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
34 lines
991 B
Python
34 lines
991 B
Python
"""Base entity for DDD domain layer."""
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from abc import ABC, abstractmethod
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from dataclasses import dataclass, field
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from datetime import datetime, timezone
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from typing import Any
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from uuid import UUID, uuid4
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@dataclass(kw_only=True)
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class BaseEntity(ABC):
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"""Base class for all domain entities."""
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id: UUID = field(default_factory=uuid4)
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created_at: datetime = field(default_factory=lambda: datetime.now(timezone.utc))
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updated_at: datetime = field(default_factory=lambda: datetime.now(timezone.utc))
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def __eq__(self, other: object) -> bool:
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if not isinstance(other, BaseEntity):
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return NotImplemented
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return self.id == other.id
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def __hash__(self) -> int:
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return hash(self.id)
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def touch(self) -> None:
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"""Update the updated_at timestamp."""
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self.updated_at = datetime.now(timezone.utc)
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@abstractmethod
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def to_dict(self) -> dict[str, Any]:
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"""Convert entity to dictionary."""
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...
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