ruflin / Elastica

                $opType = key($item);

                $bulkResponseData = reset($item);

                if ($action instanceof AbstractDocumentAction) {

                    $data = $action->getData();

                    if ($data instanceof Document && $data->isAutoPopulate()

                        || $this->_client->getConfigValue(['document', 'autoPopulate'], false)

                    ) {

                        if (!$data->hasId() && isset($bulkResponseData['_id'])) {

                            $data->setId($bulkResponseData['_id']);

                        }

                        if (isset($bulkResponseData['_version'])) {

                            $data->setVersion($bulkResponseData['_version']);

                        }

                    }

                }

                $bulkResponses[] = new BulkResponse($bulkResponseData, $action, $opType);

            }

        $response = $this->request($path, Request::POST, $requestData, $options);

        if ($response->isOk()

            && $data instanceof Document

            && ($data->isAutoPopulate() || $this->getConfigValue(['document', 'autoPopulate'], false))

        ) {

            $responseData = $response->getData();

            if (isset($responseData['_version'])) {

                $data->setVersion($responseData['_version']);

            }

            if (isset($options['fields'])) {

                $this->_populateDocumentFieldsFromResponse($response, $data, $options['fields']);

            }

        }

        return $response;

    }