Question

所以我在我的评论下有一个带有类似按钮的页面，并且我试图找出如何在不刷新整个页面的情况下执行此操作，目前代码看起来像这样：

- if can? :like, comment
  = " · "
  - if likes.find_by_user_id(current_user.id).nil?
    = link_to "Like", like_comment_path(comment), method: :post
  - else
    = link_to "Unlike", unlike_comment_path(comment), method: :post
- if comment.user == current_user
  = " · "
  = link_to "Delete", comment_path(comment), method: :delete,
    :data => { :confirm => "Are you sure you want to delete this comment?" }
- if likes.count > 0
.comment-likes
  - likers = likes.map { |like| link_to(like.user_name, "#") }
  - if likers.length > 1
    - likers = likers.slice(0, likers.length - 1).join(", ").concat(" and " +                               likers.slice(-1))
  - else
    - likers = likers[0]
  = "Liked by #{likers}".html_safe

更改类似和不同的方法：post to：update似乎有一个很大的不同是这个函数使用ajax和：post not？如果没有，那么我将如何将其变成ajax函数。

继承我的comments_controller.rb东西

def like
 comment_vote = resource.like current_user
 Event.comment_liked!(comment_vote)
 redirect_to discussion_url(resource.discussion)
end

def unlike
 resource.unlike current_user
 redirect_to discussion_url(resource.discussion)
end

Answer 1

= link_to "Like", like_comment_path(comment), method: :post, remote: true

然后在你的likes_controller创建动作，respond_to format.js

def create
  respond_to do |format|
    format.html { .. your liking code .. }
    format.js {.. your liking code .. }
  end
end

然后，这将在您的视图文件夹中调用create.js.erb，您可以从那里动态更新您的html

在轨道上的红宝石中的ajax用于类似/不同的按钮

1 个答案: