protected function precalculateExportRecord(AbstractRecord $record, DataDimensions $dataDimensions)
 {
     $key = 'exportrecord-' . $record->getDataType() . '-' . $record->getDataTypeName() . '-' . $dataDimensions->getViewName();
     if (array_key_exists($key, $this->precalculations)) {
         $precalculate = $this->precalculations[$key];
     } else {
         $definition = $record->getDataTypeDefinition();
         $allowedProperties = $definition->getProperties($dataDimensions->getViewName());
         $allowedProperties = array_combine($allowedProperties, $allowedProperties);
         $precalculate = [];
         $precalculate['allowedProperties'] = $allowedProperties;
         $this->precalculations[$key] = $precalculate;
     }
     return $precalculate;
 }