Providing a custom storage handler

Storage handlers control the loading, saving, and deleting of an entity. The \Drupal\Core\Entity\ContentEntityType provides the base entity type definition for all content entity types. If it is not specified, then the default storage handler is \Drupal\Core\Entity\Sql\SqlContentEntityStorage. This class can be extended to implement alternative load methods or adjustments on saving.

In this recipe, we will implement a method that supports loading an entity by a specific property instead of having to write a specific loadByProperties method call.

Getting ready

You will need a custom module to place the code into to implement a configuration entity type. Create an src directory for your PSR...