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video-gen-api/app/models/base.py

@@ -0,0 +1,32 @@
+from datetime import datetime
+
+from sqlalchemy import DateTime, func
+from sqlalchemy.ext.asyncio import AsyncAttrs, async_sessionmaker, create_async_engine
+from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column
+
+from app.config import settings
+
+engine = create_async_engine(settings.DATABASE_URL, echo=settings.DEBUG)
+async_session = async_sessionmaker(engine, expire_on_commit=False)
+
+
+class Base(AsyncAttrs, DeclarativeBase):
+    pass
+
+
+class TimestampMixin:
+    created_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), server_default=func.now()
+    )
+    updated_at: Mapped[datetime] = mapped_column(
+        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
+    )
+
+
+async def init_database() -> None:
+    async with engine.begin() as conn:
+        await conn.run_sync(Base.metadata.create_all)
+
+
+async def close_database() -> None:
+    await engine.dispose()