74 lines
2.4 KiB
Python
74 lines
2.4 KiB
Python
from django.db import models
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from django.db.models import CASCADE
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from django.utils.translation import gettext_lazy as _
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from django.core.exceptions import ObjectDoesNotExist
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from django.contrib.contenttypes.fields import GenericForeignKey
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from django.contrib.contenttypes.models import ContentType
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from judge.models.profile import Profile
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from judge.caching import cache_wrapper
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__all__ = ["BookMark"]
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class BookMark(models.Model):
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page = models.CharField(
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max_length=30,
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verbose_name=_("associated page"),
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db_index=True,
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) # deprecated
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score = models.IntegerField(verbose_name=_("votes"), default=0)
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content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)
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object_id = models.PositiveIntegerField()
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linked_object = GenericForeignKey("content_type", "object_id")
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@cache_wrapper(prefix="BMgb")
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def is_bookmarked_by(self, user):
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return MakeBookMark.objects.filter(bookmark=self, user=user).exists()
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class Meta:
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verbose_name = _("bookmark")
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verbose_name_plural = _("bookmarks")
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indexes = [
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models.Index(fields=["content_type", "object_id"]),
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]
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unique_together = ("content_type", "object_id")
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def __str__(self):
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return f"bookmark for {self.linked_object}"
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class MakeBookMark(models.Model):
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bookmark = models.ForeignKey(BookMark, related_name="bookmark", on_delete=CASCADE)
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user = models.ForeignKey(
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Profile, related_name="user_bookmark", on_delete=CASCADE, db_index=True
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)
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class Meta:
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indexes = [
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models.Index(fields=["user", "bookmark"]),
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]
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unique_together = ["user", "bookmark"]
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verbose_name = _("make bookmark")
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verbose_name_plural = _("make bookmarks")
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@cache_wrapper(prefix="gocb", expected_type=BookMark)
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def _get_or_create_bookmark(content_type, object_id):
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bookmark, created = BookMark.objects.get_or_create(
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content_type=content_type,
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object_id=object_id,
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)
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return bookmark
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class Bookmarkable:
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def get_or_create_bookmark(self):
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content_type = ContentType.objects.get_for_model(self)
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object_id = self.pk
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return _get_or_create_bookmark(content_type, object_id)
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def dirty_bookmark(bookmark, profile):
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bookmark.is_bookmarked_by.dirty(bookmark, profile)
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_get_or_create_bookmark.dirty(bookmark.content_type, bookmark.object_id)
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