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
89 lines
2.4 KiB
Python
89 lines
2.4 KiB
Python
"""Domain entity for Blog Post."""
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from dataclasses import dataclass, field
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from typing import Any
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from app.domain.entities.base import BaseEntity
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from app.domain.value_objects.content import Content
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from app.domain.value_objects.slug import Slug
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from app.domain.value_objects.title import Title
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@dataclass(kw_only=True)
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class Post(BaseEntity):
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"""Blog post domain entity."""
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title: Title
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content: Content
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slug: Slug
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author_id: str
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published: bool = False
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tags: list[str] = field(default_factory=list)
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def publish(self) -> None:
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"""Publish the post."""
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self.published = True
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self.touch()
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def unpublish(self) -> None:
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"""Unpublish the post."""
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self.published = False
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self.touch()
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def update_content(self, content: Content) -> None:
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"""Update post content."""
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self.content = content
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self.touch()
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def update_title(self, title: Title) -> None:
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"""Update post title and regenerate slug."""
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self.title = title
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self.slug = Slug.from_title(title.value)
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self.touch()
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def add_tag(self, tag: str) -> None:
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"""Add a tag to the post."""
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if tag not in self.tags:
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self.tags.append(tag)
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self.touch()
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def remove_tag(self, tag: str) -> None:
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"""Remove a tag from the post."""
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if tag in self.tags:
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self.tags.remove(tag)
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self.touch()
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def to_dict(self) -> dict[str, Any]:
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"""Convert entity to dictionary."""
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return {
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"id": str(self.id),
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"title": self.title.value,
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"content": self.content.value,
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"slug": self.slug.value,
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"author_id": self.author_id,
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"published": self.published,
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"tags": self.tags.copy(),
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"created_at": self.created_at.isoformat(),
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"updated_at": self.updated_at.isoformat(),
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}
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@classmethod
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def create(
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cls,
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title_str: str,
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content_str: str,
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author_id: str,
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tags: list[str] | None = None,
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) -> "Post":
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"""Factory method to create a new post."""
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title = Title(title_str)
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content = Content(content_str)
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slug = Slug.from_title(title_str)
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return cls(
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title=title,
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content=content,
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slug=slug,
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author_id=author_id,
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tags=tags or [],
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)
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