update

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

@@ -1801,6 +1801,11 @@ public class ClassGroupServiceImpl extends BaseServiceImpl<Integer, ClassGroup>
         //3、将老师加入关联关系
         List<ClassGroupTeacherMapper> classGroupTeacherMapperList = classGroup4MixDtos.get(0).getClassGroupTeacherMapperList();
 
+        Set<Integer> noRepeatTeacherIds = classGroupTeacherMapperList.stream().map(ClassGroupTeacherMapper::getUserId).collect(Collectors.toSet());
+        if(noRepeatTeacherIds.size()!=classGroupTeacherMapperList.size()){
+            throw new BizException("主教与助教存在冲突");
+        }
+
         Integer teacherId = null;
         for (ClassGroupTeacherMapper groupTeacherMapper : classGroupTeacherMapperList) {
             groupTeacherMapper.setGroupType(classGroup.getGroupType());
@@ -2098,6 +2103,12 @@ public class ClassGroupServiceImpl extends BaseServiceImpl<Integer, ClassGroup>
 
         //1、更新班级关联老师信息
         List<ClassGroupTeacherMapper> newClassGroupTeacherMapperList = classGroup4MixDtos.get(0).getClassGroupTeacherMapperList();
+
+        Set<Integer> noRepeatTeacherIds = newClassGroupTeacherMapperList.stream().map(ClassGroupTeacherMapper::getUserId).collect(Collectors.toSet());
+        if(noRepeatTeacherIds.size()!=newClassGroupTeacherMapperList.size()){
+            throw new BizException("主教与助教存在冲突");
+        }
+
         Integer teacherId = null;
         for (ClassGroupTeacherMapper groupTeacherMapper : newClassGroupTeacherMapperList) {
             groupTeacherMapper.setGroupType(classGroup.getGroupType());
@@ -2410,6 +2421,11 @@ public class ClassGroupServiceImpl extends BaseServiceImpl<Integer, ClassGroup>
         //3、将老师加入关联关系
         List<ClassGroupTeacherMapper> classGroupTeacherMapperList = classGroup4MixDtos.get(0).getClassGroupTeacherMapperList();
 
+        Set<Integer> noRepeatTeacherIds = classGroupTeacherMapperList.stream().map(ClassGroupTeacherMapper::getUserId).collect(Collectors.toSet());
+        if(noRepeatTeacherIds.size()!=classGroupTeacherMapperList.size()){
+            throw new BizException("主教与助教存在冲突");
+        }
+
         Integer teacherId = null;
         for (ClassGroupTeacherMapper groupTeacherMapper : classGroupTeacherMapperList) {
             groupTeacherMapper.setGroupType(classGroup.getGroupType());