在 Ruby on Rails 中将纯文本 URL 转换为 HTML 超链接?
问题描述：
我有一个文本区域，用户可以在其中输入大量可能包含超链接的文本.如何显示文本并使 URL 自动显示为超链接?是否有执行此操作的 gem、插件或现有方法?我希望能够执行以下操作: 在我看来.
I have a text area into which users enter a lot of text that potentially includes hyperlinks. How can I display the text and have the URLs automatically appear as hyperlinks? Is there a gem, plugin, or existing method that does this? I'm looking to be able to do something like:<%=h @my_object.description.with_links %> in my view.
答
Rails 3
使用提供的名为 auto_link 的辅助方法，这是 ActionPack 的一部分.
Use the provided helper method called auto_link, which is part of ActionPack.
<%=h auto_link(@my_object.description) %>
Rails 4
自动链接已从 Rails 中删除，并已纳入 rails_autolink 宝石.
Auto-linking has been removed from Rails and has been made into the rails_autolink gem.
require 'rails_autolink'
auto_link("Go to http://www.rubyonrails.org and say hello to david@loudthinking.com")
# => "Go to <a href=\"http://www.rubyonrails.org\">http://www.rubyonrails.org</a> and
# say hello to <a href=\"mailto:david@loudthinking.com\">david@loudthinking.com</a>"