在我的模型中,我希望能够输入持续时间,例如 2年, 5个月,等等。
In my model I want to be able to input duration, like 2 years, 5 months, etc.
在版本 1.8 中引入了 DurationField ,因此我尝试使用以下方法:
In version 1.8 DurationField was introduced so I tried using that:
在我的模型中,我有 user_validPeriod = models.DurationField()
尝试添加新的 User ,如果我尝试在出现的文本字段中输入类似 2d 或 2天的内容,尽管我得到输入有效期限。
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.
有人可以向我提供此字段应如何使用的示例吗?
Can someone provide me with an example of how this field is supposed to be used?
推荐答案要在Django 1.8中使用DurationField,您必须使用python datetime.timedelta 实例如下:
To use a DurationField in django 1.8 you have to use a python datetime.timedelta instance like this:
考虑此模型:
from django.db import models class MyModel(models.Model): duration = models.DurationField()您可以这样设置持续时间:
You can set a duration this way :
import datetime my_model = MyModel() my_model.duration = datetime.timedelta(days=20, hours=10)并以这种方式查询它:
# 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))有关datetime.timedelta的更多信息此处并在DurationField上此处。
More info on datetime.timedelta here and on DurationField here.
在管理面板中,您可以输入带有以下格式的字符串的持续时间: [DD] [[hh:] mm:] ss
In your admin panel, you can enter a duration with a string with following format : [DD] [[hh:]mm:]ss
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我应该如何在模型中使用DurationField?
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