Book Image

Mastering Drupal 8

By : Sean Montague, Chaz Chumley, William Hurley
Book Image

Mastering Drupal 8

By: Sean Montague, Chaz Chumley, William Hurley

Overview of this book

Drupal is an open source content management system trusted by governments and organizations around the globe to run their websites. It brings with it extensive content authoring tools, reliable performance, and a proven track record of security. The community of more than 1,000,000 developers, designers, editors, and others have developed and maintained a wealth of modules, themes, and other add-ons to help you build a dynamic web experience. Drupal 8 is the latest release of the Drupal built on the Symfony2 framework. This is the largest change to the Drupal project in its history. The entire API of Drupal has been rebuilt using Symfony and everything from the administrative UI to themes to custom module development has been affected. This book will cover everything you need to plan and build a complete website using Drupal 8. It will provide a clear and concise walkthrough of the more than 200 new features and improvements introduced in Drupal core. In this book, you will learn advanced site building techniques, create and modify themes using Twig, create custom modules using the new Drupal API, explore the new REST and Multilingual functionality, import, and export Configuration, and learn how to migrate from earlier versions of Drupal.
Table of Contents (25 chapters)
Title Page
Credits
About the Author
Acknowledgments
About the Author
About the Reviewer
Customer Feedback
www.PacktPub.com
Preface

Extending migrations with contributed modules


Drupal 8 core contains the basic migration framework adapted from Drupal 7, but not all of it. The functionality included in Drupal 8 supports upgrading from Drupal 6 and 7 from a database only. There are additional capabilities that are available in contrib:

  • Migrate Plus: The Migrate Plus module adds a large part of the Migrate framework functionality. This includes creating migration processes in code and adding Configuration Entities to persist settings to remote systems. It also adds plugins to load data from JSON and XML files.
  • Migrate Tools: The Migrate Tools module adds Drush commands to manage migrations. These include running migrations, checking their status and rolling them back as necessary. There is also a UI to view migrations, but as of Drupal 8.1.3, it is not completely functional.

Building a migration process

The Migrate Plus module also comes with some examples of how to build and manage migrations. Once you download the Migrate...