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

Using Drush to manage migrations


With the migrate_tools module enabled, there are Drush tasks that allow you to run, view the status of, and roll back migrations. To view a list of migrations, you would run drush migrate-status, which will show a list of all registered migrations and their current status. Individual migrations or sets of migrations can be run using drush migrate-import, followed by a comma-separated list of migrations; an example is running drush migrate-import d7_user, d7_user_role. Once a set of migrations have been run, they can be rolled back by running drush migrate-rollback, followed by the list of migrations to roll back. Rolling back migrations will remove any entities or configurations they had created. For example, running drush migrate-rollback d7_user would remove any users created by the migration.