Change Django model column default using South

问题

I'm using South with a Postgresql DB for a Django project.

There is a model field that I'd like to change the default value for going forward. I dont need previous records effected. Just new records.

Do I need to do a migration for this, or just change the model?

OLD FIELD DETAIL:

background_style = models.CharField(max_length=1, choices=BACKGROUND_STYLE, default=BackgroundStyleCode.CENTERED)

NEW FIELD DETAIL:

background_style = models.CharField(max_length=1, choices=BACKGROUND_STYLE, default=BackgroundStyleCode.STRETCHED)

(model name is "Page")

回答1:

You should run a migration. Any time you make a change to a model, no matter how insignificant, you should create a schema migration so that you can move backwards and forwards to any point in time without any "magic" edits.

来源：https://stackoverflow.com/questions/8558148/change-django-model-column-default-using-south