在 Rails 中的文本字段中显示链接 | 中的文本字段中显示链接

本文介绍了在 Rails 中的文本字段中显示链接的处理方法，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

在我的 Rails 3.1 应用程序中，我有一个用于评论的文本字段，我希望能够允许人们包含可点击的链接(而不仅仅是显示为纯文本的 url)，以及让文本字段识别何时用户在他们的文本字段中有换行符(没有用户添加 html).我该怎么做?

In my Rails 3.1 app, I have a text field for comments and I want to be able to allow people to include clickable links (instead of just the url showing as plain text), as well as having the text field recognize when a user had line breaks in their text field (without the user adding html). How can I do this?

如果用户将 html 放在 href 中，这适用于显示链接:

This works for showing a link if a user puts the html for a href:<%= simple_format(@user.description) %>

这适用于识别和显示 text_field 中回车符的换行符:<%= h(@user.description).gsub(/\n/, '<br/>').html_safe %>

And this works for recognizing and displaying the line breaks from carriage returns in the text_field:<%= h(@user.description).gsub(/\n/, '<br/>').html_safe %>

但是，我还没有想出如何同时进行.

However, I haven't figured out how to do both, together.

推荐答案

这个怎么样?

#Doesnt work in this case
#<%= simple_format( h(@user.description).gsub(/\n/, '<br/>') ).html_safe %>

似乎您需要 auto_link 功能来实现这一点.尽管它已从 rails 3.1 中移除，但它仍可作为 gem 使用.所以如果您使用的是 rails 3.1 或更高版本，您需要从单独的 gem 中获取它

Seems like you need auto_link function to achieve this. Though it is removed from rails 3.1 it is available as a gem. So if you are using rails 3.1 or later you need to get this from a separate gem

#in Gemfile
gem "rails_autolink", "~> 1.0.9"
#in application.rb
require 'rails_autolink'

#Run
bundle install

#now in you view use it like
<%= h auto_link(simple_format(text)) %>

auto_link 不仅转换网址，还转换可点击链接中的电子邮件地址.在此处获取文档.

auto_link not only converts urls but also email addresses in clickable link. Get the document here.

参考链接:

http://rubygems.org/gems/rails_autolink
http://apidock.com/rails/ActionView/Helpers/TextHelper/auto_link

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