105 lines
3 KiB
Python
105 lines
3 KiB
Python
from datetime import datetime
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from typing import Any, Callable, Dict, List, Optional
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from szurubooru import db, errors, model, rest
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from szurubooru.func import scores, serialization, users
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class InvalidCommentIdError(errors.ValidationError):
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pass
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class CommentNotFoundError(errors.NotFoundError):
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pass
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class EmptyCommentTextError(errors.ValidationError):
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pass
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class CommentSerializer(serialization.BaseSerializer):
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def __init__(self, comment: model.Comment, auth_user: model.User) -> None:
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self.comment = comment
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self.auth_user = auth_user
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def _serializers(self) -> Dict[str, Callable[[], Any]]:
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return {
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"id": self.serialize_id,
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"user": self.serialize_user,
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"postId": self.serialize_post_id,
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"version": self.serialize_version,
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"text": self.serialize_text,
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"creationTime": self.serialize_creation_time,
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"lastEditTime": self.serialize_last_edit_time,
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"score": self.serialize_score,
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"ownScore": self.serialize_own_score,
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}
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def serialize_id(self) -> Any:
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return self.comment.comment_id
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def serialize_user(self) -> Any:
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return users.serialize_micro_user(self.comment.user, self.auth_user)
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def serialize_post_id(self) -> Any:
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return self.comment.post.post_id
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def serialize_version(self) -> Any:
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return self.comment.version
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def serialize_text(self) -> Any:
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return self.comment.text
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def serialize_creation_time(self) -> Any:
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return self.comment.creation_time
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def serialize_last_edit_time(self) -> Any:
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return self.comment.last_edit_time
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def serialize_score(self) -> Any:
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return self.comment.score
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def serialize_own_score(self) -> Any:
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return scores.get_score(self.comment, self.auth_user)
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def serialize_comment(
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comment: model.Comment, auth_user: model.User, options: List[str] = []
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) -> rest.Response:
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if comment is None:
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return None
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return CommentSerializer(comment, auth_user).serialize(options)
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def try_get_comment_by_id(comment_id: int) -> Optional[model.Comment]:
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comment_id = int(comment_id)
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return (
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db.session.query(model.Comment)
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.filter(model.Comment.comment_id == comment_id)
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.one_or_none()
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)
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def get_comment_by_id(comment_id: int) -> model.Comment:
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comment = try_get_comment_by_id(comment_id)
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if comment:
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return comment
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raise CommentNotFoundError("Comment %r not found." % comment_id)
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def create_comment(
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user: model.User, post: model.Post, text: str
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) -> model.Comment:
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comment = model.Comment()
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comment.user = user
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comment.post = post
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update_comment_text(comment, text)
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comment.creation_time = datetime.utcnow()
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return comment
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def update_comment_text(comment: model.Comment, text: str) -> None:
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assert comment
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if not text:
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raise EmptyCommentTextError("Comment text cannot be empty.")
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comment.text = text
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