Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\field;
Chris@0: 
Chris@0: use Drupal\Core\Config\Config;
Chris@0: use Drupal\Core\Entity\EntityManagerInterface;
Chris@0: use Drupal\Core\Entity\EntityTypeInterface;
Chris@0: use Drupal\Core\Field\FieldConfigStorageBase;
Chris@0: use Drupal\Core\Field\FieldTypePluginManagerInterface;
Chris@0: use Drupal\Core\Language\LanguageManagerInterface;
Chris@0: use Symfony\Component\DependencyInjection\ContainerInterface;
Chris@0: use Drupal\Core\Config\ConfigFactoryInterface;
Chris@0: use Drupal\Component\Uuid\UuidInterface;
Chris@0: use Drupal\Core\State\StateInterface;
Chris@0: 
Chris@0: /**
Chris@0:  * Controller class for fields.
Chris@0:  */
Chris@0: class FieldConfigStorage extends FieldConfigStorageBase {
Chris@0: 
Chris@0:   /**
Chris@0:    * The entity manager.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Entity\EntityManagerInterface
Chris@0:    */
Chris@0:   protected $entityManager;
Chris@0: 
Chris@0:   /**
Chris@0:    * The state keyvalue collection.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\State\StateInterface
Chris@0:    */
Chris@0:   protected $state;
Chris@0: 
Chris@0:   /**
Chris@0:    * The field type plugin manager.
Chris@0:    *
Chris@0:    * @var \Drupal\Core\Field\FieldTypePluginManagerInterface
Chris@0:    */
Chris@0:   protected $fieldTypeManager;
Chris@0: 
Chris@0:   /**
Chris@0:    * Constructs a FieldConfigStorage object.
Chris@0:    *
Chris@0:    * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
Chris@0:    *   The entity type definition.
Chris@0:    * @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
Chris@0:    *   The config factory service.
Chris@0:    * @param \Drupal\Component\Uuid\UuidInterface $uuid_service
Chris@0:    *   The UUID service.
Chris@0:    * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
Chris@0:    *   The language manager.
Chris@0:    * @param \Drupal\Core\Entity\EntityManagerInterface $entity_manager
Chris@0:    *   The entity manager.
Chris@0:    * @param \Drupal\Core\State\StateInterface $state
Chris@0:    *   The state key value store.
Chris@0:    * @param \Drupal\Core\Field\FieldTypePluginManagerInterface $field_type_manager
Chris@0:    *   The field type plugin manager.
Chris@0:    */
Chris@0:   public function __construct(EntityTypeInterface $entity_type, ConfigFactoryInterface $config_factory, UuidInterface $uuid_service, LanguageManagerInterface $language_manager, EntityManagerInterface $entity_manager, StateInterface $state, FieldTypePluginManagerInterface $field_type_manager) {
Chris@0:     parent::__construct($entity_type, $config_factory, $uuid_service, $language_manager);
Chris@0:     $this->entityManager = $entity_manager;
Chris@0:     $this->state = $state;
Chris@0:     $this->fieldTypeManager = $field_type_manager;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public static function createInstance(ContainerInterface $container, EntityTypeInterface $entity_type) {
Chris@0:     return new static(
Chris@0:       $entity_type,
Chris@0:       $container->get('config.factory'),
Chris@0:       $container->get('uuid'),
Chris@0:       $container->get('language_manager'),
Chris@0:       $container->get('entity.manager'),
Chris@0:       $container->get('state'),
Chris@0:       $container->get('plugin.manager.field.field_type')
Chris@0:     );
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function importDelete($name, Config $new_config, Config $old_config) {
Chris@0:     // If the field storage has been deleted in the same import, the field will
Chris@0:     // be deleted by then, and there is nothing left to do. Just return TRUE so
Chris@0:     // that the file does not get written to active store.
Chris@0:     if (!$old_config->get()) {
Chris@0:       return TRUE;
Chris@0:     }
Chris@0:     return parent::importDelete($name, $new_config, $old_config);
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function loadByProperties(array $conditions = []) {
Chris@0:     // Include deleted fields if specified in the $conditions parameters.
