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Question

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）comment.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

我使用了mongoid

当我运行服务器时出现问题

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"}

Answer 1

我会用：

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

或者我会尝试使用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对象中填充注释，您可以在视图或控制器中执行此操作：

查看

<% @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

如果您的记录未保存，则可能需要在模型中添加attr_accessible：

class Post
  attr_accessible :comments_attributes

轨道上的ruby中的嵌套属性

1 个答案:

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控制器