调整

app/controllers/admins/competition_stages_controller.rb

@@ -60,7 +60,7 @@ class Admins::CompetitionStagesController < Admins::BaseController
             end
 
             # 如果计算的是最后一个阶段，则同时计算总成绩（只有一个阶段则不需计算）
-            if current_stage.max_end_time == current_competition.max_stage_end_time && current_competition.competition_stages.size != 0
+            if current_stage.max_end_time == current_competition.max_stage_end_time && current_competition.competition_stages.size > 1
               calculate_total_score current_competition
             end
           end
@@ -174,6 +174,7 @@ class Admins::CompetitionStagesController < Admins::BaseController
   end
 
   def calculate_total_score competition
+    competition.competition_scores.where(competition_stage_id: 0).destroy_all
     competition.competition_teams.each do |team|
       total_score = 0
       total_time = 0
@@ -183,8 +184,11 @@ class Admins::CompetitionStagesController < Admins::BaseController
         total_score += stage_score.try(:score).to_f * stage.score_rate
         total_time += stage_score.try(:cost_time).to_i
       end
+
+      unless team.competition_scores.exists?(competition_id: competition.id, competition_stage_id: 0)
         CompetitionScore.create!(user_id: team.user_id, competition_team_id: team.id, competition_id: competition.id,
                                  competition_stage_id: 0, score: total_score, cost_time: total_time)
       end
     end
   end
+end

app/helpers/competitions_helper.rb

@@ -39,10 +39,12 @@ module CompetitionsHelper
     stages = []
     statistic_stages = competition.competition_stages.where("score_rate > 0")
 
+    unless statistic_stages.size == 1
       end_time = competition.max_stage_end_time || competition.end_time
       if end_time && end_time < Time.now
         stages << {id: nil, name: statistic_stages.size > 1 ? "总排行榜" : "排行榜", rate: 1.0, start_time: competition.start_time, end_time: competition.end_time}
       end
+    end
 
     statistic_stages.each do |stage|
       if stage.max_end_time && stage.max_end_time < Time.now