我在旧问题here中看到了接下来的两种方法,但我不清楚它们之间有什么区别:
{'date_time_field__range': (datetime.datetime.combine(date, datetime.time.min),
datetime.datetime.combine(date, datetime.time.max))}
和
YourModel.objects.filter(datetime_published__year='2008',
datetime_published__month='03',
datetime_published__day='27')
答案 0 :(得分:5)
我自己对此感到困惑,但我认为我已经解决了这个问题:-我发现the documentation about the range lookup option非常有帮助。
当你这样做时:
YourModel.objects.filter(datetime_published__year='2008',
datetime_published__month='03',
datetime_published__day='27')
SQL看起来像:
SELECT ... WHERE EXTRACT('year' FROM pub_date) = '2008'
AND EXTRACT('month' FROM pub_date) = '03'
AND EXTRACT('day' FROM pub_date) = '27';
而这部分django基于通用日期的观点:
{'date_time_field__range': (datetime.datetime.combine(date, datetime.time.min),
datetime.datetime.combine(date, datetime.time.max))}
变得像:
YourModel.objects.filter(datetime_published__range=(
datetime.datetime.combine('2008-03-27',datetime.time.min),
datetime.datetime.combine('2008-03-27',datetime.time.max)
)
生成SQL的行:
SELECT ... WHERE datetime_published BETWEEN '2008-03-27 00:00:00'
AND '2008-03-27 23:59:59';
(最后一个SQL示例中的时间戳格式显然是错误的,但是你明白了)
希望能回答你的问题:)