Method by which plugins and themes extend core WordPress functionality.

learn more… | top users | synonyms

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
44 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
2answers
255 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
319 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
568 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
252 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 ...
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
456 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
237 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. ...
2
votes
2answers
844 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
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
2k 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
425 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
2answers
182 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 ...
2
votes
1answer
146 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
705 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
350 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
63 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
2k 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
251 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
265 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 ...
2
votes
1answer
11k views

The hook for the AJAX Add to Cart button?

Anyone here ever had the need to add the AJAX add to cart button (the one located on product archives) on a custom query post output? Do you mind sharing the hook? I can't seem to find the correct ...
2
votes
1answer
775 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
455 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
404 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
2answers
3k views

Adding custom text in items titles from wp_nav_menu()

I need to add something after each title of a specific menu called by wp_nav_menu() I tried add_filter('wp_nav_title', 'testing_stuff'); with function testing_stuff() { $item->title = ...
2
votes
1answer
149 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
372 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
2k 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
55 views

Over write plugin templates

Is that possible for overwriting a plugin templates via making a folder in theme file and copy the file in that folder and altering the content [both folder and file name have the same name as ...
2
votes
1answer
357 views

When can you get current page ID and initialize hooks right after?

I'm developing a plugin and need to know on what page user is and then add specific hooks and filters for that page. And my problem is that is_page() and the_ID() doesn't work outside of wp, ...
2
votes
1answer
126 views

Send an email when custom post type category is changed

This is the first time I've attempted to write an action hook. My CPT has 4 categories. I'm trying to make WP automatically sends an email notification when the category is changed. By change I ...
2
votes
1answer
276 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
207 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
168 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
2answers
434 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
2k 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 ...
2
votes
2answers
374 views

Detect type of post status transition

I have a function on my site that it supposed to run when a new post is published (email push notification), with the exception of the same article updated (i.e publish_to_publish transition, I don't ...
2
votes
2answers
232 views

How to check what kind of saving it is?

I use save_post hook, and I have to know inside this hook function, whether it is a publishing ( draft to publish ) or is it an updating, like publish to publish or draft to draft. Is there a way to ...
2
votes
1answer
64 views

comment_email hook doesn't seem to work for comment editor field

I am building a plugin that allows users to PPK encrypt their users' IP/email data. Thus, IP/email data is set to dummy values in the comments table and encrypted values are stored in corresponding ...
2
votes
1answer
368 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" ...