64 lines
1.8 KiB
Python
64 lines
1.8 KiB
Python
import asyncio
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from collections.abc import AsyncGenerator, Callable
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from alembic.config import Config
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from sqlalchemy.ext.asyncio import AsyncEngine, create_async_engine
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from sqlmodel.ext.asyncio.session import AsyncSession
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# Import all models to ensure SQLModel metadata discovery
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import app.models # noqa: F401
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from alembic import command
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from app.core.config import settings
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from app.core.logging import get_logger
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engine: AsyncEngine = create_async_engine(
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settings.DATABASE_URL,
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echo=settings.DATABASE_ECHO,
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)
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async def get_db() -> AsyncGenerator[AsyncSession]:
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"""Get a database session for dependency injection."""
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logger = get_logger(__name__)
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async with AsyncSession(engine) as session:
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try:
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yield session
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except Exception:
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logger.exception("Database session error")
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await session.rollback()
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raise
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finally:
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await session.close()
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def get_session_factory() -> Callable[[], AsyncSession]:
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"""Get a session factory function for services."""
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def session_factory() -> AsyncSession:
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return AsyncSession(engine)
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return session_factory
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async def init_db() -> None:
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"""Initialize the database using Alembic migrations."""
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logger = get_logger(__name__)
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try:
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logger.info("Running database migrations")
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# Run Alembic migrations programmatically
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# Get the alembic config
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alembic_cfg = Config("alembic.ini")
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# Run migrations to the latest revision in a thread pool to avoid blocking
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await asyncio.get_event_loop().run_in_executor(
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None, command.upgrade, alembic_cfg, "head",
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)
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logger.info("Database migrations completed successfully")
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except Exception:
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logger.exception("Failed to initialize database")
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raise
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