45 lines
1.1 KiB
Python
45 lines
1.1 KiB
Python
from typing import Generator
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from sqlalchemy import create_engine
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from sqlalchemy.orm import DeclarativeBase, Session, sessionmaker
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from app.config import get_settings
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engine = None
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SessionLocal = sessionmaker(autocommit=False, autoflush=False)
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class Base(DeclarativeBase):
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pass
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def _build_engine(database_url: str):
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connect_args = {"check_same_thread": False} if database_url.startswith("sqlite") else {}
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return create_engine(database_url, connect_args=connect_args)
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def configure_database(database_url: str | None = None) -> None:
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global engine
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settings = get_settings()
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resolved_database_url = database_url or settings.database_url
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engine = _build_engine(resolved_database_url)
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SessionLocal.configure(bind=engine)
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def get_db() -> Generator[Session, None, None]:
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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(database_url: str | None = None) -> None:
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from app import models
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if engine is None or database_url is not None:
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configure_database(database_url)
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Base.metadata.create_all(bind=engine)
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