moviewyrm/bookwyrm/models/status.py

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