django模板，查找字符串替换为其他字符串

Hay, I'm writing some templates but I want to convert " " into "_" within a string.

嘿，我在写一些模板但是我想把" " "转换成"_"在一个字符串中。

I want to convert the output of

我想要转换输出

{{ user.name }}

from something like "My Name" to "My_Name". How do I do this?

从“我的名字”到“My_Name”。我该怎么做呢?

4 个解决方案

#1

There is no built-in tag or filter to do this replacement. Write a filter that splits by a given character, and then combine that with the join filter, or write a filter that does the replacement directly.

没有内置的标签或过滤器来做这个替换。编写一个由给定字符分割的过滤器，然后将其与联接过滤器合并，或者编写一个直接进行替换的过滤器。

#2

A shorter version of Matthijs' answer:

Matthijs的简短回答:

{{ user.name.split|join:"_" }}

Of course it only works when splitting on whitespace.

当然，它只适用于分割空格。

#3

I like to perform this type of conversions in my view / controller code i.e.:

我喜欢在我的视图/控制器代码中执行这种类型的转换，例如:

user.underscored_name = user.name.replace(' ','_')
context['user'] = user

dont be afraid to just add a new (temporary) property and use this in your template:

不要害怕添加一个新的(临时的)属性并在模板中使用:

{{ user.underscored_name }}

If you use this at more places add the method underscored_name to the User model:

如果您在更多的地方使用此方法，请将underscored_name方法添加到用户模型中:

class User()
  def underscored_name(self):
    return self.name.replace(' ','_')

#4

If you dont like to write your own custom tag you could do it like this ...

如果你不喜欢写你自己的自定义标签，你可以这样做……

{% for word in user.name.split %}{{word}}{% if not forloop.last %}_{% endif %}{% endfor %}

However its quite verbose ...

然而，它相当冗长……

#1