Method by which plugins and themes extend core WordPress functionality.

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0
votes
4answers
2k views

Remove Page Title from Static Frontpage

I'd like to remove the post title from my static frontpage. Just that page. I've created a child theme from a free Press75 theme. So I'd like to make this change in my child theme's function.php. I ...
3
votes
2answers
639 views

Seeking clarification on page request life-cycle

I'm just trying to get my head around the "life-cycle" of a typical page request in WordPress. The Action Reference page lists 38 actions that occur during a typical page load, but two things aren't ...
5
votes
3answers
4k views

Which hook should be used to add an action containing a redirect?

I want to build a plugin that grabs certain url params from the query string to build a new query string for the same page. I'm following the excellent the Professional WordPress Plugin Development ...
3
votes
3answers
3k views

Hooking a function onto the sidebar?

I'm looking for a way to add some content to the top of the sidebar when it get's loaded. I've tried hooking onto the get_sidebar action as referenced here, but it seems to override the sidebar call ...
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 ...
3
votes
3answers
2k views

Wordpress hook before inserting post into database

I need to do check the inserted post for certain keywords and perform some functions depending on the keywords found. is there a wordpress hook that executes "just before the post is inserted into ...
10
votes
1answer
6k views

how to limit search to post titles?

Is there a way to limit search to post titles? I know I can modify query.php core file but there must be a way to do it with hooks right? Thanks in advance!
1
vote
2answers
1k views

post meta data clearing on autosave

For starters I am using this GREAT answer to achieve custom post types as well as a custom way to insert those post types into other pages, you can view that answer here: Custom field/meta populated ...
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 ...
5
votes
5answers
745 views

Implementing advanced add_* function wrappers

add_action() and add_filter() are major functions. However in some scenarios add one more function and hook it somewhere approach gets bulky and inconvenient. I had determined for myself several use ...
1
vote
3answers
299 views

How to find hooks as per Just-In-Time approach?

How can I follow Just-In-Time approach in hooking up my function to an action? I mean everybody just attach the functions to a very early stage like init which leaves the scope of optimisation. I saw ...
0
votes
2answers
756 views

Categories widget show empty?

Is there a way I can display all categories in the categories widget that comes with wordpress. I do not want to have to edit the core files and I want to stay away from rewriting the widget, but if ...
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 ...
1
vote
2answers
2k views

Is there an “Add Page” hook?

I'm looking for the action hook corresponding to the click on the "Add page" link. Any idea? Thanks !
2
votes
1answer
945 views

How to change title attribute returned by comments_popup_link()?

I can change label of comments by altering Comment(s) from parameter of following function: comments_popup_link('No Comments;', '1 Comment;', '% Comments;'); But, seems that title attribute is ...
0
votes
1answer
606 views

Does admin_print_scripts-$hook_suffix work for nested paths to individual files?

Can the hook admin_print_scripts-$hook_suffix be used for a hook which has been created like $hookname = get_plugin_page_hookname("my-quiz/lib/admin/$code_page", '' );? .. where $code_page is ...
0
votes
1answer
265 views

How to add or delete default value theme options while activate and deactivate theme

I want to add & reset default value for my theme options while activate and deactivate a theme More clearly something like this if(theme active) add_option(); // add new option to the theme ...
1
vote
3answers
528 views

Good tools for locating hooks in a wordpress page/admin interface/blog post?

I've recently started using the Hikari Hooks plugin for Wordpress as it seems to allow you to get a good idea of what do_actions are being called on the page, so that you can easily find out where ...
1
vote
2answers
313 views

How to get all of the activate_plugin action parameters?

I am trying to hook into activate_plugin. I know that activate_plugin has 1 required param and 2 optional ones. I am trying to acquire all 3. Here's my setup: // create plugin settings menu ...
4
votes
3answers
6k views

add_action hook for completely new post?

publish_post Runs when a post is published, or if it is edited and its status is "published". Action function arguments: post ID. -Plugin API Documentation I've added the publish_post ...
1
vote
2answers
935 views

From what hook on is it possible to conditionally add actions?

I tried to have a siderbar registered at the "init" hook based on a variable from the theme options array indicating whether the sidebar should be used in the design. Now it appears that that the ...
0
votes
2answers
215 views

It's okay if I do not write add_action()

I downloaded various themes on net and I found on functions.php they write something like this Example to remove inline comment style. function demo_remove_recent_comments_style() { add_filter( ...
1
vote
3answers
1k views

How many times can I hook into the same action?

I have a theme which includes some setup, using after_setup_theme but I'd like to write my own functions which also need to run after_setup_theme. I'd prefer to keep my stuff in a separate file. Can I ...
1
vote
1answer
445 views

Proper indentation of code generated inside hooks

I really like having my code all properly indented and all, but all the code generated by wordpress, like the one that appears on the header when we use wp_head(), loses all the indentation. I think ...
1
vote
1answer
479 views

Event Calendar using insert_post_data after save_post and insert_post after post_transition draft_to_schedule

OK, I'm taking on the dreaded task of developing an event calendar for my site and have gotten a bit stuck. I'm open to any and all ideas but here's what I'm doing and what I'd like to do. I'm ...
1
vote
1answer
487 views

A good way to add a different background image for each page?

