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[Rails] Couldn't find with 'id'=:id でupdateアクションが実行されない

Last updated at Posted at 2020-10-09

#解決方法

###@を消すと解消される

修正前

controller.rb
  def update
    @gear = find_gear_by_id
    @gear.update(gear_params)
    redirect_to gears_path
    flash[:notice] = "編集が完了しました"
  end


修正後

controller.rb
  def update
    gear = find_gear_by_id
    gear.update(gear_params)
    redirect_to gears_path
    flash[:notice] = "編集が完了しました"
  end

詳しい理由がわからない。。。

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