code: def get_queryset(self):
          
          if router.is_sf_database(self.db):
              q = models_sql_query.SalesforceQuery(self.model, where=compiler.SalesforceWhereNode)
              return query.SalesforceQuerySet(self.model, query=q, using=self.db)
          return super(SalesforceManager, self).get_queryset()
docs: Returns a QuerySet which access remote SF objects.