我正在尝试处理评论的更新。现在我很确定这应该是一个PUT请求但是我似乎得到了一个像这样的GET命令：
没有路线匹配[GET]“/ books / 10 / snippets / 24”
这是我的片段控制器：
class SnippetsController < ApplicationController
before_filter :authenticate_user!, only: [:create]
before_filter :find_book
def create
@snippet = @book.snippets.create!(params[:snippet])
redirect_to @book
end
def edit
@snippet = @book.snippets.find(params[:id])
end
def update
@snippet = @book.snippets.find(params[:id])
respond_to do |format|
if @snippet.update_attributes(params[:book])
format.html { redirect_to [@book, @snippet], notice: 'Comment was successfully updated.' }
else
format.html { render action: "edit" }
end
end
end
private
def find_book
@book = Book.find(params[:book_id])
end
end
以下是我的表单，首先是_form.html.erb
<%= form_for([@book, @snippet]) do |f| %>
<% if @snippet.errors.any? %>
<div id="error_explanation">
<h2><%= pluralize(@snippet.errors.count, "error") %> prohibited this comment from being saved:</h2>
<ul>
<% @snippet.errors.full_messages.each do |msg| %>
<li><%= msg %></li>
<% end %>
</ul>
</div>
<% end %>
<div class="field">
<%= f.text_field :body %>
</div>
<div class="actions">
<%= f.submit %>
</div>
<% end %>
然后，根据我的理解，我的片段部分仅用于创建或显示与其父级（书籍）相关的片段。
<%= div_for snippet do %>
<p>
<strong>
Posted <%= time_ago_in_words(snippet.created_at) %> ago
</strong>
<br/>
<%= snippet.body %>
<br/>
<%= link_to 'Edit', edit_book_snippet_path(@book, snippet) %> |
<%= link_to 'Back', books_path %>
</p>
<% end %>
以下是我从localhost获得的路线：
> http://localhost:3000/books/10/snippets/24
这是我的佣金路线：
$ rake routes
book_snippets POST /books/:book_id/snippets(.:format) snippets#create
edit_book_snippet GET /books/:book_id/snippets/:id/edit(.:format) snippets#edit
book_snippet PUT /books/:book_id/snippets/:id(.:format) snippets#update
DELETE /books/:book_id/snippets/:id(.:format) snippets#destroy
books GET /books(.:format) books#index
POST /books(.:format) books#create
new_book GET /books/new(.:format) books#new
edit_book GET /books/:id/edit(.:format) books#edit
book GET /books/:id(.:format) books#show
PUT /books/:id(.:format) books#update
DELETE /books/:id(.:format) books#destroy
Routes.db文件：
App1::Application.routes.draw do
resources :books do
resources :snippets, :only => [:create, :edit, :update, :destroy]
end
devise_for :admins
get "profiles/show"
as :user do
get '/register', to: 'devise/registrations#new', as: :register
get '/login', to: 'devise/sessions#new', as: :login
get '/logout', to: 'devise/sessions#destroy', as: :logout
end
devise_for :users, skip: [:sessions]
as :user do
get "/login" => 'devise/sessions#new', as: :new_user_session
post "/login" => 'devise/sessions#create', as: :user_session
delete "/logout" => 'devise/sessions#destroy', as: :destroy_user_session
end
resources :user_friendships do
member do
put :accept
end
end
resources :statuses
get 'feed', to: 'statuses#index', as: :feed
root to: 'statuses#index'
get '/:id', to: 'profiles#show', as: 'profile'
# The priority is based upon order of creation:
# first created -> highest priority.
# Sample of regular route:
# match 'products/:id' => 'catalog#view'
# Keep in mind you can assign values other than :controller and :action
# Sample of named route:
# match 'products/:id/purchase' => 'catalog#purchase', :as => :purchase
# This route can be invoked with purchase_url(:id => product.id)
# Sample resource route (maps HTTP verbs to controller actions automatically):
# resources :products
# Sample resource route with options:
# resources :products do
# member do
# get 'short'
# post 'toggle'
# end
#
# collection do
# get 'sold'
# end
# end
# Sample resource route with sub-resources:
# resources :products do
# resources :comments, :sales
# resource :seller
# end
# Sample resource route with more complex sub-resources
# resources :products do
# resources :comments
# resources :sales do
# get 'recent', :on => :collection
# end
# end
# Sample resource route within a namespace:
# namespace :admin do
# # Directs /admin/products/* to Admin::ProductsController
# # (app/controllers/admin/products_controller.rb)
# resources :products
# end
# You can have the root of your site routed with "root"
# just remember to delete public/index.html.
# root :to => 'welcome#index'
# See how all your routes lay out with "rake routes"
# This is a legacy wild controller route that's not recommended for RESTful applications.
# Note: This route will make all actions in every controller accessible via GET requests.
# match ':controller(/:action(/:id))(.:format)'
end
日志 - 终端
ActionController::RoutingError (No route matches [GET] "/books/10/snippets/24"):
actionpack (3.2.6) lib/action_dispatch/middleware/debug_exceptions.rb:21:in `call'
actionpack (3.2.6) lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
railties (3.2.6) lib/rails/rack/logger.rb:26:in `call_app'
railties (3.2.6) lib/rails/rack/logger.rb:16:in `call'
actionpack (3.2.6) lib/action_dispatch/middleware/request_id.rb:22:in `call'
rack (1.4.5) lib/rack/methodoverride.rb:21:in `call'
rack (1.4.5) lib/rack/runtime.rb:17:in `call'
activesupport (3.2.6) lib/active_support/cache/strategy/local_cache.rb:72:in `call'
rack (1.4.5) lib/rack/lock.rb:15:in `call'
actionpack (3.2.6) lib/action_dispatch/middleware/static.rb:62:in `call'
railties (3.2.6) lib/rails/engine.rb:479:in `call'
railties (3.2.6) lib/rails/application.rb:220:in `call'
rack (1.4.5) lib/rack/content_length.rb:14:in `call'
railties (3.2.6) lib/rails/rack/log_tailer.rb:17:in `call'
rack (1.4.5) lib/rack/handler/webrick.rb:59:in `service'
c:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/webrick/httpserver.rb:138:in `service'
c:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/webrick/httpserver.rb:94:in `run'
c:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/webrick/server.rb:191:in `block in start_thread'
非常感谢帮助，或者了解如何更新嵌套注释会很有用。我可以进入编辑阶段，这很好，但它只是表格提交，从我理解的网络拖网处理“def update”。
再次感谢您的帮助。
答案 0 :(得分：0)
由于您已经在书籍中嵌套了片段，因此您必须嵌套控制器和视图，因此rails知道在哪里找到它们。控制器 - ＆gt;书籍 - ＆gt;例如，snippets_controller.rb。
答案 1 :(得分：0)
对我来说，似乎片段正在更新，但问题是重定向，如果
@snippet.update_attributes(params[:book])
format.html { redirect_to [@book, @snippet], notice: 'Comment was successfully updated.' }
您应该定义show方法
def show
end