Ajax - The core of WordPress uses Ajax only in the administration screens. For instance, Ajax is used for instant updates when you are doing comment moderation, and when you are adding and deleting items from lists such as categories, blogroll, and posts; Ajax is also the technology behind the ...

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32
votes
2answers
4k views

Ajax takes 10x as long as it should/could

I have just hit my first serious issue with WordPress and for someone that enjoys Ajax this is a biggy. I have an Ajax request that is taking 1.5 seconds to complete while using the Ajax API. If I ...
31
votes
1answer
3k views

What's the preferred method of writing AJAX-enabled plugins?

I'm wondering what the preferred method is for dealing with AJAX calls. Should one use the same plugin php file to process the POST or a separate one? Which is cleaner or safer?
11
votes
3answers
3k views

Adding admin-ajax.php to the frontend. Good or bad idea?

I love admin-ajax.php. But I hate having to localize in order to point frontend scripts to it, and I wish there was an equivalent, easy-to-find file for themes. (It also just bothers me to see ...
11
votes
2answers
2k views

How to cache json with wp-super cache

In a new project we are using wp-super-cache (the client's preferred plugin) to create the static html files for custom content types. But we are trying to figure out if everything is being cached ...
10
votes
2answers
2k views

Does the functions.php file ever get called during an AJAX call? Debug AJAX

Trying to figure out an issue a fellow programmer is having. I was wondering if the functions.php file get called at all when you do admin side AJAX? I know that when you do an AJAX call a part of ...
10
votes
1answer
4k views

How to manage ajax calls and JSON in wordpress

I have a custom post type that i want to access through jQuery - preferably using JSON. So first things first. creating a function that returns/echos json is easy enough, but how would I access it ...
10
votes
3answers
2k views

Load minimum WordPress environment

I made my own upload service for my website that is separate from WP, but uses WP to provide low level db functions and user verification. To do that, I include wp-load.php in my main script ...
10
votes
1answer
579 views

Using jQuery to delete data stored in wp_options

I wonder if anyone could advise me further on my problem. Part of my plugin stores log files for debugging purposes. I have successfully displayed them in a (div#log) in my admin page using jquery ...
10
votes
3answers
659 views

How to make comments work for a post loaded per Ajax?

I am currently loading a single post using ajax. While the post loading works ok, I cannot get the comments to load. Here is my code: My javascript to load the post: <script> ...
9
votes
3answers
3k views

Making my AJAX powered WordPress Crawlable

I read the following and try to apply this scheme to my website running WordPress: http://code.google.com/intl/fr-CA/web/ajaxcrawling/index.html If you visit my website at http://www.visualise.ca/ ...
8
votes
2answers
3k views

How to get a unique nonce for each Ajax request?

I've seen a couple of discussions about getting Wordpress to regenerate a unique nonce for subsequent Ajax requests, but for the life of me I can't actually get Wordpress to do it-- every time I ...
7
votes
1answer
3k views

How can I fetch loop of post titles via AJAX?

I have a list of the most recent post titles in sidebar.php. Here is an example of how that code looks: <?php $args = array('posts_per_page' => 20); ?> <?php $sidebar = new ...
7
votes
2answers
2k views

post formats - how to switch meta boxes when changing format?

Problem After realizing that post formats are pretty popular, but only a extremly rough drawn concept, i see that users will run into possible traps. Post format ... uses post meta fields & ...
7
votes
2answers
4k views

Open a Thickbox with content trough AJAX

I added a custom button to the TinyMCE editor, and I want to open WP's Thickbox when I click on it. How can I make it so that the tb_show() function loads the content I want with ajax? // the ajax ...
7
votes
2answers
898 views

Can I use the same nonce for multiple requests on the same page?

