Django multi menu

Good day to all, help with the structure

I have two models

class MenuPages(models.Model): class Meta(): db_table = 'menu' verbose_name = 'Меню' title = models.CharField(max_length=255,verbose_name='Наименование меню',) type_menu = models.CharField(max_length=70,choices=MENU_TYPE_CHOISE,verbose_name='Тип Страницы') alias = models.SlugField(max_length=200) items = models.ManyToManyField(Casino,blank=True,verbose_name='Прикрепить') def __unicode__(self): menu = u'Дочернеи меню' return format('%s - %s(%d)' % (self.title, menu, ChildMenu.objects.filter(parent_menu=self.pk).count())) def save(self, *args,**kwargs): symbols = (u"абвгдеёжзийклмнопрстуфхцчшщъыьэюяАБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ", u"abvgdeejzijklmnoprstufhzcss_y_euaABVGDEEJZIJKLMNOPRSTUFHZCSS_Y_EUA") tr = dict([(ord(a), ord(b)) for (a, b) in zip(*symbols)]) title = self.title title_exists = MenuPages.objects.filter(alias=title.translate(tr)).count() if title_exists > 0: title = '%s_%s' % (self.title, title_exists) self.alias = slugify(title.translate(tr)) super(MenuPages, self).save(*args, **kwargs) class ChildMenu(models.Model): class Meta(): db_table = 'child_menu' verbose_name= u'Дочернее меню' title = models.CharField(max_length=255, verbose_name='Наименование меню') type_menu = models.CharField(max_length=70,choices=MENU_TYPE_CHOISE, verbose_name='Тип Страницы') alias = models.SlugField(max_length=200) parent_menu = models.ForeignKey(MenuPages) items = models.ManyToManyField(Casino,null=True,blank=True) def save(self, *args,**kwargs): symbols = (u"абвгдеёжзийклмнопрстуфхцчшщъыьэюяАБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯ", u"abvgdeejzijklmnoprstufhzcss_y_euaABVGDEEJZIJKLMNOPRSTUFHZCSS_Y_EUA") tr = dict([(ord(a), ord(b)) for (a, b) in zip(*symbols)]) title = self.title title_exists = MenuPages.objects.filter(alias=title.translate(tr)).count() if title_exists > 0: title = '%s_%s' % (self.title, title_exists) self.alias = slugify(title.translate(tr)) super(ChildMenu, self).save(*args, **kwargs) 

Tell me how to organize the menu tree

Menu1 - Submenu1 - Submenu1 Menu2 Menu3 - Submenu3 - Submenu3