class Video(models.Model):
    youtube_code = models.CharField(max_length=11)
    

class VideoRel(models.Model):
    video = models.ForeignKey('Video')
    content_type = models.ForeignKey(ContentType)
    object_id = models.PositiveIntegerField(verbose_name=u'ID объекта')
    content_object = generic.GenericForeignKey()


class AnotherModel(models.Model):
    videos = generic.GenericRelation('VideoRel')