from django.contrib.auth.models import User from django.db import models from django.db.models import Model from mptt.models import MPTTModel, TreeForeignKey # Create your models here. class Genre(MPTTModel): name = models.CharField(max_length=50, unique=True) parent = TreeForeignKey('self', on_delete=models.CASCADE, null=True, blank=True, related_name='children') class MPTTMeta: order_insertion_by = ['name']