Sergey Vanyushkin
7ff3fa0992
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Implement full comments system: domain entities (Comment, CommentLike), value objects (CommentContent), use cases (CRUD, like toggle), SQLAlchemy repository, API v1 endpoints, web UI with comment form and nested replies, i18n translations (EN/RU/FR/DE), and E2E tests. Fix nested reply (reply-to-reply) not displaying — the flat reply_comments dict was only queried for top-level comment IDs, so deeply nested replies were saved to DB (incrementing comment count) but never rendered. Switch to a recursive Jinja2 macro that renders any nesting depth.
64 lines
1.8 KiB
Python
64 lines
1.8 KiB
Python
"""List comments use case.
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This module implements the use case for listing comments on a blog post.
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"""
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from uuid import UUID
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from app.application.dtos.comment import CommentResponseDTO
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from app.domain.entities.comment import Comment
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from app.domain.repositories import CommentRepository
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class ListCommentsUseCase:
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"""Use case for listing comments on a blog post.
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Retrieves all comments for a given post ordered by creation time.
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Attributes:
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_comment_repo: Repository for comment data access.
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"""
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def __init__(
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self,
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comment_repo: CommentRepository,
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) -> None:
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"""Initialize use case with dependencies.
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Args:
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comment_repo: Repository for comment operations.
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"""
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self._comment_repo = comment_repo
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async def execute(self, post_id: UUID) -> list[CommentResponseDTO]:
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"""List all comments for a post.
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Args:
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post_id: UUID of the post.
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Returns:
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List of CommentResponseDTO for the post.
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"""
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comments = await self._comment_repo.get_by_post(post_id)
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return [self._map_to_dto(c) for c in comments]
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def _map_to_dto(self, comment: Comment) -> CommentResponseDTO:
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"""Map domain entity to response DTO.
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Args:
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comment: Domain Comment entity.
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Returns:
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CommentResponseDTO with all comment attributes.
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"""
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return CommentResponseDTO(
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id=comment.id,
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post_id=comment.post_id,
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author_id=comment.author_id,
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content=comment.content.value,
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parent_id=comment.parent_id,
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like_count=comment.like_count,
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created_at=comment.created_at,
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updated_at=comment.updated_at,
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)
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