Question

我用通常的CRUD动作创建了一个简单的博客应用程序。我需要按日期对评论进行分组。有类似的东西：

Grouping Blog Comments <=== Blog post title

 December 19, 2013
  Create controller <==== comment
  Create View       <==== comment
  Create controller <==== comment
  Create View       <==== comment
 December 18, 2013
 draw controller <==== comment
 print View       <==== comment
  Create controller <==== comment
  Create View       <==== comment

请注意，我将控制器标题命名为评论。

headlines_controller.rb

class HeadlinesController < ApplicationController

    def create
    @post = Post.find(params[:post_id])
    @headline = @post.headlines.create(params[:headline].permit(:goto, :body))
    redirect_to post_path(@post)    
  end

我确定在headlines_controller中定义存档是错误的，但我不知道该怎么做

  def archive
    @headlines_by_month = Headline.find(:all, :order => "created_at DESC").group_by { |headline| headline.created_at.strftime("%B") }
  end
end

视图\ headlines_headlines.html.erb

<% @headlines_by_month.each do |monthname, headlines| %>
<%= monthname %>
<ul>
   <% headlines.each do |headline| %>
     <li><%= headline.body %></li>
   <% end %>
</ul>
<% end %>

视图\帖子\ show.html.erb

<p>
  <strong>Title:</strong>
  <%= @post.title %>
</p>
<%= link_to 'Back', posts_path %>

<h2>Headlines</h2>
<%= render @post.headlines %>

Ruby on Rails按日期分组博客评论

0 个答案: