Унификация использования конфигурации подключения к СУБД

App/Waybill/model.py

@@ -1,5 +1,5 @@
 from Database.sql_provider import SQLProvider
-from Database.work import select_list, transaction
+from Database.work import select_list
 from Database.DBconnect import DBContextManager
 
 from flask import current_app, session
@@ -41,6 +41,8 @@ def index_waybill() -> list:
     cache_select = fetch_from_cache('items_cached', cache_config)(select_list)
     _sql = sql_provider.get('goods.sql', {})
     products = cache_select(db_config, _sql)
+    if products == None:
+        return []
  
     return products