注册老师时，自动加入示例课堂

app/services/users/update_account_service.rb

@@ -51,8 +51,10 @@ class Users::UpdateAccountService < ApplicationService
 
     if first_full_reward
       RewardGradeService.call(user, container_id: user.id, container_type: 'Account', score: 500)
-
-      sms_notify_admin(user.lastname) if user.user_extension.teacher?
+      if user.user_extension.teacher?
+        join_course(user.id,1309, 2)
+        sms_notify_admin(user.lastname)
+      end
     end
 
     user
@@ -73,4 +75,11 @@ class Users::UpdateAccountService < ApplicationService
   rescue => ex
     Util.logger_error(ex)
   end
+
+  def join_course(user_id, course_id, identity)
+    course = Course.find_by(id: course_id)
+    return unless course
+    attr = {course_id: course_id, role: identity, user_id: user_id}
+    CourseMember.create!(attr)
+  end
 end