学习记录观看人数是否加1

src/main/java/com/teaching/backend/service/impl/courses/CoursesServiceImpl.java

@@ -263,11 +263,15 @@ public class CoursesServiceImpl extends ServiceImpl<CoursesMapper, Courses> impl
 
         //删除课程的同时删除对应的记录
         //先通过id查出对应的记录
+        System.out.println("删!");
         LambdaQueryWrapper<LearningRecords> lambdaQueryWrapper = new LambdaQueryWrapper<>();
-        System.out.println("id:"+id);
         lambdaQueryWrapper.eq(LearningRecords::getCoursesId, id).eq(LearningRecords::getType, 1);//课程的type为1
         System.out.println("学习记录删除:"+learningRecordsMapper.selectList(lambdaQueryWrapper));
-        learningRecordsMapper.delete(lambdaQueryWrapper);
+        List<LearningRecords> list = learningRecordsMapper.selectList(lambdaQueryWrapper);
+        if (list.size() > 0){
+            learningRecordsMapper.deleteBatchIds(list);
+        }
+        System.out.println("无记录!");
     }
 
     @Override

src/main/java/com/teaching/backend/service/impl/records/LearningRecordsServiceImpl.java

@@ -127,7 +127,7 @@ public class LearningRecordsServiceImpl extends ServiceImpl<LearningRecordsMappe
             throw new BusinessException(ErrorCode.PARAMS_ERROR);
         }
 
-        System.out.println("学习记录:"+learningRecords);
+//        System.out.println("学习记录:"+learningRecords);
         //查找该用户是否观看过该学习资源
         LambdaQueryWrapper<LearningRecords> lambdaQueryWrapper = new LambdaQueryWrapper<>();
         lambdaQueryWrapper
@@ -144,15 +144,16 @@ public class LearningRecordsServiceImpl extends ServiceImpl<LearningRecordsMappe
             learningRecords.setContent("img/v2-c57eb7863ec4233f503176ca3f90f8d5_1440w.png");
         }
         List<LearningRecords> list = query().eq("courses_id", coursesId).eq("type", learningRecords.getType()).list();
-        int number;
+        LearningRecords one1 = query().eq("courses_id", coursesId).eq("type", learningRecords.getType()).eq("user_id", userId).one();
-        if (list != null){
+        int number = list.size();
-            number = list.get(0).getNumber() + 1;
+        //该用户是否学习过
+        if (one1 != null){//学习过观看人数不加
             learningRecords.setNumber(number);
             list.forEach(learningRecords1 -> {
                 learningRecords1.setNumber(number);
             });
-        } else {
+        } else {//否则观看人数加1
-            number = 0;
+            learningRecords.setNumber(number + 1);
         }
         updateBatchById(list);
         if (count == 0){//如果没有就新增并记录学习方式是打开还是下载