我应该如何在我的模型中使用DurationField ?

In my model I want to be able to input duration, like 2 years, 5 months, etc.

在我的模型中，我希望能够输入持续时间，比如2年，5个月等等。

In version 1.8 DurationField was introduced so I tried using that:

在1.8版本的DurationField中，我尝试使用这个:

In my model I have user_validPeriod = models.DurationField()

在我的模型中，我有user_validPeriod = models.DurationField()

Trying to add a new User from my admin panel, If I try typing something like 2d or 2 days in the appearing text-field though I get Enter a valid duration.

尝试从我的管理面板中添加一个新用户，如果我尝试在出现的文本框中输入2d或2天之类的东西，尽管我得到一个有效的持续时间。

Can someone provide me with an example of how this field is supposed to be used?

有人能给我举一个这个领域应该如何使用的例子吗?

1 个解决方案

#1

To use a DurationField in django 1.8 you have to use a python datetime.timedelta instance like this:

要在django 1.8中使用DurationField，您必须使用python datetime。timedelta实例如下:

Considering this model :

考虑到这个模型:

from django.db import models

class MyModel(models.Model):
    duration = models.DurationField()

You can set a duration this way :

您可以这样设置持续时间:

import datetime

my_model = MyModel()
my_model.duration = datetime.timedelta(days=20, hours=10)

And query it this way :

这样查询:

# Equal
durations = MyModel.objects.filter(duration=datetime.timedelta(*args, **kwargs))

# Greater than or equal
durations = MyModel.objects.filter(duration__gte=datetime.timedelta(*args, **kwargs))

# Less than or equal
durations = MyModel.objects.filter(duration__lte=datetime.timedelta(*args, **kwargs))

More info on datetime.timedelta here and on DurationField here.

更多信息在datetime。这里和这里的时间增量。

In your admin panel, you can enter a duration with a string with following format : hh:mm:ss

在您的管理面板中，您可以输入一个带有以下格式字符串的持续时间:hh:mm:ss