From f76349219d6557aae0e8052d01ddf8116fd97a70 Mon Sep 17 00:00:00 2001
From: daiao <358551898@qq.com>
Date: Thu, 13 Feb 2020 18:43:10 +0800
Subject: [PATCH] 1

---
 lib/tasks/statistic_subject_info.rake | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/lib/tasks/statistic_subject_info.rake b/lib/tasks/statistic_subject_info.rake
index 3d0f0109c..61a8201a6 100644
--- a/lib/tasks/statistic_subject_info.rake
+++ b/lib/tasks/statistic_subject_info.rake
@@ -93,17 +93,16 @@ namespace :subjects do
         data = Subjects::ShixunUsedInfoService.call(subject)
         data.each do |key|
           next if key[:shixun_id].nil?
-          str += ", " unless str.empty?
-          str += ("(#{subject.id}, #{key[:shixun_id]}, '#{key[:stage]}', '#{key[:name]}', #{key[:challenge_count]}, " +
+          str << ("(#{subject.id}, #{key[:shixun_id]}, '#{key[:stage]}', '#{key[:name]}', #{key[:challenge_count]}, " +
               "#{key[:course_count]}, #{key[:school_count]}, #{key[:used_count]}, #{key[:passed_count]}, " +
               "#{key[:evaluate_count]}, #{key[:passed_ave_time]}, " +
               "'#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}', '#{Time.now.strftime('%Y-%m-%d %H:%M:%S')}')")
           if str.size == 1000
-            sql = "REPLACE INTO subject_shixun_infos(#{column_value}) VALUES #{str.uniq.join(",")}"
             str_c = str
+            str -= str_c
+            sql = "REPLACE INTO subject_shixun_infos(#{column_value}) VALUES #{str_c.uniq.join(",")}"
             puts sql
             ActiveRecord::Base.connection.execute sql
-            str -= str_c
           end
         end
       end