Migrando dados de auth.User existentes para o novo modelo de usuário personalizado do Django 1.5?

1. 
   Antes de fazer a troca, certifique-se de que o suporte ao sul esteja habilitado no aplicativo que contém seu modelo de usuário personalizado (para fins do guia, chamaremos de accounts e o modelo User ). Neste ponto, você deve ainda não tem um modelo de usuário personalizado.
   

   $ ./manage.py schemamigration accounts --initial
   Creating migrations directory at 'accounts/migrations'...
   Creating __init__.py in 'accounts/migrations'...
   Created 0001_initial.py.
   
   $ ./manage.py migrate accounts [--fake if you've already syncdb'd this app]
    Running migrations for accounts:
    - Migrating forwards to 0001_initial.
    > accounts:0001_initial
    - Loading initial data for accounts.
   

2. 
   Crie uma nova migração de usuário em branco no aplicativo de contas.
   

   $ ./manage.py schemamigration accounts --empty switch_to_custom_user
   Created 0002_switch_to_custom_user.py.
   

3. 
   Crie seu User personalizado model nas accounts app, mas certifique-se de que esteja definido como:
   

   class SiteUser(AbstractUser): pass
   

4. 
   Preencha a migração em branco com o código a seguir.
   

   # encoding: utf-8
   from south.db import db
   from south.v2 import SchemaMigration
   
   class Migration(SchemaMigration):
   
       def forwards(self, orm):
           # Fill in the destination name with the table name of your model
           db.rename_table('auth_user', 'accounts_user')
           db.rename_table('auth_user_groups', 'accounts_user_groups')
           db.rename_table('auth_user_user_permissions', 'accounts_user_user_permissions')
   
       def backwards(self, orm):
           db.rename_table('accounts_user', 'auth_user')
           db.rename_table('accounts_user_groups', 'auth_user_groups')
           db.rename_table('accounts_user_user_permissions', 'auth_user_user_permissions')
   
       models = { ....... } # Leave this alone
   

5. 
   Execute a migração
   

   $ ./manage.py migrate accounts
    - Migrating forwards to 0002_switch_to_custom_user.
    > accounts:0002_switch_to_custom_user
    - Loading initial data for accounts.
   

6. 
   Faça qualquer alteração no seu modelo de usuário agora.
   

   # settings.py
   AUTH_USER_MODEL = 'accounts.User'
   
   # accounts/models.py
   class SiteUser(AbstractUser):
       site = models.ForeignKey(Site, null=True)
   

7. 
   crie e execute migrações para esta mudança
   

   $ ./manage.py schemamigration accounts --auto
    + Added field site on accounts.User
   Created 0003_auto__add_field_user_site.py.
   
   $ ./manage.py migrate accounts
    - Migrating forwards to 0003_auto__add_field_user_site.
    > accounts:0003_auto__add_field_user_site
    - Loading initial data for accounts.
   

# encoding: utf-8
from south.db import db
from south.v2 import SchemaMigration
from django.db import models

class Migration(SchemaMigration):

    def forwards(self, orm):
        # Fill in the destination name with the table name of your model
        db.rename_table('auth_user', 'accounts_user')
        db.rename_table('auth_user_groups', 'accounts_user_groups')
        db.rename_table('auth_user_permissions', 'accounts_user_permissions')
        # == YOUR CUSTOM COLUMNS ==
        db.add_column('accounts_user', 'site_id',
            models.ForeignKey(orm['sites.Site'], null=True, blank=False)))

    def backwards(self, orm):
        db.rename_table('accounts_user', 'auth_user')
        db.rename_table('accounts_user_groups', 'auth_user_groups')
        db.rename_table('accounts_user_user_permissions', 'auth_user_user_permissions')
        # == YOUR CUSTOM COLUMNS ==
        db.remove_column('accounts_user', 'site_id')

    models = { ....... } # Leave this alone