Sergey Vanyushkin
87b094220d
Complete architectural refactoring from simple MVC to Clean Architecture/DDD pattern: Domain Layer: - Add entities (Post, BaseEntity) with business logic - Add value objects (Title, Content, Slug) with validation - Add repository interfaces (PostRepository) - Add domain exceptions Application Layer: - Add use cases (CreatePost, GetPost, UpdatePost, DeletePost, ListPosts, PublishPost) - Add DTOs for data transfer - Add TransactionManager interface Infrastructure Layer: - Add SQLAlchemy models and async database connection - Add SQLAlchemyPostRepository implementation - Add Dishka DI container with providers - Add error handlers and middleware Presentation Layer: - Add FastAPI routes with Dishka integration - Add Pydantic schemas - Add dependency injection using FromDishka[T] Other Changes: - Remove old flat structure (api/, common/, core/, modules/) - Add hatchling build system for package scripts - Add blog CLI command - Update AGENTS.md with new architecture docs - All 48 tests passing, mypy clean, ruff clean
71 lines
1.7 KiB
Python
71 lines
1.7 KiB
Python
"""Database connection and session management."""
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from contextlib import asynccontextmanager
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from typing import AsyncGenerator
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from sqlalchemy.ext.asyncio import (
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AsyncEngine,
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AsyncSession,
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async_sessionmaker,
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create_async_engine,
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)
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from app.infrastructure.config import settings
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# Convert SQLite URL to async format if needed
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def _get_database_url() -> str:
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url = settings.database_url
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if url.startswith("sqlite:///") and not url.startswith("sqlite+aiosqlite:///"):
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return url.replace("sqlite:///", "sqlite+aiosqlite:///")
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return url
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# Create async engine
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engine: AsyncEngine = create_async_engine(
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_get_database_url(),
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echo=settings.database_echo,
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future=True,
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)
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# Create session factory
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AsyncSessionLocal = 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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autoflush=False,
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autocommit=False,
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)
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async def get_session() -> AsyncGenerator[AsyncSession, None]:
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"""Get database session."""
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async with AsyncSessionLocal() as session:
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try:
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yield session
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finally:
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await session.close()
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@asynccontextmanager
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async def get_session_context() -> AsyncGenerator[AsyncSession, None]:
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"""Get database session as context manager."""
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async with AsyncSessionLocal() as session:
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try:
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yield session
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finally:
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await session.close()
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async def init_db() -> None:
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"""Initialize database tables."""
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from app.infrastructure.database.models import Base
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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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async def close_db() -> None:
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"""Close database connections."""
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await engine.dispose()
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