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34 lines
779 B
Python
34 lines
779 B
Python
"""
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AIFlow 数据库连接与Session管理
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"""
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from sqlalchemy import create_engine, event
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from sqlalchemy.orm import sessionmaker, declarative_base
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from sqlalchemy.pool import QueuePool
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from .config import DATABASE_URL
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engine = create_engine(
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DATABASE_URL,
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poolclass=QueuePool,
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pool_size=20,
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max_overflow=40,
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pool_pre_ping=True,
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pool_recycle=3600,
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echo=False,
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)
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# 为日志表禁止DELETE操作添加触发器检查
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# 通过数据库层确保operation_logs, audit_logs, token_usage_logs不可删除
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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Base = declarative_base()
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def get_db():
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"""获取数据库会话的依赖注入"""
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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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