mirror of
https://github.com/fastapiadmin/FastapiAdmin.git
synced 2026-09-21 04:46:26 +00:00
106 lines
3.3 KiB
Python
106 lines
3.3 KiB
Python
# -*- coding: utf-8 -*-
|
|
|
|
from redis.asyncio import Redis
|
|
from redis import exceptions
|
|
from fastapi import FastAPI
|
|
from sqlalchemy import create_engine, Engine
|
|
from sqlalchemy.orm import sessionmaker
|
|
from sqlalchemy.ext.asyncio import (
|
|
create_async_engine,
|
|
async_sessionmaker,
|
|
AsyncSession,
|
|
AsyncEngine
|
|
)
|
|
|
|
from app.core.logger import logger
|
|
from app.config.setting import settings
|
|
from app.core.exceptions import CustomException
|
|
|
|
|
|
# 同步数据库引擎
|
|
engine: Engine = create_engine(
|
|
url=settings.DB_URI,
|
|
echo=settings.DATABASE_ECHO,
|
|
pool_pre_ping=settings.POOL_PRE_PING,
|
|
pool_recycle=settings.POOL_RECYCLE,
|
|
)
|
|
|
|
# 同步数据库会话工厂
|
|
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
|
|
|
|
# 异步数据库引擎
|
|
async_engine: AsyncEngine = create_async_engine(
|
|
url=settings.ASYNC_DB_URI,
|
|
echo=settings.DATABASE_ECHO,
|
|
echo_pool=settings.ECHO_POOL,
|
|
pool_pre_ping=settings.POOL_PRE_PING,
|
|
future=settings.FUTURE,
|
|
pool_recycle=settings.POOL_RECYCLE,
|
|
pool_size=settings.POOL_SIZE,
|
|
max_overflow=settings.MAX_OVERFLOW,
|
|
pool_timeout=settings.POOL_TIMEOUT,
|
|
pool_use_lifo=settings.POOL_USE_LIFO,
|
|
)
|
|
|
|
# 异步数据库会话工厂
|
|
AsyncSessionLocal = async_sessionmaker(
|
|
bind=async_engine,
|
|
autocommit=settings.AUTOCOMMIT,
|
|
autoflush=settings.AUTOFETCH,
|
|
expire_on_commit=settings.EXPIRE_ON_COMMIT,
|
|
class_=AsyncSession
|
|
)
|
|
|
|
def session_connect() -> AsyncSession:
|
|
"""
|
|
获取异步数据库会话连接。
|
|
|
|
返回:
|
|
- AsyncSession: 异步数据库会话连接。
|
|
"""
|
|
try:
|
|
if not settings.SQL_DB_ENABLE:
|
|
raise CustomException(msg="请先开启数据库连接", data="请启用 app/config/setting.py: SQL_DB_ENABLE")
|
|
return AsyncSessionLocal()
|
|
except Exception as e:
|
|
raise CustomException(msg=f"数据库连接失败: {e}")
|
|
|
|
async def redis_connect(app: FastAPI, status: bool) -> Redis | None:
|
|
"""
|
|
创建或关闭Redis连接。
|
|
|
|
参数:
|
|
- app (FastAPI): FastAPI应用实例。
|
|
- status (bool): 连接状态,True为创建连接,False为关闭连接。
|
|
|
|
返回:
|
|
- Redis | None: Redis连接实例,如果连接失败则返回None。
|
|
"""
|
|
if not settings.REDIS_ENABLE:
|
|
raise CustomException(msg="请先开启Redis连接", data="请启用 app/core/config.py: REDIS_ENABLE")
|
|
|
|
if status:
|
|
try:
|
|
rd = await Redis.from_url(
|
|
url=settings.REDIS_URI,
|
|
encoding='utf-8',
|
|
decode_responses=True,
|
|
health_check_interval=20,
|
|
max_connections=settings.POOL_SIZE,
|
|
socket_timeout=settings.POOL_TIMEOUT
|
|
)
|
|
app.state.redis = rd
|
|
if await rd.ping():
|
|
logger.info("✅️ Redis连接成功...")
|
|
return rd
|
|
raise CustomException(msg="Redis连接失败")
|
|
except exceptions.AuthenticationError as e:
|
|
raise exceptions.AuthenticationError(f"Redis认证失败: {e}")
|
|
except exceptions.TimeoutError as e:
|
|
raise exceptions.TimeoutError(f"Redis连接超时: {e}")
|
|
except exceptions.RedisError as e:
|
|
raise exceptions.RedisError(f"Redis连接错误: {e}")
|
|
else:
|
|
await app.state.redis.close()
|
|
logger.info('✅️ Redis连接已关闭')
|