Book Image

Drupal 8 Theming with Twig

By : Chaz Chumley
Book Image

Drupal 8 Theming with Twig

By: Chaz Chumley

Overview of this book

Drupal 8 is an open source content management system and powerful framework that helps deliver great websites to individuals and organizations, including non-profits, commercial, and government around the globe. This new release has been built on top of object-oriented PHP and includes more than a handful of improvements such as a better user experience, cleaner HTML5 markup, a new templating engine called Twig, multilingual capabilities, new configuration management, and effortless content authoring. Drupal 8 will quickly become the new standard for deploying content to both the web and mobile applications. However, with so many new changes, it can quickly become overwhelming knowing where to start and how to quickly. Starting from the bottom up, we will install, set up, and configure Drupal 8. We’ll navigate the Admin interface so you can learn how to work with core themes and create new custom block layouts. Walk through a real-world project to create a Twig theme from concept to completion while adopting best practices to implement CSS frameworks and JavaScript libraries. We will see just how quick and easy it is to create beautiful, responsive Drupal 8 websites while avoiding the common mistakes that many front-end developers make.
Table of Contents (20 chapters)
Drupal 8 Theming with Twig
Credits
About the Author
Acknowledgments
About the Reviewer
www.PacktPub.com
Preface
Index

Introducing Twig


Twig (http://twig.sensiolabs.org) is the new template engine introduced to Drupal 8 and is a companion to Symfony, the new PHP framework that Drupal 8 is built on. Twig provides us with a fast and secure way to separate content from PHP logic in a manner that makes it easier for non-developers to work with templates. To help us get a better feel in order to work with Twig, let's first dive into the steps involved in enabling Twig debugging.

Enabling Twig debug

When Twig debugging is turned on within Drupal, we are able to trace which template is being used, where a template is located, and a list of suggested file names to override a template. This functionality is very advantageous and actually quite simple to set up by following these steps:

  1. Open the development.services.yml file located in the sites folder.

  2. Add the following lines to the bottom of the file:

    parameters:
      twig.config:
        debug : true
        auto_reload: true
        cache: false
  3. Save the file.

  4. Clear Drupal's cache...