WordPress Plugins allow easy modification, customization, and enhancement to a WordPress blog. Instead of changing the core programming of WordPress, you can add functionality with WordPress Plugins.

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4
votes
1answer
113 views

How Do I Load My Action Earlier Enough?

With add_action, I want to intercept as early as I can in my plugin and send a 304 Not Modified header per some rules. Does anyone know what the order is of events? When I view this page, it seems to ...
4
votes
2answers
2k views

How-to implement admin Ajax inside an admin WP_List_Table?

I am new to WordPress if someone will help me I will be very appreciate. There is parameter ajax "true" but in docs. wasn't said how to implement Ajax using WP_List_Table Class? parent::__construct( ...
4
votes
2answers
48 views

What is the correct way for a theme to support plugin UIs?

For instance if my plugin is creating a form on a page, what can I do to make it as easy as possible for theme developers to skin the form too?
4
votes
3answers
13k views

How to add a javascript snippet to the footer that requires jQuery

I know I can add a script file to the footer of wordpress that requires jquery using this code: <?php function my_scripts_method() { // register your script location, dependencies and version ...
4
votes
1answer
160 views

How Can I Add a Filter to Class Instance Only?

I have a custom class which I use for several cases extending it, for example class A { public function show_things() { print_r( apply_filter( 'yet_another_filter', array( 'coffee', ...
4
votes
3answers
61 views

How to sync with plugins update after I have done manual optimizations?

I have several WordPress running plugins on my site and as per suggestions of wordpress performance optimizations I am planning to do the optimizations on plugins myself. However, that will mean ...
4
votes
1answer
103 views

Output in XHTML or HTML 5 for plugins?

I'm currently writing a plugin that displays some images - possibly with captions. So, I was wondering whether to use XHTML (<div>s and <span>s) or HTML 5 (<figure> and ...
4
votes
1answer
761 views

How do I “replace a function via plugins” in WordPress?

I'm new to WordPress and am not understanding their docs. What I'd like to do is to replace the wp_hash_password (and a few other password related functions) with my own. I've already written the ...
4
votes
3answers
1k views

How to output message during plugin activation

I am developing a plugin, but during the activation phrase I am constantly facing bugs. However there is no easy way to display error messages, since echoing stuff would result in 'unexpacted output' ...
4
votes
1answer
763 views

Is it possible to add an admin page using add_submenu_page() and pass a var in the query string?

I am making a plugin and I have a bunch of different data types that I am creating edit pages for. I'd rather not have to create a separate function to add each one to the admin menus, since they're ...
4
votes
4answers
1k views

How to auto-upgrade my plugin?

How do I have my plugin pop up with that New version available. Upgrade Automatically dialog to appear when my plugin has a new version? Specifically for plugins not hosted on the WP.org repository.
4
votes
1answer
1k views

Admin config screen without menu

I want to create a sub config from some page on admin panel, eg: I've set config menu this way: add_menu_page( 'E+', 'CRE+', 8, 'cr_e_plus_user_config', 'cr_e_plus_user_config'); add_submenu_page( ...
4
votes
3answers
604 views

How to delete custom taxonomy terms in plugin's uninstall.php?

I am writing my plugin's uninstall.php file and would like it to delete any terms that were created in the plugin's custom taxonomy. In the plugin's uninstall.php file I am using this: // Delete all ...
4
votes
1answer
306 views

How to get vim to autocomplete WordPress API functions?

I guess built-in omnicomplete is a start, but perhaps we're talking some neocomplcache plugin module or something themsuch? Googling "vim wordpress autocomplete" doesn't really give much.
4
votes
2answers
1k views

Add custom user capabilities before or after the custom user role has been added?

