涉及乐团id类型修改

mec-biz/src/main/java/com/ym/mec/biz/dal/dao/ClassGroupTeacherMapperDao.java

@@ -25,4 +25,11 @@ public interface ClassGroupTeacherMapperDao extends BaseDAO<Long, ClassGroupTeac
      * @return
      */
     List<ClassGroupTeacherMapper> findClassGroupTeachers(@Param("classGroupList") List classGroupList);
+
+    /**
+     * 批量删除班级的老师关联关系
+     * @param classGroupTeacherMapperList
+     * @return
+     */
+    int delMusicGroupTeacherMapper(@Param("classGroupTeacherMapperList") List<ClassGroupTeacherMapper> classGroupTeacherMapperList);
 }

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

@@ -8,6 +8,7 @@ import com.ym.mec.biz.dal.entity.ClassGroupTeacherMapper;
 import com.ym.mec.biz.service.ClassGroupTeacherMapperService;
 import com.ym.mec.common.dal.BaseDAO;
 import com.ym.mec.common.service.impl.BaseServiceImpl;
+import org.springframework.transaction.annotation.Transactional;
 
 import java.util.List;
 
@@ -23,9 +24,10 @@ public class ClassGroupTeacherMapperServiceImpl extends BaseServiceImpl<Long, Cl
     }
 
     @Override
+    @Transactional(rollbackFor = Exception.class)
     public int classGroupTeachersInsert(List<ClassGroupTeacherMapper> classGroupTeacherMapperList) {
-        //删除已经设置的老师
-
+        //删除班级已经设置的老师
+        classGroupTeacherMapperDao.delMusicGroupTeacherMapper(classGroupTeacherMapperList);
         return classGroupTeacherMapperDao.classGroupTeachersInsert(classGroupTeacherMapperList);
     }