新增删除班级的条件判断

src/main/java/org/rcisoft/business/blesson/service/impl/BLessonServiceImpl.java

@@ -224,6 +224,9 @@ public class BLessonServiceImpl implements BLessonService {
         if(bSlRepository.selectslNumByLesson(id)>0) {
             throw new ServiceException(ResultServiceEnums.LESSON_HAS_SL);
         }
+        if(bSlRepository.isUse(id) > 0){
+            throw new ServiceException(ResultServiceEnums.LESSON_HAS_SL);
+        }
         BLesson bLesson = new BLesson();
         bLesson.setBusinessId(id);
         bLesson.setDeleted();

src/main/java/org/rcisoft/business/bsl/dao/BSlRepository.java

@@ -265,5 +265,7 @@ public interface BSlRepository extends BaseMapper<BSl> {
     int updateTeacher(@Param("businessId") String businessId, @Param("teacherCode") String teacherCode);
 
     //List<BStudent> querySlStudentByPagination(String slId);
+    @Select("SELECT count(*) from b_schedule_dto where lesson_code = (select lesson_code from b_lesson where business_id = #{lessonId}) and del_flag = 0")
+    int isUse(String lessonId);
 }