pagination with javascript / ajax, make it simple

[eluser]zenon[/eluser]
without doing great changes,

this is my pagination class that calls js function (also useful for ajax)

Warning: replace all "[removed]" parts with "[javascript]"

Code:

<?php

if (!defined('BASEPATH'))
    exit('No direct script access allowed');

class MY_Pagination extends CI_Pagination {
    
    var $js_func = ''; // js function to call
    
    function create_js_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 ($CI->uri->segment($this->uri_segment) != 0) {

            // 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
        
        // 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 >anchor_class . 'href="[removed]' . $this->js_func . '()">' . $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 >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 >anchor_class . 'href="[removed]' . $this->js_func . '(' . $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 >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 >anchor_class . 'href="[removed]' . $this->js_func .'('. $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 >anchor_class . 'href="[removed]' . $this->js_func . '(' . $this->prefix . ($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 >anchor_class . 'href="[removed]' . $this->js_func . '(' . $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;
    }
}

?&gt;

[eluser]zenon[/eluser]
config has the same behaviour of the old one,
excepts with js_func and cur_page exceptions, which replaces
base_url and uri_segment

file Controller example

Code:

$config['js_func'] = 'js_function_name';  
$config['cur_page'] = $current_page;

[eluser]Zero-10[/eluser]
I've been dying to see this ^^;

Where exactly do you place the first post code at? Is it in /library/? Sorry total nub here when it comes to these things

[eluser]zenon[/eluser]
[quote author="Zero-10" date="1309319333"]I've been dying to see this ^^;

Where exactly do you place the first post code at? Is it in /library/? Sorry total nub here when it comes to these things [/quote]

yes, put MY_Pagination.php in application/libraries.

Also remember to call

Code:

pagination->create_js_links

instead of

Code:

pagination->create_links

,

in order to keep alive the original function

[eluser]InsiteFX[/eluser]
In the future just replace s in script with $ then all you need to do is replace the $ with s

InsiteFX