Book Image

Drupal 8 Development Cookbook - Second Edition

By : Matt Glaman
Book Image

Drupal 8 Development Cookbook - Second Edition

By: Matt Glaman

Overview of this book

Began as a message board, Drupal today is open source software maintained and developed by a community of over 1,000,000 users and developers. Drupal is used by numerous local businesses to global corporations and diverse organizations all across the globe. With Drupal 8’s exciting features it brings, this book will be your go-to guide to experimenting with all of these features through helpful recipes. We’ll start by showing you how to customize and configure the Drupal environment as per your requirements, as well as how to install third-party libraries and then use them in the Drupal environment. Then we will move on to creating blocks and custom modules with the help of libraries. We will show you how to use the latest mobile-first feature of Drupal 8, which will help you make your apps responsive across all the major platforms. This book will also show you how to incorporate multilingual facilities in your sites, use web services and third-party plugins with your applications from inside Drupal 8, and test and deploy your apps.
Table of Contents (20 chapters)
Title Page
About the Author
About the Reviewer
Customer Feedback

Creating a content entity type

Content entities provide base field definitions and configurable fields through the Field module. There is also support for revisions and translations with content entities. Display modes, both form and view, are available for content entities to control how the fields are edited and displayed. When an entity does not specify bundles, there is automatically one bundle instance with the same name as the entity.

In this recipe, we will create a custom content entity that does not specify a bundle. We will create a Message entity that can serve as a content entity for generic messages.

Getting ready

You will need a custom module to place code into to implement a configuration entity type. Create an src directory for your classes. Refer to the Creating a module recipe of Chapter 4, Extending Drupal, for information on creating a custom module.

Do not use a module which is currently installed, otherwise Drupal will not install your new entity type.

How to do it...

  1. Let...