wehub-resource-sync
45 lines
1.1 KiB
Python
45 lines
1.1 KiB
Python
import os
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from sqlalchemy import create_engine
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from sqlalchemy.orm import sessionmaker, declarative_base
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from dotenv import load_dotenv
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load_dotenv()
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# 默认 SQLite，如果想换 PostgreSQL 或 MySQL，可以直接改 .env
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DATABASE_URL = os.getenv("DATABASE_URL", "sqlite:///bili_note.db")
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# SQLite 需要特定连接参数，其他数据库不需要
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engine_args = {}
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if DATABASE_URL.startswith("sqlite"):
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engine_args["connect_args"] = {"check_same_thread": False}
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_pool_args = {}
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if not DATABASE_URL.startswith("sqlite"):
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_pool_args = {
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"pool_size": int(os.getenv("DB_POOL_SIZE", "10")),
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"max_overflow": int(os.getenv("DB_MAX_OVERFLOW", "20")),
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"pool_pre_ping": True,
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}
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engine = create_engine(
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DATABASE_URL,
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echo=os.getenv("SQLALCHEMY_ECHO", "false").lower() == "true",
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**engine_args,
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**_pool_args,
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)
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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_engine():
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return 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() |