Fix database engine UUID type compatibility (#241)

backend/app/database/db_mysql.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 import sys
+from uuid import uuid4
 
 from fastapi import Depends
 from sqlalchemy import URL
@@ -53,3 +54,8 @@ async def create_table():
     """创建数据库表"""
     async with async_engine.begin() as coon:
         await coon.run_sync(MappedBase.metadata.create_all)
+
+
+def uuid4_str() -> str:
+    """数据库引擎 UUID 类型兼容性解决方案"""
+    return str(uuid4())

backend/app/models/sys_user.py

@@ -2,11 +2,11 @@
 # -*- coding: utf-8 -*-
 from datetime import datetime
 from typing import Union
-from uuid import uuid4
 
 from sqlalchemy import String, ForeignKey
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 
+from backend.app.database.db_mysql import uuid4_str
 from backend.app.models.base import id_key, Base
 from backend.app.models.sys_user_role import sys_user_role
 from backend.app.utils.timezone import timezone
@@ -18,7 +18,7 @@ class User(Base):
     __tablename__ = 'sys_user'
 
     id: Mapped[id_key] = mapped_column(init=False)
-    uuid: Mapped[str] = mapped_column(String(50), init=False, default_factory=uuid4, unique=True)
+    uuid: Mapped[str] = mapped_column(String(50), init=False, default_factory=uuid4_str, unique=True)
     username: Mapped[str] = mapped_column(String(20), unique=True, index=True, comment='用户名')
     nickname: Mapped[str] = mapped_column(String(20), unique=True, comment='昵称')
     password: Mapped[str] = mapped_column(String(255), comment='密码')