Drag and Drop Order for Plugin Options

The drag and drop method of ordering items in an option table is very popular, and also extremely useful. Rather than forcing users to manually enter “order” numbers to sort items the way they want, they can simply click and drag the items into the desired order. I use drag-and-drop ordering quite a bit in…

Making a Simple Rating Field Type in Easy Content Types

Several users have requested that I build a “rating” field type for Easy Content Types that will allow administrators / editors to apply a rating to a post or custom post type entry. This sort of field type would be exceptionally useful for users running review websites, such as book, movie, or game reviews. I…

User Submitted Image Gallery – Part 5

In part five of this User Submitted Image Gallery tutorial series we build the advanced query system that allows users to filter images by categories and tags. This will be one of the most advanced sections of this series. You must be logged in and have an active premium membership to view the rest of…

User Submitted Image Gallery – Part 4

In part three of this User Submitted Image Gallery plugin tutorial series, we created the function that processes image uploads. Now it is time to build our gallery’s short code, which will be used to display the complete gallery of user submitted images. This short code is rather complex and we won’t fully finish it…

Introduction to the Transients API in WordPress

The Transients API in WordPress is a simple method for storing cached data in the database. It allows us to take resource-intensive queries and store them in temporary caches to improve performance. Transients are temporary, meaning that after a specified amount of time, the cached data will be deleted and re-cached, or updated. This quick…

Registering Custom Meta Field Types for Easy Content Types

Easy Content Types is a very powerful plugin that makes it really easy to setup custom post types, taxonomies, and meta boxes. One of great but lesser known features of the plugin is that it has an API built in to allow users to register their own custom meta field types that can be used…

User Submitted Image Gallery – Part 3

In part three of the User Submitted Image Galleries series, we’re going to look at automatically creating our “guest” user account, and process the image uploads from the submission form. This is where our plugin really begins to take shape. After this section, we will get into actually displaying our images on the “gallery” page.…

Using Filters to Alter HTML Output

Filter hooks in WordPress provide a very powerful way to “alter” the output of functions. Using filters we can easily add extra HTML to some functions, and strip HTML from other functions. Some filters, such as the “body_class” filter, allow us to modify the class names of an HTML element, and some filters have nothing…

Create a Simple Mail Chimp Sign Up Form

In this premium-members only tutorial, we’re going to take a brief look into working with the Mail Chimp API to create a newsletter sign up form for your WordPress site. The final result will be a complete plugin that you can install on any WordPress site to begin accepting email subscriptions to your Mail Chimp…

mailchimp-sample-tutorial

Adding Custom Meta Fields to Taxonomies

It is pretty common knowledge that custom meta fields can be added to posts, pages and custom post types, but did you know that you can add custom meta fields to post tags, categories, and custom taxonomies as well? It’s actually pretty simple, though relatively undocumented. So in this quick tutorial I’m going to walk…

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