如何发现内容被截断？ [英] How to find that the content is truncated?

问题描述

我正在尝试构建博客应用，问题是当我在模板中使用标签'truncatewords_html'截断长度超过指定单词数的帖子时，我需要链接以完成标题，例如阅读更多信息 ...'截断后。因此，我应该知道该职位是否已被截断。

I'm trying to build a blog app and the problem is when I use tag 'truncatewords_html' in my template to truncate posts longer than specified number of words, I need to link to complete post by some title like 'read more...' after truncation. So I should know that the post was truncated or not.

PS：这是解决问题的一种Python方法吗？

P.S.: Is this a pythonic way to solve the problem?

{% ifequal post.body|length post.body|truncatewords_html:max_words|length %}
  {{ post.body|safe }}
{% else %}
  {{ post.body|truncatewords_html:max_words|safe }}<a href="{{ post.url}}">read more</a>
{% endifequal %}

推荐答案

令人费解，但django有一些怪异的角落。基本上，我想出如果您将x和x + 1字词截断，则字符串长度是否相同，则该字符串并未被截断...

This is pretty convoluted but django has some weird corners. Basically I figure if the string length is the same if you truncate at x and x+1 words then the string has not been truncated...

{% ifnotequal post.body|truncatewords_html:30|length post.body|truncatewords_html:31|length %}
   <a href="#">read more...</a>
{% endifnotequal %}

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