修复考勤管理bug并加强了信息保护

backend/services/conduct_service.py

@@ -196,7 +196,8 @@ class ConductService:
         page_size: int = 20,
         start_date: Optional[str] = None,
         end_date: Optional[str] = None,
-        grouped: bool = False
+        grouped: bool = False,
+        related_type: Optional[str] = None
     ) -> Dict[str, Any]:
         """获取历史记录"""
         # 空字符串转为None
@@ -204,6 +205,8 @@ class ConductService:
             start_date = None
         if end_date == "":
             end_date = None
+        if related_type == "":
+            related_type = None
         
         role = await PermissionChecker.get_user_role(user_id)
         offset = (page - 1) * page_size
@@ -224,7 +227,8 @@ class ConductService:
                 offset=offset,
                 start_date=start_date,
                 end_date=end_date,
-                student_id=student_id
+                student_id=student_id,
+                related_type=related_type
             )
             
             # 获取总数
@@ -240,6 +244,9 @@ class ConductService:
             if end_date:
                 count_conditions.append("DATE(cr.created_at) <= %s")
                 count_params.append(end_date)
+            if related_type:
+                count_conditions.append("cr.related_type = %s")
+                count_params.append(related_type)
             count_where = " AND ".join(count_conditions)
             count_sql = f"""
                 SELECT COUNT(*) as total FROM conduct_records cr