dependencies = array('Article'); * * $this->destination = new MigrateDestinationFieldCollection( * 'field_attached_data', * array('host_entity_type' => 'node') * ); * * $this->addFieldMapping('host_entity_id', 'source_article_id') * ->sourceMigration('Article'); * @endcode * * @see http://drupal.org/node/1900640 */ /** * Destination class implementing migration into field_collection. */ class MigrateDestinationFieldCollection extends MigrateDestinationEntity { /** * The type of entity hosting this collection field (e.g., node). * * @var string */ protected $hostEntityType; static public function getKeySchema() { return array( 'item_id' => array( 'type' => 'int', 'unsigned' => TRUE, 'not null' => TRUE, 'description' => 'ID of field collection item', ), ); } /** * Basic initialization. * * @param string $bundle * Bundle name. * @param array $options * (optional) Options applied to collections. */ public function __construct($bundle, array $options = array()) { parent::__construct('field_collection_item', $bundle, $options); $this->hostEntityType = $options['host_entity_type']; } /** * Returns a list of fields available to be mapped for this collection * (bundle). * * @return array * Keys: machine names of the fields (to be passed to addFieldMapping). * Values: Human-friendly descriptions of the fields. */ public function fields() { $fields = migrate_handler_invoke_all('Entity', 'fields', $this->entityType, $this->bundle); $fields['item_id'] = t('Field collection entity ID'); $fields['host_entity_id'] = t('Field collection host ID'); return $fields; } /** * Import a single field collection item. * * @param $collection * Collection object to build. Pre-filled with any fields mapped in the * migration. * @param $row * Raw source data object - passed through to prepare/complete handlers. * * @return array|false * Array of key fields (item_id only in this case) of the collection that * was saved or FALSE on failure. */ public function import(stdClass $collection, stdClass $row) { if (isset($row->migrate_map_destid1)) { // We're updated an existing entity - start from the previous data. // entity_load() returns an array, so we get the field collection entity // with array_shift(). $entity = array_shift(entity_load('field_collection_item', array($row->migrate_map_destid1), array(), TRUE)); $entity_old = clone $entity; $updating = TRUE; } else { // Skip the collection if it has no host. if (empty($collection->host_entity_id)) { throw new MigrateException('Could not find host entity of the field collection to import.'); } $entity = entity_create('field_collection_item', array('field_name' => $this->bundle)); $updating = FALSE; $host_entity = entity_load_single($this->hostEntityType, $collection->host_entity_id); entity_get_controller($this->hostEntityType)->resetCache(); $entity->setHostEntity($this->hostEntityType, $host_entity); } unset($collection->host_entity_id); foreach ((array) $collection as $field => $value) { $entity->{$field} = $value; } $this->prepare($entity, $row); // Restore fields from original field_collection_item if updating if ($updating) { foreach ($entity as $field => $value) { if ('field_' != substr($field, 0, 6)) { continue; } elseif (property_exists($entity_old, $field) && !property_exists($collection, $field)) { $entity->$field = $entity_old->$field; } } } migrate_instrument_start('field_collection_save'); $status = entity_save('field_collection_item', $entity); migrate_instrument_stop('field_collection_save'); if (in_array($this->hostEntityType, array('node', 'field_collection_item')) || ($status !== FALSE)) { $this->complete($entity, $row); if ($updating) { $this->numUpdated++; } else { $this->numCreated++; } return array($entity->item_id); } else { return FALSE; } } /** * Delete a migrated collection. * * @param $key * Array of fields representing the key. */ public function rollback(array $key) { $item_id = reset($key); $this->prepareRollback($item_id); $field_collection_item = field_collection_item_load($item_id); // If the collection wasn't imported then we can't roll it back, so check if // the loaded object is an instance of the FieldCollectionItemEntity class. if ($field_collection_item instanceof FieldCollectionItemEntity) { $field_collection_item->delete(); } $this->completeRollback($item_id); return TRUE; } } /** * Implements migrate hook_migrate_api(). */ function field_collection_migrate_api() { $api = array( 'api' => 2, ); return $api; }