由于我对Rails和编程一般都很陌生,请多包涵。提前感谢您的帮助。
我已经成功地完成了Ryan Bates在如何在15分钟内构建一个博客的初始教程。如果您不知道,这个教程会带你创建文章并允许评论这些文章。它甚至通过在文章show.html.erb页面上创建和显示评论来介绍AJAX。所有的工作都非常出色。
这里有一个小问题,当Ryan带领你完成这个教程时,他清空了comments_controller,并只展示了创建评论的代码。我正在尝试重新添加编辑和删除评论的功能。但似乎无法实现,它一直删除实际的文章而不是评论(日志显示我一直在向PostsController发送DELETE请求)。以下是我的代码:
class CommentsController < ApplicationController
def create
@post = Post.find(params[:post_id])
@comment = @post.comments.create!(params[:comment])
respond_to do |format|
format.html { redirect_to @post }
format.js
end
end
def destroy
@comment = Comment.find(params[:id])
@comment.destroy
respond_to do |format|
format.html { redirect_to(posts_url) }
format.xml { head :ok }
end
end
end
/views/posts/show.html.erb
<%= render :partial => @post %>
<p>
<%= link_to 'Edit', edit_post_path (@post) %> |
<%= link_to 'Destroy', @post, :method => :delete, :confirm => "Are you sure?" %> |
<%= link_to 'See All Posts', posts_path %>
</p>
<h2>Comments</h2>
<div id="comments">
<%= render :partial => @post.comments %>
</div>
<% remote_form_for [@post, Comment.new] do |f| %>
<p>
<%= f.label :body, "New Comment" %><br/>
<%= f.text_area :body %>
</p>
<p>
<%= f.submit "Add Comment" %></p>
<% end %>
/views/comments/_comment.html.erb
<% div_for comment do %>
<p>
<strong>Posted <%= time_ago_in_words(comment.created_at) %> ago
</strong><br/>
<%= h(comment.body) %><br/>
<%= link_to 'Destroy', @comments, :method => :delete, :confirm => "Are you sure?" %>
</p>
<% end %>
routes.rb
ActionController::Routing::Routes.draw do |map|
map.resources :posts, :has_many => :comments
map.connect ':controller/:action/:id'
map.connect ':controller/:action/:id.:format'
end