肖海南查老师所教的学生方法修改

src/main/java/com/teaching/backend/service/courses/ICoursesService.java

@@ -51,6 +51,8 @@ public interface ICoursesService extends IService<Courses> {
     Map<String, Object> getPagePageSize2(int page, int pageSize);
 
     List<PersonalCenterStudentListVO> queryStudentList(String userId);
+    LinkedHashSet<UmsStudentManage> queryTeacherByStudentLearningRecordList(String userId);
+
     LinkedHashSet<UmsStudentManage> queryTeacherByStudentList(String userId);
 
     List<CourseUserInfVO> getUserInfByCourse(Long userId);

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

@@ -360,8 +360,7 @@ public class CoursesServiceImpl extends ServiceImpl<CoursesMapper, Courses> impl
 
     @Override
     public List<PersonalCenterStudentListVO> queryStudentList(String userId) {
-        LinkedHashSet<UmsStudentManage> umsStudentManageList = queryTeacherByStudentList(userId);
-        System.out.println("1111111"+umsStudentManageList);
+        LinkedHashSet<UmsStudentManage> umsStudentManageList = queryTeacherByStudentLearningRecordList(userId);
         List<PersonalCenterStudentListVO> personalCenterStudentListVOList = new ArrayList<>();
         PersonalCenterStudentListVO personalCenterStudentListVO = null;
         for (UmsStudentManage umsStudentManage : umsStudentManageList) {
@@ -375,7 +374,7 @@ public class CoursesServiceImpl extends ServiceImpl<CoursesMapper, Courses> impl
     }
 
     @Override
-    public LinkedHashSet<UmsStudentManage> queryTeacherByStudentList(String userId) {
+    public LinkedHashSet<UmsStudentManage> queryTeacherByStudentLearningRecordList(String userId) {
         String roleId = umsUserMapper.getByIdRoleId(userId);
         CourseQuery courseQuery = new CourseQuery();
         courseQuery.setUserId(userId);
@@ -404,7 +403,27 @@ public class CoursesServiceImpl extends ServiceImpl<CoursesMapper, Courses> impl
         throw new BusinessException(400,"只有老师才有此功能");
     }
 
-
+    @Override
+    public LinkedHashSet<UmsStudentManage> queryTeacherByStudentList(String userId) {
+        String roleId = umsUserMapper.getByIdRoleId(userId);
+        CourseQuery courseQuery = new CourseQuery();
+        courseQuery.setUserId(userId);
+        LinkedHashSet<UmsStudentManage> umsStudentManageList = new LinkedHashSet<>();
+        if (roleId.equals("1")){
+            PageDTO<CoursesVO> queryCourses = queryCourses(courseQuery);
+            List<CoursesVO> coursesList = queryCourses.getList();
+            List<String> courseIds = coursesList.stream().map(CoursesVO::getId).collect(Collectors.toList());
+            for (String courseId : courseIds) {
+                List<StudentCourses> studentUsernames = studentCoursesMapper.selectBatchSomeStudent(courseId);
+                for (StudentCourses studentUsername : studentUsernames) {
+                    UmsStudentManage umsStudentManage = umsStudentManageMapper.queryStudent(String.valueOf(studentUsername.getStudent()));
+                    umsStudentManageList.add(umsStudentManage);
+                }
+            }
+            return umsStudentManageList;
+        }
+        throw new BusinessException(400,"只有老师才有此功能");
+    }
 
     @Override
     public List<CoursesVO> getPagePageSize(int page, int pageSize) {