March 2011 Archives

Removing A Django Application Completely with South

Let's pretend that the application that you want remove contains the following model in myapp/models.py: class SomeModel(models.Model): data = models.TextField

Create the initial migration and apply it to the database:

    ./manage.py schemamigration --initial myapp
    ./manage.py migrate

To remove the Models edit myapp/models.py and remove all the model definitions

Create the deleting migration:

    ./manage.py schemamigration myapp

Edit myapp/migrations/0002autodel_somemodel.py to remove the related content types

    from django.contrib.contenttypes.models import ContentType
    ...
    def forwards(self, orm):

        # Deleting model 'SomeModel'
        db.delete_table('myapp_somemodel')
        for content_type in ContentType.objects.filter(app_label='myapp'):
            content_type.delete()

Migrate the App and remove the table, then fake a zero migration to clean out the south tables

    ./manage.py migrate
    ./manage.py migrate myapp zero --fake

Remove the app from your settings.py and it should now be fully gone....