WordPress Plugin Development Cookbook · 2nd Edition by Lefebvre, Yannick -- Read -- Imperial Library of Trantor

Index

Title Page

Second Edition

WordPress Plugin Development Cookbook

Second Edition

Credits About the Author About the Reviewers www.PacktPub.com

Why subscribe?

Customer Feedback Dedication Preface

What this book covers What you need for this book Who this book is for Conventions Reader feedback Customer support

Downloading the example code Errata Piracy Questions

Preparing a Local Development Environment

Introduction Installing a web server on your computer

How to do it... How it works... There's more...

Creating a remote web development environment

See also

Downloading and configuring a local WordPress installation

Getting ready How to do it... How it works...

Creating a local Subversion repository

How to do it... How it works... There's more...

Manual repository creation Other version control systems

See also

Importing initial files to a local Subversion repository

Getting ready How to do it... How it works... See also

Checking out files from a Subversion repository

Getting ready How to do it... How it works... There's more...

Subversion file statuses

See also

Committing changes to a Subversion repository

Getting ready How to do it... How it works... There's more...

Viewing the differences in modified files Updating files to latest repository version Reverting uncommitted file changes Viewing file history

Installing a dedicated code editor/text editor

Getting ready How to do it... How it works...

Plugin Framework Basics

Introduction Creating a plugin file and header

Getting ready How to do it... How it works... See also

Adding output content to page headers using plugin actions

How to do it... How it works... There's more...

Action hooks online listings Searching for hooks in the WordPress source code

See also

Using WordPress path utility functions to load external files and images

How to do it... How it works... There's more... See also

Modifying the site generator meta tag using plugin filters

How to do it... How it works... There's more...

preg_replace function Filter hooks online listings and the apply_filters function

See also

Adding text after each item's content using plugin filters

How to do it... How it works... There's more...

get_the_title and get_permalink functions

See also

Inserting link statistics tracking code in page body using plugin filters

Getting ready How to do it... How it works... See also

Troubleshooting coding errors and printing variable content

How to do it... How it works... There's more...

Built-in WordPress debugging features

See also

Creating a new simple shortcode

How to do it... How it works... See also

Creating a new shortcode with parameters

How to do it... How it works... See also

Creating a new enclosing shortcode

How to do it... How it works... See also

Loading a style sheet to format plugin output

Getting ready How to do it... How it works... See also

Writing plugins using object-oriented PHP

Getting ready How to do it... How it works... See also

User Settings and Administration Pages

Introduction Creating default user settings on plugin initialization

How to do it... How it works... There's more...

Deactivation function

See also

Storing user settings using arrays

Getting ready How to do it... How it works... See also

Removing plugin data on deletion

Getting ready How to do it... How it works... See also

Creating an administration page menu item in the settings menu

Getting ready How to do it... How it works... There's more...

Settings hook priority to determine menu order

See also

Creating a multi-level administration menu

How to do it... How it works... See also

Adding menu items leading to external pages

Getting ready How to do it... How it works... See also

Hiding items which users should not access from the default menu

How to do it... How it works...

Rendering the admin page contents using HTML

Getting ready How to do it... How it works... There's more...

wp_nonce_field

See also

Processing and storing plugin configuration data

Getting ready How to do it... How it works... See also

Displaying a confirmation message when options are saved

Getting ready How to do it... How it works... See also

Adding custom help pages

Getting ready How to do it... How it works... See also

Rendering the admin page contents using the Settings API

How to do it... How it works... There's more...

Rendering a drop-down list settings field Rendering a text area settings field

See also

Accessing user settings from action and filter hooks

Getting ready How to do it... How it works... See also

Formatting admin pages using meta boxes

Getting ready How to do it... How it works... See also

Splitting admin code from the main plugin file to optimize site performance

Getting ready How to do it... How it works... See also

Storing style sheet data in user settings

Getting ready How to do it... How it works... See also

Managing multiple sets of user settings from a single admin page

Getting ready How to do it... How it works... See also

Creating network-level admin pages

Getting ready How to do it... How it works... See also

The Power of Custom Post Types

Introduction Creating a custom post type

Getting ready How to do it... How it works... There's more...

Changing the custom post type permalinks slug

Adding a new section to the custom post type editor

Getting ready How to do it... How it works... See also

Displaying single custom post type items using a custom layout

Getting ready How to do it... How it works... See also

Displaying custom post type data in shortcodes

Getting ready How to do it... How it works... There's more...

do_shortcode function

Adding custom categories for custom post types

Getting ready How to do it... How it works... See also

Adding custom fields to categories

Getting ready How to do it... How it works... See also

Hiding the category editor from the custom post type editor

Getting ready How to do it... How it works... See also

Displaying additional columns in the custom post list page

Getting ready How to do it... How it works... See also

Adding filters for custom categories to the custom post list page

Getting ready How to do it... How it works... See also

Adding Quick Edit fields for custom categories

Getting ready How to do it... How it works...

