class Image(models.Model):
    title = models.CharField('Title', max_length="30")
    image = models.ImageField(upload_to='foto')

    def __unicode__(self):
        return self.title

    @models.permalink
    def get_absolute_url(self):
        return 'foto.views.object_detail', (), {'object_id': self.pk}

    @property
    def image_file(self):
        return "%s%s" % (settings.MEDIA_ROOT, self.image)

    @property
	  def thumb_file(self):
        path, name = self.image_file.rsplit('/', 1)
        return ''.join((path, '/tn_', name))

    @property
    def thumb(self):
        path, name = self.image.rsplit('/', 1)
        return ''.join((path, '/tn_', name))

    class Admin:
        pass