3 namespace Drupal\entity_test;
5 use Drupal\Core\Field\BaseFieldDefinition;
8 * A custom field storage definition class.
10 * For convenience we extend from BaseFieldDefinition although this should not
11 * implement FieldDefinitionInterface.
13 * @todo Provide and make use of a proper FieldStorageDefinition class instead:
14 * https://www.drupal.org/node/2280639.
16 class FieldStorageDefinition extends BaseFieldDefinition {
21 public function isBaseField() {