From a4e0cd9f33bb36fce68cab003c88665dfedc3caf Mon Sep 17 00:00:00 2001
From: cxt <853663049@qq.com>
Date: Wed, 4 Dec 2019 14:32:44 +0800
Subject: [PATCH] =?UTF-8?q?=E5=88=A0=E9=99=A4=E9=87=8D=E5=A4=8D=E8=AE=B0?=
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---
 ...204030230_migrate_exercise_single_question_score.rb |  2 +-
 db/migrate/20191204062733_add_temp_migration.rb        |  2 +-
 .../20191204063225_add_exercise_temp_migration.rb      | 10 ++++++++++
 3 files changed, 12 insertions(+), 2 deletions(-)
 create mode 100644 db/migrate/20191204063225_add_exercise_temp_migration.rb

diff --git a/db/migrate/20191204030230_migrate_exercise_single_question_score.rb b/db/migrate/20191204030230_migrate_exercise_single_question_score.rb
index a69e8ecef..ddb9a2794 100644
--- a/db/migrate/20191204030230_migrate_exercise_single_question_score.rb
+++ b/db/migrate/20191204030230_migrate_exercise_single_question_score.rb
@@ -2,7 +2,7 @@ class MigrateExerciseSingleQuestionScore < ActiveRecord::Migration[5.2]
   def change
     # 删除判断、单选题中生成多条记录，但exercise_choice_id不同的数据
     sql = %Q(delete from exercise_answers where (exercise_question_id, user_id) in
-            (select * from (select exercise_question_id, user_id from exercise_answers join exercise_questions eq on exercise_question_id = eq.id where eq.question_type in (0, 2) group by exercise_question_id, user_id, exercise_choice_id having count(*) > 1) a)
+            (select * from (select exercise_question_id, user_id from exercise_answers join exercise_questions eq on exercise_question_id = eq.id where eq.question_type in (0, 2) group by exercise_question_id, user_id having count(*) > 1) a)
             and id not in (select * from (select min(exercise_answers.id) from exercise_answers join exercise_questions eq on exercise_question_id = eq.id where eq.question_type in (0, 2) group by exercise_question_id, user_id having count(*) > 1 order by exercise_answers.id) b))
     ActiveRecord::Base.connection.execute sql
 
diff --git a/db/migrate/20191204062733_add_temp_migration.rb b/db/migrate/20191204062733_add_temp_migration.rb
index f8692c070..691e5e5ca 100644
--- a/db/migrate/20191204062733_add_temp_migration.rb
+++ b/db/migrate/20191204062733_add_temp_migration.rb
@@ -2,7 +2,7 @@ class AddTempMigration < ActiveRecord::Migration[5.2]
   def change
     # 删除判断、单选题中生成多条记录，但exercise_choice_id不同的数据
     sql = %Q(delete from exercise_answers where (exercise_question_id, user_id) in
-            (select * from (select exercise_question_id, user_id from exercise_answers join exercise_questions eq on exercise_question_id = eq.id where eq.question_type in (0, 2) group by exercise_question_id, user_id, exercise_choice_id having count(*) > 1) a)
+            (select * from (select exercise_question_id, user_id from exercise_answers join exercise_questions eq on exercise_question_id = eq.id where eq.question_type in (0, 2) group by exercise_question_id, user_id having count(*) > 1) a)
             and id not in (select * from (select min(exercise_answers.id) from exercise_answers join exercise_questions eq on exercise_question_id = eq.id where eq.question_type in (0, 2) group by exercise_question_id, user_id having count(*) > 1 order by exercise_answers.id) b))
     ActiveRecord::Base.connection.execute sql
 
diff --git a/db/migrate/20191204063225_add_exercise_temp_migration.rb b/db/migrate/20191204063225_add_exercise_temp_migration.rb
new file mode 100644
index 000000000..7f9428911
--- /dev/null
+++ b/db/migrate/20191204063225_add_exercise_temp_migration.rb
@@ -0,0 +1,10 @@
+class AddExerciseTempMigration < ActiveRecord::Migration[5.2]
+  def change
+    # 删除判断、单选题中生成多条记录，但exercise_choice_id不同的数据
+    sql = %Q(delete from exercise_answers where (exercise_question_id, user_id) in
+            (select * from (select exercise_question_id, user_id from exercise_answers join exercise_questions eq on exercise_question_id = eq.id where eq.question_type in (0, 2) group by exercise_question_id, user_id having count(*) > 1) a)
+            and id not in (select * from (select min(exercise_answers.id) from exercise_answers join exercise_questions eq on exercise_question_id = eq.id where eq.question_type in (0, 2) group by exercise_question_id, user_id having count(*) > 1 order by exercise_answers.id) b))
+    ActiveRecord::Base.connection.execute sql
+
+  end
+end