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Key benefits

Explore the essential Drupal 9 APIs for module development

Learn how to implement data modeling, caching, architecture, and much more in your Drupal applications

Discover what's new in the latest Drupal core release

Description

With its latest release, Drupal 9, the popular open source CMS platform has been updated with new functionalities for building complex Drupal apps with ease. This third edition of the Drupal Module Development guide covers these new Drupal features, helping you to stay on top of code deprecations and the changing architecture with every release. The book starts by introducing you to the Drupal 9 architecture and its subsystems before showing you how to create your first module with basic functionality. You’ll explore the Drupal logging and mailing systems, learn how to output data using the theme layer, and work with menus and links programmatically. Once you’ve understood the different kinds of data storage, this Drupal guide will demonstrate how to create custom entities and field types and leverage the Database API for lower-level database queries. You’ll also learn how to introduce JavaScript into your module, work with various file systems, and ensure that your code works on multilingual sites. Finally, you’ll work with Views, create automated tests for your functionality, and write secure code. By the end of the book, you’ll have learned how to develop custom modules that can provide solutions to complex business problems, and who knows, maybe you’ll even contribute to the Drupal community!

Who is this book for?

If you are a Drupal developer looking to learn Drupal 9 to write modules for your sites, this book is for you. Drupal site builders and PHP developers with basic object-oriented programming skills will also find this book helpful. Although not necessary, some Symfony experience will help with understanding concepts easily.

What you will learn

Develop custom Drupal 9 modules for your applications

Master different Drupal 9 subsystems and APIs

Model, store, manipulate, and process data for effective data management

Display data and content in a clean and secure way using the theme system

Test your business logic to prevent regression

Stay ahead of the curve and write PHP code by implementing best practices

What do you get with Print?

Instant access to your digital eBook copy whilst your Print order is Shipped

Paperback book shipped to your preferred address

Download this book in EPUB and PDF formats

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Amazon verified reviews

Amazon Customer Jun 25, 2021

This is well written and an easy read. A really good introduction and reference work. I was expecting a heavy read, but found it easy going. I'm a novice wanting to explore the subject and found this work ideal.

Amazon Verified review

Amazon Customer Dec 31, 2020

Very nice set of samples, getting in deepth with Drupal 9

Hilmar Kári Hallbjörnsson Dec 14, 2020

When I was preparing for teaching Open-source development class at Reykjavik University, this book was my first choice of teaching. I agree that there are some minor things here and there that I would tweak, the code examples on Github are always "end-of-chapter" solutions, therefor it's sometimes hard for students to find help/assistance from there (more code than they are expecting), but all in all, a very well written book where I could reference chapter/page and the students would understand very clearly.Both for novices and experts alike, this book suits most.

Jouni Mäkeläinen Jan 04, 2022

Even though book is namely about module development, it's a quite complete guide to different aspects of Drupal architecture in a easily readable fashion. As such it advances deeper understanding of the CMS platform and is a great addition to the scattered online documentation.

Oliver Jul 12, 2021

I have been working with Drupal for about 1.5-2.0 years. Clearly you don't want this book as a beginner. However, it can be good even if you don't anticipate actually building modules. The reason is that it provides some solid coverage of how Drupal works; at that is not easily found in many other resources that you will find on the web. I would aim to be at a level where you are comfortable with Drupal 8.8 forward (e.g. 9 or 10 are fine too) in the sense of building a basic website, adding contributed modules and activating modules, and having an awareness of the CSS, JS, HTML, TWIG, presentation layers roles versus the core application code and database. At that point aim to read this book in a 'skim' rather than study fashion so you see how Drupal is working under the hood from an overview of this book. Some of the stuff will be too deep to 'get' on a first read but you will be a whole lot smarter and more comfortable with basic Drupal from having done so. And if you do aim to build modules or even just tweak existing modules close to what you want to make them 'nail it' for your needs, this book should get you there. At that point, think of it as much as a reference volume as a cover to cover read because you will probably have a pretty good idea from the 'skim through' the basic area you need to work with and then just look up the exact syntax guidance relevant to that need.If you are just starting out and aren't a particularly technically experienced person in programming generally, this is probably NOT the book for you. But if you have the basics reasonably under your belt, this will get you to the level where you are probably going to be employable.

Drupal 9 Module Development: Get up and running with building powerful Drupal modules and applications , Third Edition

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