我们可以有没有时区的Django DateTimeField吗？ [英] Can we have Django DateTimeField without timezone?

问题描述

我已经搜索过此内容，但找不到任何注释或教程。

I have searched for this, and could not find any notes or tutorials.

推荐答案

设置 USE_TZ = True （请参见 USE_TZ 获取更多信息），Django将日期和时间信息存储在数据库的UTC中，否则它将存储原始日期时间（不带时区的日期时间）。

When you set USE_TZ = True(see USE_TZ for more info) in your settings, Django stores date and time information in UTC in the database otherwise it will store naive date time (date time without timezone).

django-admin startproject 创建的默认 settings.py 文件包括 USE_TZ = True 为方便起见。

The default settings.py file created by django-admin startproject includes USE_TZ = True for convenience.

因此，必须在设置中设置 USE_TZ = False 以避免附加时区。

So you have to set USE_TZ = False in your settings to avoid attaching timezone.

注意：但是，您不能仅为特定字段分离时区。按照上面的建议，您可以从整个数据库中分离出时区，所以我猜想最好使用CharField来存储不带时区的日期。

NOTE: However you cannot detach timezone only for a particular field. By following my suggestion above, you detach timezone from the entire database, so my guess is that it's better to use a CharField to store date without timezone.

您可以尝试覆盖默认保存处理程序，并在保存之前从DatetimeField中删除时区通过为模型定义保存方法将其存入数据库：

You can try to override the default save handler and remove the timezone from DatetimeField before saving the item into the database, by defining a save method for your model:

def save(self, *args, **kwargs):
    self.datetime_field = self.datetime_field.replace(tzinfo=None)
    super(MyModel, self).save(*args, **kwargs)

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