update

mec-biz/src/main/java/com/ym/mec/biz/service/impl/CourseScheduleServiceImpl.java

@@ -1230,6 +1230,7 @@ public class CourseScheduleServiceImpl extends BaseServiceImpl<Long, CourseSched
                 .stream().map(Long::parseLong).collect(Collectors.toList());
         //所有的课程
         List<CourseSchedule> courseSchedules = courseScheduleDao.findByCourseScheduleIds(courseScheduleIds);
+        courseSchedules.sort(Comparator.comparing(CourseSchedule::getStartClassTime));
         //保存修改记录
         List<CourseScheduleModifyLog> scheduleModifyLogs = new ArrayList<>(courseSchedules.size());
         Date date = new Date();
@@ -1241,7 +1242,6 @@ public class CourseScheduleServiceImpl extends BaseServiceImpl<Long, CourseSched
             scheduleModifyLog.setOperatorId(user.getId());
             scheduleModifyLogs.add(scheduleModifyLog);
         });
-        courseSchedules.sort(Comparator.comparing(CourseSchedule::getStartClassTime));
 
         if (courseScheduleIds.size() != courseScheduleIds.size()) {
             throw new BizException("部分课程不存在");