#41

backend/app/controllers/gekanator_games_controller.rb

@@ -8,7 +8,7 @@ class GekanatorGamesController < ApplicationController
         user: current_user,
         guessed_post_id: params.require(:guessed_post_id),
         correct_post_id: params[:correct_post_id].presence,
-        won: bool?(:won),
+        won: params[:guessed_post_id].to_i == params[:correct_post_id].to_i,
         question_count: params.require(:question_count),
         answers:)
 

backend/app/models/gekanator_game.rb

@@ -4,15 +4,7 @@ class GekanatorGame < ApplicationRecord
   belongs_to :correct_post, class_name: 'Post', optional: true
 
   validates :answers, presence: true
+  validates :correct_post, presence: true
   validates :question_count, numericality: { greater_than_or_equal_to: 0 }
   validates :won, inclusion: { in: [true, false] }
-  validate :correct_post_required_when_lost
-
-  private
-
-  def correct_post_required_when_lost
-    return if won || correct_post_id.present?
-
-    errors.add(:correct_post_id, '外れた時は正解の投稿を指定してくださぃ．')
-  end
 end