[geraneum]

I like your approach and I think what you’re proposing can also be fine in many situations. Managers are not the same as models and using them here is not drastically different than using a separate service class/function. Managers can be accessed through the model and they have “enough” exposure to table wide operation (querysets). I usually start with managers in a separate file (managers.py) for my business logic and when the project grows, I extract the logic into services in a way that only queryset definitions remain in the manager. You can mock manager’s methods for tests (get_queryset) and the business logic code in them can be written in a relatively portable manner.