Book Image

Drupal 8 Module Development - Second Edition

By : Daniel Sipos
Book Image

Drupal 8 Module Development - Second Edition

By: Daniel Sipos

Overview of this book

Drupal 8 comes with a release cycle that allows for new functionality to be added at a much faster pace. However, this also means code deprecations and changing architecture that you need to stay on top of. This book updates the first edition and includes the new functionality introduced in versions up to, and including 8.7. The book will first introduce you to the Drupal 8 architecture and its subsystems before diving into creating your first module with basic functionality. You will work with the Drupal logging and mailing systems, learn how to output data using the theme layer and work with menus and links programmatically. Then, you will learn how to work with different kinds of data storages, create custom entities, field types and leverage the Database API for lower level database queries. You will further see how to introduce JavaScript into your module, work with the various file systems and ensure the code you write works on multilingual sites. Finally, you will learn how to programmatically work with Views, write automated tests for your functionality and also write secure code in general. By the end, you will have learned how to develop your own custom module that can provide complex business solutions. And who knows, maybe you’ll even contribute it back to the Drupal community. Foreword by Dries Buytaert, founder of Drupal.
Table of Contents (20 chapters)

Summary

In this chapter, we looked at Views from all sorts of module developer-oriented angles. We saw how we can expose our product entity type to Views. That was a breeze. But then, we also saw how our custom player and team data from Chapter 8, The Database API, can be exposed to Views. Even if we did have to write some code for that, much of it was quite boilerplate, as we were able to leverage the existing Views plugin ecosystem for almost everything we wanted. However, since these are all plugins, we also saw how we can create our own field, filter, and argument plugins to handle those exceptional cases in which what exists may not be enough.

Closely tied to this, we also talked a bit about altering the way other modules expose their data to Views. The most notable example here was the ability to easily add more fields (and plugins) to entity-based Views in order to enrich...