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