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

Configuration overrides


Managing configuration within Drupal does not always involve changing settings within the administrative panels of a specific section. In fact, Drupal also allows various settings to be configured within the settings.php file. Configuration settings within the settings.php file act as global overrides to those in the database. Some settings, as we will see, can only be set or modified from the settings.php file.

The settings.php file can be located within the /sites/default folder of a Drupal installation.

Keep in mind that the file permissions are set to read only; so, it is important to temporarily modify the permissions to be writeable before making any changes.

Once we have made the settings.php file writeable, we can open it within our favorite editor and locate the Configuration overrides section:

Reading through the Configuration overrides documentation, we can get our first glimpse of which specific values can be overridden, which values are risky or not recommended...