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

Defining permissions


In Drupal, there are roles and permissions used to define robust access control lists for users. Modules use permissions to check whether the current user has access to perform an action, view specific items, or do other operations. Modules then define the permissions that are used so that Drupal is aware of them. Developers can then construct roles, which are made up of enabled permissions.

In this recipe, we will define a new permission to view custom pages defined in a module. The permission will be added to a custom route and will restrict access to the route path to users who have a role containing the permission.

Getting ready

Create a new module like the one in the first recipe. We will refer to the module as mymodule throughout the recipe. Use your module's name in the following recipe as appropriate.

This recipe also modifies a route defined in the module. We will refer to this route as mymodule.mypage. Modify the appropriate path in your module'srouting.yml file...