I'm working an a Thematic child theme wherein I need to have a unique image decorating each of the site's main pages, from a pre-defined set of permanent images. It would also be ideal to have one of ...
9
votes
5answers
7k views

Theme Activate Hook

I would like to write a function to email me the URL of the website when my theme is activated. What is the hook initiated when the theme is activated?
0
votes
1answer
368 views

Which are the hooks run before/after when a category's deletion?

What are the actions that a plugin can hook on to for processing when the user deletes a category?
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: ...
1
vote
3answers
10k views

Remove title attribute from images

I'm looking for a way to remove the title attribute from images, preferably through using a hook or a filter. Most clients don't bother giving images a proper title, thus eliminating the purpose of ...
0
votes
2answers
1k views

Are there action hooks for comments?

This is for a personal-use plugin I'm trying to make. I want to submit a comment from site A to my blog (sort of like sending trackbacks/pingbacks but a full comment). For instance, on site A I have ...
1
vote
3answers
453 views

Insert all post IDs in new database table

I have a plugin which creates a new database table. Upon activating the plugin is there a way to insert all my posts ids into that table? Right now I'm using an action hook to immediately insert the ...
2
votes
1answer
4k views

add_action('wp_ajax_[action name]', myfunction) problem

I'm trying to integrate ajax in wordpress using the wp codex guidelines. In the PHP I added: wp_enqueue_script ( 'my_ajax', ADMIN_URL . 'js/ajax.js','jquery','1.0.0' ); wp_localize_script( 'my_ajax', ...
6
votes
4answers
7k views

Auto-retrieve YouTube Image for Thumbnail?

I have a custom post type that accepts a YouTube embed HTML snippet, title, and a featured image. Currently, I'm going and finding an image for the featured image, but ideally I would be able to ...
0
votes
1answer
512 views

INSERT in table row fatal error

I just discovered this wonderful message board :-) Hopefully someone can help me with a Wordpress issue I can't figure out.. I added a hook to my plugin file to insert the post id of the immediate ...
2
votes
1answer
3k views

Best Practices for Creating and Handling Forms with Plugins?

I'm writing a plugin that creates and handles a simple form. This has been my approach sofar, but it's turned out to have some major flaws: 1) On plugin activation, create a blank page for the form ...
2
votes
1answer
378 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
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', ...
11
votes
3answers
2k views

get_template_part vs action hooks in themes

It seems to me both of these afford the opportunity for the end user to modify a theme without actually editing the themes files (via child themes). My question is, is one method preferred over the ...
7
votes
3answers
4k views

Are there any hooks that alter the 404 logic?

Provided you have a 404 page defined in your theme, Wordpress will display a 404 page if "tag" is defined in $wp_query->query_vars, and there are no posts matching that tag. I'm writing a plugin that ...
1
vote
1answer
1k views

How to check if certain plugin exists and in expected version

I've created plugin that goes to wordpress plugin repositories. Now, I need to create another plugin (sub plugin or child plugin you may call) that require this certain plugin to be already installed ...
1
vote
1answer
256 views

Executing Arbitrary Code at a Specific URL without Creating a Post or Page?

I am trying to figure out which hooks I can tie into in order to read the incoming URL prior to the query actually being run. A quick look tells me maybe wp_loaded or posts_selection would be good ...
3
votes
1answer
976 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 ...
0
votes
1answer
494 views

Hook to See if Comment got a Reply?

Okay I know the title is pretty vague but I didn't know how to articulate it. Basically, I want a plugin that sends email notifications to users who opted-in only if they specifically got replied to. ...
6
votes
3answers
5k views

Calling a Function After New Post Creation for a WordPress Custom Post Type?

Assume I created a new post type 'product'. Is there a way to perform a function (user created) when this new 'product' post has been created?
6
votes
3answers
1k views

Making Custom Fields Standard in the Admin UI

I've added a few different custom_post_types to my Wordpress 3 installation. They are all a bit different from eachother, and should store unique information in custom_fields. But while one may store ...
0
votes
2answers
301 views

Using Custom Fields to Trigger Specific Actions on Saving a Post?

Can custom fields be used to determine specific actions upon saving a post to the database? Which action(s) make this possible, since adding post medata seems to always occur after saving a post and ...
2
votes
2answers
422 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(){ ...
19
votes
2answers
8k views

Difference Between Filter and Action Hooks?

I have been looking at the plugin API a bit more in depth recently and I was wondering what real differences there were between action and filter hooks. They both are events that receive data as a ...
3
votes
5answers
7k views

Adding onload to body

I'm currently trying to develop a plugin that will embed a Google Earth Tour into a WP post / page via a shortcode. The issue I am running into is that for the tour to load, I have to add an ...