forked from mirrors/bookwyrm
60 lines
1.9 KiB
Python
60 lines
1.9 KiB
Python
''' models for storing different kinds of Activities '''
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import urllib.parse
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from django.db import models
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from bookwyrm import activitypub
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from bookwyrm.settings import DOMAIN
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from .activitypub_mixin import CollectionItemMixin, OrderedCollectionMixin
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from .base_model import BookWyrmModel
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from . import fields
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class Tag(OrderedCollectionMixin, BookWyrmModel):
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''' freeform tags for books '''
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name = fields.CharField(max_length=100, unique=True)
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identifier = models.CharField(max_length=100)
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@classmethod
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def book_queryset(cls, identifier):
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''' county of books associated with this tag '''
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return cls.objects.filter(
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identifier=identifier
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).order_by('-updated_date')
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@property
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def collection_queryset(self):
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''' books associated with this tag '''
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return self.book_queryset(self.identifier)
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def get_remote_id(self):
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''' tag should use identifier not id in remote_id '''
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base_path = 'https://%s' % DOMAIN
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return '%s/tag/%s' % (base_path, self.identifier)
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def save(self, *args, **kwargs):
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''' create a url-safe lookup key for the tag '''
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if not self.id:
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# add identifiers to new tags
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self.identifier = urllib.parse.quote_plus(self.name)
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super().save(*args, **kwargs)
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class UserTag(CollectionItemMixin, BookWyrmModel):
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''' an instance of a tag on a book by a user '''
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user = fields.ForeignKey(
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'User', on_delete=models.PROTECT, activitypub_field='actor')
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book = fields.ForeignKey(
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'Edition', on_delete=models.PROTECT, activitypub_field='object')
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tag = fields.ForeignKey(
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'Tag', on_delete=models.PROTECT, activitypub_field='target')
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activity_serializer = activitypub.Add
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object_field = 'book'
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collection_field = 'tag'
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class Meta:
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''' unqiueness constraint '''
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unique_together = ('user', 'book', 'tag')
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