moviewyrm/bookwyrm/models/shelf.py

104 lines
3.2 KiB
Python
Raw Normal View History

2021-03-08 16:49:10 +00:00
""" puttin' books on shelves """
2020-11-10 22:52:04 +00:00
import re
2021-09-27 22:55:55 +00:00
from django.core.exceptions import PermissionDenied
2020-03-07 06:56:44 +00:00
from django.db import models
from django.utils import timezone
2020-03-07 06:56:44 +00:00
from bookwyrm import activitypub
from .activitypub_mixin import CollectionItemMixin, OrderedCollectionMixin
from .base_model import BookWyrmModel
from . import fields
2020-03-07 06:56:44 +00:00
2020-09-21 15:16:34 +00:00
class Shelf(OrderedCollectionMixin, BookWyrmModel):
2021-04-26 16:15:42 +00:00
"""a list of books owned by a user"""
2021-03-08 16:49:10 +00:00
TO_READ = "to-read"
READING = "reading"
READ_FINISHED = "read"
READ_STATUS_IDENTIFIERS = (TO_READ, READING, READ_FINISHED)
name = fields.CharField(max_length=100)
2020-03-07 06:56:44 +00:00
identifier = models.CharField(max_length=100)
2021-09-28 23:36:47 +00:00
description = models.TextField(blank=True, null=True, max_length=500)
user = fields.ForeignKey(
2021-03-08 16:49:10 +00:00
"User", on_delete=models.PROTECT, activitypub_field="owner"
)
2020-03-07 06:56:44 +00:00
editable = models.BooleanField(default=True)
2021-02-02 17:37:46 +00:00
privacy = fields.PrivacyField()
2020-03-07 06:56:44 +00:00
books = models.ManyToManyField(
2021-03-08 16:49:10 +00:00
"Edition",
2020-03-07 06:56:44 +00:00
symmetrical=False,
2021-03-08 16:49:10 +00:00
through="ShelfBook",
through_fields=("shelf", "book"),
2020-03-07 06:56:44 +00:00
)
activity_serializer = activitypub.Shelf
2020-11-10 22:52:04 +00:00
def save(self, *args, **kwargs):
2021-04-26 16:15:42 +00:00
"""set the identifier"""
2021-02-07 05:00:08 +00:00
super().save(*args, **kwargs)
2020-11-10 22:52:04 +00:00
if not self.identifier:
2021-03-31 18:04:20 +00:00
self.identifier = self.get_identifier()
super().save(*args, **kwargs, broadcast=False)
def get_identifier(self):
2021-04-26 16:15:42 +00:00
"""custom-shelf-123 for the url"""
2021-03-31 18:04:20 +00:00
slug = re.sub(r"[^\w]", "", self.name).lower()
2021-09-18 18:32:00 +00:00
return f"{slug}-{self.id}"
2020-11-10 22:52:04 +00:00
@property
def collection_queryset(self):
2021-04-26 16:15:42 +00:00
"""list of books for this shelf, overrides OrderedCollectionMixin"""
2021-04-19 21:47:59 +00:00
return self.books.order_by("shelfbook")
2021-09-29 00:17:01 +00:00
@property
def deletable(self):
return self.editable and not self.shelfbook_set.exists()
def get_remote_id(self):
2021-04-26 16:15:42 +00:00
"""shelf identifier instead of id"""
base_path = self.user.remote_id
2021-03-31 18:04:20 +00:00
identifier = self.identifier or self.get_identifier()
2021-09-18 18:32:00 +00:00
return f"{base_path}/books/{identifier}"
2020-03-07 06:56:44 +00:00
2021-09-27 22:55:55 +00:00
def raise_not_deletable(self, viewer):
"""don't let anyone delete a default shelf"""
super().raise_not_deletable(viewer)
2021-09-29 00:17:01 +00:00
if not self.deletable:
raise PermissionDenied()
2021-09-27 22:55:55 +00:00
2020-03-07 06:56:44 +00:00
class Meta:
2021-04-26 16:15:42 +00:00
"""user/shelf unqiueness"""
2021-03-08 16:49:10 +00:00
unique_together = ("user", "identifier")
2020-03-07 06:56:44 +00:00
class ShelfBook(CollectionItemMixin, BookWyrmModel):
2021-04-26 16:15:42 +00:00
"""many to many join table for books and shelves"""
2021-03-08 16:49:10 +00:00
book = fields.ForeignKey(
"Edition", on_delete=models.PROTECT, activitypub_field="book"
2021-03-08 16:49:10 +00:00
)
shelf = models.ForeignKey("Shelf", on_delete=models.PROTECT)
shelved_date = models.DateTimeField(default=timezone.now)
user = fields.ForeignKey(
2021-03-08 16:49:10 +00:00
"User", on_delete=models.PROTECT, activitypub_field="actor"
)
2020-03-07 06:56:44 +00:00
activity_serializer = activitypub.ShelfItem
collection_field = "shelf"
2021-03-16 20:37:22 +00:00
def save(self, *args, **kwargs):
if not self.user:
self.user = self.shelf.user
super().save(*args, **kwargs)
2020-03-07 06:56:44 +00:00
class Meta:
2021-03-08 16:49:10 +00:00
"""an opinionated constraint!
you can't put a book on shelf twice"""
unique_together = ("book", "shelf")
ordering = ("-shelved_date", "-created_date", "-updated_date")