class Category(MPTTModel):
    name = models.CharField(_(u'Название'), max_length=255)
    slug = models.SlugField(u'Slug', max_length=255)
    image = ImageField(upload_to='category/images')
    parent = TreeForeignKey('self', null=True, blank=True, related_name='children', verbose_name=_(u'Родительская категория'))

    class MPTTMeta:
        order_insertion_by = ['name']

    class Meta:
        verbose_name = _(u'Категория')
        verbose_name_plural = _(u'Категории')

    def __unicode__(self):
        return self.name