我正在尝试使用Rails开发一个直接消息传递应用程序，每当我尝试发送任何消息时，我就一直面临着这个问题。当我提交表格时，它给了我这个错误：
No route matches [POST] "/chat_rooms/1"
我的new.html.erb是：
<%= form_for @chat_room do |f| %>
<div class = "form-group">
<%= f.label :title %>
<%= f.text_field :title, autofocus: true, class: 'form-control' %>
</div>
<%= f.submit "Add!" ,class: 'btn btn-primary' %>
我的控制器文件是：
class ChatRoomsController < ApplicationController
def index
@chat_rooms = ChatRoom.all
end
def new
@chat_room = ChatRoom.new
end
def create
@chat_room = current_user.chat_rooms.build(chat_room_params)
if @chat_room.save
flash[:success] = 'Chat room added'
redirect_to chat_rooms_path
else
render 'new'
end
end
def show
@chat_room = ChatRoom.includes(:messages).find_by(id: params[:id])
@message = Message.new
end
private
def chat_room_params
params.require(:chat_room).permit(:title)
end
结束
我的route.rb是：
Rails.application.routes.draw do
devise_for :users
resources :chat_rooms, only: [:new, :create, :show, :index]
root 'chat_rooms#index'
mount ActionCable.server => '/cable'
end
服务器记录：
actionpack（5.2.0）lib / action_dispatch / middleware / debug_exceptions.rb：65：in call'
web-console (3.6.2) lib/web_console/middleware.rb:135:in call_app'
网络控制台（3.6.2）lib / web_console / middleware.rb：30：in block in call'
web-console (3.6.2) lib/web_console/middleware.rb:20:in catch'
网络控制台（3.6.2）lib / web_console / middleware.rb：20：在call'
actionpack (5.2.0) lib/action_dispatch/middleware/show_exceptions.rb:33:in通话中
railties（5.2.0）lib / rails / rack / logger.rb：38：in call_app'
railties (5.2.0) lib/rails/rack/logger.rb:26:in中的通话'
activesupport（5.2.0）lib / active_support / tagged_logging.rb：71：in block in tagged'
activesupport (5.2.0) lib/active_support/tagged_logging.rb:28:in tagged'
activesupport（5.2.0）lib / active_support / tagged_logging.rb：71：在tagged'
railties (5.2.0) lib/rails/rack/logger.rb:26:in通话中
sprockets-rails（3.2.1）lib / sprockets / rails / quiet_assets.rb：13：在call'
actionpack (5.2.0) lib/action_dispatch/middleware/remote_ip.rb:81:in中呼叫“
actionpack（5.2.0）lib / action_dispatch / middleware / request_id.rb：27：在call'
rack (2.0.5) lib/rack/method_override.rb:22:in通话中
机架（2.0.5）lib / rack / runtime.rb：22：in call'
activesupport (5.2.0) lib/active_support/cache/strategy/local_cache_middleware.rb:29:in call'
actionpack（5.2.0）lib / action_dispatch / middleware / executor.rb：14：in call'
actionpack (5.2.0) lib/action_dispatch/middleware/static.rb:127:in call'
机架（2.0.5）lib / rack / sendfile.rb：111：in call'
railties (5.2.0) lib/rails/engine.rb:524:in call'
puma（3.11.4）lib / puma / configuration.rb：225：in call'
puma (3.11.4) lib/puma/server.rb:632:in handle_request'
puma（3.11.4）lib / puma / server.rb：446：in process_client'
puma (3.11.4) lib/puma/server.rb:306:in在运行中阻止'
彪马（3.11.4）lib / puma / thread_pool.rb：120：in`spawn_thread中的块'
耙路的输出：
Prefix Verb URI Pattern Controller#Action
new_user_session GET /users/sign_in(.:format) devise/sessions#new
user_session POST /users/sign_in(.:format) devise/sessions#create
destroy_user_session DELETE /users/sign_out(.:format) devise/sessions#destroy
new_user_password GET /users/password/new(.:format) devise/passwords#new
edit_user_password GET /users/password/edit(.:format) devise/passwords#edit
user_password PATCH /users/password(.:format) devise/passwords#update
PUT /users/password(.:format) devise/passwords#update
POST /users/password(.:format) devise/passwords#create
cancel_user_registration GET /users/cancel(.:format) devise/registrations#cancel
new_user_registration GET /users/sign_up(.:format) devise/registrations#new
edit_user_registration GET /users/edit(.:format) devise/registrations#edit
user_registration PATCH /users(.:format) devise/registrations#update
PUT /users(.:format) devise/registrations#update
DELETE /users(.:format) devise/registrations#destroy
POST /users(.:format) devise/registrations#create
chat_rooms GET /chat_rooms(.:format) chat_rooms#index
POST /chat_rooms(.:format) chat_rooms#create
new_chat_room GET /chat_rooms/new(.:format) chat_rooms#new
chat_room GET /chat_rooms/:id(.:format) chat_rooms#show
root GET / chat_rooms#index
/cable #<ActionCable::Server::Base:0x007f6d0400ff50 @mutex=#<Monitor:0x007f6d0400ff28 @mon_owner=nil, @mon_count=0, @mon_mutex=#<Thread::Mutex:0x007f6d0400fed8>>, @pubsub=nil, @worker_pool=nil, @event_loop=nil, @remote_connections=nil>
rails_service_blob GET /rails/active_storage/blobs/:signed_id/*filename(.:format) active_storage/blobs#show
rails_blob_representation GET /rails/active_storage/representations/:signed_blob_id/:variation_key/*filename(.:format) active_storage/representations#show
rails_disk_service GET /rails/active_storage/disk/:encoded_key/*filename(.:format) active_storage/disk#show
update_rails_disk_service PUT /rails/active_storage/disk/:encoded_token(.:format) active_storage/disk#update
rails_direct_uploads POST /rails/active_storage/direct_uploads(.:format) active_storage/direct_uploads#create
答案 0 :(得分：0)
您应在表单中指定网址：
<%= form_for @chat_room, url: chat_rooms_path, method: :post do |f| %>
答案 1 :(得分：0)
好像您忘记添加路线了。您必须在路线中添加update操作。
修改为：
resources :chat_rooms, only: [:new, :create, :show, :index]
对此：
resources :chat_rooms, only: [:new, :create, :show, :index, :update]
此外，向控制器添加更新操作：
def update
respond_to do |format|
if @class_room.update(chat_room_params)
format.html { redirect_to @chat_room, notice: 'Chat Room was successfully updated.' }
format.json { render :show, status: :ok, location: @chat_room }
else
format.html { render :edit }
format.json { render json: @class_room.errors, status: :unprocessable_entity }
end
end
end
答案 2 :(得分：0)
在网址中指定操作，然后尝试。
<%= form_for @chat_room, url: {action: "create"} do |f| %>
<div class = "form-group">
<%= f.label :title %>
<%= f.text_field :title, autofocus: true, class: 'form-control' %>
</div>
<%= f.submit "Add!" ,class: 'btn btn-primary' %>