Chris@0:     $include_deleted = isset($conditions['include_deleted']) ? $conditions['include_deleted'] : FALSE;
Chris@0:     unset($conditions['include_deleted']);
Chris@0: 
Chris@0:     $fields = [];
Chris@0: 
Chris@0:     // Get fields stored in configuration. If we are explicitly looking for
Chris@0:     // deleted fields only, this can be skipped, because they will be
Chris@0:     // retrieved from state below.
Chris@0:     if (empty($conditions['deleted'])) {
Chris@0:       if (isset($conditions['entity_type']) && isset($conditions['bundle']) && isset($conditions['field_name'])) {
Chris@0:         // Optimize for the most frequent case where we do have a specific ID.
Chris@0:         $id = $conditions['entity_type'] . '.' . $conditions['bundle'] . '.' . $conditions['field_name'];
Chris@0:         $fields = $this->loadMultiple([$id]);
Chris@0:       }
Chris@0:       else {
Chris@0:         // No specific ID, we need to examine all existing fields.
Chris@0:         $fields = $this->loadMultiple();
Chris@0:       }
Chris@0:     }
Chris@0: 
Chris@0:     // Merge deleted fields (stored in state) if needed.
Chris@0:     if ($include_deleted || !empty($conditions['deleted'])) {
Chris@0:       $deleted_fields = $this->state->get('field.field.deleted') ?: [];
Chris@0:       $deleted_storages = $this->state->get('field.storage.deleted') ?: [];
Chris@0:       foreach ($deleted_fields as $id => $config) {
Chris@0:         // If the field storage itself is deleted, inject it directly in the field.
Chris@0:         if (isset($deleted_storages[$config['field_storage_uuid']])) {
Chris@0:           $config['field_storage'] = $this->entityManager->getStorage('field_storage_config')->create($deleted_storages[$config['field_storage_uuid']]);
Chris@0:         }
Chris@0:         $fields[$id] = $this->create($config);
Chris@0:       }
Chris@0:     }
Chris@0: 
Chris@0:     // Collect matching fields.
Chris@0:     $matching_fields = [];
Chris@0:     foreach ($fields as $field) {
Chris@0:       // Some conditions are checked against the field storage.
Chris@0:       $field_storage = $field->getFieldStorageDefinition();
Chris@0: 
Chris@0:       // Only keep the field if it matches all conditions.
Chris@0:       foreach ($conditions as $key => $value) {
Chris@0:         // Extract the actual value against which the condition is checked.
Chris@0:         switch ($key) {
Chris@0:           case 'field_name':
Chris@0:             $checked_value = $field_storage->getName();
Chris@0:             break;
Chris@0: 
Chris@0:           case 'field_id':
Chris@0:           case 'field_storage_uuid':
Chris@0:             $checked_value = $field_storage->uuid();
Chris@0:             break;
Chris@0: 
Chris@0:           case 'uuid';
Chris@0:             $checked_value = $field->uuid();
Chris@0:             break;
Chris@0: 
Chris@0:           case 'deleted';
Chris@0:             $checked_value = $field->isDeleted();
Chris@0:             break;
Chris@0: 
Chris@0:           default:
Chris@0:             $checked_value = $field->get($key);
Chris@0:             break;
Chris@0:         }
Chris@0: 
Chris@0:         // Skip to the next field as soon as one condition does not match.
Chris@0:         if ($checked_value != $value) {
Chris@0:           continue 2;
Chris@0:         }
Chris@0:       }
Chris@0: 
Chris@0:       // When returning deleted fields, key the results by UUID since they
Chris@0:       // can include several fields with the same ID.
Chris@0:       $key = $include_deleted ? $field->uuid() : $field->id();
Chris@0:       $matching_fields[$key] = $field;
Chris@0:     }
Chris@0: 
Chris@0:     return $matching_fields;
Chris@0:   }
Chris@0: 
Chris@0: }