Add MergedBookDataModel

This commit is contained in:
Bart Schuurmans 2024-02-28 22:31:41 +01:00
parent bac52eef3e
commit b3753ab6da
2 changed files with 84 additions and 3 deletions

View file

@ -0,0 +1,48 @@
# Generated by Django 3.2.24 on 2024-02-28 21:30
from django.db import migrations, models
import django.db.models.deletion
class Migration(migrations.Migration):
dependencies = [
("bookwyrm", "0196_merge_pr3134_into_main"),
]
operations = [
migrations.CreateModel(
name="MergedBook",
fields=[
("deleted_id", models.IntegerField(primary_key=True, serialize=False)),
(
"merged_into",
models.ForeignKey(
on_delete=django.db.models.deletion.PROTECT,
related_name="absorbed",
to="bookwyrm.book",
),
),
],
options={
"abstract": False,
},
),
migrations.CreateModel(
name="MergedAuthor",
fields=[
("deleted_id", models.IntegerField(primary_key=True, serialize=False)),
(
"merged_into",
models.ForeignKey(
on_delete=django.db.models.deletion.PROTECT,
related_name="absorbed",
to="bookwyrm.author",
),
),
],
options={
"abstract": False,
},
),
]

View file

@ -1,4 +1,5 @@
""" database schema for books and shelves """
from itertools import chain
import re
from typing import Any
@ -192,9 +193,13 @@ class Book(BookDataModel):
"""properties of this edition, as a string"""
items = [
self.physical_format if hasattr(self, "physical_format") else None,
f"{self.languages[0]} language"
if self.languages and self.languages[0] and self.languages[0] != "English"
else None,
(
f"{self.languages[0]} language"
if self.languages
and self.languages[0]
and self.languages[0] != "English"
else None
),
str(self.published_date.year) if self.published_date else None,
", ".join(self.publishers) if hasattr(self, "publishers") else None,
]
@ -451,6 +456,34 @@ class Edition(Book):
return queryset
class MergedBookDataModel(models.Model):
"""a BookDataModel instance that has been merged into another instance. kept
to be able to redirect old URLs"""
deleted_id = models.IntegerField(primary_key=True)
class Meta:
"""abstract just like BookDataModel"""
abstract = True
class MergedAuthor(MergedBookDataModel):
"""an Author that has been merged into another one"""
merged_into = models.ForeignKey(
"Author", on_delete=models.PROTECT, related_name="absorbed"
)
class MergedBook(MergedBookDataModel):
"""an Book that has been merged into another one"""
merged_into = models.ForeignKey(
"Book", on_delete=models.PROTECT, related_name="absorbed"
)
def isbn_10_to_13(isbn_10):
"""convert an isbn 10 into an isbn 13"""
isbn_10 = re.sub(r"[^0-9X]", "", isbn_10)