使用Django模板过滤器限制字符数 [英] Limit number of characters with Django Template filter

查看:395
本文介绍了使用Django模板过滤器限制字符数的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我正在尝试在商品列表中输出描述的前255个字符,并正在寻找一种方法来获取它。

I am trying to output the first 255 characters of a description on a list of items and am looking for a method to get that.

示例:我有一个包含300个左右字符的变量。

Example: I have a variable that contains 300 or so characters.

我这样称呼该变量, {{my_variable | characterlimit:255}}

,它将仅返回该变量的前255个字符。

and it would return only the first 255 characters of that variable.

如果此标记没有,如果不存在,我将简单地创建它(并建议将它放入django),但是我想确保在花时间之前没有创建它。谢谢!

If this tag doesn't exist, I will simply create it (and suggest that it goes into django), but I wanted to make sure it didn't before I took the time to do that. Thanks!

推荐答案

如果 my_variable是字符串,则可以利用切片过滤器,该过滤器将字符串视为字符列表。如果是一组单词,则大致等同于 truncatewords -但这听起来不太像您的需要。

If the "my_variable" is a string, you can take advantage of the slice filter, which treats the string as a list of characters. If it's a set of words, the rough equivilant is truncatewords - but that doesn't quite sound like your need.

truncatewords 还添加了省略号 ... 截断结果的结尾。

truncatewordsalso adds an ellipsis ... at the end of the truncated result.

用法类似于

{{ my_variable|slice:":255" }}

这篇关于使用Django模板过滤器限制字符数的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

查看全文
登录 关闭
扫码关注1秒登录
发送“验证码”获取 | 15天全站免登陆