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
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Creating a custom theme based on Classy


Drupal 8 ships with a new base theme that is intended to demonstrate best practice and CSS class management. The Classy theme is provided by the Drupal core and is the base theme for the default frontend theme, Bartik, and the administrative theme, Seven.

Unlike the previous versions of Drupal, Drupal 8 provides two base themes--Classy and Stable--to jump start Drupal theming. Stable provides a leaner approach to frontend theming with fewer classes and wrapping elements and is guaranteed to not introduce changes that may disrupt your child theme. In this recipe, we will create a new theme called mytheme that uses Classy as its base.

How to do it...

  1. In the root directory of your Drupal site, create a folder called mytheme in the themes folder.
  2. Inside the mytheme folder, create a mytheme.info.yml file so that Drupal can discover the theme. We will then edit this file:
  1. First, we will need to define the themes name using the name key:
name: My Theme 
  1. All the...