跨域bug修复2

backend/services/attendance_service.py

@@ -41,9 +41,7 @@ class AttendanceService:
             return {"success": False, "message": "无权进行此操作"}
         
         # 检查是否同班级
-        can_manage = await PermissionChecker.check_can_manage_student(recorder_id, student_id)
-        if not can_manage:
-            return {"success": False, "message": "无权操作该学生"}
+        # 单班级系统，管理员均可操作
         
         # 添加考勤记录
         attendance_id = await AttendanceModel.create_record(
@@ -96,17 +94,12 @@ class AttendanceService:
         role = await PermissionChecker.get_user_role(user_id)
         
         if role in ["班主任", "考勤委员"]:
-            class_id = await PermissionChecker.get_user_class_id(user_id)
             records = await AttendanceModel.get_class_records(
-                class_id=class_id,
                 date=date,
                 student_id=student_id
             )
         elif student_id:
-            # 查看指定学生
-            can_manage = await PermissionChecker.check_can_manage_student(user_id, student_id)
-            if not can_manage:
-                return {"error": "无权查看该学生记录"}
+            # 管理员可查看指定学生
             records = await AttendanceModel.get_student_records(student_id)
         else:
             records = []