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Chapter 7: Plugins

Course

Module Development

Drupal 8, 9, 10, and 11

3 tutorials

Concept: What Are Plugins? Free

Implement a Block Plugin

Use a Service in a Plugin

Chapter 8: Forms

Course

Module Development

Drupal 8, 9, 10, and 11

7 tutorials

Overview: Drupal's Form API Free

Concept: Form Controllers and the Form Life Cycle

Create a Settings Form for the Anytown Module

Validate User Input for the Settings Form

Save Form Data Submitted by a User

Concept: Altering Existing Forms

Alter the User Registration Form

Chapter 9: Working with Data

Course

Module Development

Drupal 8, 9, 10, and 11

16 tutorials

Concept: Data Types in Drupal Free

Concept: Configuration API Free

Retrieve and Update Weather Forecast Settings

Define a Configuration Schema and Default Values

Concept: Entity API and Data Storage

Concept: Field API and Fieldable Entities

Add Fields to the Vendor Content Type

Create a Form for Editing an Entity

Read an Entity's Field Values

Update an Entity When the Form Is Submitted

Use Parameter Upcasting for Entities in Routes

Add Custom Validation to User Entities

Concept: Entity Queries Free

Reset Vendor Status with Cron

Display a List of Vendors

Concept: Custom Entity Types

Chapter 10: Caching

Course

Module Development

Drupal 8, 9, 10, and 11

3 tutorials

Concept: Caching Free

Cache Data Retrieved from the Weather API

Add Cache Context and Tags to Renderable Arrays

Chapter 11: Testing

Course

Module Development

Drupal 8, 9, 10, and 11

5 tutorials

Concept: Testing Free

Configure Your Environment to Run Tests

Write a Unit Test

Write a Kernel Test

Write a Functional Test

Chapter 12: Additional Considerations

Course

Module Development

Drupal 8, 9, 10, and 11

4 tutorials

Concept: Writing Secure Code Free

Concept: Coding Standards Free

Lint Your Code with PHP_CodeSniffer

Concept: Update Hooks

Chapter 13: Collaborate with the Community

Course

Module Development, Community

Drupal 8, 9, 10, and 11

2 tutorials

Concept: Using and Improving Contributed Modules Free

Concept: Contributing Your Custom Modules

Chapter 14: Final Thoughts

Course

Module Development, Community

Drupal 8, 9, 10, and 11

1 tutorials

Learning More and Getting Support Free

Upgrade Drupal

Course

Site Building, Backend and Infrastructure, Site Administration

Drupal 8, 9, 10, and 11

6 tutorials

What Is Deprecated Code? Free

Upgrade to Drupal 11 Free

Upgrade to Drupal 10 Free

Upgrade to Drupal 9 Free

Update Drupal from Versions Prior to 8.8.x using Composer Free

Install a Contributed Module with No Drupal 9 Release Free

Chapter 4: Services and Dependency Injection

Course

Module Development

Drupal 8, 9, 10, and 11

6 tutorials

Concept: Services and the Container Free

Concept: Dependency Injection Free

Locate and Identify Existing Services

Use a Service in a Controller

Concept: Creating Custom Services

Define a Weather Forecast Service

Install and Update Drupal

Course

Site Building, Backend and Infrastructure, Site Administration

Drupal 8, 9, 10, and 11

2 tutorials

Install Drupal Locally with DDEV Free

Update Drupal's Minor Version Free

Index

Free

Site Building, Site Administration

Drupal 8, 9, 10, and 11

More information

Drupal Module Developer Guide

Guide

Module Development

Drupal 8, 9, 10, and 11

Automated Testing in Drupal

Course

Module Development, Backend and Infrastructure

Drupal 8, 9, 10, and 11

6 tutorials

Introduction to Testing in Drupal Free

Software Testing Overview Free

Frameworks for Testing in Drupal

Install Drupal Development Requirements with Composer

Organize Test Files

Create a PHPUnit Config File for Your Project

Writing Automated Tests in Drupal

Course

Module Development, Backend and Infrastructure

Drupal 8, 9, 10, and 11

4 tutorials

Implement a Functional Test

Implement Drupal Functional Test Dependencies

Implement a Unit Test in Drupal

Convert Tests from Simpletest to PHPUnit

Running Automated Tests in Drupal

Course

Module Development, Backend and Infrastructure

Drupal 8, 9, 10, and 11

5 tutorials

Run Drupal Tests with PHPUnit

Set Up a Functional Test

Run Functional JavaScript Tests Free

Functional JavaScript Testing with Nightwatch.js

Run Drupal Tests with the run-tests.sh Script

Test Custom Code

Guide

Module Development, Backend and Infrastructure

Drupal 8, 9, 10, and 11

Keep Drupal Up-To-Date

Guide

Site Building, Backend and Infrastructure, Site Administration

Drupal 8, 9, 10, and 11

Performance and Scalability

Topic

Site Building, Theming, Module Development

Drupal 8, 9, 10, and 11

More information

Performance and scalability determine how fast your application can serve a page and to how many users at a time.

Template Design with Twig

Topic

Theming, Module Development

Drupal 8, 9, 10, and 11

More information

Twig is a template engine for PHP, which is the language used in Drupal. Twig can be used to design templates in generic PHP applications as well as Drupal themes.