mirror of
https://github.com/flibusta-apps/book_library_server.git
synced 2025-12-06 15:15:36 +01:00
113 lines
3.0 KiB
Python
113 lines
3.0 KiB
Python
from typing import Union
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from fastapi import HTTPException, status
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from app.models import Author as AuthorDB
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from app.models import Book as BookDB
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from app.serializers.book import CreateBook, CreateRemoteBook
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from app.services.common import (
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TRGMSearchService,
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MeiliSearchService,
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GetRandomService,
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BaseFilterService,
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)
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GET_OBJECT_IDS_QUERY = """
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SELECT ARRAY(
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WITH filtered_books AS (
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SELECT id, similarity(title, :query) as sml FROM books
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WHERE books.title % :query AND books.is_deleted = 'f'
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AND books.lang = ANY(:langs ::text[])
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)
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SELECT fbooks.id FROM filtered_books as fbooks
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ORDER BY fbooks.sml DESC, fbooks.id
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LIMIT 210
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);
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"""
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class BookTGRMSearchService(TRGMSearchService):
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MODEL_CLASS = BookDB
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PREFETCH_RELATED = ["source"]
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SELECT_RELATED = ["authors", "translators", "annotations"]
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GET_OBJECT_IDS_QUERY = GET_OBJECT_IDS_QUERY
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class BookFilterService(BaseFilterService):
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MODEL_CLASS = BookDB
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PREFETCH_RELATED = ["source"]
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SELECT_RELATED = ["authors", "translators", "annotations"]
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class BookCreator:
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@classmethod
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def _raise_bad_request(cls):
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raise HTTPException(status.HTTP_404_NOT_FOUND)
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@classmethod
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async def _create_book(cls, data: CreateBook) -> BookDB:
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data_dict = data.dict()
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author_ids = data_dict.pop("authors", [])
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authors = await AuthorDB.objects.filter(id__in=author_ids).all()
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if len(author_ids) != len(authors):
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cls._raise_bad_request()
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book = await BookDB.objects.create(**data_dict)
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for author in authors:
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await book.authors.add(author)
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return book
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@classmethod
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async def _create_remote_book(cls, data: CreateRemoteBook) -> BookDB:
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data_dict = data.dict()
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author_ids = data_dict.pop("remote_authors", [])
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authors = await AuthorDB.objects.filter(
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source__id=data.source, remote_id__in=author_ids
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).all()
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if len(author_ids) != len(authors):
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cls._raise_bad_request()
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book = await BookDB.objects.create(**data_dict)
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for author in authors:
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await book.authors.add(author)
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return book
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@classmethod
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async def create(cls, data: Union[CreateBook, CreateRemoteBook]) -> BookDB:
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if isinstance(data, CreateBook):
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return await cls._create_book(data)
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if isinstance(data, CreateRemoteBook):
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return await cls._create_remote_book(data)
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GET_OBJECTS_ID_QUERY = """
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WITH filtered_books AS (
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SELECT id FROM books
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WHERE books.is_deleted = 'f' AND books.lang = ANY(:langs ::text[])
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)
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SELECT id FROM filtered_books;
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"""
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class GetRandomBookService(GetRandomService):
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MODEL_CLASS = BookDB
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GET_OBJECT_ID_QUERY = GET_OBJECT_IDS_QUERY
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class BookMeiliSearchService(MeiliSearchService):
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MODEL_CLASS = BookDB
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PREFETCH_RELATED = ["source"]
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SELECT_RELATED = ["authors", "translators", "annotations"]
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MS_INDEX_NAME = "books"
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MS_INDEX_LANG_KEY = "lang"
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