Geek asks and answers

Dynamically changing navigation links (next and previous) in Wordpress via AJAX

I have on my Wordpress site, inside a single.php loop, a select tag in which the parameters are messages of the current category returned by a user request.

When changing the selected option, I have many javascript functions that work well, but the last function among them ( function f_next-previous) does not seem to work.

The purpose of this function is to update the next and previous links without reloading the page.

The code relative to the navigation links (next and previous) in my template works well and higher:

<div id="nav-above" class="navigation">

<div class="nav-previous"><?php previous_post_link( '%link', '<img height="34" src="' . get_bloginfo("template_directory") . '/images/previous.png" />' ); ?></div>

<div class="nav-next"><?php next_post_link( '%link', '<img height="34" src="' . get_bloginfo("template_directory") . '/images/next.png" />' ); ?></div>

</div><!-- #nav-above -->

The javascript code of this function:

function f_next-previous(id)
{
       $.ajax({  
       cache: true,  
       type: "GET",  
       timeout: 5000,   
       url: 'wp-content/themes/twentyten/pages/next-previous.php?p='+id,  
       success: function(msg)  
        {  

    $('#nav-above').html(msg);

        },  
        error: function(msg)  
        {  
           alert("Your browser broke!");
                return false;
        }  
});

}

File contents next-previous.php:

<?php
$p=$_GET['p']; 
require( '../../../wp-load.php' );



$my_query = new WP_Query();
$my_query->query(array( 'post__in' => array($p)));

if ($my_query->have_posts()) : while ($my_query->have_posts()) : $my_query->the_post();  ?>


<div class="nav-previous"><?php previous_post_link( '%link', '<img height="34" src="' . get_bloginfo("template_directory") . '/images/previous.png" />' ); ?></div>
<div class="nav-next"><?php next_post_link( '%link', '<img height="34" src="' . get_bloginfo("template_directory") . '/images/next.png" />' ); ?></div>

<?php

endwhile;
endif;

?>

php , p, . JQuery , AJAX . ?

UPDATE: , single.php, AJAX:

   <form method="post" action="">  

    <select class="select2"  name="" id="" >
    <option value="<?php the_ID();?>"><?php the_title();?></option>

    <?php 
global $post;
$paged = get_query_var( 'paged' ) ? get_query_var( 'paged' ) : 1;
$myposts = get_posts("paged=$paged&category=4");

foreach($myposts as $post) :?>

        <option value="<?php the_ID();?>"><?php the_title();?></option>

        <?php endforeach;
        wp_reset_postdata(); ?> 

        </select>
        </form>
+5
1

-, , , , , AJAX wordpress. hakre : http://codex.wordpress.org/AJAX_in_Plugins#Ajax_on_the_Viewer-Facing_Side.

, - AJAX Wordpress, wp-admin/admin-ajax.php. AJAX . , "admin" . ( ), admin-ajax.php , .

:

1. JavaScript, AJAX, :

    $(document).ready(function() {
        $('.select2').change(function(e) {
    e.preventDefault();

    var v = $('.select2 option:selected').val(); 


            $.ajax({
                type: "GET",
                url: "wp-admin/admin-ajax.php", // check the exact URL for your situation
                dataType: 'html',
                data: ({ action: 'nextPrevious', id: v}),
                success: function(data){

                $('#nav-above').html(data);

                },
                error: function(data)  
                {  
                alert("Your browser broke!");
                return false;
                }  

            }); 

    }); 
});

, Wordpress JS script ( footer.php wp-footer())

2- :

functions.php ( ), :

add_action('wp_ajax_nextPrevious', 'nextPrevious');
add_action('wp_ajax_nopriv_nextPrevious', 'nextPrevious');

nextPrevious , :

function nextPrevious() {

$p= $_GET['id'];
$my_query = new WP_Query();

$my_query->query(array( 'post__in' => array($p)));

if ($my_query->have_posts()) : while ($my_query->have_posts()) : $my_query->the_post(); ?>



 <div class="nav-previous"><?php previous_post_link( '%link', '<img height="34" src="' . get_bloginfo("template_directory") . '/images/previous.png" />' ); ?></div>

<div class="nav-next"><?php next_post_link( '%link', '<img height="34" src="' . get_bloginfo("template_directory") . '/images/next.png" />' ); ?></div>

<?php endwhile;
endif;                  

wp_reset_query();

die();

}

die, .

AJAX Wordpress, Google .

+9

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