35 lines
1.2 KiB
Python
35 lines
1.2 KiB
Python
"""Database configuration and session management."""
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import os
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from sqlalchemy.ext.asyncio import create_async_engine, async_sessionmaker, AsyncSession
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from sqlalchemy.orm import DeclarativeBase
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DATABASE_URL = os.getenv("DATABASE_URL", "sqlite+aiosqlite:///./xdl.db")
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engine = create_async_engine(DATABASE_URL, echo=False)
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async_session = async_sessionmaker(engine, class_=AsyncSession, expire_on_commit=False)
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class Base(DeclarativeBase):
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pass
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async def get_db():
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async with async_session() as session:
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yield session
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async def init_db():
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async with engine.begin() as conn:
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await conn.run_sync(Base.metadata.create_all)
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# Ensure indexes exist on already-created tables (idempotent)
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from sqlalchemy import text
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await conn.execute(text(
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"CREATE INDEX IF NOT EXISTS ix_video_url_format_id ON videos (url, format_id)"
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))
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await conn.execute(text(
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"CREATE INDEX IF NOT EXISTS ix_download_logs_video_id ON download_logs (video_id)"
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))
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await conn.execute(text(
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"CREATE INDEX IF NOT EXISTS ix_download_logs_downloaded_at ON download_logs (downloaded_at)"
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))
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