Method by which plugins and themes extend core WordPress functionality.

learn more… | top users | synonyms

3
votes
1answer
672 views

The 'user_has_cap' hook seems to take two page loads to trigger

This question relates to another question I asked recently (http://wordpress.stackexchange.com/questions/29009/how-to-assign-specific-users-the-capability-to-edit-specific-pages-posts-cus/), the ...
3
votes
1answer
4k views

Overriding The Loop with filter or hook

I'm trying to replace the $wp_query object for a specific category, without having to deal with creating a new template and creating a new WP_Query object there. My aim is to change the data ...
3
votes
1answer
1k views

Any Hook Called When Post Becomes Published?

Posts may be published either immediately or in the future. Suppose a plug-in wants to do something at the moment when the post becomes published and visible on the blog (I don't mean when the post ...
3
votes
1answer
234 views

Multiple wp_schedule_event cron jobs in plugin cause multi-execution

over the last week I have been working on some cron jobs for a real-estate website that has hundreds of updates/deletes and new posts added each day. I am very near the end now and looking to ...
3
votes
5answers
2k views

Wordpress auto login after registration not working

So I looked up a bunch of threads trying to figure out how to automatically log a user in after registration, and came up with this. function log_me_the_f_in( $user_id ) { $user = get_user_by('id'...
3
votes
0answers
41 views

How to hook into unregistering a widget instance?

I would like to hook into a widget instance after it is removed from a sidebar panel on the Appearances -> Widgets admin page. So if the instance was an active widget and then removed, I would like ...
3
votes
0answers
127 views

Featured image upload finished hook

I'm looking for a way to hook into the process of uploading a featured image. Ideally I would want to be able to do some stuff right when the upload has finished, before the thumbnails are generated. ...
3
votes
2answers
2k views

How to pass arguments to add_action() [duplicate]

I declared an action for a single event in Wordpress which accepts an array as an argument: $asins = array(); //I had to declare this since I'm getting a notice of undefined variable if I don't ...
3
votes
2answers
197 views

Wordpress scheduled task is called but not executed

I created a plugin with a cron to update all posts of a certain type every 5 minutes. I installed WP Crontrol to check if the cron is registered correctly and everything seems to be okay. This is how ...
2
votes
2answers
6k views

what is correct way to hook when update post

i try to hook when post is updated but all hook i try never executed except updated_post_meta add_action('updated_post_meta', 'my_function'); function my_function($post_id) { echo 'This is ...
2
votes
2answers
8k views

Use latest jQuery in WordPress (admin interface)

I want to use the latest jQuery (and jQuery UI) versions on my admin interface (editing a specific post type that I created). I tried this: // jQuery 1.x wp_register_script('jquery1x', 'http://ajax....
2
votes
2answers
2k views

Why isn't is_home() working correctly?

I put a if(is_home()) bit in my theme's functions.php and it doesn't seem to work. The function containing this bit is called on init so is_home should work already.
2
votes
3answers
3k views

Hook on trash post

I want to perform an action when I delete one of my custom post types, which hook should I use: wp_trash_mycpt or trash_mycpt My action should run solely when mycpt is in the 'publish', 'draft' ...
2
votes
2answers
135 views

Too many actions/filters!

New to wordpress here. The concept of actions/filters in and of itself is not too difficult to grasp. What I am overwhelmed by is the HUGE amount of actions and filters available. When I am looking at ...
2
votes
2answers
1k views

action lifecycle

I'm looking for a documentation page where wordpress action lifecycle is explained. Does it exist? I can't understand if init is called before admin_head or viceversa (even if the name is auto-...
2
votes
2answers
1k views

Wordpress Admin Tooltip hooks

I want to know if there is a way to use Wordpress Adminitration Tooltips (de gray and blue ones) that are shown one you update your worpdress (3.x). Showing the new features. Thanks!
2
votes
2answers
3k views

How do I “unhook” / de-register jQuery so that it's not called as part of wp_footer();?

