31 lines
659 B
Python
31 lines
659 B
Python
from __future__ import annotations
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from sqlalchemy import create_engine
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from sqlalchemy.orm import DeclarativeBase, sessionmaker
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from .config import DATABASE_URL
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_is_sqlite = DATABASE_URL.startswith("sqlite")
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connect_args = {"check_same_thread": False} if _is_sqlite else {}
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engine = create_engine(
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DATABASE_URL,
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connect_args=connect_args,
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pool_pre_ping=not _is_sqlite,
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future=True,
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)
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SessionLocal = sessionmaker(bind=engine, autoflush=False, autocommit=False, future=True)
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class Base(DeclarativeBase):
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"""所有模型的基类。"""
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def get_db():
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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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