forked from mirrors/bookwyrm
268 lines
8.9 KiB
Python
268 lines
8.9 KiB
Python
''' models for storing different kinds of Activities '''
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from django.utils import timezone
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from django.utils.http import http_date
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from django.core.validators import MaxValueValidator, MinValueValidator
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from django.db import models
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from model_utils.managers import InheritanceManager
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from bookwyrm import activitypub
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from .base_model import ActivitypubMixin, OrderedCollectionPageMixin
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from .base_model import ActivityMapping, BookWyrmModel
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class Status(OrderedCollectionPageMixin, BookWyrmModel):
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''' any post, like a reply to a review, etc '''
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user = models.ForeignKey('User', on_delete=models.PROTECT)
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content = models.TextField(blank=True, null=True)
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mention_users = models.ManyToManyField('User', related_name='mention_user')
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mention_books = models.ManyToManyField(
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'Edition', related_name='mention_book')
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local = models.BooleanField(default=True)
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privacy = models.CharField(max_length=255, default='public')
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sensitive = models.BooleanField(default=False)
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# the created date can't be this, because of receiving federated posts
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published_date = models.DateTimeField(default=timezone.now)
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favorites = models.ManyToManyField(
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'User',
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symmetrical=False,
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through='Favorite',
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through_fields=('status', 'user'),
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related_name='user_favorites'
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)
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reply_parent = models.ForeignKey(
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'self',
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null=True,
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on_delete=models.PROTECT
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)
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objects = InheritanceManager()
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# ---- activitypub serialization settings for this model ----- #
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@property
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def ap_to(self):
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''' should be related to post privacy I think '''
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return ['https://www.w3.org/ns/activitystreams#Public']
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@property
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def ap_cc(self):
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''' should be related to post privacy I think '''
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return [self.user.ap_followers]
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@property
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def ap_replies(self):
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''' structured replies block '''
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return self.to_replies()
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shared_mappings = [
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ActivityMapping('id', 'remote_id'),
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ActivityMapping('url', 'remote_id'),
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ActivityMapping('inReplyTo', 'reply_parent'),
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ActivityMapping(
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'published',
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'published_date',
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activity_formatter=lambda d: http_date(d.timestamp())
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),
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ActivityMapping('attributedTo', 'user'),
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ActivityMapping('to', 'ap_to'),
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ActivityMapping('cc', 'ap_cc'),
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ActivityMapping('replies', 'ap_replies'),
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]
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# serializing to bookwyrm expanded activitypub
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activity_mappings = shared_mappings + [
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ActivityMapping('name', 'name'),
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ActivityMapping('inReplyToBook', 'book'),
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ActivityMapping('rating', 'rating'),
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ActivityMapping('quote', 'quote'),
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ActivityMapping('content', 'content'),
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]
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# for serializing to standard activitypub without extended types
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pure_activity_mappings = shared_mappings + [
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ActivityMapping('name', 'ap_pure_name'),
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ActivityMapping('content', 'ap_pure_content'),
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]
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activity_serializer = activitypub.Note
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#----- replies collection activitypub ----#
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@classmethod
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def replies(cls, status):
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''' load all replies to a status. idk if there's a better way
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to write this so it's just a property '''
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return cls.objects.filter(reply_parent=status).select_subclasses()
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@property
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def status_type(self):
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''' expose the type of status for the ui using activity type '''
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return self.activity_serializer.__name__
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def to_replies(self, **kwargs):
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''' helper function for loading AP serialized replies to a status '''
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return self.to_ordered_collection(
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self.replies(self),
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remote_id='%s/replies' % self.remote_id,
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**kwargs
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)
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class GeneratedStatus(Status):
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''' these are app-generated messages about user activity '''
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@property
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def ap_pure_content(self):
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''' indicate the book in question for mastodon (or w/e) users '''
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message = self.content
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books = ', '.join(
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'<a href="%s">"%s"</a>' % (self.book.local_id, self.book.title) \
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for book in self.mention_books
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)
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return '%s %s' % (message, books)
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activity_serializer = activitypub.GeneratedNote
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pure_activity_serializer = activitypub.Note
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class Comment(Status):
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''' like a review but without a rating and transient '''
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book = models.ForeignKey('Edition', on_delete=models.PROTECT)
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@property
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def ap_pure_content(self):
