models.py 文件源码

def allDayForDate(self,this_date,timeZone=None):
        '''
        This method determines whether the occurrence lasts the entirety of
        a specified day in the specified time zone.  If no time zone is specified,
        then it uses the default time zone).  Also, give a grace period of a few
        minutes to account for issues with the way events are sometimes entered.
        '''
        if isinstance(this_date,datetime):
            d = this_date.date()
        else:
            d = this_date

        date_start = datetime(d.year,d.month,d.day)
        naive_start = self.startTime if timezone.is_naive(self.startTime) else timezone.make_naive(self.startTime, timezone=timeZone)
        naive_end = self.endTime if timezone.is_naive(self.endTime) else timezone.make_naive(self.endTime, timezone=timeZone)

        return (
            # Ensure that all comparisons are done in local time
            naive_start <= date_start and
            naive_end >= date_start + timedelta(days=1,minutes=-30)
        )