moviewyrm/fedireads/openlibrary.py
2020-01-28 12:13:28 -08:00

76 lines
2.2 KiB
Python

''' activitystream api and books '''
from django.core.exceptions import ObjectDoesNotExist
import requests
from fedireads.models import Author, Book, Work
from fedireads.settings import OL_URL
def get_or_create_book(olkey, user=None, update=True):
''' add a book '''
# TODO: check if this is a valid open library key, and a book
olkey = olkey
# get the existing entry from our db, if it exists
try:
book = Book.objects.get(openlibrary_key=olkey)
if not update:
return book
# we have the book, but still want to update it from OL
except ObjectDoesNotExist:
# no book was found, so we start creating a new one
book = Book(openlibrary_key=olkey)
# load the book json from openlibrary.org
response = requests.get(OL_URL + olkey + '.json')
if not response.ok:
response.raise_for_status()
data = response.json()
book.data = data
if user and user.is_authenticated:
book.added_by = user
# great, we can update our book.
book.save()
# we also need to know the author and works related to this book.
for work_id in data['works']:
work_id = work_id['key']
book.works.add(get_or_create_work(work_id))
for author_id in data['authors']:
author_id = author_id['key']
book.authors.add(get_or_create_author(author_id))
return book
def get_or_create_work(olkey):
''' load em up '''
# TODO: validate that this is a work key
# TODO: error handling
try:
work = Work.objects.get(openlibrary_key=olkey)
except ObjectDoesNotExist:
response = requests.get(OL_URL + olkey + '.json')
data = response.json()
work = Work(openlibrary_key=olkey, data=data)
work.save()
return work
def get_or_create_author(olkey):
''' load that author '''
# TODO: validate that this is an author key
# TODO: error handling
try:
author = Author.objects.get(openlibrary_key=olkey)
except ObjectDoesNotExist:
response = requests.get(OL_URL + olkey + '.json')
data = response.json()
author = Author(openlibrary_key=olkey, data=data)
author.save()
return author