public function getFieldNamesFromData(Model $Model, $rawData)
 {
     $fieldNames = array();
     if (!empty($rawData)) {
         foreach ($rawData as $key => $value) {
             $data['data'][$key] = array();
             foreach ($rawData[$key] as $key1 => $value1) {
                 foreach ($rawData[$key][$key1] as $key2 => $value2) {
                     if ($key == 0) {
                         $fieldNames[$key1 . '.' . $key2] = $Model->getFieldName($key1, $key2);
                     }
                 }
             }
         }
     }
     return $fieldNames;
 }