调整

app/controllers/application_controller.rb

@@ -632,7 +632,7 @@ class ApplicationController < ActionController::Base
 				subject = Subject.find_by(id: 149)
 				if subject
 					subject.courses.each do |course|
-						CourseMember.create!(course_id: course.id, role: 4, user_id: user.id) if !course.course_members.exists?(user_id: user.id)
+						CourseMember.create!(course_id: course.id, role: 3, user_id: user.id) if !course.course_members.exists?(user_id: user.id)
 					end
 				end
 			end