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我想在 ruby​​ 中创建评论，但我有问题

1）posts_controller.rb

  def comment
      Post.find(params[:id]).comments.create(params[:comment])
      flash[:notice] = "Added your comment"
      redirect_to :action => "show", :id => params[:id]
   end

2)show.html.erb

  <%= form_tag :action => "comment", :id => @post  %>
  <%= text_area  "comment", "message" %><br />
  <%= submit_tag "Comment" %>
  </form>

3)post.rb

class Post  
include Mongoid::Document
include Mongoid::Timestamps::Created
include Mongoid::Timestamps::Updated
field :title, type: String
field :content, type: String
field :user_id, type: Integer
field :tag, type: String
field :owner, type: String 

embeds_many :comments
accepts_nested_attributes_for :comments


end

4) 评论.rb

class Comment
include Mongoid::Document
include Mongoid::Timestamps::Created
include Mongoid::Timestamps::Updated

field :owner, type: String
field :message, type: String
field :voteup, type: Integer
field :votedown, type: Integer



embedded_in :post
end

我用过蒙古人

当我运行服务器有问题

路由错误

No route matches {:action=>"comment", :id=>#<Post _id: 5272289165af50d84d000001,           created_at: 2013-10-31 09:53:21 UTC, updated_at: 2013-10-31 09:53:21 UTC, title: "firstpost", content: "ronaldo && bale", user_id: nil, tag: nil, owner: "boss_dongdoy@kuy.com">, :controller=>"posts"}
4

1 回答 1

0

我会使用：

<%= form_tag :action => "comment", :controller => "posts" do %>
  <%= text_area  "comment", "message" %><br />
  <%= submit_tag "Comment" %>
<% end %>

或者我会尝试form_for：

<%= form_for @post do |f| %>
  <%= f.fields_for :comments do |c| %>
    <%= c.text_area :message %><br />
  <% end %>
  <%= f.submit "Comment" %>
<% end %>

要使用字段，您必须在 @post 对象中填充评论，您可以在视图或控制器中执行此操作：

看法

<% @post.comments.build %>

或内联：

  <%= f.fields_for :comments, @post.comments.build do |c| %>

控制器

在呈现表单的操作中：

@post.comments.build

如果您的记录没有保存，您可能需要在模型中添加 attr_accessible：

class Post
  attr_accessible :comments_attributes
于 2013-11-01T03:55:23.557 回答