Question

我是Rails的新手，无法通过我创建的命名空间找到解决问题的方法。

问题是，如果我想在localhost:3000/manage/下显示我的所有房间，它就不起作用。

错误：nil的未定义方法`title'：NilClass。

如果我尝试在../manage/rooms/下显示我的所有房间，它仍然没有显示我创建的所有房间错误：找不到ID ...如果我使用id，例如../manage/rooms/38它正在发挥作用。希望可以有人帮帮我。所以我们走了：我创建了一个命名空间： routes.rb中：

resources :manage

namespace :manage do
 resources :rooms
end

耙路线：

  manage_index GET    /manage(.:format)                  manage#index
                     POST   /manage(.:format)                  manage#create
          new_manage GET    /manage/new(.:format)              manage#new
         edit_manage GET    /manage/:id/edit(.:format)         manage#edit
              manage GET    /manage/:id(.:format)              manage#show
                     PATCH  /manage/:id(.:format)              manage#update
                     PUT    /manage/:id(.:format)              manage#update
                     DELETE /manage/:id(.:format)              manage#destroy
        manage_rooms GET    /manage/rooms(.:format)            manage/rooms#index
                     POST   /manage/rooms(.:format)            manage/rooms#create
     new_manage_room GET    /manage/rooms/new(.:format)        manage/rooms#new
    edit_manage_room GET    /manage/rooms/:id/edit(.:format)   manage/rooms#edit
         manage_room GET    /manage/rooms/:id(.:format)        manage/rooms#show
                     PATCH  /manage/rooms/:id(.:format)        manage/rooms#update
                     PUT    /manage/rooms/:id(.:format)        manage/rooms#update
                     DELETE /manage/rooms/:id(.:format)        manage/rooms#destroy

在../ manage / rooms_controller.rb

下的控制器

class Manage::RoomsController < ApplicationController
 def index
   @rooms = Room.all
 end
 def new
  @room = Room.new
 end

def create
  #ender text: params[:rooms].inspect
  #render text: Rails.logger.info(params[:rooms].inspect)
  @room = Room.new(room_params)

if @room.save
  redirect_to [:manage, @room]
else
  render 'new'
end

end

def show
 @room = Room.find(params[:id])
end

def edit
 @room = Room.find(params[:id])
end

def update
 @room = Room.find(params[:id])

if @room.update(params[:rooms].permit(:number_of_rooms, :occupancy, :room_type, :gender, :title))
  redirect_to [:manage, @room]
else
  render 'edit'
end
end

def destroy
 @room = Room.find(params[:id])
 @room.destroy

 redirect_to manage_index_path
end

private
 def room_params
   params.require(:rooms).permit(:number_of_rooms, :occupancy, :room_type, :gender, :title)
 end
end

，在... manage/rooms/_index.html.erb下，它会在/layouts/_navigation_left.html.erb

中呈现

谢谢！如果您需要更多信息，请询问。

谢谢对不起我是Rails的新手。如何更改控制器/路由，以便我不仅可以管理@rooms甚至@foo，@ _F ......感谢。

我尝试使用：我想展示<%= @room.title %> <%= @room.number_of_rooms %>或者您还需要其他东西吗？抱歉! 和<%= render 'manage/rooms/index'%>

Rails名称空间foo.all无效

0 个答案: