Sergey Vanyushkin
3cf6c94da2
- PostLike domain entity (post_id, liked_by) with BaseEntity integration
- Post entity: add like_count field (default 0) and to_dict serialization
- PostRepository interface: add get_like, add_like, remove_like methods
- TogglePostLikeUseCase: toggle logic (like → unlike, unlike → like)
- PostResponseDTO/PostResponseSchema: add like_count field
- PostLikeORM model with FK to posts and cascade delete
- SQLAlchemyPostRepository: implement like query/add/remove with ORM mapping
- DI provider registration for TogglePostLikeUseCase
- API endpoint POST /api/v1/posts/{id}/like (auth required)
- Unit tests: PostLike entity, Post.like_count, TogglePostLikeUseCase (7 tests)
- API tests: POST /api/v1/posts/{id}/like (4 tests)
- Test model files: FEATURE_LIKES.md, TEST_MODEL.md updated
104 lines
2.5 KiB
Python
104 lines
2.5 KiB
Python
"""DTOs for post use cases.
|
|
|
|
This module defines Data Transfer Objects used for communication between
|
|
application layer use cases and presentation layer. DTOs are immutable
|
|
dataclasses that carry data across process boundaries.
|
|
"""
|
|
|
|
from dataclasses import dataclass
|
|
from datetime import datetime
|
|
from uuid import UUID
|
|
|
|
|
|
@dataclass(frozen=True)
|
|
class CreatePostDTO:
|
|
"""DTO for creating a post.
|
|
|
|
Carries post creation data from API to use case.
|
|
Contains all required fields for post creation.
|
|
|
|
Attributes:
|
|
title: Post title string.
|
|
content: Post content string.
|
|
author_id: Identifier of the post author.
|
|
tags: Optional list of tags for categorization.
|
|
|
|
Example:
|
|
>>> dto = CreatePostDTO(
|
|
... title="My Post",
|
|
... content="Content here...",
|
|
... author_id="user-123",
|
|
... tags=["python"]
|
|
... )
|
|
"""
|
|
|
|
title: str
|
|
content: str
|
|
author_id: str
|
|
tags: list[str] | None = None
|
|
|
|
|
|
@dataclass(frozen=True)
|
|
class UpdatePostDTO:
|
|
"""DTO for updating a post.
|
|
|
|
Carries optional post update data. All fields are optional
|
|
allowing partial updates.
|
|
|
|
Attributes:
|
|
title: Optional new title.
|
|
content: Optional new content.
|
|
tags: Optional new tags list.
|
|
|
|
Example:
|
|
>>> dto = UpdatePostDTO(title="Updated Title")
|
|
"""
|
|
|
|
title: str | None = None
|
|
content: str | None = None
|
|
tags: list[str] | None = None
|
|
|
|
|
|
@dataclass(frozen=True)
|
|
class PostResponseDTO:
|
|
"""DTO for post response.
|
|
|
|
Carries complete post data for API responses.
|
|
Includes all post attributes and metadata.
|
|
|
|
Attributes:
|
|
id: Unique post identifier.
|
|
title: Post title.
|
|
content: Post content.
|
|
slug: URL-friendly slug.
|
|
author_id: Author identifier.
|
|
published: Publication status.
|
|
tags: List of tags.
|
|
created_at: Creation timestamp.
|
|
updated_at: Last update timestamp.
|
|
|
|
Example:
|
|
>>> dto = PostResponseDTO(
|
|
... id=uuid,
|
|
... title="Post",
|
|
... content="...",
|
|
... slug="post",
|
|
... author_id="user-123",
|
|
... published=True,
|
|
... tags=[],
|
|
... created_at=datetime.now(),
|
|
... updated_at=datetime.now()
|
|
... )
|
|
"""
|
|
|
|
id: UUID
|
|
title: str
|
|
content: str
|
|
slug: str
|
|
author_id: str
|
|
published: bool
|
|
tags: list[str]
|
|
created_at: datetime
|
|
updated_at: datetime
|
|
like_count: int = 0
|