Book Image

Drupal 10 Module Development - Fourth Edition

By : Daniel Sipos
Book Image

Drupal 10 Module Development - Fourth Edition

By: Daniel Sipos

Overview of this book

Embark on a journey of Drupal module development with the latest edition of this must-have guide written by Daniel Sipos – a Drupal community member! This fourth edition is meticulously revised to cover the latest Drupal 10 enhancements that will help you build custom Drupal modules with an understanding of code deprecations, changing architecture, data modeling, multilingual ecosystem, and so on. You’ll begin with understanding the core components of Drupal 10 architecture, discovering its subsystems and unlocking the secrets of creating your first Drupal module. Further, you'll delve into Drupal logging and mailing systems, creating theme hooks, and rendering a layout. As you progress, you'll work with different types of data storage, custom entities, field types, and work with Database APIs for lower-level database queries. You'll learn to reap the power of JavaScript and ensure that your code works seamlessly on multilingual sites. You'll also learn to create custom views, automate tests for your functionalities, and write secure code for your Drupal apps. By the end of this book, you'll have gained confidence in developing complex modules that can solve even the most complex business problems and might even become a valuable contributor to the Drupal community!
Table of Contents (21 chapters)
3
Chapter 3: Logging and Mailing

Interacting with the Entity API

In this final section of the chapter, we’re going to cover the most common things you will be doing with content and configuration entities. These are the main topics we will discuss going forward:

  • Querying and loading entities
  • Reading entities
  • Manipulating entities (update/save)
  • Creating entities
  • Rendering entities
  • Validating entity data

So, let’s hit it.

Querying entities

One of the most common things you will do as a programmer is query stuff, such as data in the database. The Entity API offers a layer that reduces the need to query the database directly. In a later chapter, we will see how we can still do that when things become more complex. For now, since most of our structured data belongs in entities, we will use the entity query system for retrieving entities.

If you remember when we spoke about the entity type handlers, one of them was the storage handler that provides the API for CRUD...