fix: 网管课无剩余课时是修改课程组信息错误

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

@@ -4644,7 +4644,10 @@ public class CourseScheduleServiceImpl extends BaseServiceImpl<Long, CourseSched
 		Date date = new Date();
 		List<Long> courseIds1 = courseSchedules.stream().map(e -> e.getId()).collect(Collectors.toList());
 		//获取修改日志
-		List<CourseScheduleModifyLog> modifyLogs = getModifyLogs(courseIds1, courseSchedules, user.getId(), date);
+		List<CourseScheduleModifyLog> modifyLogs = new ArrayList<>();
+		if(!CollectionUtils.isEmpty(courseIds1)){
+			modifyLogs = getModifyLogs(courseIds1, courseSchedules, user.getId(), date);
+		}
 
 		PracticeGroup practiceGroup = practiceGroupDao.get(Long.valueOf(practiceGroupId));
 
@@ -4720,7 +4723,8 @@ public class CourseScheduleServiceImpl extends BaseServiceImpl<Long, CourseSched
 		//清除考勤申述
 		teacherAttendanceDao.clearAttendanceComplaints(courseScheduleIds);
 		//保存修改记录
-		saveModifyLog(modifyLogs,courseIds1);
+		if(!CollectionUtils.isEmpty(modifyLogs))
+			saveModifyLog(modifyLogs,courseIds1);
 
         if (teacherIdMap != null && teacherIdMap.size() > 0) {
             sysMessageService.batchSendMessage(MessageSender.JIGUANG, MessageTypeEnum.TEACHER_PUSH_COURSE_SCHEDULE_CHANGE_RESULT,