Files
FastapiAdmin/backend/app/core/database.py
T
zhangtao f4b55334e2 feat: 添加IP归属地工具类并优化代码
refactor: 简化AuthPermission调用方式
style: 更新日志输出格式和内容
fix: 修复BaseSchema字段可选性
perf: 优化数据库连接日志显示
chore: 更新requirements.txt添加sqlglot依赖
docs: 更新配置注释说明
2025-10-04 18:55:29 +08:00

116 lines
4.1 KiB
Python

# -*- coding: utf-8 -*-
from redis.asyncio import Redis
from redis import exceptions
from motor.motor_asyncio import AsyncIOMotorClient
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
from app.core.base_model import MappedBase
# 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, # sqlite 不支持
# max_overflow=settings.MAX_OVERFLOW, # sqlite 不支持
# pool_timeout=settings.POOL_TIMEOUT, # sqlite 不支持
)
# 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:
"""获取数据库会话"""
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"""
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')
async def mongodb_connect(app: FastAPI, status: bool) -> AsyncIOMotorClient | None:
"""创建或关闭MongoDB连接"""
if not settings.MONGO_DB_ENABLE:
raise CustomException(msg="请先开启MongoDB连接", data="请启用 app/core/config.py: MONGO_DB_ENABLE")
if status:
try:
client = AsyncIOMotorClient(
settings.MONGO_DB_URI,
maxPoolSize=settings.POOL_SIZE,
minPoolSize=settings.MAX_OVERFLOW,
serverSelectionTimeoutMS=settings.POOL_TIMEOUT * 1000
)
app.state.mongo_client = client
app.state.mongo = client[settings.MONGO_DB_NAME]
data = await client.server_info()
logger.info("MongoDB连接成功...", data)
return client
except Exception as e:
raise ValueError(f"MongoDB连接失败: {e}")
else:
app.state.mongo_client.close()
logger.info("❌️ MongoDB连接已关闭")