Updating page title to include custom post data using plugin filters

Getting ready How to do it... How it works...

Customizing Post and Page Editors

Introduction Capturing and displaying information using custom meta boxes

Getting ready How to do it... How it works... There's more...

Adding a new meta box to all post types (including custom ones)

Displaying custom post data using filter functions

Getting ready How to do it... How it works... See also

Hiding the Custom Field section in the post editor

Getting ready How to do it... How it works...

Extending the post editor to allow users to upload files directly

Getting ready How to do it... How it works... See also

Accepting User Content Submissions

Introduction Creating a client-side content submission form

Getting ready How to do it... How it works... See also

Saving user-submitted content in custom post types

Getting ready How to do it... How it works... There's more...

Moderating user-submitted content

See also

Sending email notifications upon new submissions

Getting ready How to do it... How it works... See also

Implementing a CAPTCHA on user forms using an online service

Getting ready How to do it... How it works... See also

Using a local library to implement a CAPTCHA on user forms

Getting ready How to do it... How it works... See also

Customizing User Data

Introduction Adding custom fields to the user editor

Getting ready How to do it... How it works... See also

Processing and storing user custom data

Getting ready How to do it... How it works... See also

Displaying new user data in user list page

Getting ready How to do it... How it works... See also

Using custom user data in containing shortcode

Getting ready How to do it... How it works... See also

Creating Custom MySQL Database Tables

Introduction Creating new database tables

Getting ready How to do it... How it works... There's more...

Using phpMyAdmin to simplify code creation Create tables in network installation

Deleting custom tables on plugin removal

Getting ready How to do it... How it works... See also

Updating custom table structure on plugin upgrade

Getting ready How to do it... How it works... See also

Displaying custom table data on an admin page

Getting ready How to do it... How it works... See also

Inserting and updating records in custom tables

Getting ready How to do it... How it works... See also

Deleting records from custom tables

Getting ready How to do it... How it works... See also

Displaying custom database table data in shortcodes

Getting ready How to do it... How it works... See also

Implementing a search function to retrieve custom table data

Getting ready How to do it... How it works... See also

Importing data from a user file into custom tables

Getting ready How to do it... How it works... See also

Leveraging JavaScript, jQuery, and AJAX Scripts

Introduction Safely loading jQuery onto WordPress web pages

Getting ready How to do it... How it works... There's more...

jQuery noconflict mode

Displaying a pop-up dialog using the built-in ThickBox plugin

Getting ready How to do it... How it works... There's more...

Removing the dialog close button Displaying pop-up dialogs on select pages

Controlling pop-up dialog display using shortcodes

Getting ready How to do it... How it works... See also

Displaying a calendar day selector using the Datepicker plugin

Getting ready How to do it... How it works...

Adding tooltips to admin page form fields using the TipTip plugin

Getting ready How to do it... How it works... See also

Using AJAX to dynamically update partial page contents

Getting ready How to do it... How it works... See also

Adding New Widgets to the WordPress Library

Introduction Creating a new widget in WordPress

Getting ready How to do it... How it works... There's more...

Plugins extending other plugins

See also

Displaying configuration options

Getting ready How to do it... How it works... See also

Validating configuration options

Getting ready How to do it... How it works... See also

Implementing the widget display function

Getting ready How to do it... How it works... See also

Adding a custom dashboard widget

Getting ready How to do it... How it works... See also

Adding a custom widget to the network dashboard

Getting ready How to do it... How it works... See also

Enabling Plugin Internationalization

Introduction Changing the WordPress language configuration

Getting ready How to do it... How it works...

Adapting default user settings for translation

Getting ready How to do it... How it works... See also

Making admin page code ready for translation

Getting ready How to do it... How it works... See also

Modifying shortcode output for translation

Getting ready How to do it... How it works... See also

Translating text strings using Poedit

Getting ready How to do it... How it works... There's more...

Translation template file

See also

Loading a language file in the plugin initialization

Getting ready How to do it... How it works... There's more...

Updating a translation file Advanced translation functions Localizing JavaScript files

See also

Distributing Your Plugin on wordpress.org

Introduction Creating a README file for your plugin

Getting ready How to do it... How it works... There's more...

Releasing specific plugin versions using tags

Applying for your plugin to be hosted on WordPress.org

How to do it... How it works... See also

Uploading your plugin using Subversion

Getting ready How to do it... How it works... There's more...

Checking out plugins to your development installation

See also

Providing plugin banner and thumbnail images

Getting ready How to do it... How it works... See also

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