在 Rails 3 中，如何在路由中使用锚点作为 ID?

问题描述

想象一个包含 posts 和 comments 的博客.单个评论的 URL 可能是 posts/741/comments/1220.

Imagine a blog with posts and comments. An individual comment's URL might be posts/741/comments/1220.

但是，我想将 URL 设为 posts/741#1220，甚至是 posts/741#comment-1230.

However, I'd like to make the URL posts/741#1220, or even posts/741#comment-1230.

这样做最不干扰的方式是什么，以便 redirect_to comment_path(my_comment) 指向正确的 URL?

What's the least intrusive way of doing this, so that redirect_to comment_path(my_comment) points to the correct URL?

推荐答案

你可以简单地使用

redirect_to post_path(comment.post, :anchor => "comment-#{comment.id}")

使用锚点手动构建 URL.这样，您仍然可以在路由中将评论的绝对 URL 作为 posts/:post_id/comments/:comment_id .您还可以在例如创建一个辅助方法application_controller.rb

to manually build the URL with the anchor. That way, you can still have the absolute URL to your comments as posts/:post_id/comments/:comment_id in your routes. You can also create a helper method in e.g. application_controller.rb

class ApplicationController
  helper :comment_link

  def comment_link(comment)
    post_path(comment.post, :anchor => "comment-#{comment.id}")
  end
end

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