lt
29 lines
931 B
Python
29 lines
931 B
Python
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
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import os
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from pathlib import Path
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# 计算项目根目录（backend/app/database.py -> yu-zhi-ran）
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# __file__: platform/backend/app/database.py
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# parents[0]=app, [1]=backend, [2]=platform, [3]=yu-zhi-ran
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PROJECT_ROOT = Path(__file__).resolve().parents[3]
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DATA_DIR = os.getenv('DATA_DIR', str(PROJECT_ROOT / 'data'))
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os.makedirs(DATA_DIR, exist_ok=True)
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DB_PATH = os.path.join(DATA_DIR, 'yzr.db')
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SQLALCHEMY_DATABASE_URL = f"sqlite:///{DB_PATH}"
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engine = create_engine(SQLALCHEMY_DATABASE_URL, connect_args={"check_same_thread": False})
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SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)
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Base = declarative_base()
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def init_db():
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Base.metadata.create_all(bind=engine)
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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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