code: def translation_save_translated_fields(instance, **kwargs):
      
      if not hasattr(instance, '_translation_cache'):
          return
      for l_id, translation in instance._translation_cache.iteritems():
          # set the translation ID just in case the translation was
          # created while instance was not stored in the DB yet
  
          # note: we're using _get_pk_val here even though it is
          # private, since that's the most reliable way to get the value
          # on older Django (pk property did not exist yet)
          translation.master_id = instance._get_pk_val()
          translation.save()
docs: Save all the translations of instance in post_save signal handler.