返回包含开始日期和结束日期之间所有日期的字典

Question

我的一个django视图上有一个日历。我正在尝试返回一个字典，其中包含开始日期和结束日期之间的日期列表。

目前，我只能返回开始日期或结束日期的列表。我需要这些以及中间的所有日子成为字典的一部分。

class HolidayCalendar(HTMLCalendar):
    def __init__(self, holiday):
        super(HolidayCalendar, self).__init__()
        self.holiday = self.holiday_days(holiday)
        #some formatting
    def holiday_days(self, holiday):
        #don't actually know how this works.... 
        field = lambda holiday: holiday.start_date.day
        # field = lambda holiday: holiday.end_date.day
        return dict(
        [(day, list(items)) for day, items in groupby(holiday, field)]
    )

老实说，我完全不完全理解这一点...这是调用此视图的视图：

def holiday(request):
    #some code
    date_today = datetime.now()
    year = date_today.year
    month = date_today.month
    my_holidays = Holiday.objects.order_by('start_date').filter(
        Q(start_date__year=year, start_date__month=month) | Q(end_date__year=year, end_date__month=month)
    )
    cal = HolidayCalendar(my_holidays).formatmonth(year, month)
    #form stuff
    context = {
        "holidayform": holidayform,
        "calendar": mark_safe(cal),
    }
    return render(request, "tande/calendar.html", context)

谢谢！

Answer 1

有了开始日期和结束日期，您只需将 1 天的timedelta添加到前者，直到到达后者。像这样：

day_delta = timedelta(1,0,0)
next = start_date
days = []
while (end_date - next) < day_delta:
    next = next + day
    days.append(next)

所以现在days将有一个start_date到end_date之间所有日子的列表

Answer 2

这是我的解决方案，最后我不需要字典，我只是使用了一个列表：

class HolidayCalendar(HTMLCalendar):
    def __init__(self, holiday):
        super(HolidayCalendar, self).__init__()
        self.holiday = self.holiday_days(holiday)

def holiday_days(self, holiday):
        day_delta = timedelta(1,0,0)
        holidays = Holiday.objects.all()
        days = []
        for balloon in holidays:
            next = balloon.start_date
            end = balloon.end_date
            while (end - next) > day_delta:
                next = next + day_delta
                days.append(next)
            start_day = balloon.start_date
            days.append(start_day)
            days.append(end)
        holiday = []
        for purple in days:
            pink = purple.day
            holiday.append(pink)           
        return holiday