From acd37d0e1918525765208dc28dfaf9d0b32fe0af Mon Sep 17 00:00:00 2001
From: ping <1017253325@qq.com>
Date: Thu, 18 Jun 2026 16:35:34 +0800
Subject: [PATCH] =?UTF-8?q?=E8=BF=90=E8=90=A5=E6=8A=A5=E8=A1=A8=20?=
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---
 b/cntoai/model_usage_admin_report.dspy | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/b/cntoai/model_usage_admin_report.dspy b/b/cntoai/model_usage_admin_report.dspy
index 5a6355e..6f7af45 100644
--- a/b/cntoai/model_usage_admin_report.dspy
+++ b/b/cntoai/model_usage_admin_report.dspy
@@ -127,6 +127,10 @@ def _format_amount_summary(summary):
     return formatted
 
 
+def _usage_time_sort_key(item):
+    return str(item.get('last_usage_time') or '')
+
+
 def _normalize_usage_row(row, bill_amount_map=None):
     usage = _parse_usage_content(row.get('usage_content'))
     orderid = row.get('orderid')
@@ -341,7 +345,7 @@ def _aggregate_admin_summary(items, user_map, org_map):
                 or str(usage_time) < str(bucket['first_usage_time'])
             ):
                 bucket['first_usage_time'] = usage_time
-    return sorted(buckets.values(), key=lambda x: x['amount'], reverse=True)
+    return sorted(buckets.values(), key=_usage_time_sort_key, reverse=True)
 
 
 def _aggregate_items(items, group_by=None):