Merge pull request #3081 from bookwyrm-social/handle-isbn-error

Fix error produced when an unexpected ISBN format is used
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Mouse Reeve 2023-11-06 11:06:46 -08:00 committed by GitHub
commit ee88c3b914
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4 changed files with 25 additions and 4 deletions

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@ -40,7 +40,12 @@ class IsbnHyphenator:
self.__element_tree = ElementTree.parse(self.__range_file_path)
gs1_prefix = isbn_13[:3]
reg_group = self.__find_reg_group(isbn_13, gs1_prefix)
try:
reg_group = self.__find_reg_group(isbn_13, gs1_prefix)
except ValueError:
# if the reg groups are invalid, just return the original isbn
return isbn_13
if reg_group is None:
return isbn_13 # failed to hyphenate

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@ -366,9 +366,9 @@ class Edition(Book):
# normalize isbn format
if self.isbn_10:
self.isbn_10 = re.sub(r"[^0-9X]", "", self.isbn_10)
self.isbn_10 = normalize_isbn(self.isbn_10)
if self.isbn_13:
self.isbn_13 = re.sub(r"[^0-9X]", "", self.isbn_13)
self.isbn_13 = normalize_isbn(self.isbn_13)
# set rank
self.edition_rank = self.get_rank()
@ -463,6 +463,11 @@ def isbn_13_to_10(isbn_13):
return converted + str(checkdigit)
def normalize_isbn(isbn):
"""Remove unexpected characters from ISBN 10 or 13"""
return re.sub(r"[^0-9X]", "", isbn)
# pylint: disable=unused-argument
@receiver(models.signals.post_save, sender=Edition)
def preview_image(instance, *args, **kwargs):

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@ -11,7 +11,7 @@ from django.test import TestCase
from django.utils import timezone
from bookwyrm import models, settings
from bookwyrm.models.book import isbn_10_to_13, isbn_13_to_10
from bookwyrm.models.book import isbn_10_to_13, isbn_13_to_10, normalize_isbn
from bookwyrm.settings import ENABLE_THUMBNAIL_GENERATION
@ -72,6 +72,10 @@ class Book(TestCase):
isbn_10 = isbn_13_to_10(isbn_13)
self.assertEqual(isbn_10, "178816167X")
def test_normalize_isbn(self):
"""Remove misc characters from ISBNs"""
self.assertEqual(normalize_isbn("978-0-4633461-1-2"), "9780463346112")
def test_get_edition_info(self):
"""text slug about an edition"""
book = models.Edition.objects.create(title="Test Edition")

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@ -29,3 +29,10 @@ class TestISBN(TestCase):
self.assertEqual(hyphenator.hyphenate("9786769533251"), "9786769533251")
# 979-8 (United States) 2300000-3499999 (unassigned)
self.assertEqual(hyphenator.hyphenate("9798311111111"), "9798311111111")
def test_isbn_hyphenation_invalid_data(self):
"""Make sure not to throw an error when a bad ISBN is found"""
# no action taken
self.assertEqual(hyphenator.hyphenate("978-0-4633461-1-2"), "978-0-4633461-1-2")
self.assertEqual(hyphenator.hyphenate("9-0-4633461-1-2"), "9-0-4633461-1-2")
self.assertEqual(hyphenator.hyphenate("90463346112"), "90463346112")