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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8
votes
1answer
5k views

How to make a WordPress plugin translation ready?

What is the best way create a plugin that is translation ready? It doesn't have to be translated from the beginning but it has to be easily translatable so fellow developers from different cultures ...
7
votes
3answers
283 views

Getting a peer review for my new plugin?

What is the best way to get an experienced WordPress developer take a look at my plugin and give constructive criticisms? I have written code to solve some of my questions on this site, and I think ...
13
votes
4answers
518 views

Automatically determine minimum WordPress version required for a plugin?

When developing a plugin, is there a way to automatically determine the minimum version of WordPress that's required to run it? I want to make sure that the Requires header is accurate, but manually ...
9
votes
5answers
3k views

How can I add an option to the Page Template list from a Plugin?

I've been looking around for the past couple hours for a way to create a custom page template from within a plugin but haven't had any luck yet. What I am specifically trying to do is add an option ...
5
votes
3answers
18k views

Get page content using slug

I'm trying to get page content when I only know the slug string. Is there a function for this, or an easy way to do this or is this a case of doing it via SQL? Thanks very much
5
votes
3answers
2k views

Changing Plugin Load Order

I'm writing a plugin, bar, which is dependent on another plugin, foo, being activated, and I need the functions from foo to be available when bar loads. Normally plugins are loaded in alphabetical ...
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 ...
1
vote
2answers
4k views

Post from front-end with post types, categories and taxonomies

I am now developing a wordpress site that will be something like a directory. People will be able to submit walkthroughs, advanced reviews, as well as cheat codes for games. We were going to make a ...
12
votes
3answers
1k views

Unit testing for plugin development

I need to apply unit testing for one of my plugins. I recently re designed it into classes, so unit testing should be easier to apply now. What are some effective strategies to unit test my plugin? I ...
9
votes
2answers
20k views

How to get the path to the current theme?

This code is used to get the directory of the current plugin: plugin_dir_url( __FILE__ ). What should I use to get the directory of the current theme?
5
votes
4answers
4k views

Where, When, & How to Properly Flush Rewrite Rules Within the Scope of a Plugin?

I am having a bit of a strange issue with rewrite rules not flushing properly. I have tried using flush_rewrite_rules(); and flush_rewrite_rules(true);. I have also tried globalizing $wp_rewrite ...
5
votes
4answers
4k views

Passing arguments to a admin menu page callback?

Situation: I'm working on a plugin and I'm developing it as a class, everything worked fine until I run into this situation. I wanted to make things a bit cleaner and tried this.. class MyPlugin { ...
4
votes
3answers
2k views

Is there a hook for when you switch themes?

I created a plugin but I just came across a bug that I don't really know how to solve. When you activate my plugin, it creates a file in the active theme directory and when you deactivate it, it ...
3
votes
1answer
697 views

How to enable users to down-vote in this simple voting counter (that uses the post meta)?

This simple tutorial teaches you how to make a voting counter using the post's meta data. I would like to know how to add down-votes to this small script (e.g. -1, -2). In the following way: If the ...
2
votes
3answers
3k views

Problems with autoloading classes via sp_autoload_register / maybe interfering WP-specific autoloader

I'm working on a plugin in which I do the following for autoloading classes: function TFSLAutoload($class) { $classfile = dirname(__FILE__).'/includes/'.strtolower($class).'.php'; include ...
10
votes
2answers
3k views

How to store username and password to API in wordpress option DB?

I'm currently developing a plugin and the chances are that I will more than likely release it on the public plugin repository so others can use it. The plugin will be using an API and to use this API ...
8
votes
1answer
5k views

How are bulk actions handled in custom list table classes?

I'm working on a custom data table to display in the WordPress dashboard. The table populates from a database table I built in a plugin. I've been using the provided WordPress Custom List Table ...
7
votes
2answers
563 views

How do I improve this admin query snippet to avoid generating duplicate results on non-meta searches?

I've been playing around with code snippets which add meta data to admin searches. The best snippet I've found was written by Stefano on this question. However, it appears to have 1, annoying bug ...
7
votes
2answers
2k views

Add screen options to custom admin pages

I want to add screen options to my plugin settings page, like the ones that are available in the Dashboard. I tried using the add_option method of the WP_Screen object and found that it supports ...
7
votes
1answer
2k views

Adding Widget form fields dynamically

I am trying to add form field to a WordPress widget dynamically. So if the user want to add another date to an event they can click a button to get more fields. The question is: How do save newly ...
7
votes
2answers
1k views

Is wp-content/install.php a Drop-in?

I cannot find documentation or discussions on what is and how to use Drop-in plugins. The question was raised in this Q&A, Populate content on install. Is a wp-content/install.php file that ...
7
votes
3answers
1k views

How would you require and automatically download dependent plugins?

