在Django模板Django中获取特定日期 [英] get particular date in django template Django

问题描述

我需要在我的django模板文件中检查每个月的10号，有人可以告诉我如何检查这个
吗？我需要在每个月10号之前显示一些数据，并在10号之后隐藏该数据

Hi i need to check the 10th of each month in my django template file , can anybody tell me how can i check this accentually i need to show some data before the 10th of each month and hide that after 10th

推荐答案

需要理解的几件事：

1. Django的模板语言并不是真正围绕真实程序设计的。


2. 它不支持真正的表达式。


3. …但它确实支持基本条件和循环。


4. 因此，您可以检查一个值是否等于或大于或小于另一个。值，您不能做更多的事情。


5. 除非您使用过滤器或自定义模板标签。


6. 过滤器可以从一件事到另一件事。


7. 模板标签可以执行更复杂的操作，这超出了此问题的范围。


8. 虽然过滤器或自定义模板标签都可以

1. Django's templating language isn't really designed around "real" programming. At it's core, it's just building strings.
2. It doesn't support real "expressions".
3. …but it does support basic conditionals and loops.
4. So while you can check if a value is equal to or greater than or less than another value, you can't do much more than that.
5. Unless you use a filter or a custom template tag.
6. Filters can transform values from one thing to another.
7. Template tags can do way more complicated things, that are beyond the scope of this question.
8. While either a filter or a custom template tag could get where you want to go, they'd be overkill.

所以，在我看来，最简单的方法是到：

So, in my opinion, the easiest way to do this would be to:

1. 计算视图中当前日期。


2. 将该值传递给您的模板。


3. 对数字10进行简单的如果大于检查传入的值。

因此，我们的视图将类似于：

So, our view would look something like:

def sample_view(request, *args, **kwargs):
    from datetime import date
    current_date = date.today()
    current_day = int(current_date.day) # force a cast to an int, just to be explicit
    return render_to_response("template", {'day_of_the_month': current_day })

在我们的模板中：

{% if day_of_the_month > 10 %}
    <!-- Stuff to show after the 10th -->
{% else %}
    <!-- Stuff to show before the 10th -->
{% endif %}

这确实使您可能隐藏的模板暴露了东西出于安全原因在日期。 您永远不应基于if / then检查在模板中隐藏安全的东西。

This does expose stuff to your template you might be hiding based on the date for security reasons. You should never hide secure things in a template based on an if/then check.

如果您需要进行其他检查，则可以传入 current_date ，并对照数字10检验 current_date.day ，而不是在当日明确传递。它会不太明确，但会更加通用和灵活。

If you need to do additional checks, you could just pass in current_date, and check current_date.day against the number 10 instead of specifically passing in that day. It'd be less explicit, but more generic and flexible.

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