Or does this break the purpose of the nonce, which I admint I don't quite understand it? :) For example on two ajax requests that run on page load, or when something is clicked: $.ajax({ type: ...
7
votes
3answers
1k views

Help with 4.6. Attachment response object in JSON API plugin

I am a big fan of the JSON API plugin. The developer did a great job and I thank him very much. I am learning how to work with json and jquery and am trying to limit the information I get back from ...
7
votes
1answer
1k views

How to load wp_editor via AJAX

Does anyone know how o load wp_editor via AJAX in WordPress? My markup and editor is getting loaded properly but editor controls are not getting loaded properly, it may be because Javascript is not ...
6
votes
3answers
8k views

Admin ajax request return 0 with die()

So i'm using this configuration for an AJAX call in the administrative area (like this): add_action( 'admin_head', 'ajaxPerNgg' ); function ajaxPerNgg(){ ?> <script type="text/javascript" > ...
6
votes
4answers
761 views

Is there a JavaScript API? How to access public and private data in JS?

According to this post there is no built-in JavaScript API for Wordpress. Therefore developers who want to build on AJAX seem to come up all with their own solution which doesn't seem right to me. ...
6
votes
2answers
5k views

Enable Submit Comment Without Page Reload (Using Ajax)?

When user writes a comment and hits the submit button, WordPress reloads the page, before the comment is shown to the user. Is there an Ajax-based solution that allows users to submit questions ...
6
votes
3answers
938 views

WordPress Ajax Data Security

I am aware of nonces to check for intentions but can't make any sense if I can use them to restrict for database reads somehow? I mean, I am fetching records from the database using AJAX but I don't ...
6
votes
2answers
4k views

What is the simplest ajax upload plugin or script to be used with wordpress?

I'm trying to use image upload in my theme's options page and haven't found yet a simple ajax upload script with many tutorials or a good documentation, I just want a simple straightforward script so ...
6
votes
2answers
625 views

Using Backbone with the WordPress AJAX API

I'm attempting to build out a simple TODO plugin using Backbone and have run into an issue with the AJAX API. In order to get the correct AJAX call back you have to pass in the "action" parameter ...
5
votes
1answer
1k views

Ajax in a settings page (update_option is undefined)

I'm making a request to my plugin's php file via ajax and it's supposed to save some data with update_option(), but php throws an error: Call to undefined function update_option() I'm guessing that ...
5
votes
1answer
665 views

Why does WordPress add 0 (zero) to an Ajax response?

Unless I end Ajax processing function by exit() or die(), the Ajax function receives desired and correct output but following by 0. Any idea why is that happening? Is that meant to be like that or ...
5
votes
2answers
668 views

Creating Ajax backend for Specialised Page Template? Should admin-ajax.php be used?

We're scoping an upcoming project that will require the development of a large php web application within an existing wordpress site - this is for our use only and we've no intention of trying to ...
5
votes
2answers
4k views

Ajax and autocomplete

I got a set of meta boxes on a custom post type. Two of them are simple input/text-type fields, that should have autocompleted input: A) Another Custom Post Type B) Users Now I have the problem ...
5
votes
1answer
558 views

How to override WP_DEBUG for Ajax responses?

It is highly recommended practice (that I completely agree with) to develop with WP_DEBUG enabled. However it is merely inconvenient to see not yet fixed warnings in pages, but in Ajax responses they ...
5
votes
5answers
2k views

How can I make an Ajax login form work with FORCE_SSL_ADMIN enabled?

I'm working on a site that requires an https secured admin area and a secure front-end area as well where private information will be shown. My preference for user login is an Ajax-enabled widget that ...
5
votes
1answer
2k views

Call to undefined function add_action()

I created a Theme Options page where the user can edit some of the theme settings. Now I'm trying to save this options asynchronously but it seems I have some problems integrating the handler file ...
5
votes
2answers
808 views

Use AJAX in shortcode

I have the following code to the shortcode to display a random quote. Question: how to make a button display a new random quote? I mean, that would hit the button and show you a new quote (without ...
5
votes
2answers
254 views

username_exists() function can't be access without logging in

I'm using the following function in functions.php to check if a username exists in the DB function check_username() { $username = $_POST['user']; if ( username_exists( $username ) ) { ...
5
votes
2answers
307 views

Allow only new sub-pages to be created

Here is an amazing solution to restrict the creation of new parent pages, and I would want to use it, but the newly created sub-pages are saved only as drafts and this was not solved (see last ...
5
votes
1answer
2k views

