tablefilter.py 文件源码

def dateStringsToQ(self, field_name, date_from_str, date_to_str):
        """
        Convert the date strings from_date_str and to_date_str into a
        set of args in the form

          {'<field_name>__gte': <date from>, '<field_name>__lte': <date to>}

        where date_from and date_to are Django-timezone-aware dates; then
        convert that into a Django Q object

        Returns the Q object based on those criteria
        """

        # one of the values required for the filter is missing, so set
        # it to the one which was supplied
        if date_from_str == '':
            date_from_str = date_to_str
        elif date_to_str == '':
            date_to_str = date_from_str

        date_from_naive = dateparse.parse_datetime(date_from_str + ' 00:00:00')
        date_to_naive = dateparse.parse_datetime(date_to_str + ' 23:59:59')

        tz = timezone.get_default_timezone()
        date_from = timezone.make_aware(date_from_naive, tz)
        date_to = timezone.make_aware(date_to_naive, tz)

        args = {}
        args[field_name + '__gte'] = date_from
        args[field_name + '__lte'] = date_to

        return Q(**args)