11.0.x

Upgrade to Drupal 11

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Implement a YAML Plugin

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Implement a Plugin Using Annotations

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PHP Attributes

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Implement a Plugin Using PHP Attributes

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Audience and Approach

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Are you ready to learn how to extend and customize Drupal sites in code? The Drupal Module Developer Guide will introduce you to extending Drupal with modules. You will learn foundational concepts and get hands-on practice with a variety of APIs used in Drupal coding and development. We'll be extending the site we built in the Drupal User Guide. If you're new to Drupal site building, we recommend that you walk through the Drupal User Guide first.

Goal

Decide if this guide is for you.

Guiding Scenario

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We'll be working with the Anytown Farmers Market site, which we built in the Drupal User Guide. Our goal is to extend and enhance this site using custom modules, to fulfill project-specific requirements. We use a narrative approach, which we hope will help you better understand the real-world applications of module development in Drupal.

Goal

Explain the guiding scenario which ties together all the code examples in this guide, and provides a project-based learning approach to Drupal module development.

Concept: What Are Modules?

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Modules enable developers to customize Drupal without modifying the core software. To ensure a stable and upgradeable core system, Drupal defines integration points and patterns that developers can use to customize the system. Modules contain code (PHP, JavaScript, Twig, CSS, YAML, etc.) that can extend, alter, and enhance Drupal's features and functionality.

In this tutorial, you'll learn:

Write a Unit Test

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Write a Kernel Test

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