优化

app/controllers/challenges_controller.rb

@@ -161,8 +161,9 @@ class ChallengesController < ApplicationController
     @pass_games_map = @shixun.challenges.joins(:games).where(games: {status:2}).group(:challenge_id).reorder(nil).count
     @play_games_map = @shixun.challenges.joins(:games).where(games: {status:[0,1]}).group(:challenge_id).reorder(nil).count
 
-    @challenges = @shixun.challenges.joins("join games on games.challenge_id = challenges.id and games.user_id = #{current_user.id}")
+    @challenges = @shixun.challenges.joins("left join games on games.challenge_id = challenges.id and games.user_id = #{current_user.id}")
                       .select(base_columns)
+
     @editable = @shixun.status == 0 # before_action：有判断权限，如果没发布，则肯定是管理人员
     @user = current_user
     @shixun.increment!(:visits)