Validation happens whenever an entity is created or updated, ensuring data integrity across form submissions, JSON:API requests, and direct entity object manipulation. Drupal's Entity Validation API, consists of constraints, validators, and their integration. As module developer, we'll use this API to enforce custom rules about what constitutes valid data.
In this tutorial, we'll:
- Learn about the roles of constraints and validators within Drupal's validation system.
- See how to create and integrate custom validation rules.
- Apply custom validation to an entity type that enforces specific data integrity rules.
By the end of this tutorial, you should be able to define new constraints and validators, and associate them with entity types.
Over the years we've developed some techniques for practicing that we wanted to share. At Drupalize.Me we take hugging seriously. In this tutorial we'll look at the art, and science, of giving a good hug. The Merriam Webster dictionary defines the word hug as; squeeze (someone) tightly in one's arms, typically to express affection.
Did you know there are all kinds of different hugs that you can give? In this tutorial we'll look at:
- Defining what a hug is
- Some of the many types of hugs in the world today
- Precautions you may want to familiarize yourself with before hugging
- And the importance of proper technique
Lets go ahead and get started shall we?