I think many developers do that in Presentation layer, specifically in ViewModel/Presenter/Controller (not in Activity/Fragment/View!). My approach is to put that logic in Domain layer. Why? Is it presentation logic or domain logic? Presentation logic is something you decide “mapping render model”, “format of render model”, “how to render”, “what color, what size, which text”, … Read more
For building reports you can convert business logic in any programming language. And use database data for generating reports. Against of business logic stored in database I place a high value on the power of expression, and I don’t find the SQL space to be all that expressive. Use the best tools you have on … Read more
@Controller classes serve as C from MVC. Note that the real controller in Spring MVC is DispatcherServlet that will use the specific @Controller class to handle the URL request. @Service classes should serve for your service layer. Here you should put your business logic. @Repository classes should serve for your data access layer. Here you … Read more
For the same reason that the end of a gun which the bullets come out of is called the “business end”. It’s where the primary action happens.
First off, your Model folder in your Asp.Net MVC project should be used for ViewModels. These are the models that your Controllers send to your Views. They should be highly optimized for the View, meaning only the properties needed for the view, and nothing else. What you are taking about, Domain Models, are the same … Read more
It is more about design patterns rather than Django Rest Framework. Here are some tips: Providing interfaces using REST should not involve any specific code related to data manipulation or business logic. Using an MVC approach does not mean that you shouldn’t layer your application. You should be able to test your business logic without … Read more
This is easy Every entity in the system, representing the human-world object which the system is expected to interact with is a business object. The human-world logic in the system around manipulating business objects is a business logic. This is opposed to the objects and logic being part of the implementation details. For example in … Read more
Maintainability of your code is always a big concern when determining where business logic should go. Integrated debugging tools and more powerful IDEs generally make maintaining middle tier code easier than the same code in a stored procedure. Unless there is a real reason otherwise, you should start with business logic in your middle tier/application … Read more
Against stored procedures: business logic in programming space I place a high value on the power of expression, and I don’t find the SQL space to be all that expressive. Use the best tools you have on hand for the most appropriate tasks. Fiddling with logic and higher order concepts is best done at the … Read more
Say you write a system which solves a business need for a customer. The sum of all your code is the application logic, or system architecture – basically the entirety of the system you’re building. The business logic is the code subset which models and drives actual business processes. “What happens when an order for … Read more