Class EmptySearchQuerySet

haystack/query.py:636–658

A stubbed SearchQuerySet that behaves as normal but always returns no results.

class EmptySearchQuerySet(SearchQuerySet):
    """
    A stubbed SearchQuerySet that behaves as normal but always returns no
    results.
    """

    def __len__(self):
        return 0

    def _cache_is_full(self):
        # Pretend the cache is always full with no results.
        return True

    def _clone(self, klass=None):
        clone = super()._clone(klass=klass)
        clone._result_cache = []
        return clone

    def _fill_cache(self, start, end):
        return False

    def facet_counts(self):
        return {}


class ValuesListSearchQuerySet(SearchQuerySet):