From 4a86b86021d5ff2c323b06c8bf24797863b5d5fd Mon Sep 17 00:00:00 2001
From: cxt <853663049@qq.com>
Date: Sat, 20 Jul 2019 14:29:24 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=81=E7=A7=BB=E8=AF=BE=E5=A0=82=E5=88=86?=
 =?UTF-8?q?=E7=8F=ADposition?=
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---
 .../20190720062632_migrate_course_group_position.rb   | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 db/migrate/20190720062632_migrate_course_group_position.rb

diff --git a/db/migrate/20190720062632_migrate_course_group_position.rb b/db/migrate/20190720062632_migrate_course_group_position.rb
new file mode 100644
index 000000000..9b78c2e29
--- /dev/null
+++ b/db/migrate/20190720062632_migrate_course_group_position.rb
@@ -0,0 +1,11 @@
+class MigrateCourseGroupPosition < ActiveRecord::Migration[5.2]
+  def change
+    Course.find_each do |course|
+      position = 1
+      course.course_groups.reorder("CONVERT(course_groups.name USING gbk) COLLATE gbk_chinese_ci ASC").find_each do |group|
+        group.update_attribute(:position, position)
+        position += 1
+      end
+    end
+  end
+end