It does but in general there’s less insistence (as compared to Rails, for example) to have “smart models, dumb controllers” - therefore in Django a lot of busin

It does but in general there’s less insistence (as compared to Rails, for example) to have “smart models, dumb controllers” - therefore in Django a lot of business logic can end up in the controller and thus doesn’t apply in the admin. This is a convention though - one could just as easily do it the other way and embed all the business rules in the models.