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| <?php | |
| /** | |
| * @file | |
| * Contains \Drupal\views\FieldAPIHandlerTrait. | |
| */ | |
| namespace Drupal\views; | |
| use Drupal\Core\Field\BaseFieldDefinition; | |
| /** | |
| * A trait containing helper methods for field definitions. | |
| */ | |
| trait FieldAPIHandlerTrait { | |
| /** | |
| * The field definition. | |
| * | |
| * @var \Drupal\Core\Field\FieldDefinitionInterface | |
| */ | |
| protected $fieldDefinition; | |
| /** | |
| * The field storage definition. | |
| * | |
| * @var \Drupal\field\FieldStorageConfigInterface | |
| */ | |
| protected $fieldStorageDefinition; | |
| /** | |
| * Gets the field definition. | |
| * | |
| * A View works on an entity type across bundles, and thus only has access to | |
| * field storage definitions. In order to be able to use widgets and | |
| * formatters, we create a generic field definition out of that storage | |
| * definition. | |
| * | |
| * @see BaseFieldDefinition::createFromFieldStorageDefinition() | |
| * | |
| * @return \Drupal\Core\Field\FieldDefinitionInterface | |
| * The field definition used by this handler. | |
| */ | |
| protected function getFieldDefinition() { | |
| if (!$this->fieldDefinition) { | |
| $field_storage_config = $this->getFieldStorageDefinition(); | |
| $this->fieldDefinition = BaseFieldDefinition::createFromFieldStorageDefinition($field_storage_config); | |
| } | |
| return $this->fieldDefinition; | |
| } | |
| /** | |
| * Gets the field storage configuration. | |
| * | |
| * @return \Drupal\field\FieldStorageConfigInterface | |
| * The field storage definition used by this handler | |
| */ | |
| protected function getFieldStorageDefinition() { | |
| if (!$this->fieldStorageDefinition) { | |
| $field_storage_definitions = $this->getEntityManager()->getFieldStorageDefinitions($this->definition['entity_type']); | |
| $this->fieldStorageDefinition = $field_storage_definitions[$this->definition['field_name']]; | |
| } | |
| return $this->fieldStorageDefinition; | |
| } | |
| /** | |
| * Returns the entity manager. | |
| * | |
| * @return \Drupal\Core\Entity\EntityManagerInterface | |
| * The entity manager service. | |
| */ | |
| protected function getEntityManager() { | |
| if (!isset($this->entityManager)) { | |
| $this->entityManager = \Drupal::entityManager(); | |
| } | |
| return $this->entityManager; | |
| } | |
| } |