Was wondering if there was a class or programming technique that would allow me to check for the installation and activation of a particular plugin and if said plugin were not installed, to have it ...
5
votes
2answers
6k views

Send user activation email when programmatically creating user

I wondered if someone here might be able to help. Basically, I've created a custom registration form that when validated, inserts a user to the user table. function _new_user($data) { // ...
5
votes
4answers
701 views

How to control output of custom post type without modifying theme?

I have a custom post type 'properties' that I'd like to control the HTML output for. For simplicity, let's focus on the archive view. As a basic example, here is what a loop looks like in an ...
5
votes
3answers
860 views

How do I log plugin (cron) actions?

Is there a recommended way to log (failed) cron actions from your plugin? For example, I have a plugin that synchronizes with an external service every hour. I want to log how much was changed, but ...
4
votes
1answer
821 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
2answers
917 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
3answers
16k views

How to include wp-load.php from any location?

I have a plugin which calls a stand-alone php script (myAjax.php) via a jQuery.ajax() script inside the plugin. I need to place the following code into the myAjax.php file: ...
4
votes
4answers
2k 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
3answers
7k 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 ...
4
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 ...
1
vote
4answers
530 views

URLs of plugin resources?

I am trying to add in a script and css file for my plugin into the admin header. Is there a function similar to get_bloginfo('url') that I could use to reference the files correctly without having to ...
7
votes
1answer
1k views

Plugin - create a page without it appearing in the side menu

I am currently using add_submenu_page to add pages for my plugin. However, I wish to create a page that don't appear in the admin menu, is that possible?
7
votes
4answers
8k views

What is difference between get_bloginfo('url') and get_site_url()?

I am developing a plugin. I want to know difference between get_bloginfo('url'); and get_site_url(); I got same output, then what's the difference?
6
votes
3answers
384 views

Releasing new plugin version, how to rename old options keys?

I have everything ready for publishing a new version of my plugin but one last issue stands... The old version had no naming convention for its key option names. The options grew and I renamed all ...
6
votes
3answers
929 views

Replace audio/video enclosure with player?

Current state: I'm parsing XML feeds into the front end and/or the back end (Admin UI), but not into the DB. Inside those feeds i place mp3- and video content, currently only as plain text (no link, ...
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 ...
5
votes
2answers
391 views

How would I create a plugin for my shortcodes?

All tutorials I have found say to add your shortcodes to functions.php in your theme. I would like to break that away from my theme and put that in a plugin so I can share these shortcodes between my ...
5
votes
2answers
286 views

Best practice for including plugins as part of a theme?

I'm working on a theme that includes some functionality I've developed as separate plugins (as I'm hoping to release them independently). I'd like to include these plugins as part of the theme core ...
5
votes
3answers
677 views

Is there a way for a plug-in to get it's own version number?

Is there an API I can call, inside my plug-in, to determine the plug-in's version? I just want to have my plug-in emit a html comment with it's own version number ... for diagnostic purposes.
4
votes
2answers
5k views

What is the difference between the “wp_footer” and “get_footer” actions?

I am working on developing a plugin, and I am trying to add a line of text to the bottom of the page, I see there are two actions that seems reasonable, wp_footer() and get_footer(). wp_footer sounds ...
4
votes
4answers
235 views

Can i do plugin commits directly from a plugin folder inside an installation using the Trunk SVN

I have several virtual hosts setup, three of them pull files via SVN when needed(though only the trunk folder actually needs this), using SVN for other versions make for easy patch creation, or easy ...
3
votes
2answers
1k views

Is get_option function cached?

In my plugin, I use the following code to retrieve an option from the database: $options = get_option('my_plugin_options'); If I use this 10 times in various functions of my plugin, does WordPress ...
3
votes
1answer
626 views

Do I need to call do_action in my plugin?

Do I need to call do_action function every time I add_action something?
2
votes
1answer
256 views

Add Admin Menu Inside Construct or Init

I thought I was making headway in my WordPress Development education until I ran across the Boilerplate for WordPress plugins and it uses a class object. I'm fine with that and understand those ...
2
votes
1answer
4k views

Update Option Stored in Multi-Dimensional Array

I have data in the wp_options table currently stored as a multi-dimensional array (profile_element_order): ...
1
vote
1answer
192 views

One time username change from frontend?

I'm using facebook connect plugin. Usernames generated by that plugin look like firstname_lastname. I mean it looks ugly. I would like to give the privilege to my users to change the username BUT ...
1
vote
3answers
585 views

Two-step login process - Is it possible?

Is it possible to do the following with Wordpress (without hacking too much code - I would like to make this a general plugin using simple hooks)? Log in with the username/password. If ...
1
vote
3answers
2k views

anything like add_meta_box for categories?

I want to add few custom fields to categories. So I am looking for something like add_meta_box but for categories. Is there any WP function like that for categories?
0
votes
1answer
268 views

Front-End Form Submission in Shortcode

The plugin I am working on contains shortcodes with forms on them. Upon form submission (POST), I do some database work, and then planned on redirecting to another page after the db work is complete. ...