“必须为整数”日期时间字段

Question

what i wanted to do with this code is get all the datas thats dated older than yesterday. It throws an error "an integer is required" at the line:

date = datetime.date(year, month, yesterday)

So far to my knowledge, its taking year as an integer but not month field. It takes the month field as the default datetime field.

Heres my view:

current = datetime.datetime.now()
yesterday = datetime.datetime.today() + datetime.timedelta(days = -1) 
year = datetime.date.today().year
month = datetime.date.today() + relativedelta(months = -1)
date = datetime.date(year, month, yesterday)
hist_obj = Events.objects.filter(uploader = request.user,
        start_date__lte = date)
return render_to_response('history.html', {'history_obj':hist_obj})

Answer 1

This code is confusing. yesterday and month are both datetimes, because that's how you defined them in lines 2 and 4. So what are you trying to achieve in the code that throws the error? As the message says, you can't pass a datetime as the day or month parameter to construct another datetime. Especially as, surely, yesterday is already the date that you want? Why can't you simply pass that to the query?

Answer 2

Try this,

day_ago = datetime.date.today() - datetime.timedelta(days=1)
yesterday = datetime.datetime(day_ago.year, day_ago.month, day_ago.day)
hist_obj = Events.objects.filter(uploader = request.user,
        start_date__lt = yesterday)
return render_to_response('history.html', {'history_obj':hist_obj})