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<?php |
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namespace Drupal\Driver\Fields\Drupal8; |
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use Drupal\Driver\Fields\FieldHandlerInterface; |
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/** |
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* Base class for field handlers in Drupal 8. |
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*/ |
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abstract class AbstractHandler implements FieldHandlerInterface { |
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/** |
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* Field storage definition. |
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* |
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* @var \Drupal\field\Entity\FieldStorageConfig |
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*/ |
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protected $fieldInfo = NULL; |
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/** |
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* Field configuration definition. |
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* |
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* @var \Drupal\field\Entity\FieldConfig |
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*/ |
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protected $fieldConfig = NULL; |
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/** |
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* Constructs an AbstractHandler object. |
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* |
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* @param object $entity |
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* The simulated entity object containing field information. |
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* @param string $entity_type |
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* The entity type. |
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* @param string $field_name |
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* The field name. |
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* |
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* @throws \Exception |
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* Thrown when the given field name does not exist on the entity. |
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*/ |
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public function __construct(\stdClass $entity, $entity_type, $field_name) { |
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if (empty($entity_type)) { |
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throw new \Exception("You must specify an entity type in order to parse entity fields."); |
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} |
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/** @var \Drupal\Core\Entity\EntityFieldManagerInterface $entity_field_manager */ |
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$entity_field_manager = \Drupal::service('entity_field.manager'); |
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$fields = $entity_field_manager->getFieldStorageDefinitions($entity_type); |
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$this->fieldInfo = $fields[$field_name]; |
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// The bundle may be stored either under "step_bundle" or under the name |
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// of the entity's bundle key. If both are empty, assume this is a single |
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// bundle entity, and therefore make the bundle name the entity type. |
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$bundle_key = \Drupal::entityTypeManager()->getDefinition($entity_type)->getKey('bundle'); |
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$bundle = !empty($entity->$bundle_key) ? $entity->$bundle_key : (isset($entity->step_bundle) ? $entity->step_bundle : $entity_type); |
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$fields = $entity_field_manager->getFieldDefinitions($entity_type, $bundle); |
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$fieldsstring = ''; |
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foreach ($fields as $key => $value) { |
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$fieldsstring = $fieldsstring . ", " . $key; |
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} |
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if (empty($fields[$field_name])) { |
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throw new \Exception(sprintf('The field "%s" does not exist on entity type "%s" bundle "%s".', $field_name, $entity_type, $bundle)); |
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} |
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$this->fieldConfig = $fields[$field_name]; |
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} |
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} |
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jhedstrom /
DrupalDriver
