Django strip_tags模板过滤器添加空格 [英] Django strip_tags template filter add space

问题描述

我使用djangos模板过滤器 striptags 。示例：

I use djangos template filter striptags. Example:

>>> from django.utils.html import strip_tags
>>> strip_tags("<p>This is a paragraph.</p><p>This is another paragraph.</p>")
'This is a paragraph.This is another paragraph.'

在段落之间添加空格字符的最佳方法是什么？

What is the best way to add a space character between the paragraphs, so that I get this string instead:

'This is a paragraph. This is another paragraph.'

编辑：

一个想法是写一个自定义模板过滤器，用 [space]< / p>替换所有< / p> 之前使用 striptags 过滤器。但是，这是一个干净，健壮的解决方案吗？

One idea I have is to write a custom template filter that replaces all </p> tags with [space]</p> before the striptags filter is used. But is that a clean and robust solution?

推荐答案

是的，这似乎是一个干净的解决方案。当我尝试为WagTail（建立在Django）应用程序上的一些文章创建一个摘录时，我有一个类似的问题。我在我的模板中使用这种语法。

yes, it seems like a clean solution to me. I had a similar issue when trying to create an excerpt for some articles in a WagTail (built on Django) application. I was using this syntax in my template..

{{ page.body|striptags|truncatewords:50 }}

..并得到您描述的相同问题。这是我提出的一个实现 - 希望对其他Django / WagTail开发人员有用。

.. and getting the same issue you described. Here is an implementation I came up - hopefully useful for other Django / WagTail developers as well.

from django import template
from django.utils.html import strip_spaces_between_tags, strip_tags
from django.utils.text import Truncator

register = template.Library()

@register.filter(name='excerpt')
def excerpt_with_ptag_spacing(value, arg):

    try:
        limit = int(arg)
    except ValueError:
        return 'Invalid literal for int().'

    # remove spaces between tags
    value = strip_spaces_between_tags(value)

    # add space before each P end tag (</p>)
    value = value.replace("</p>"," </p>")

    # strip HTML tags
    value = strip_tags(value)

    # other usage: return Truncator(value).words(length, html=True, truncate=' see more')
    return Truncator(value).words(limit)

，你使用它像这样..

and you use it like this..

{{ page.body|excerpt:50 }}

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