# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
#
from django.conf import settings
+from django.contrib.contenttypes.fields import GenericForeignKey
+from django.contrib.contenttypes.models import ContentType
from django.core.cache import caches
from django.contrib.auth.models import User
+from django.core.exceptions import ObjectDoesNotExist
from django.db import models
from django.db.models import permalink
from django.db.models.query import Prefetch
)
+class TagRelation(models.Model):
+
+ tag = models.ForeignKey('Tag', verbose_name=_('tag'), related_name='items')
+ content_type = models.ForeignKey(ContentType, verbose_name=_('content type'))
+ object_id = models.PositiveIntegerField(_('object id'), db_index=True)
+ content_object = GenericForeignKey('content_type', 'object_id')
+
+ class Meta:
+ db_table = 'catalogue_tag_relation'
+ unique_together = (('tag', 'content_type', 'object_id'),)
+
+ def __unicode__(self):
+ try:
+ return u'%s [%s]' % (self.content_type.get_object_for_this_type(pk=self.object_id), self.tag)
+ except ObjectDoesNotExist:
+ return u'<deleted> [%s]' % self.tag
+
+
class Tag(TagBase):
"""A tag attachable to books and fragments (and possibly anything).
_('category'), max_length=50, blank=False, null=False, db_index=True, choices=TAG_CATEGORIES)
description = models.TextField(_('description'), blank=True)
+ for_books = models.BooleanField(default=False)
+ for_pictures = models.BooleanField(default=False)
+
user = models.ForeignKey(User, blank=True, null=True)
gazeta_link = models.CharField(blank=True, max_length=240)
culturepl_link = models.CharField(blank=True, max_length=240)
after_change = Signal(providing_args=['instance', 'languages'])
+ intermediary_table_model = TagRelation
+
class UrlDeprecationWarning(DeprecationWarning):
def __init__(self, tags=None):
super(Tag.UrlDeprecationWarning, self).__init__()
return meta_tags
-# Pickle complains about not having this.
-TagRelation = Tag.intermediary_table_model
-
-
def prefetch_relations(objects, category, only_name=True):
queryset = TagRelation.objects.filter(tag__category=category).select_related('tag')
if only_name: