Layout Builder
Guide
In Drupal’s core library there are a number of utility functions and classes that, as a module developer, you will find make your task easier or less tedious.
Routing
TopicDrupal's Routing API maps the URL of an incoming request to the code responsible for generating the content that is rendered in response.
Services
TopicServices are objects that encapsulate the code for performing specific tasks in a reusable and decoupled way.
Plugins (Plugin API)
TopicPlugins are one of the ways that module developers can write code that extends Drupal. The Drupal Plugin API allows a module to provide functionality in an extensible, object-oriented way.
Dependency Injection
TopicDependency injection is a design pattern commonly used in object-oriented software architectures in order to support Inversion of Control.
Drupal's Entity system provides several hooks that allow custom code to interact with various parts of the entity life cycle.
In this tutorial we'll:
- Examine the available hooks
- Learn how to make use of them to act on several different types of operations on individual entities
By the end if this tutorial you should have a better understanding of the hooks available to developers who want to respond to entity lifecycle operations and how to use them to customize the way specific entity types work.
On occasion you may need to modify the behavior of entity types defined by another module. Thankfully Drupal includes several alter hooks that can be used to override the behavior of another entity.
In this tutorial we will:
- Walk through the common Entity API hooks
- Look at example implementations of each
- And discuss the use cases for each
By the end of this tutorial you will have a better understanding of how to override the default behavior of an entity type provided by Drupal core (or another contributed module) within your custom code.
The Typed Data API in Drupal helps add additional functionality to PHP's built-in data types that make working with data in Drupal much more predictable. It allows code to make intelligent guesses about the type of data that a field on an entity contains. For example differentiating between a string of text, and a string of text that represents a URL.
In this tutorial we'll:
- Look at the 3 main types of typed data in Drupal: primitives, complex data, and lists.
- See how different data types and definitions are defined and show how to define your own data type.
- Look at the interfaces provided by each data type to see some of the benefits to adding this abstraction layer.
By the end of this tutorial you should have a better understanding of what the Typed Data API is, where you'll most likely encounter it, and how to use it in your code.
Entity CRUD (Create, Read, Update, and Delete) operations are handled via the EntityTypeManager service.
In this tutorial we'll:
- Learn how to use the
EntityTypeManagerservice to perform basic CRUD operations with examples you can copy/paste - Access both property and field values of an entity
- Update entities by setting new field values and then saving the object
By the end of this tutorial, you'll be able to understand Entity CRUD operations and be well on your way to becoming comfortable with accessing and manipulating entity values in code.