--- /dev/null
+<?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 = ''; // 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 $anchor_class = '';
+
+ /**
+ * Constructor
+ *
+ * @access public
+ * @param array initialization parameters
+ */
+ public function __construct($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 '';
+ }
+
+ // 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) != 0)
+ {
+ $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) != 0)
+ {
+ $this->cur_page = $CI->uri->segment($this->uri_segment);
+
+ // Prep the current page - no funny business!
+ $this->cur_page = (int) $this->cur_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))
+ {
+ $this->cur_page = 0;
+ }
+
+ // Is the page number beyond the result range?
+ // If so we show the last page
+ if ($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 : $num_pages;
+
+ // Is pagination being used over GET or POST? If get, add a per_page query
+ // string. If post, add a trailing slash to the base URL if needed
+ if ($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 $this->cur_page > ($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>'.$this->first_tag_close;
+ }
+
+ // Render the "previous" link
+ if ($this->prev_link !== FALSE AND $this->cur_page != 1)
+ {
+ $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
+ {
+ $i = ($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;
+ }
+
+ }
+
+ // Render the pages
+ if ($this->display_pages !== FALSE)
+ {
+ // Write the digit links
+ for ($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) ? '' : $i;
+
+ if ($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;
+ }
+ }
+ }
+ }
+ }
+
+ // Render the "next" link
+ if ($this->next_link !== FALSE AND $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;
+ }
+
+ // Render the "Last" link
+ if ($this->last_link !== FALSE AND ($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;
+ }
+
+ // 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 */
\ No newline at end of file
projects / living-lab-site.git / blobdiff