只获取当前日期和当前时间

I came across an interesting situation.

我遇到了一个有趣的情况。

class Company(models.Model):
    date = models.DateField()
    time = models.TimeField()

When using this class:

当使用这个类:

c = Company(date=datetime.datetime.now(), time=datetime.datetime.now())

Django decides to use DATETIME_INPUT_FORMATS defined within the formats.py file. Which makes sense, because I am passing in a datetime.now() to both fields.

Django决定使用在格式中定义的datetime_input_format。py文件。这是有意义的，因为我将一个datetime.now()传递给两个字段。

I think I could make Django to use DATE_INPUT_FORMATS and TIME_INPUT_FORMATS respectively, if I passed in only the current date and current time in.

我认为我可以让Django分别使用DATE_INPUT_FORMATS和time_input_format，如果我只传入当前日期和当前时间。

Something like this:

是这样的:

c = Company(date=datetime.date.now(), time=datetime.time.now())

But this throws an exception as now doesn't exist like that. Is there a different way to achieve this?

但这引发了一个异常，因为现在不存在这样的异常。有不同的方法来实现这一点吗?

Many Thanks,

非常感谢,

3 个解决方案

#1

112

For the date, you can use datetime.date.today() or datetime.datetime.now().date().

对于日期，可以使用datetime.date.today()或datetime.datetime.now().date()。

For the time, you can use datetime.datetime.now().time().

现在，您可以使用datetime.datetime.now().time()。

However, why have separate fields for these in the first place? Why not use a single DateTimeField?

但是，为什么一开始就有单独的字段呢?为什么不使用一个DateTimeField呢?

You can always define helper functions on the model that return the .date() or .time() later if you only want one or the other.

如果只需要一个或另一个函数，则可以在模型上定义helper函数，该函数返回.date()或.time()。

#2

import datetime
datetime.datetime.now().strftime ("%Y%m%d")
20151015

For the time

的时间

from time import gmtime, strftime
showtime = strftime("%Y-%m-%d %H:%M:%S", gmtime())
print showtime
2015-10-15 07:49:18

#3

import datetime

datetime.date.today()  # Returns 2018-01-15

datetime.datetime.now() # Returns 2018-01-15 09:00

#1

112