forum/models/tag.py

   1 from base import *
   2
   3 from django.utils.translation import ugettext as _
   4 import django.dispatch
   5
   6 class ActiveTagManager(UndeletedObjectManager):
   7     def get_query_set(self):
   8         return super(UndeletedObjectManager, self).get_query_set().exclude(used_count=0)
   9
  10
  11 class Tag(DeletableContent):
  12     name            = models.CharField(max_length=255, unique=True)
  13     created_by      = models.ForeignKey(User, related_name='created_tags')
  14     marked_by       = models.ManyToManyField(User, related_name="marked_tags", through="MarkedTag")
  15     # Denormalised data
  16     used_count = models.PositiveIntegerField(default=0)
  17
  18     objects = models.Manager()
  19     active = ActiveTagManager()
  20
  21     class Meta(DeletableContent.Meta):
  22         db_table = u'tag'
  23         ordering = ('-used_count', 'name')
  24
  25     def __unicode__(self):
  26         return self.name
  27
  28 class MarkedTag(models.Model):
  29     TAG_MARK_REASONS = (('good',_('interesting')),('bad',_('ignored')))
  30     tag = models.ForeignKey(Tag, related_name='user_selections')
  31     user = models.ForeignKey(User, related_name='tag_selections')
  32     reason = models.CharField(max_length=16, choices=TAG_MARK_REASONS)
  33
  34     class Meta:
  35         app_label = 'forum'
  36