Method by which plugins and themes extend core WordPress functionality.

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3
votes
2answers
379 views

Which hook should be used to validate custom form fields on the login form?

I've added a custom input field with login_form hook. So, I need to process the post data to validate. I've used the lostpassword_post for lostpassword_form and works great, but I cant find a hook to ...
3
votes
1answer
182 views

How should I intercept the main query and inject custom join / order by / group by criteria

I have a CPT that is a member of two separate taxonomies. On the taxonomy archive page for one of the taxonomies, I need to further group and sort on the second taxonomy like so: ...
3
votes
1answer
377 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
944 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 ...
2
votes
2answers
7k 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', ...
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
2answers
2k views

How do I implement the Wordpress Iris picker into my plugin on the front-end?

This question here is asking the same question as I am, but there were no adequate answers nor a selected correct answer so I am asking again hoping if I ask in a more coherent manner I might get a ...
2
votes
2answers
663 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
1answer
178 views

What does (10, 2) mean when used with add_filter

Please tell my what is 10, 2 in below mention code: add_filter('nav_menu_css_class', 'add_active_class', 10, 2 ); function add_active_class($classes, $item) { if($item->menu_item_parent == 0 ...
2
votes
1answer
1k 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
82 views

How to make post and comment count unclickable with dashboard_glance_items hook

I have a multi author site and I have already used some hooks to stop them from viewing other author's posts and media. Now, in the Wordpress Dashboard in the "at a glance" section it shows them the ...
2
votes
1answer
226 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
2answers
3k views

Add subtitle to Woocommerce product title

I'm using WooCommerce on a site built with Pagelines Framework. I need to have a subtitle/customisable field appear under the product name anywhere it appears in the site. As it is, WooCommerce ...
2
votes
2answers
186 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
1answer
1k 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

why doesnt is_home() work in functions.php

I'm pulling in scripts.php through functions.php. this is in scripts.php but for some reason, wordpress isn't recognizing is_home(). i've tried resetting the query, but to no avail. Am I hooking into ...
2
votes
1answer
1k 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

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 ...
2
votes
1answer
2k 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
408 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
1answer
81 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
2answers
422 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 ...
2
votes
2answers
1k 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
3k views

How can I see all the actions attached to an “add_action” hook?

I'm working with the admin bar and trying to debug some of the menus and their priorities. I know several callbacks get bound to actions, such as this one: add_action( 'admin_bar_menu', ...
2
votes
2answers
3k 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
2answers
4k 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
1answer
363 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
3answers
321 views

Move excerpt meta box to above content editor

I found a WordPress hook called "edit_form_after_title" to add a text box after the title. How can I use this hook to display the excerpt after the title while creating a new post?
2
votes
2answers
778 views

How to create notification on frontend using heartbeat api for multiple custom post types

How can I get correct action hook on publish_posts for multiple custom types ? I have a following problem, I can use this hook for posts or single custom post_type, but I don't know correct hook for ...
2
votes
2answers
326 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
2answers
60 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
1k views

WP Multisite: Adding pages on blog creation by default

I’d like to have a page added by default when a new site is created with WP Multisite. So I have my function that creates two pages: function my_default_pages() { $default_pages = ...
2
votes
1answer
163 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
1answer
535 views

What hooks/filters are there to alter selected terms on post save?

Very simple, where would I hook/filter to alter the users selection of terms when they save a post (Update or Add)? I need to hook in all instances; such as when saving a post via AJAX, saving when ...
2
votes
1answer
412 views

In what sequence are the hooks fired when a post is “published”?

I would be grateful if someone could point out a link. I understand this may have a very lengthy answer but I searched and couldn't find any resource. Alternatively, it would also be nice if someone ...
2
votes
1answer
309 views

Post-Registration, post-meta hook?

Is there a hook in WP to access meta data of a user JUST after they have registered and meta data has been added to the database? I was reading to use profile_update, but wouldn't that be invoked ...
2
votes
1answer
135 views

Showing Notifications While Activating Plugin

I want to give errors like this, while activating my plugin. Which hooks should i use ? Can you share simple examples ? In shortly,when user activate my plugin, is a directory's CHMOD isn't 777 , ...
2
votes
2answers
3k views

When calling wp_title(), do you have to create some kind of “title.php” file?

... or does wp_title() already handle the various contexts in your blog? This could clarify for me how I can achieve a reusable index.php file without having all the conditional statements inside it ...
2
votes
2answers
2k views

Get password when user registers and save it sha1 into database

im working on a website where the users can connect with iphone to some functions of it by using a sha1 encrypted password. In other words the plain password of wordpress encrypted in sha1. In the ...
2
votes
3answers
307 views

Is it possible to remove this action? (as it's added just before it's called)

In wp-signup.php there are these lines: add_action( 'wp_head', 'wpmu_signup_stylesheet' ); get_header(); I need to remove wpmu_signup_stylesheet from the wp_head action, but I seem to be ...
2
votes
1answer
1k views

hooks & filters and variables

I was updating the codex page example for action hooks, while playing around to get some reuseable functions done (originally for some Q over here @WA). But then i ran into a problem i wasn't aware of ...
2
votes
1answer
72 views

Am I using the right hook for removing quicktags on the admin TinyMCE?

This is more of an excercise than something for a client. Anyway, I'm trying to disable the quicktags when you're on the dashboard and you click on Comments > Edit Comment. On that screen, there's a ...
2
votes
1answer
99 views

Security around save_post hook

There are a lot of examples using the save_post hook, that include adding and verifying a nonce, and checking the user has appropriate permissions before you continue. Is this necessary? When ...
2
votes
2answers
79 views

What's the earliest point I can get the queried object ID?

I'm writing a supplement plugin to Wordpress Mobile Pack because I would like to use the default theme on pages that are assigned a certain page template. My plugin will only deal with the mobile ...
2
votes
3answers
264 views

how to limit edit_form_after_title hook to page and post edit only?

heelo, I want to use this great hook edit_form_after_title it was announced on December 1, 2012: http://make.wordpress.org/core/2012/12/01/more-hooks-on-the-edit-screen/ it curreclty hook for : ...
2
votes
1answer
625 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. ...
2
votes
2answers
264 views

Can user_register output the password?

I'm trying to output the password of a newly created user in plain text using the user_register hook as explained in this answer. However, upon doing a var_dump of $_POST, I don't see any password ...
2
votes
2answers
906 views

How to modify post content before writing to database?

Hi~ I'm back again and I'm trying to add another function to the script I was working on a plugin that notify my friends of new post that mentions(@) them. Now I want to change the plain text of my ...