質問編集履歴
2
rooms_pathをroom_pathに変更
test
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@@ -46,6 +46,66 @@
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def show
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@room = Room.find(params[:id])
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@messages = @room.messages.includes(:user).order(:id).last(100)
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@message = current_user.messages.build
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end
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```
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### rooms_controller.rb
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```ruby
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class RoomsController < ApplicationController
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def index
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@rooms = Room.all.order(:id)
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end
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def new
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@room = Room.new
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@room.users << current_user
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end
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def create
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@room =Room.new(room_params)
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if @room.save
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redirect_to root_path
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else
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render :new
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end
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end
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def show
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@room = Room.find(params[:id]) #この行がエラーメッセージの対象となっています。
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@messages = @room.messages.includes(:user).order(:id).last(100)
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end
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def show_additionally
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last_id = params[:oldest_message_id].to_i - 1
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@messages = Message.includes(:user).order(:id).where(id: 1..last_id).last(50)
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end
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private
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def room_params
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params.require(:room).permit(:name).merge(user_ids: current_user.id)
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end
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end
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```
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```
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###
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### index.html.erb
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class RoomsController < ApplicationController
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@rooms
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end
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<div class="room_index_main">
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<ul class="family_lists">
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<% @rooms.each do |room| %>
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<li class="family_list"><%= link_to "#{room.name}", room_path(room.id), class:"family_button" %></li>
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<% end %>
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</ul>
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</div>
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```
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### new.html.erb
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```ruby
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<div id="message-container" data-room_id = "<%= @room.id %>">
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<%= render @messages %>
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</div>
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<%= render 'footer' %>
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```
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### routes.rb
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```ruby
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Rails.application.routes.draw do
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mount ActionCable.server => "/cable"
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resources :rooms, only: [:index, :new, :show, :create, :update] do
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resources :messages, only: [:create]
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end
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root to: "users#show"
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devise_for :users, controllers: {
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registrations: "users/registrations",
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sessions: "users/sessions"
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}
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resources :users, only: [:show]
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get "/show_additionally", to: "rooms#show_additionally"
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devise_scope :user do
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get "sign_in", to: "users/sessions#new"
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get "sign_out", to: "users/sessions#destroy"
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end
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end
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@@ -142,104 +240,6 @@
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### index.html.erb
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148
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-
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149
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```ruby
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150
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class RoomsController < ApplicationController
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-
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<div class="room_index_main">
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154
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<ul class="family_lists">
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<% @rooms.each do |room| %>
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<li class="family_list"><%= link_to "#{room.name}", rooms_path(room.id), class:"family_button" %></li>
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<% end %>
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</ul>
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</div>
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```
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### new.html.erb
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```ruby
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<div id="message-container" data-room_id = "<%= @room.id %>">
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<%= render @messages %>
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</div>
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<%= render 'footer' %>
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```
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### routes.rb
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```ruby
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Rails.application.routes.draw do
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mount ActionCable.server => "/cable"
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resources :rooms, only: [:index, :new, :show, :create, :update] do
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resources :messages, only: [:create]
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end
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root to: "users#show"
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devise_for :users, controllers: {
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registrations: "users/registrations",
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sessions: "users/sessions"
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}
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resources :users, only: [:show]
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get "/show_additionally", to: "rooms#show_additionally"
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devise_scope :user do
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get "sign_in", to: "users/sessions#new"
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get "sign_out", to: "users/sessions#destroy"
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end
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end
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```
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### 試したこと
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244
244
|
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245
245
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|
1
エラーの詳細を追加いたしました。
test
CHANGED
|
File without changes
|
test
CHANGED
|
@@ -18,9 +18,13 @@
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18
18
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19
19
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20
20
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21
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+
ルームコントローラーのindexアクションとshowアクションの機能を実装しておりました。
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22
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+
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23
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+
その過程で、incexのビューページにshowアクションのページに遷移するためのリンクを記述しています。
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24
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+
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21
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-
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25
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indexの記述に問題はなさそうなのですが、rooms_controllerのshowアクションのidの中身がindexとなってますという、エラーメッセージが発生しました。
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22
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-
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26
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+
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23
|
-
index.html.erbのビューページにアクセスしようとすると、以下のようなエラ
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27
|
+
index.html.erbのビューページにアクセスしようとすると、以下のようなエラーメッセージがでます。
|
|
24
28
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25
29
|
どうしてこのようなことが起きるのかについて教えていただきたいです。
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26
30
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