Should custom user capabilities be added before the custom user role has been added, or the other way around? add_role() asks for and array of $capabilities in the third parameter of the function. ...
4
votes
1answer
92 views

“Donate to this plugin” for WordPress.org Plugin Authors

I recently saw a link titled "Donate to this plugin >" link on a WordPress theme (and then I did!). How is this added to a plugin's page on wordpress.org? Here's a screenshot:
4
votes
1answer
764 views

Creating a user's own folder on user registration

I need a plugin or some guidence on creating a user's own folder on user registation. For example...A user clicks on Register and registers ... I need wordpress to create a directory which would be ...
4
votes
1answer
323 views

How to Change the Entire WordPress Admin panel Look and Feel?

I am trying to change the WordPress Admin panel look and feel for depending upon the different role types that are in WordPress. How can create/assign different themes for each role i.e. Editor > ...
4
votes
1answer
346 views

Must-use plugins autoloader: How to use get_plugins() correctly?

My autoloader class is responsible for loading must-use plugins that do not sit in the root of the mu-plugins folder. To locate them, I need to use the get_plugins() function. According to Codex, the ...
4
votes
1answer
183 views

Is it worth checking if class_exists when developing a plugin and how to do it?

I'm learning WordPress plugin development using OOP approach. In most resources before declaring a class there is usually a check if class exists class_exists(). Is it a good approach to check this ...
4
votes
1answer
589 views

Upload file to remote storage

I am looking to overwrite the existing upload functionality to save the file on a remote storage service. The remote storage has an HTTP interface that allow me to post file and return an addressable ...
4
votes
3answers
463 views

Handling jQuery Component Collision

In plugin development, what is the best practice to prevent jQuery component collision on the front end? For instance, let's say I include the jQuery Apprise dialog in a plugin that loads this on the ...
4
votes
3answers
1k views

Widget development - Drop down options won't save

So, i successfully managed to add a drop down option, the problem is when i click save all of the options are removed, however the chosen option is implemented successfully. Here is the relevant ...
4
votes
3answers
3k views

Add Dividers or Separators Between Nav Menu Items

Does anybody have an idea on how to allow a user to drop in separators or dividers between certain nav menu items? Google only seems to bring up rookie CSS tips for first/last child selectors but I ...
4
votes
2answers
932 views

Wordpress as College Application System (Embark)

Anyone knows of any plugin or anyone has been using WordPress to serve as a College Application system similar to those by Embark? If not, I'm looking for idea of using current plugins to accomplish ...
4
votes
1answer
924 views

Prevent notice and warnings in error_reporting?

When turning opn WP_DEBUG and WP_DEBUG_DISPLAY, I get tons of warnings and notices. I have tried to remove the warnings by doing a @ini_set('error_reporting', 1) to only show E_ERROR, but I still get ...
4
votes
1answer
356 views

Writing a plugin that notify my friends of new post that mentions(@) them

For example, I write a new post with content "Today I'm happy, because I finally met the girl that @David told me about bla blah..." Once the post is published, there should be an email notification ...
4
votes
3answers
3k views

Change the_title() of a page dynamically

I'm developing a plugin that doesn't use a custom post type, but separate database tables. It's a plugin that displays a list of courses with links that lead to the different course detail pages, ...
4
votes
1answer
94 views

Update exisiting site to 3.5 release candidate

I have an existing site that I want to update to 3.5 now, because I want to see if my plugins and themes work in it. I don't want to wait for the full release (when I'll be able to automatically ...
4
votes
1answer
193 views

Which method is best to enqueue scripts

I'm currently authoring the development of a plugin for wordpress, and I'm having trouble figuring out which would be the best way to add scripts to the plugin. I'm in the process of adding more ...
4
votes
2answers
876 views

Make Categories and Tags required in admin

Hello i started from Bainternet solution in this post: don't publish custom post type post if a meta data field isn't valid I made a plugin to make categories and tags required. The ...
4
votes
1answer
50 views

Get specific color from admin color scheme

I know how to print the current color scheme by using: echo get_user_option( 'admin_color', get_current_user_id() ); or echo get_user_meta(get_current_user_id(), 'admin_color', true); but I need ...
4
votes
1answer
50 views

Check the Version of an Enqueue'd External Library

I want to use an external font library in my plugin, but I want to do a version check first to determine if I should bother enqueue'ing my version or not. I know I can see if a library is already ...
4
votes
1answer
91 views

Cron firing my function everytime wp-admin is visited

This is a MU-plugin I'm developing, and I want it to run hourly. Unfortunately, it's running every time I visit any site's wp-admin page. I've used the Debug Bar plugin with the Cron plugin, and it ...
4
votes
1answer
559 views

How to extend LINK TO functionality in ATTACHMENT DISPLAY SETTINGS

In WP 3.4.x and earlier, it was possible to add a button to the media manager by messing around in an attachment_fields_to_edit filter. For example, a plugin could, when it figured out that an item ...
4
votes
2answers
2k views

custom XMLRPC method plus authentication of user & WooCommerce order

I'm working with a custom XML-RPC method to capture some information for a plugin I am building. When activated the user has to authenticate themselves by entering there user/password given to them ...
4
votes
3answers
1k views

Has anyone managed to integrate the wp_editor inside a widget?

Adding this in the widget form method: wp_editor($text, $this->get_field_id('text')); seems to work. But after you press the "Save" button the widget goes funky... Adding ...
4
votes
2answers
533 views

use Wordpress theme / plugin editor in my plugin

Is there a way to use the wordpress theme / plugin editor inside my plugin to give the user the ability to edit the css file of my plugin ? Im building a plugin that gives the user an option to add ...
4
votes
1answer
612 views

Custom attachments uploader code. Almost there!

The code below resides in my theme's functions.php and creates a custom upload icon on top of the WordPress content editor, alongside the default upload icon. Images uploaded via this icon get a ...
4
votes
1answer
468 views

Nav Menu meta failing to import

I'm the author of the Nav Menu Roles plugin that lets you display/hide menu items based on the user's role. It has come to my attention that the menu item meta does not import when using the regular ...
3
votes
2answers
2k views

PHP error with shortcode handler from a class

Currently i am using the following generic flow for adding the shortcode for a plugin. class MyPlugin { private $myvar; function baztag_func() { print $this->myvar; ...
3
votes
2answers
4k views

Making a plugin file accessible via url rewrite?

In my WordPress plugin I have a php file that generates some stats about the blog and outputs it as a simple text file. To access WordPress functions I've included this at the top of the file: ...
3
votes
2answers
529 views

Best practices for using the transients API

I've recently come across the Transients API in Wordpress in hopes of improving the performance of the plugin that I'm trying to write. Basically the plugin is storing product details from the amazon ...
3
votes
3answers
2k views

Creating two database tables via plugin

I'm working on a voting plugin for my site and I want to create 2 tables: one that stores votes and another that stores voter ips. In Codex it suggests to use an if statement to see if the table has ...
3
votes
1answer
944 views

Where the Nickname is being used in WordPress

I see most of the place is using the "Display name", so why I need to set a Nickname? Where it is being used?
3
votes
4answers
832 views

Using a Theme inside a Plugin directory

I am building a mobile friendly plugin and put the theme directory inside the plugin directory. If it's a mobile browser, how can I redirect to the theme in the plugin directory? ...
3
votes
1answer
322 views

Nonces can be reused multiple times? Bug / Security issue?

I've read that nonces are meant to be for one time use only, and after an ajax request, you should issue a new nonce so with the next ajax request, a new nonce would be sent to the server. However, I ...
3
votes
3answers
9k views

Wordpress Vote Plugin - Vote Once and Track User

I've been looking through voting plugins and cannot seem to find one that works for me. I'm hoping you can help me out before I have to build my own as I'm tight on time. I have a page that will be ...
3
votes
2answers
4k views

Get post ID from the Create post/page admin interface?

I am adding a meta box in the create post/page interface and I want to get the ID of the post being edited/created so I can dynamically display the value of the input field. From the wordpress codex ...
3
votes
2answers
2k views

Is There A Hook To Process The Content Of The Text Widget?

Is there any filter which can be used in a plugin to process the content of the text widget before it is rendered?