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''' indicate the book in question for mastodon (or w/e) users '''
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return self.content + '<br><br>(comment on <a href="%s">"%s"</a>)' % \
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(self.book.local_id, self.book.title)
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activity_serializer = activitypub.Comment
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pure_activity_serializer = activitypub.Note
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class Quotation(Status):
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''' like a review but without a rating and transient '''
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quote = models.TextField()
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book = models.ForeignKey('Edition', on_delete=models.PROTECT)
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@property
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def ap_pure_content(self):
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''' indicate the book in question for mastodon (or w/e) users '''
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return '"%s"<br>-- <a href="%s">"%s"</a>)<br><br>%s' % (
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self.quote,
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self.book.local_id,
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self.book.title,
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self.content,
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)
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activity_serializer = activitypub.Quotation
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pure_activity_serializer = activitypub.Note
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class Review(Status):
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''' a book review '''
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name = models.CharField(max_length=255, null=True)
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book = models.ForeignKey('Edition', on_delete=models.PROTECT)
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rating = models.IntegerField(
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default=None,
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null=True,
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blank=True,
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validators=[MinValueValidator(1), MaxValueValidator(5)]
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)
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@property
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def ap_pure_name(self):
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''' clarify review names for mastodon serialization '''
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return 'Review of "%s" (%d stars): %s' % (
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self.book.title,
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self.rating,
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self.name
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)
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@property
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def ap_pure_content(self):
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''' indicate the book in question for mastodon (or w/e) users '''
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return self.content + '<br><br>(<a href="%s">"%s"</a>)' % \
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(self.book.local_id, self.book.title)
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activity_serializer = activitypub.Review
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pure_activity_serializer = activitypub.Article
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class Favorite(ActivitypubMixin, BookWyrmModel):
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''' fav'ing a post '''
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user = models.ForeignKey('User', on_delete=models.PROTECT)
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status = models.ForeignKey('Status', on_delete=models.PROTECT)
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# ---- activitypub serialization settings for this model ----- #
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activity_mappings = [
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ActivityMapping('id', 'remote_id'),
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ActivityMapping('actor', 'user'),
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ActivityMapping('object', 'status'),
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]
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activity_serializer = activitypub.Like
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class Meta:
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''' can't fav things twice '''
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unique_together = ('user', 'status')
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class Boost(Status):
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''' boost'ing a post '''
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boosted_status = models.ForeignKey(
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'Status',
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on_delete=models.PROTECT,
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related_name="boosters")
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activity_mappings = [
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ActivityMapping('id', 'remote_id'),
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ActivityMapping('actor', 'user'),
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ActivityMapping('object', 'boosted_status'),
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]
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activity_serializer = activitypub.Boost
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# This constraint can't work as it would cross tables.
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# class Meta:
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# unique_together = ('user', 'boosted_status')
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class ReadThrough(BookWyrmModel):
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''' Store progress through a book in the database. '''
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user = models.ForeignKey('User', on_delete=models.PROTECT)
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book = models.ForeignKey('Book', on_delete=models.PROTECT)
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pages_read = models.IntegerField(
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null=True,
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blank=True)
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start_date = models.DateTimeField(
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blank=True,
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null=True)
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finish_date = models.DateTimeField(
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blank=True,
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null=True)
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NotificationType = models.TextChoices(
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'NotificationType',
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'FAVORITE REPLY TAG FOLLOW FOLLOW_REQUEST BOOST IMPORT')
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class Notification(BookWyrmModel):
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''' you've been tagged, liked, followed, etc '''
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user = models.ForeignKey('User', on_delete=models.PROTECT)
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related_book = models.ForeignKey(
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'Edition', on_delete=models.PROTECT, null=True)
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related_user = models.ForeignKey(
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'User',
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on_delete=models.PROTECT, null=True, related_name='related_user')
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related_status = models.ForeignKey(
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'Status', on_delete=models.PROTECT, null=True)
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related_import = models.ForeignKey(
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'ImportJob', on_delete=models.PROTECT, null=True)
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read = models.BooleanField(default=False)
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notification_type = models.CharField(
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max_length=255, choices=NotificationType.choices)
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class Meta:
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''' checks if notifcation is in enum list for valid types '''
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constraints = [
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models.CheckConstraint(
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check=models.Q(notification_type__in=NotificationType.values),
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name="notification_type_valid",
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)
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]
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