课程信息删除同时删除学习记录

src/main/java/com/teaching/backend/controller/records/LearningRecordsController.java

@@ -5,6 +5,7 @@ import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
 import com.teaching.backend.common.BaseResponse;
 import com.teaching.backend.common.ResultUtils;
 
+import com.teaching.backend.filter.ValidateParams;
 import com.teaching.backend.model.entity.records.LearningRecords;
 import com.teaching.backend.model.vo.records.LearningRecordsVo;
 import com.teaching.backend.service.impl.records.LearningRecordsServiceImpl;
@@ -31,6 +32,7 @@ public class LearningRecordsController {
      * @return
      */
     @ApiOperation("根据用户id查询学习记录")
+    @ValidateParams({"userId"})
     @GetMapping("/getall")
     public BaseResponse<Page> getAll(@RequestParam(value = "pagenum", defaultValue = "1") int pagenum,
                                      @RequestParam(value = "pagesize", defaultValue = "10") int pagesize,
@@ -69,6 +71,7 @@ public class LearningRecordsController {
      * @return
      */
     @ApiOperation("添加学习记录")
+    @ValidateParams({"userId","type","coursesId"})
     @PostMapping("/saverecords")
     public BaseResponse<String> saveRecords(@RequestBody LearningRecords learningRecords){
         System.out.println(learningRecords);
@@ -81,9 +84,8 @@ public class LearningRecordsController {
      * @return
      */
     @DeleteMapping("/delete")
+    //@ValidateParams({"ids"})
     public BaseResponse<String> deleteRecords(@RequestParam List<Long> ids){
-
         return ResultUtils.success(learningRecordsService.delete(ids));
     }
-
 }

src/main/java/com/teaching/backend/service/impl/CourseResourcesServiceImpl.java

@@ -173,7 +173,7 @@ public class CourseResourcesServiceImpl extends ServiceImpl<CourseResourcesMappe
             break;
             case 6 : courseResources.setImg("src\\assets\\images\\audio.png"); //音频
             break;
-            default: courseResources.setImg(""); //暂无默认图片
+            default: courseResources.setImg("图片丢失!!"); //暂无默认图片
         }
         this.save(courseResources);
     }

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

@@ -11,12 +11,14 @@ import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
 import com.teaching.backend.common.ErrorCode;
 import com.teaching.backend.exception.BusinessException;
 import com.teaching.backend.mapper.courses.*;
+import com.teaching.backend.mapper.records.LearningRecordsMapper;
 import com.teaching.backend.mapper.umsAdmin.UmsAdminMapper;
 import com.teaching.backend.mapper.umsAdmin.UmsAdminRoleRelationMapper;
 import com.teaching.backend.mapper.umsAdmin.UmsTeacherMapper;
 import com.teaching.backend.model.dto.courses.CoursesDTO;
 import com.teaching.backend.model.dto.courses.PageDTO;
 import com.teaching.backend.model.entity.courses.*;
+import com.teaching.backend.model.entity.records.LearningRecords;
 import com.teaching.backend.model.entity.umsAdmin.UmsAdmin;
 import com.teaching.backend.model.entity.umsAdmin.UmsAdminRoleRelation;
 import com.teaching.backend.model.entity.umsAdmin.UmsTeacher;
@@ -79,6 +81,8 @@ public class CoursesServiceImpl extends ServiceImpl<CoursesMapper, Courses> impl
     StudentCoursesMapper studentCoursesMapper;
     @Autowired
     ObjectiveContentKnowMapper objectiveContentKnowMapper;
+    @Autowired
+    private LearningRecordsMapper learningRecordsMapper;
 
 
     @Override
@@ -264,6 +268,13 @@ public class CoursesServiceImpl extends ServiceImpl<CoursesMapper, Courses> impl
         courseObjectivesMapper.deleteBatchIds(objectiveIds);
         coursesMapper.deleteById(id);
 
+        //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
+        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);
     }
 
     @Override