fix alarm records 2024-06-04

unify_api/modules/alarm_manager/service/list_alarm_service.py

@@ -245,6 +245,9 @@ async def wx_list_alarm_zdu_service(cid, point_list, start, end):
 
 
 async def pack_alarm_records(records, pid, lang):
+    if not records:
+        return []
+
     alarm_recs, mtr_names = [], {}
     if lang != "zh_CN":
         mtids = [r["mtid"] for r in records]
@@ -328,6 +331,9 @@ async def list_alarm_service(cid, user_id, point_id, start, end, importance,
 
     conds_str = " AND ".join(["point_1min_event." + i for i in conds])
     alarm_lst = await get_list_alarm_dao(conds_str, page_size, page_num)
+    if not alarm_lst:
+        return ListAlarmResponse(total=0, rows=[])
+
     lang = await load_user_lang(user_id)
     alarm_records = await pack_alarm_records(alarm_lst, point_id, lang)
     return ListAlarmResponse(total=total, rows=alarm_records)