Hello, I'm reading Spryker docs and in the first page I saw, that "advanced calculations" should be

USZB5JN4W

Hello,
I'm reading Spryker docs and in the first page I saw, that "advanced calculations" should be done in the "persistence layer". I always thought that advanced calculations are business logic and should be in the "business" layer. Could you please tell me why they should be in the persistence?

Chemaclass

I think “processing” and “advance calculations” are referring to DB data in this context. The persistence layer is the infrastructure layer responsible for the DB operations. You should not put domain/business logic in it.

USZB5JN4W

I know what persistence should be for, but this text is in the first page of the official docs and sounds super confusing 🙂 Even if this is referring to the DB data, I think, it should be mapped to the transfer objects and processed in the business layer. If docs authors mean for example in-DB logic, or some specific stuff, then it's also confusing, because "business layer" is described as "includes your products, pricing, stock, and general information surrounding your commercial offering", so "processing" and "advanced calculations" are mentioned only in the "persistence layer". That's why I asked, because or there is some specific case which I don't know / Spryker is changing approach, or this section of the documentation is misleading.

Chemaclass

Totally agree with you. Good point.

Valerii Trots

Hi Przemysław, this indeed sounds like a mistake and is now being discussed internally.