47 lines
1.2 KiB
Python
47 lines
1.2 KiB
Python
"""Database configuration and session management."""
|
|
|
|
from collections.abc import AsyncGenerator
|
|
|
|
from sqlalchemy.ext.asyncio import AsyncSession, async_sessionmaker, create_async_engine
|
|
from sqlalchemy.orm import DeclarativeBase
|
|
|
|
from app.config import get_settings
|
|
|
|
settings = get_settings()
|
|
|
|
# Convert postgresql:// to postgresql+asyncpg:// for async
|
|
database_url = settings.database_url
|
|
if database_url.startswith("postgresql://"):
|
|
database_url = database_url.replace("postgresql://", "postgresql+asyncpg://", 1)
|
|
|
|
engine = create_async_engine(
|
|
database_url,
|
|
echo=settings.debug,
|
|
pool_pre_ping=True,
|
|
)
|
|
|
|
AsyncSessionLocal = async_sessionmaker(
|
|
engine,
|
|
class_=AsyncSession,
|
|
expire_on_commit=False,
|
|
)
|
|
|
|
|
|
class Base(DeclarativeBase):
|
|
"""Base class for SQLAlchemy models."""
|
|
|
|
pass
|
|
|
|
|
|
async def get_db() -> AsyncGenerator[AsyncSession, None]:
|
|
"""Dependency for getting database session."""
|
|
async with AsyncSessionLocal() as session:
|
|
try:
|
|
yield session
|
|
await session.commit()
|
|
except Exception:
|
|
await session.rollback()
|
|
raise
|
|
finally:
|
|
await session.close()
|