public function saveTranslation(Translation $translation)
 {
     // Fetch the related unit
     $propelUnit = UnitQuery::create()->findOneByDomainAndKey($translation->getUnit()->getDomain(), $translation->getUnit()->getKey());
     // Retrived or create the translation
     $propelTranslationToUpdate = null;
     foreach ($propelUnit->getTranslations() as $propelTranslation) {
         if ($propelTranslation->getLocale() == $translation->getLocale()) {
             $propelTranslationToUpdate = $propelTranslation;
             break;
         }
     }
     if ($propelTranslationToUpdate === null) {
         $propelTranslationToUpdate = new PropelTranslation();
         $propelTranslationToUpdate->setUnitId($propelUnit->getId());
     }
     // Update and save
     $propelTranslationToUpdate->updateFromModel($translation);
     $propelTranslationToUpdate->save();
 }