mirror of
https://github.com/bookwyrm-social/bookwyrm.git
synced 2024-12-01 22:11:16 +00:00
163 lines
5 KiB
Python
163 lines
5 KiB
Python
''' using another fedireads instance as a source of book data '''
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import requests
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from django.core.exceptions import ObjectDoesNotExist
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from django.core.files.base import ContentFile
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from django.db import transaction
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from fedireads import models
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from .abstract_connector import AbstractConnector, SearchResult, get_date
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from .abstract_connector import match_from_mappings, update_from_mappings
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class Connector(AbstractConnector):
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''' interact with other instances '''
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def __init__(self, identifier):
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self.key_mappings = {
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'isbn_13': ('isbn_13', None),
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'isbn_10': ('isbn_10', None),
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'oclc_numbers': ('oclc_number', None),
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'lccn': ('lccn', None),
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}
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super().__init__(identifier)
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def format_search_result(self, search_result):
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return SearchResult(**search_result)
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def get_or_create_book(self, remote_id):
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''' pull up a book record by whatever means possible '''
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book = models.Book.objects.select_subclasses().filter(
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remote_id=remote_id
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).first()
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if book:
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if isinstance(book, models.Work):
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return book.default_edition
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return book
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# no book was found, so we start creating a new one
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response = requests.get(
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remote_id,
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headers={
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'Accept': 'application/activity+json; charset=utf-8',
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},
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)
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if not response.ok:
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response.raise_for_status()
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data = response.json()
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if data['book_type'] == 'work':
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work_data = data
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try:
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edition_data = data['editions'][0]
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except KeyError:
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# hack: re-use the work data as the edition data
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edition_data = data
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else:
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edition_data = data
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try:
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work_data = data['work']
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except KeyError:
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# hack: re-use the work data as the edition data
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work_data = data
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with transaction.atomic():
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# create both work and a default edition
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work_key = edition_data.get('url')
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work = self.create_book(work_key, work_data, models.Work)
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ed_key = edition_data.get('url')
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edition = self.create_book(ed_key, edition_data, models.Edition)
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edition.default = True
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edition.parent_work = work
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edition.save()
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print(work, edition)
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return edition
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def update_book(self, book, data=None):
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''' add remote data to a local book '''
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if not data:
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response = requests.get(
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book.remote_id,
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headers={
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'Accept': 'application/activity+json; charset=utf-8',
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},
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)
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if not response.ok:
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response.raise_for_status()
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data = response.json()
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match = match_from_mappings(data, {})
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if match:
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return match
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# great, we can update our book.
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mappings = {
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'published_date': ('published_date', get_date),
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'first_published_date': ('first_published_date', get_date),
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}
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book = update_from_mappings(book, data, mappings)
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if not book.remote_id:
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book.remote_id = response.url
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if not book.connector:
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book.connector = self.connector
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book.save()
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if data.get('parent_work'):
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work = self.get_or_create_book(data.get('parent_work'))
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book.parent_work = work
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for author_blob in data.get('authors', []):
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author_blob = author_blob.get('author', author_blob)
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author_id = author_blob['key']
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author_id = author_id.split('/')[-1]
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book.authors.add(self.get_or_create_author(author_id))
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if book.sync_cover and data.get('covers') and data['covers']:
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book.cover.save(*get_cover(data['covers'][0]), save=True)
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return book
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def get_or_create_author(self, remote_id):
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''' load that author '''
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try:
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return models.Author.objects.get(remote_id=remote_id)
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except ObjectDoesNotExist:
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pass
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resp = requests.get('%s/authors/%s.json' % (self.url, remote_id))
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if not resp.ok:
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resp.raise_for_status()
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data = resp.json()
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# ingest a new author
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author = models.Author(remote_id=remote_id)
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mappings = {
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'born': ('born', get_date),
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'died': ('died', get_date),
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}
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author = update_from_mappings(author, data, mappings)
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author.save()
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return author
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def expand_book_data(self, book):
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pass
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def get_cover(cover_url):
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''' ask openlibrary for the cover '''
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image_name = cover_url.split('/')[-1]
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response = requests.get(cover_url)
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if not response.ok:
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response.raise_for_status()
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image_content = ContentFile(response.content)
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return [image_name, image_content]
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