AJAX search on post pages by custom post type

I'm having an issue creating an ajax search on my single post pages. I need to limit the search results to the custom post types "fod_videos" and "post" and category 12. My issue is the search is ...
5
votes
1answer
522 views

Make a video post redirect to next post after completion

I want to make video posts redirect to the next video post in it's category after it's over. I use both youtube videos and directly uploaded videos both of which I already know how to pull the ...
5
votes
1answer
201 views

Help making my pagination plugin better

I'm not sure if this is the right place to ask for this kind of help since is not an actual question but hopefully I can learn a thing or two. I'm developing a plugin (my first one) inspired in the ...
5
votes
1answer
374 views

Including Wordpress in RESTful API

I'm using a great little open-source product called Restler to provide a RESTful API to a Wordpress application. In order for this to work I want to be able to load the Wordpress environment within a ...
5
votes
1answer
635 views

External/non-WP rewrite rules

I have a fairly complex wordpress with multiple sub-directories: example.com/sub1/ example.com/sub2/ I'm trying to implement some history/bookmark support, and to do that I need the URLS containing ...
4
votes
1answer
9k views

Upload post thumbnail from the front end

We would like users to be able to upload the post thumbnail when editing posts. How would this be done. I would imagine it would make use of the ajax functions of wordpress. Any ideas, Marvellous
4
votes
2answers
291 views

How to process ajax requests correctly using ajax plugins

I've been stuck on this topic for a while. I followed Pippin's tutorial . According to a 2nd wordpress developer who I got advice from, this tutorial is now out of date/ not appropriate. He told me ...
4
votes
2answers
952 views

admin-ajax.php vs Custom Page Template for Ajax Requests

Is there any reason to use admin-ajax.php for ajax requests versus a custom page template? I didn't know about admin-ajax.php until recently, so what I had been doing is creating a custom page ...
4
votes
2answers
4k views

Why might a plugin's 'do_shortcode' not work in an AJAX request?

tl;dr: Contact Form 7's shortcode doesn't work in an AJAX request when called with do_shortcode functions.php add_action('wp_ajax_ps_get_survey_form', 'ps_get_survey_form'); ...
4
votes
2answers
655 views

the_title() and the_permalink() won't work on AJAX calls

I've run into a strange problem. I have a custom loop built with get_posts that works fine when loading the page normally: <?php $rows = get_posts(array( 'post_type' => ...
4
votes
1answer
15k views

Execute one AJAX request after another AJAX request finished

One JS file is making an ajax call. Within the success of this ajax call another AJAX call is made. The second call checks whether the email has already been registered. If it has been then the ...
4
votes
1answer
348 views

Registering AJAX callback function that is part of a class without instantiating the class in function.php

I'm not even sure if this is possible. But nevertheless I thought of asking. I'm in habit of wrapping/grouping AJAX calls for a particular need within a class. See below. class my_class { ...
4
votes
3answers
335 views

WordPress function that makes HTML safe to be sent via AJAX request

What is correct way to send HTML back to an AJAX request in WordPress? I currently have this: add_action( 'wp_ajax_nopriv_get-location-info', 'sc_locations_get_location_info' ); add_action( ...
4
votes
2answers
385 views

AJAX function returning -1

I recently developed a small plugin for my site, that uses AJAX, and now I am trying to implement the same AJAX techniques for the same site's templates, but I keep getting -1 as the result, here is ...
4
votes
1answer
1k views

next_posts_link not working for loop called with ajax

On my homepage I display a loop of posts that I allow to be replaced by ajax search results and other custom loops. Those results are returned in a template with a custom wp_query. The issue is ...
4
votes
1answer
3k views

How To create ajaxed wp-pagenavi?

I'm using WordPress as a Facebook platform and have a page that shows posts from 2 different categories. Each category has it's own pagination using wp-pagenavi. In order to stay in Facebook I need ...
4
votes
1answer
1k views

Multiple ajax nonce requests

I have a feature in my current project that will be allow multiple ajax requests - I've got a single nonce request worked out (via this tute), but am somewhat unsure how to figure in multiple nonce ...