没有排课自己返回

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

@@ -110,6 +110,10 @@ public class ClassGroupTeacherMapperServiceImpl extends BaseServiceImpl<Long, Cl
 
         List<CourseSchedule> classGroupNoStartCourseSchedules = courseScheduleService.findClassGroupNoStartCourseSchedules(classGroupTeacherMapperList);
 
+        if(classGroupNoStartCourseSchedules == null || classGroupNoStartCourseSchedules.size()==0){
+            return true;
+        }
+
         for (CourseSchedule classGroupNoStartCourseSchedule : classGroupNoStartCourseSchedules) {
 
             if (!classGroupNoStartCourseSchedule.getType().equals(CourseSchedule.CourseScheduleType.SINGLE) &&