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64 lines
1.9 KiB
Python
64 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.apps import apps
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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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@property
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def books(self):
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""" count of books associated with this tag """
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edition_model = apps.get_model("bookwyrm.Edition", require_ready=True)
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return (
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edition_model.objects.filter(usertag__tag__identifier=self.identifier)
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.order_by("-created_date")
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.distinct()
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)
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collection_queryset = books
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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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)
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book = fields.ForeignKey(
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"Edition", on_delete=models.PROTECT, activitypub_field="object"
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)
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tag = fields.ForeignKey("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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