Optimize codes and comments with cursor (#550)

backend/app/admin/model/user.py

@@ -1,7 +1,9 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
+from __future__ import annotations
+
 from datetime import datetime
-from typing import Union
+from typing import TYPE_CHECKING
 
 from sqlalchemy import VARBINARY, Boolean, DateTime, ForeignKey, String
 from sqlalchemy.dialects.postgresql import BYTEA, INTEGER
@@ -12,6 +14,9 @@ from backend.common.model import Base, id_key
 from backend.database.db import uuid4_str
 from backend.utils.timezone import timezone
 
+if TYPE_CHECKING:
+    from backend.app.admin.model import Dept, Role, UserSocial
+
 
 class User(Base):
     """用户表"""
@@ -31,7 +36,7 @@ class User(Base):
     is_staff: Mapped[bool] = mapped_column(
         Boolean().with_variant(INTEGER, 'postgresql'), default=False, comment='后台管理登陆(0否 1是)'
     )
-    status: Mapped[int] = mapped_column(default=1, comment='用户账号状态(0停用 1正常)')
+    status: Mapped[int] = mapped_column(default=1, index=True, comment='用户账号状态(0停用 1正常)')
     is_multi_login: Mapped[bool] = mapped_column(
         Boolean().with_variant(INTEGER, 'postgresql'), default=False, comment='是否重复登陆(0否 1是)'
     )
@@ -48,10 +53,10 @@ class User(Base):
     dept_id: Mapped[int | None] = mapped_column(
         ForeignKey('sys_dept.id', ondelete='SET NULL'), default=None, comment='部门关联ID'
     )
-    dept: Mapped[Union['Dept', None]] = relationship(init=False, back_populates='users')  # noqa: F821
+    dept: Mapped[Dept | None] = relationship(init=False, back_populates='users')
 
     # 用户社交信息一对多
-    socials: Mapped[list['UserSocial']] = relationship(init=False, back_populates='user')  # noqa: F821
+    socials: Mapped[list[UserSocial]] = relationship(init=False, back_populates='user')
 
     # 用户角色多对多
-    roles: Mapped[list['Role']] = relationship(init=False, secondary=sys_user_role, back_populates='users')  # noqa: F821
+    roles: Mapped[list[Role]] = relationship(init=False, secondary=sys_user_role, back_populates='users')