跨团合班逻辑调整

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

@@ -3745,6 +3745,9 @@ public class ClassGroupServiceImpl extends BaseServiceImpl<Integer, ClassGroup>
     public BigDecimal getMasterTotalPrice(Integer masterClassGroupId) {
         //获取主班剩余时长
         Map<String, BigDecimal> masterMap = MapUtil.convertIntegerMap(courseScheduleDao.querySubCourseTimeMap(masterClassGroupId));
+        if(masterMap.size() == 0){
+            throw new BizException("操作失败：所选主班没有剩余时长");
+        }
         //获取分布默认的课程类型单价
         MusicGroup musicGroup = musicGroupDao.findByClassGroupId(masterClassGroupId);
         Map<String, BigDecimal> unitPriceMap = MapUtil.convertIntegerMap(organizationCourseUnitPriceSettingsDao.queryMapByOrganIdAndChargeTypeId(musicGroup.getChargeTypeId(), musicGroup.getOrganId()));