ネストしたルーティングの設定について

Question

トップページからshowアクションでページ遷移させようとlink_toを使って実装したところエラーが出てしまいます。
”現在のエントリーチーム情報”という箇所からlink_toで遷移させようとしています。

どなたかご教授ください。。。

#エラー文

ActionController::UrlGenerationError in Tournaments#index
Showing /Users/ebinumayuuki/projects/fotsal-goal-app/app/views/tournaments/index.html.erb where line #55 raised:

No route matches {:action=>"show", :controller=>"entries", :tournament_id=>nil}, missing required keys: [:id], possible unmatched constraints: [:tournament_id]
Extracted source (around line #55):
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          <span class = "team-show">
            <%= link_to "現在のエントリーチーム情報",tournament_entry_path(@tournament_id) %>
          </div>

        <% end %>

#rails routes

 root GET    /                                                                                        tournaments#index
                   tournament_entries GET    /tournaments/:tournament_id/entries(.:format)                                            entries#index
                                      POST   /tournaments/:tournament_id/entries(.:format)                                            entries#create
                 new_tournament_entry GET    /tournaments/:tournament_id/entries/new(.:format)                                        entries#new
                     tournament_entry GET    /tournaments/:tournament_id/entries/:id(.:format)                                        entries#show
                          tournaments GET    /tournaments(.:format)                                                                   tournaments#index
                                      POST   /tournaments(.:format)                                                                   tournaments#create
                       new_tournament GET    /tournaments/new(.:format)                                                               tournaments#new
                      edit_tournament GET    /tournaments/:id/edit(.:format)                                                          tournaments#edit
                           tournament GET    /tournaments/:id(.:format)                                                               tournaments#show
                                      PATCH  /tournaments/:id(.:format)                                                               tournaments#update
                                      PUT    /tournaments/:id(.:format)                                                               tournaments#update
                                      DELETE /tournaments/:id(.:format)                                                               tournaments#destroy

#entry controller

class EntriesController < ApplicationController
  before_action :authenticate_user!
  before_action :set_product, only: [:index,:create]



  def index
    @entry = Entry.new
  end

  def create
    @entry = Entry.new(entry_params)
    if @entry.save
      redirect_to root_path
    else
      render :index
    end

  end

  def new
    @entry = Entry.new
  end

  def show
    @entries = Entry.find(entry_params)
  end


  

  private

  def entry_params
    params.require(:entry).permit(:team_name,:team_captain,:phone).merge(user_id:current_user.id,tournament_id:@tournament.id)
  end

  def set_product
    @tournament = Tournament.find(params[:tournament_id])
  end
end

#tournament controller

class TournamentsController < ApplicationController
  before_action :set_q, only: [:index, :search]
  before_action :set_tournament, only: [:show,:edit,:update,:destroy]

  def index
    @tournament = Tournament.all
  end

  def new
    @tournament = Tournament.new
  end

  def create
    @tournament = Tournament.new(tournament_params)
    if @tournament.save
      redirect_to root_path
    else
      render :new
    end
  end

  def show
  end

  def edit
  end

  def update
    if @tournament.update(tournament_params)
      redirect_to tournament_path(@tournament.id)
    else
      render :edit
    end
  end

  def destroy
    @tournament.destroy
    redirect_to root_path
  end

  def search
    @results = q.result
  end


  private

  def tournament_params
    params.require(:tournament).permit(:event_month_id,:event_date_id,:event_time_id,:entry_participation_id,:fee,:event_address,:event_description,:event_title).merge(operation_id: current_operation.id)
  end

  def set_q
    @q = Tournament.ransack(params[:q])
  end

  def set_tournament
    @tournament = Tournament.find(params[:id])
  end


end

#routes.rb

Rails.application.routes.draw do
  devise_for :operations
  devise_for :users
  root to: "tournaments#index"
  resources :tournaments do
    resources :entries, only:[:index,:create,:new,:show]
  end
end

#トップページ　コード

上記省略

<span class = "team-show">
            <%= link_to "現在のエントリーチーム情報",tournament_entry_path(@tournament_id) %>
          </div>

Answer 1

tournament_entry_path(@tournament_id) というとtournament_entry GET /tournaments/:tournament_id/entries/:id(.:format) entries#show
になります。
:tournament_id　だけではなく　entries の　id　も必要です

Comments

[ebi---kani]

ありがとうございます！

修正の仕方としては

<%= link_to "現在のエントリーチーム情報",tournament_entry_path(@tournament.id,@entries.id) %>

このように実装してみたのですが、エラーのままになってしまいます。。。

[winterboum]

tournament_entry_path(@tournament,@entries)
または
tournament_entry_path(tournament_id: @tournament.id,id: entries.id)
で試してください

[ebi---kani]

修正してみたのですが、、、

#tournament_entry_path(@tournament,@entries)

```
ActionController::UrlGenerationError in Tournaments#index
Showing /Users/ebinumayuuki/projects/fotsal-goal-app/app/views/tournaments/index.html.erb where line #55 raised:

No route matches {:action=>"show", :controller=>"entries", :id=>nil, :tournament_id=>"#<Tournament::ActiveRecord_Relation:0x00007f9bb017e5f0>"}, missing required keys: [:id]
Extracted source (around line #55):
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<span class = "team-show">
<%= link_to "現在のエントリーチーム情報",tournament_entry_path(@tournament,@entries)%>
</div>

<% end %>

```
#tournament_entry_path(tournament_id: @tournament.id,id: entries.id)
```
NoMethodError in Tournaments#index
Showing /Users/ebinumayuuki/projects/fotsal-goal-app/app/views/tournaments/index.html.erb where line #55 raised:

undefined method `id' for #<Tournament::ActiveRecord_Relation:0x00007f9be2496670>
Did you mean? ids
Extracted source (around line #55):
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<span class = "team-show">
<%= link_to "現在のエントリーチーム情報",tournament_entry_path(tournament_id: @tournament.id,id: entries.id) %>
</div>

<% end %>
```

どちらもエラーが表示されてしまします。。。

[winterboum]

よく見ると　@entries　？？@entries
ここでは　Entry のデータはどこにあるの？
「上記省略」されてるからわからん

[ebi---kani]

ご教授ありがとうございます！
idの付与の仕方を変えたら無事に実装できました！