I need to "unhook" jQuery from my wp_footer() ... it's being called automatically and I'm looking for something I can add to functions.php which prevents it from being called a second time in the ...
2
votes
2answers
5k views

Filter the URL of next_posts_link & previous_posts_link

I am working with the qTranslate plugin to create a multi-lingual website. The plugin does a great job of translation except for on the next_posts_link & previous_posts_link template tags. When ...
2
votes
3answers
619 views

Implementing DNS Prefetching with WordPress

I'm not sure whether my question sounds promising or not but what I'm going to ask is very much relevant. So please read the full question before down voting or flag. I'm trying to implement DNS Pre-...
2
votes
1answer
917 views

the_posts hook, which set of posts?

I want to modify search results. Currently I hook to the_posts and check wp_query->is_search to determine if I am looking at the search results page. However, I noticed that the_posts is executed ...
2
votes
2answers
4k views

Hook/action after WP_Query gets posts to query custom tables for post-related meta

I see that there are hooks for manipulating WP_Query before it gets its posts (parse_query, pre_get_posts), but I can't seem to find any hooks for after the WP_Query object is populated. I have a ...
2
votes
1answer
2k views

Why is save_post hook not running?

I am trying to save my meta box, I have something like function xxx_meta_box_callback() { add_meta_box('xxx-meta', 'xxx Details', 'xxx_meta_box', 'xxx-post-type', 'side', 'default'); ...
2
votes
2answers
47 views

How often do you need to register_post_type?

Assuming you write a plugin and hook into activation / deactivation to register_post_type is that good enough? Or do you need to do it every init? I'm looking for perf boosts and I want to reduce ...
2
votes
1answer
334 views

How and why can a hook call itself without causing recursion?

When looking in WP hooks' code, I often see hooks that call themselves. For example, this snippet from image_downsize(): function image_downsize($id, $size = 'medium') { if ( !...
2
votes
1answer
628 views

Change the footer text on the login page

I am customising the login page and would like to alter the footer text that takes the user back to the website. Ideally and as an example, changing it from the first image, to the second just below: ...
2
votes
2answers
705 views

Clarification on filters and hooks

I am about to start my first WordPress project and I have the task of moving customized core code that override the core into separate functions/files (this way it'll be easier to maintain when we ...
2
votes
2answers
259 views

Hook for URL request

I would like to make XML files downloadable, instead of allowing the browser to displaying them inline. I know I can use the Content-Disposition: attachment HTTP header (of course, better solutions ...
2
votes
2answers
2k views

How to use filter hook 'post_updated_messages' in coherence with action hook 'save_post'

I am trying to send out e-mail, SMS and IM notifications to group members of this WordPress website, whenever a WordPress page in their user group has been published/updated. I figured using the ...
2
votes
1answer
2k views

How can I remove “Proudly powered by WordPress” from twentyeleven without modifying footer.php?

How can I remove "Proudly powered by WordPress" from twentyeleven without modifying footer.php, and without creating a child theme? I'm looking for a php command, such as add_action, remove_action, ...
2
votes
1answer
2k views

Check before publishing, if already exist post with current custom field value

I have a custom post type with only 3 custom fields in it. $post_types = get_post_meta($post->ID,'post_types',true); $post_taxonomies = get_post_meta($post->ID,'post_taxonomies',true); $...
2
votes
1answer
2k views

How can I tell if I'm on a login page?

There are functions for is_home(), is_blog() is_single() etc... What's the best way to tell if I'm on a page that is requesting that I login? I guess that would just be the wp-login.php page.
2
votes
1answer
3k views

What is the 'admin_action_' . $_REQUEST['action'] hook used for?

There's an action hook triggered in admin.php called 'admin_action_'.$_REQUEST['action']. Unfortunately, it's a bit useless for plugins as it's triggered at the very end of admin.php, after everything'...
2
votes
1answer
3k views

Explanation of the “posts_join” and “posts_fields” filter hooks?

I'm new to the "posts_" filter hooks and wanted to know a few things from those in the know: In this question, someone posted an answer using posts_join that took a second parameter of $query: ...
2
votes
2answers
465 views

Is This A Correct Example Usage Of current_filter()?

Is this a good example of usage of current_filter()? <?php add_filter("_my_filter", "common_function"); add_filter("_another_filter", "common_function"); function common_function(){ $...
2
votes
2answers
91 views

do_action and hook methods

I am trying to understand how hook methods work in WordPress. I understand that when do_action is called WP looks for all registered listeners and invokes them according to set priority. How does ...
2
votes
1answer
258 views

How to modify an add_action() inside a loop of core function

Ok I want to edit bp_core_screen_signup() is which is a function of buddypress that used to process the registration form. Basically this funtion checks for any errors produced and then loops through ...
2
votes
1answer
2k views

Admin Post Update Redirection to Posts Screen

Is there a hook I can use that when a post is created or updated it goes back to the list/table page of all the posts. If it is also possible to target a post type as well that would be cracking. It'...
2
votes
2answers
907 views

Custom function for “Submit for Review” hook

So I manage a blog of about 15 contributors and 5 editors. I wanted to implement a system so that each time a contributor hits the 'Submit for Review' button, and email is sent to the editors to proof....
2
votes
2answers
2k views

Make W3 Total Cache “Empty All Caches” function purge varnish [closed]

Right now, when I perform "Empty All Caches" it doesn't send a PURGE request to varnish. The result is that varnish isn't being refreshed. Is there a way that I can make varnish purge it's cache when ...
2
votes
1answer
430 views

Schedule cron event from widget

Can I use wp_schedule_event() to set up a cron job from within a widget? I tried, but I can't make it work, The problem seems to be the $hook parameter. The function I'm trying to hook is located ...
2
votes
1answer
169 views

Create a plugin to change the action to which a function is hooked

I have a plugin that hooks a function on to the woocommerce_before_my_account action. I would like instead for the plugin to hook that function to the woocommerce_after_my_account action. If I ...
2
votes
2answers
302 views

Is there a hook before the user is authenticated?

I'm looking for a hook that can be used before WP reads the DB to authenticate the user's login credentials, but can't seem to find one anywhere. Does one exist? I tried add_filter/action('...
2
votes
1answer
170 views

Redirect logged in users if they are on a specific page

I'm trying to prevent a user access besides the admin to the registeration page and reset password page if they are already logged in. I have the following: function redirect_loggedin_users() { // ...
2
votes
2answers
762 views

Add site options UI in Multisite Sites > Infos page

I want to add meta fields for the sites in my network (such as a thumbnail and a category). I know how to do this using get/add/update_site_option, but I'm wondering where I could put the UI to manage ...
2
votes
1answer
375 views

Better post meta efficiency?

I work with websites which require using Post Meta for Post Objects within a particular Post Type. I often add a Meta Box to a particular Post Type, to provide additional settings for the new Post ...
2
votes
2answers
64 views

Searching a hook which triggers when deleting a post to get all comments

When deleting a post, all comments associated with this post get the status "post-trashed". I'm searching a hook for this event. Tried these one without success: comment_approved_to_post-trashed ...
2
votes
1answer
3k views

How to add hook to the_title() and get_the_title()

I've having trouble with accented characters now if i do utf8_decode() before echoing the title the problem is solved but instead of changing this all over my theme, can't I do this in one place that ...
2
votes
1answer
267 views

How to debug removal of rewrite rule flushing?

I use Custom Post Types. I try this: functions.php add_action( 'admin_init', 'flush_rewrite_rules' ); Now I’d like to remove this again. I try this: remove_action( 'admin_init', '...
2
votes
2answers
379 views

wp_ajax_[service] returning 0

I have a few Ajax services that I'm setting up. All of them require being logged in so I've attached hooks into the "wp_ajax_[$service]". The problem is when I call these services I just get a "0" ...
2
votes
2answers
284 views

Strict tag list - user should choose only existing tags for posts

While selecting tags for the posts the user is able to create new tags on fly. For example we have the tag 'animal' but the user misstpye it as 'aminal' - and Wordpress creates it. In our blog the ...