76 lines
1.9 KiB
Python
76 lines
1.9 KiB
Python
"""
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Database engine and session management.
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Provides async SQLAlchemy engine and session factory for dependency injection.
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Supports dual database connections for mtgonline app and mtgjson data.
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"""
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from sqlalchemy.ext.asyncio import create_async_engine, AsyncSession, async_sessionmaker
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from sqlalchemy.orm import DeclarativeBase
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from app.core.settings import get_settings
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settings = get_settings()
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# Primary database engine (mtgonline app)
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engine = create_async_engine(
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settings.DATABASE_URL,
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echo=settings.DEBUG,
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pool_pre_ping=True,
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pool_size=20,
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max_overflow=10,
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)
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async_session = async_sessionmaker(
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engine,
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class_=AsyncSession,
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expire_on_commit=False,
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)
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# Secondary database engine (mtgjson data)
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mtg_engine = create_async_engine(
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settings.MTG_DATABASE_URL,
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echo=settings.DEBUG,
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pool_pre_ping=True,
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pool_size=10,
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max_overflow=5,
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)
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mtg_async_session = async_sessionmaker(
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mtg_engine,
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class_=AsyncSession,
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expire_on_commit=False,
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)
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class Base(DeclarativeBase):
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"""Base class for all ORM models."""
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pass
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__all__ = ["Base", "get_db", "async_session", "engine", "mtg_get_db", "mtg_async_session", "mtg_engine"]
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async def get_db() -> AsyncSession:
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"""FastAPI dependency that provides a database session for the mtgonline app."""
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async with async_session() as session:
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try:
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yield session
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await session.commit()
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except Exception:
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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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async def mtg_get_db() -> AsyncSession:
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"""FastAPI dependency that provides a database session for mtgjson data."""
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async with mtg_async_session() as session:
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try:
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yield session
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await session.commit()
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except Exception:
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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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