entity_test_extra.module

<?php

/**
 * @file
 * Test module for the entity API providing several extra fields for testing.
 */
use Drupal\Core\Entity\EntityTypeInterface;

/**
 * Implements hook_entity_base_field_info().
 */
function entity_test_extra_entity_base_field_info(EntityTypeInterface $entity_type) {
  return \Drupal::state()
    ->get($entity_type
    ->id() . '.additional_base_field_definitions', []);
}

/**
 * Implements hook_entity_field_storage_info().
 */
function entity_test_extra_entity_field_storage_info(EntityTypeInterface $entity_type) {
  return \Drupal::state()
    ->get($entity_type
    ->id() . '.additional_field_storage_definitions', []);
}

/**
 * Implements hook_entity_bundle_field_info().
 */
function entity_test_extra_entity_bundle_field_info(EntityTypeInterface $entity_type, $bundle, array $base_field_definitions) {
  return \Drupal::state()
    ->get($entity_type
    ->id() . '.' . $bundle . '.additional_bundle_field_definitions', []);
}