diff --git a/db/migrate/20190314025104_migration_shixun_student_work.rb b/db/migrate/20190314025104_migration_shixun_student_work.rb
new file mode 100644
index 00000000..c74b7379
--- /dev/null
+++ b/db/migrate/20190314025104_migration_shixun_student_work.rb
@@ -0,0 +1,30 @@
+class MigrationShixunStudentWork < ActiveRecord::Migration
+  def up
+    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,
+                                       :cost_time => 0, :update_time => nil, :compelete_status => 0, :commit_time => nil)
+
+    shixun_works = StudentWork.where("myshixun_id != 0 and myshixun_id not in (select id from myshixuns) and work_score > 0")
+    shixun_works.each do |work|
+      if work.homework_common && work.homework_common.homework_commons_shixuns.try(:shixun)
+        shixun = work.homework_common.homework_commons_shixuns.try(:shixun)
+
+        # 创建新的myshixun和games
+        myshixun = nil
+
+        work_score = work.final_score
+        work.homework_common.homework_challenge_settings.each do |setting|
+          if work_score > 1
+            myshixun.games.where(:challenge_id => setting.challenge_id).first.update_attributes(:status => 2)
+            work_score -= setting.score
+          end
+        end
+        
+        work.update_column("myshixun_id", myshixun.id)
+      end
+    end
+  end
+
+  def down
+  end
+end