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Merge pull request #2884 from InfinityPacer/feature/db
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@@ -54,16 +54,18 @@ class ConfigModel(BaseModel):
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DEV: bool = False
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# 是否在控制台输出 SQL 语句,默认关闭
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DB_ECHO: bool = False
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# 是否在获取连接时进行预先 ping 操作,默认开启
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DB_POOL_PRE_PING: bool = True
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# 数据库连接池的大小,默认 100
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DB_POOL_SIZE: int = 100
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# 数据库连接的回收时间(秒),默认 3600 秒(1 小时)
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DB_POOL_RECYCLE: int = 3600
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# 数据库连接池获取连接的超时时间(秒),默认 180 秒
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DB_POOL_TIMEOUT: int = 180
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# 数据库连接池最大溢出连接数,默认 5
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DB_MAX_OVERFLOW: int = 5
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# 数据库连接池类型,QueuePool, NullPool
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DB_POOL_TYPE: str = "QueuePool"
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# 是否在获取连接时进行预先 ping 操作,默认关闭
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DB_POOL_PRE_PING: bool = False
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# 数据库连接池的大小,默认 20
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DB_POOL_SIZE: int = 20
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# 数据库连接的回收时间(秒),默认 1800 秒
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DB_POOL_RECYCLE: int = 1800
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# 数据库连接池获取连接的超时时间(秒),默认 30 秒
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DB_POOL_TIMEOUT: int = 30
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# 数据库连接池最大溢出连接数,默认 10
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DB_MAX_OVERFLOW: int = 10
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# SQLite 的 busy_timeout 参数,默认为 60 秒
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DB_TIMEOUT: int = 60
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# 配置文件目录
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@@ -1,24 +1,32 @@
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from typing import Any, Self, List, Tuple, Optional, Generator
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from typing import Any, Generator, List, Optional, Self, Tuple
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from sqlalchemy import create_engine, QueuePool, and_, inspect
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from sqlalchemy.orm import declared_attr, sessionmaker, Session, scoped_session, as_declarative
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from sqlalchemy import NullPool, QueuePool, and_, create_engine, inspect
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from sqlalchemy.orm import Session, as_declarative, declared_attr, scoped_session, sessionmaker
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from app.core.config import settings
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# 数据库引擎
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Engine = create_engine(
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url=f"sqlite:///{settings.CONFIG_PATH}/user.db",
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pool_pre_ping=settings.DB_POOL_PRE_PING,
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echo=settings.DB_ECHO,
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poolclass=QueuePool,
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pool_size=settings.DB_POOL_SIZE,
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pool_recycle=settings.DB_POOL_RECYCLE,
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pool_timeout=settings.DB_POOL_TIMEOUT,
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max_overflow=settings.DB_MAX_OVERFLOW,
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connect_args={
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# 根据池类型设置 poolclass 和相关参数
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pool_class = NullPool if settings.DB_POOL_TYPE == "NullPool" else QueuePool
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kwargs = {
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"url": f"sqlite:///{settings.CONFIG_PATH}/user.db",
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"pool_pre_ping": settings.DB_POOL_PRE_PING,
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"echo": settings.DB_ECHO,
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"poolclass": pool_class,
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"pool_recycle": settings.DB_POOL_RECYCLE,
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"connect_args": {
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# "check_same_thread": False,
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"timeout": settings.DB_TIMEOUT
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}
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)
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}
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# 当使用 QueuePool 时,添加 QueuePool 特有的参数
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if pool_class == QueuePool:
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kwargs.update({
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"pool_size": settings.DB_POOL_SIZE,
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"pool_timeout": settings.DB_POOL_TIMEOUT,
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"max_overflow": settings.DB_MAX_OVERFLOW
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})
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# 创建数据库引擎
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Engine = create_engine(**kwargs)
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# 会话工厂
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SessionFactory = sessionmaker(bind=Engine)
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@@ -9,10 +9,10 @@ DEBUG=false
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DEV=false
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# 日志级别(DEBUG、INFO、WARNING、ERROR等),当DEBUG=true时,此配置项将被忽略,日志级别始终为DEBUG
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LOG_LEVEL=INFO
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# 数据库连接池的大小,可适当降低如10-50以减少I/O压力
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DB_POOL_SIZE=100
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# 数据库连接池的大小,可适当降低如5以减少I/O压力
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DB_POOL_SIZE=20
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# 数据库连接池最大溢出连接数,可适当降低如0以减少I/O压力
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DB_MAX_OVERFLOW=5
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DB_MAX_OVERFLOW=10
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# SQLite 的 busy_timeout 参数,可适当增加如180以减少锁定错误
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DB_TIMEOUT=60
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# 【*】超级管理员,设置后一但重启将固化到数据库中,修改将无效(初始化超级管理员密码仅会生成一次,请在日志中查看并自行登录系统修改)
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