update

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

@@ -233,6 +233,17 @@ public class SubjectChangeServiceImpl extends BaseServiceImpl<Integer, SubjectCh
         if (studentWaitPay != null) {
             throw new BizException("已有未支付的声部更改，请勿重复创建");
         }
+        
+        String musicGroupId = subjectChange.getMusicGroupId();
+        
+        Set<String> musicGroupIds = new HashSet<String>();
+        musicGroupIds.add(musicGroupId);
+        
+        List<MusicGroupPurchaseList> musicGroupPurchaseListCount = musicGroupPurchaseListDao.getCount(musicGroupIds);
+        if (musicGroupPurchaseListCount.size() > 0) {
+            throw new BizException("乐团当前状态不能缴声部更改费用");
+        }
+        
         Date nowDate = new Date();
         SubjectChange studentOriginal = getStudentOriginal(subjectChange.getStudentId(), subjectChange.getMusicGroupId());
         if(studentOriginal != null){