调整

db/migrate/20190314080805_create_shixun_student_works.rb

@@ -13,7 +13,6 @@ class CreateShixunStudentWorks < ActiveRecord::Migration
   end
 
   def up
-    ActiveRecord::Base.transaction do
     begin
       works = StudentWork.where("myshixun_id != 0 and myshixun_id not in (select id from myshixuns) and (work_score is null or work_score = 0)")
       works.update_all(:myshixun_id => 0, :work_status => 0, :work_score => nil, :final_score => nil,
@@ -23,6 +22,7 @@ class CreateShixunStudentWorks < ActiveRecord::Migration
       shixun_works.each do |work|
         shixun = work.homework_common.try(:homework_commons_shixuns).try(:shixun)
         user = work.user
+        ActiveRecord::Base.transaction do
           if shixun.present? && user.present?
             # 创建新的myshixun和games
             # fork版本库，如果用户没有同步，则先同步用户
@@ -80,13 +80,13 @@ class CreateShixunStudentWorks < ActiveRecord::Migration
             end
           end
         end
+      end
     rescue Exception => e
       puts ("###failed to exec shixun: current task id is #{e}")
       # g.delete_project(gshixun.id) if gshixun.try(:id).present?
       raise ActiveRecord::Rollback
     end
   end
-  end
 
   def down
   end