QChatGPT/pkg/persistence/database.py

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from __future__ import annotations
import abc
import sqlalchemy.ext.asyncio as sqlalchemy_asyncio
from ..core import app
preregistered_managers: list[type[BaseDatabaseManager]] = []
def manager_class(name: str) -> None:
"""注册一个数据库管理类"""
def decorator(cls: type[BaseDatabaseManager]) -> type[BaseDatabaseManager]:
cls.name = name
preregistered_managers.append(cls)
return cls
return decorator
class BaseDatabaseManager(abc.ABC):
"""基础数据库管理类"""
name: str
ap: app.Application
engine: sqlalchemy_asyncio.AsyncEngine
def __init__(self, ap: app.Application) -> None:
self.ap = ap
@abc.abstractmethod
async def initialize(self) -> None:
pass
def get_engine(self) -> sqlalchemy_asyncio.AsyncEngine:
return self.engine