Custom Post Types
Custom post types are a new feature introduced in WordPress 3.0. It is a very powerful system because it allows you to easily introduce new post-like objects, without having to write much of its associated functionality. Menus, metaboxes, permalinks, and much more can be added just by registering your new object class as a custom post type. Below are some tutorials on how to manipulate WordPress custom post types –
Add Custom Post Type Columns
How to expand custom post type administration menus with new columns.
Add a Metabox to Your Custom Post Type Screen
How to add our own metabox to the edit custom post type screen.
Modify Custom Post Type Icons
How to customize our custom post type screens with our own icons.
Custom Post Type Permalinks
How to set permalink attributes while creating custom post type objects.
Custom Post Type Permalinks - Part 2
How to fully customize and create our own permalinks for custom post type objects.
How to Flush Permalink Rules with flush_rules()
How to properly flush permalink rules on a WordPress multi-site setup.
WordPress Custom Taxonomy
The WordPress custom taxonomy system allows us to add custom fields to our WordPress posts, pages, and categories.
WordPress Custom Taxonomy Input Panels
We describe registering custom taxonomies, and how to add our own custom taxonomy input interface. Substitute the default tag interface with a drop-down menu, radio button list, or something else.
Add Custom Taxonomy Tags to Your WordPress Permalinks
How to include taxonomy tags into our custom post type permalinks.
Modify Custom Taxonomy Columns
How to expand our taxonomy screens by adding new columns.
Add Term or Taxonomy Meta Data
How to add metadata to custom taxonomy objects such as tags and categories. In particular we examine add_metadata, update_metadata, delete_metadata, and get_metadata.
Expand Your "Edit Category" Admin Panel
How to add new input fields to our Edit Category administration menu. We can then link it to new category meta-data or to the WordPress custom taxonomy system.
Other Admin Panel Articles
Write a Plugin for WordPress Multi-Site
What we need to do differently while writing a plugin for WordPress mulsite.
Expand the WordPress Quick Edit Menu
How to add new fields into the quick edit menu for posts, pages, and custom post types.
Expand the WordPress Comments Quick Edit Menu
How to expand our WordPress comments quick edit menu with new custom fields, and properly save user-input values.
Add a Metabox to the Edit Comments Screen
How to expand the Edit Comments screen with a new custom metabox.
WordPress Widget System - How it Works
A very detailed analysis of how sidebars and widgets work in WordPress.
How to Add Admin Columns in WordPress
Many of the key administration areas within WordPress displays a table containing a list of objects and some of their attributes. We describe how to modify these administration tables.
Add a Standard WordPress Meta-Box
Tutorial on how we can expand your theme or plugin with standard WordPress metaboxes. For example, we may want to add a tag metabox to our page edit screen to enable tagging on pages.
Expand the WordPress Media Library Admin Panel
How to add options to the WordPress Media Library panel. This tutorial was written based on WordPress 2.8. The same concepts will apply to WordPress 2.9, but some alterations are may be needed for handling [...]