application/libraries/MY_Pagination.php
<?php
if (!defined('BASEPATH')) {
exit('No direct script access allowed');
}
class MY_Pagination extends CI_Pagination
{
public $container = 'page';
public function __construct() {
parent::__construct();
$this->first_link = '‹ ' . lang('First');
$this->last_link = lang('Last') . ' ›';
}
/**
* Fix & -> ? first param
* @return string
*/
public function create_links() {
// If our item count or per-page total is zero there is no need to continue.
if ($this->total_rows == 0 OR $this->per_page == 0) {
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 $this->page_query_string === TRUE) {
if (strpos($this->base_url, '?') === false) {
$this->base_url = rtrim($this->base_url) . '?' . $this->query_string_segment . '=';
} else {
$this->base_url = rtrim($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 $this->cur_page != 1) {
if ($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 {
$i = ($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; $loop++) {
if ($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 {
$n = ($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 < $num_pages) {
if ($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 . '">' . $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->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;
}
// 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;
}
public function create_links_ajax() {
$CI = &get_instance();
// If our item count or per-page total is zero there is no need to continue.
if ($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...
$output = '';
// Check for separated controls
if ($this->separate_controls) {
$controls_output = '';
}
// Render the "First" link
if ($this->cur_page > $this->num_links) {
$output .= $this->first_tag_open . '<a href="' . $this->base_url . 'offset' . '/' . $this->suffix . '">' . $this->first_link . '</a>' . $this->first_tag_close;
}
// Render the "previous" link
if ($this->cur_page != 1) {
$i = $uri_page_number - $this->per_page;
if ($i == 0) {
$i = 'offset';
}
if (!$this->separate_controls) {
$output .= $this->prev_tag_open . '<a href="' . $this->base_url . $i . '/' . $this->suffix . '">' . $this->prev_link . '</a>' . $this->prev_tag_close;
} else {
$controls_output .= $this->prev_tag_open . '<a href="' . $this->base_url . $i . '/' . $this->suffix . '">' . $this->prev_link . '</a>' . $this->prev_tag_close;
}
} else {
if ($this->separate_controls) {
$controls_output .= str_replace('>', ' class="disabled">', $this->prev_tag_open) . '<span>' . $this->prev_link . '</span>' . $this->prev_tag_close;
}
}
// Write the digit links
for ($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) ? 'offset' : $i;
$output .= $this->num_tag_open . '<a href="' . $this->base_url . $n . '/' . $this->suffix . '">' . $loop . '</a>' . $this->num_tag_close;
}
}
}
// Render the "next" link
if ($this->cur_page < $num_pages) {
if (!$this->separate_controls) {
$output .= $this->next_tag_open . '<a href="' . $this->base_url . ($this->cur_page * $this->per_page) . '/' . $this->suffix . '">' . $this->next_link . '</a>' . $this->next_tag_close;
} else {
$controls_output .= $this->next_tag_open . '<a href="' . $this->base_url . ($this->cur_page * $this->per_page) . '/' . $this->suffix . '">' . $this->next_link . '</a>' . $this->next_tag_close;
}
} else {
if ($this->separate_controls) {
$controls_output .= str_replace('>', ' class="disabled">', $this->next_tag_open) . '<span>' . $this->next_link . '</span>' . $this->next_tag_close;
}
}
// Render the "Last" link
if (($this->cur_page + $this->num_links) < $num_pages) {
$i = (($num_pages * $this->per_page) - $this->per_page);
$output .= $this->last_tag_open . '<a href="' . $this->base_url . $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 . $this->full_tag_close;
if ($this->separate_controls) {
$controls_output = preg_replace('#([^:])//+#', "\\1/", $controls_output);
$controls_output = $this->controls_tag_open . $controls_output . $this->controls_tag_close;
$output = $output . $controls_output;
}
return $output;
}
}