fix：移除Oper类静态属性

app/db/__init__.py

@@ -236,7 +236,6 @@ class DbOper:
     """
     数据库操作基类
     """
-    _db: Session = None
 
     def __init__(self, db: Session = None):
         self._db = db

app/db/models/__init__.py

@@ -9,3 +9,4 @@ from .transferhistory import TransferHistory
 from .user import User
 from .userconfig import UserConfig
 from .workflow import Workflow
+from .userrequest import UserRequest

app/db/systemconfig_oper.py

@@ -8,14 +8,15 @@ from app.utils.singleton import Singleton
 
 
 class SystemConfigOper(DbOper, metaclass=Singleton):
-    # 配置对象
-    __SYSTEMCONF: dict = {}
-
+    """
+    系统配置管理
+    """
     def __init__(self):
         """
         加载配置到内存
         """
         super().__init__()
+        self.__SYSTEMCONF = {}
         for item in SystemConfig.list(self._db):
             self.__SYSTEMCONF[item.key] = item.value
 

app/db/userconfig_oper.py

@@ -7,14 +7,15 @@ from app.utils.singleton import Singleton
 
 
 class UserConfigOper(DbOper, metaclass=Singleton):
-    # 配置缓存
-    __USERCONF: Dict[str, Dict[str, Any]] = {}
-
+    """
+    用户配置管理
+    """
     def __init__(self):
         """
         加载配置到内存
         """
         super().__init__()
+        self.__USERCONF = {}
         for item in UserConfig.list(self._db):
             self.__set_config_cache(username=item.username, key=item.key, value=item.value)