code: def published(self, for_user=None):
          
          if appsettings.FLUENT_BLOGS_FILTER_SITE_ID:
              qs = self.parent_site(settings.SITE_ID)
          else:
              qs = self
  
          if for_user is not None and for_user.is_staff:
              return qs
  
          return qs \
              .filter(status=self.model.PUBLISHED) \
              .filter(
                  Q(publication_date__isnull=True) |
                  Q(publication_date__lte=now())
              ).filter(
                  Q(publication_end_date__isnull=True) |
                  Q(publication_end_date__gte=now())
              )
docs: Return only published entries for the current site.