type + * @return string + */ + protected function _attr_rel($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 */
\ No newline at end of file +} |