- translators = models.ManyToManyField(Author, related_name='translated_book_set', related_query_name='translated_book', blank=True)
- title = models.CharField(max_length=255)
- language = models.CharField(max_length=3)
- based_on = models.ForeignKey('self', models.PROTECT, related_name='translation', null=True, blank=True)
-
+ translators = models.ManyToManyField(
+ Author,
+ related_name="translated_book_set",
+ related_query_name="translated_book",
+ blank=True,
+ )
+ title = models.CharField(max_length=255, blank=True)
+ language = models.CharField(max_length=3, blank=True)
+ based_on = models.ForeignKey(
+ "self", models.PROTECT, related_name="translation", null=True, blank=True
+ )