37 lines
875 B
Python
37 lines
875 B
Python
"""数据库连接模块"""
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from sqlalchemy import create_engine
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from sqlalchemy.ext.declarative import declarative_base
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from sqlalchemy.orm import sessionmaker, Session
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from typing import Generator
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from alcor.config import config
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# 创建数据库引擎
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engine = create_engine(
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config.database_url,
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connect_args={"check_same_thread": False} if "sqlite" in config.database_url else {},
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pool_pre_ping=True,
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echo=config.debug
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)
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# 创建会话工厂
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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# 创建基类
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Base = declarative_base()
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def get_db() -> Generator[Session, None, None]:
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"""获取数据库会话的依赖项"""
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db = SessionLocal()
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try:
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yield db
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finally:
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db.close()
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def init_db() -> None:
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"""初始化数据库，创建所有表"""
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Base.metadata.create_all(bind=engine)
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