content: import uuid
  
  from django.db import models
  
  
  class Flavor(models.Model):
      name = models.CharField(max_length=255)
      label = models.CharField(max_length=255)
      parent = models.ForeignKey("self", blank=True, null=True, on_delete=models.SET_NULL)
      float_value = models.FloatField(blank=True, null=True)
      decimal_value = models.DecimalField(blank=True, null=True, max_digits=10, decimal_places=2)
      uuid = models.UUIDField(default=uuid.uuid4)
      datetime = models.DateTimeField(blank=True, null=True)
      date = models.DateField(blank=True, null=True)
      time = models.TimeField(blank=True, null=True)
      duration = models.DurationField(blank=True, null=True)
  
      def __str__(self):
          return self.name
  
  
  class Favorite(models.Model):
      is_favorite = models.BooleanField(default=False)
      flavor = models.OneToOneField(Flavor, on_delete=models.CASCADE)
  
  
  class Taste(models.Model):
      name = models.CharField(max_length=255)
      flavor = models.ManyToManyField(Flavor)
  
  
  class Origin(models.Model):
      name = models.CharField(max_length=255)
      flavor = models.ManyToManyField(Flavor, related_name="origins")
  
  
  class NewFlavor(Flavor):
      new_name = models.CharField(max_length=255)
  