valid_parking.py 文件源码

def filter_time(self, queryset, name, value):
        """
        Filter to valid parkings at given time stamp.

        If there is no valid parkings at given time, but there is a
        parking within a day from given time, then return the parking
        that has the latest ending time.

        :type queryset: parkings.models.ParkingQuerySet
        :type name: str
        :type value: datetime.datetime
        """
        time = value if value else timezone.now()
        valid_parkings = queryset.valid_at(time)
        if valid_parkings:
            return valid_parkings
        limit = time - get_time_old_parkings_visible()
        valid_within_limit = queryset.starts_before(time).ends_after(limit)
        return valid_within_limit.order_by('-time_end')[:1]