/** * Checks if the raw data's identifier is defined * * @param int $index * @return array Returns the prepared data */ protected function _setRawDataIdentifierIfNotSetForIndex($index) { $rawData = $this->rawData[$index]; if (!isset($rawData[Constants::DATA_ID_KEY]) || $rawData[Constants::DATA_ID_KEY]) { $this->rawData[$index] = DocumentUtility::assertDocumentIdentifierOfData($rawData); } return $rawData; }