优化获取axshare时间的逻辑

product/views.py

@@ -60,7 +60,7 @@ class PrdItemViewSet(viewsets.ModelViewSet):
             print(db)
             db_conn = pymysql.Connect(**db)
             db_cursor = db_conn.cursor(cursor=DictCursor)
-            sql = "select Shortcut, ModifiedOn from axshare.axshare_ShortcutKey;"
+            sql = "select Shortcut, CreatedOn, ModifiedOn from axshare.axshare_ShortcutKey;"
             db_cursor.execute(sql)
             ax_cloud_data = db_cursor.fetchall()
             db_conn.close()
@@ -69,12 +69,13 @@ class PrdItemViewSet(viewsets.ModelViewSet):
                 shortcut_key = data.prd_doc_link.split(r'/')[-1]
                 for item in ax_cloud_data:
                     if item['Shortcut'].lower() == shortcut_key.lower():
-                        data.update_at = item['ModifiedOn']
+                        data.update_at = item['ModifiedOn'] if item['ModifiedOn'] is not None else item['CreatedOn']
             page = self.paginate_queryset(queryset)
             serializer = self.get_serializer(page, many=True)
             return self.get_paginated_response(serializer.data)
         return Response(None)
 
+
 class PrdHistoryViewSet(viewsets.ModelViewSet):
     # 字段注释
     """