old_contents: from django.db import models
  from django.utils.baseconv import base64
  from django_base64field.fields import Base64Field
  
  
  class Planet(models.Model):
      ek = Base64Field()
      name = models.CharField(
          default='Fucker',
          max_length=103
      )
  
  
  class Continent(models.Model):
      ek = Base64Field()
      name = models.CharField(
          default='Suckers!',
          max_length=13
      )
      planet = models.ForeignKey(Planet, to_field='ek')
  
  
  class Helper(models.Model):
      """
      base64 encoded value won't be available at first time creation.
      It can ve accessible by getting the object from database after creation
      mean when it get saved completely, But what if we don't want to get our base64
      encoded key from our sweet model by retrieving it again from database?
  
      It's easy, efficient, holly and molly!
      """
      ek = Base64Field()
  
      def _ek(self):
          if self.ek: return self.ek
  
          if not self.ek and self.pk:
              return base64.encode(self.pk)
  
          return self.ek
  
  
  class CustomReceiver(models.Model):
      """
      Passing custom receiver to generate `youyouid` with a custom receiver.
      """
      youyouid = Base64Field(
          encode_receiver='django_base64field.tests.receivers:custom_receiver'
      )
  
  
new_contents: from django.db import models
  from django.utils.baseconv import base64
  from django_base64field.fields import Base64Field
  
  
  class Planet(models.Model):
      # Making `ek` unique just because it will be used as `FK`
      # in other models.
      ek = Base64Field(unique=True)
      name = models.CharField(
          default='Fucker',
          max_length=103
      )
  
  
  class Continent(models.Model):
      ek = Base64Field()
      name = models.CharField(
          default='Suckers!',
          max_length=13
      )
      planet = models.ForeignKey(Planet, to_field='ek')
  
  
  class Helper(models.Model):
      """
      base64 encoded value won't be available at first time creation.
      It can ve accessible by getting the object from database after creation
      mean when it get saved completely, But what if we don't want to get our base64
      encoded key from our sweet model by retrieving it again from database?
  
      It's easy, efficient, holly and molly!
      """
      ek = Base64Field()
  
      def _ek(self):
          if self.ek: return self.ek
  
          if not self.ek and self.pk:
              return base64.encode(self.pk)
  
          return self.ek
  
  
  class CustomReceiver(models.Model):
      """
      Passing custom receiver to generate `youyouid` with a custom receiver.
      """
      youyouid = Base64Field(
          encode_receiver='django_base64field.tests.receivers:custom_receiver'
      )
  
  
subject: Add little bit comments for Planet model