错误：
No route matches {:action=>"new", :controller=>"comments", :parent_id=>1}
路线.rb：
MyApp::Application.routes.draw do
resources :posts do
resources :comments
end
resources :topics do
resources :posts
end
root :to => "posts#index"
end
楷模：
class Topic < ActiveRecord::Base
has_many :posts, :dependent => :destroy
attr_accessible :name, :post_id
end
class Post < ActiveRecord::Base
belongs_to :topic, :touch => true
has_many :comments, :dependent => :destroy
accepts_nested_attributes_for :topic
attr_accessible :name, :title, :content, :topic, :topic_attributes
end
class Comment < ActiveRecord::Base
has_ancestry
attr_accessible :name, :content
belongs_to :post, :touch => true
end
看法：
<%= link_to "Reply", new_post_comment_path(@post, :parent_id => comment.id) %>
控制器：
class CommentsController < ApplicationController
respond_to :html, :xml
def show
@post = Post.find(params[:id])
@comments = @post.comments.order("updated_at").page(params[:page])
end
def create
@post = Post.find(params[:post_id])
@comment = @post.comments.build(params[:comment])
if @comment.save
flash[:notice] = "Replied to \"#{@post.title}\""
redirect_to(@post)
else
flash[:notice] = "Reply failed to save."
redirect_to(@post)
end
end
def new
@post = Post.find(params[:post_id])
@comment = Comment.new(:parent_id => params[:parent_id])
# @comment = @post.comments.build
end
def destroy
@post = Post.find(params[:post_id])
@comment = @post.comments.find(params[:id])
@comment.destroy
redirect_to post_path(@post)
end
end
通过阅读您可能已经收集到的代码，我正在尝试让ancestrygem 使用嵌套资源。我一直在使用 Ancestry gem 上的 Railscasts 剧集来指导我。感谢您阅读我的问题。