Book Image

Wordpress Web Application Development - Third Edition

By : Rakhitha Nimesh Ratnayake
Book Image

Wordpress Web Application Development - Third Edition

By: Rakhitha Nimesh Ratnayake

Overview of this book

WordPress is one of the most rapidly expanding markets on the Web. Learning how to build complex and scalable web applications will give you the ability and knowledge to step into the future of WordPress. WordPress 4.7 introduces some exciting new improvements and several bug fixes, which further improve the entire development process.This book is a practical, scenario-based guide to expanding the power of the WordPress core modules to develop modular and maintainable real-world applications from scratch. This book consistently emphasizes adapting WordPress features into web applications. It will walk you through the advanced usages of existing features such as access controlling; database handling; custom post types; pluggable plugins; content restrictions; routing; translation; caching; and many more, while you build the backend of a forum management application. This book begins by explaining how to plan the development of a web application using WordPress' core features. Once the core features are explained, you will learn how to build an application by extending them through custom plugin development. Finally, you will explore advanced non-functional features and application integration. After reading this book, you will have the ability to develop powerful web applications rapidly within limited time frames.
Table of Contents (14 chapters)

Querying the database

As with most frameworks, WordPress provides a built-in interface for interacting with the database. Most of the database operations will be handled by the wpdb class located inside the wp-includes directory. The wpdb class will be available inside your plugins and themes as a global variable and provides access to all the tables inside the WordPress database, including custom tables.

Using the wpdb class for CRUD operations is straightforward with its built-in methods. A complete guide for using the wpdb class can be found at http://codex.wordpress.org/Class_Reference/wpdb.

Querying the existing tables

WordPress provides well-optimized built-in methods for accessing the existing database tables. Therefore, accessing these tables becomes straightforward...