Django 日期到 javascript 模板
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Django date to javascript at the template
提问by Hellnar
What would be the easy way of achieving such below? selected_date comes from django context as a python date :
在下面实现这样的简单方法是什么？selected_date 来自 django 上下文作为 python 日期：
<script type="text/javascript">
var selected_year = {{ selected_date|date:"Y" }}
var selected_month = {{ selected_date|date:"m" }} - 1;
var selected_day = {{ selected_date|date:"d"}}
var selected_date = new Date(selected_year, selected_month, selected_day);
alert(selected_date);
</script>
回答by Exelian
I've had a lot of success with the isoformat function in python:
我在 python 中使用 isoformat 函数取得了很多成功：
var selected_date = new Date("{{ selected_date.isoformat }}")
回答by rych
The accepted answer may generate an incorrect date depending on locale.
根据区域设置，接受的答案可能会生成不正确的日期。
In FF console:
在 FF 控制台中：
>>> n = new Date('2011-01-01');
Date {Fri Dec 31 2010 16:00:00 GMT-0800 (PST)}
It's therefore preferable to pass Y,m,d integers to the Date constructor.
因此最好将 Y,m,d 整数传递给 Date 构造函数。
I use a template filter to generate the date constructor:
我使用模板过滤器来生成日期构造函数：
@register.filter(name='jsdate')
def jsdate(d):
"""formats a python date into a js Date() constructor.
"""
try:
return "new Date({0},{1},{2})".format(d.year, d.month - 1, d.day)
except AttributeError:
return 'undefined'
回答by Pamela Fox
I was using this and realized Android was returning 'Invalid Date' when parsing it - I think it's stricter than the desktop Webkit. I am instead using the following, which seems to work:
我正在使用它并意识到Android在解析它时返回“无效日期” - 我认为它比桌面Webkit更严格。我改为使用以下内容，这似乎有效：
new Date('{{ talk.start_datetime|date:"D, d M Y H:i:s"}}'),
More on JS date parsing is here: https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date/parse
更多关于 JS 日期解析的信息在这里：https: //developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Date/parse
回答by Agent Francis
If you are using your date in JS, you will want to use the escapejs filter.
如果您在 JS 中使用日期，则需要使用 escapejs 过滤器。
<script type="text/javascript">
var selected_date = new Date({{ selected_date|escapejs }});
alert(selected_date);
</script>
https://docs.djangoproject.com/en/dev/ref/templates/builtins/#escapejs
https://docs.djangoproject.com/en/dev/ref/templates/builtins/#escapejs
回答by Sven Rojek
Since other approaches are not timezone aware, you can simply use the Django's built-in Template Tag widthratioto convert python's seconds to javascript's milliseconds.
由于其他方法不知道时区，您可以简单地使用Django 的内置模板标签宽度比率将 python 的秒数转换为 javascript 的毫秒数。
new Date({% widthratio selected_date|date:"U" 1 1000 %}
