Chapter 5. Business Logic

Business logic (also known as the domain logic) is all about the way business wants to handle the data. With this definition, it seems that the Model layer in a Model-View-Controller (MVC) framework could be one of the places to deal with business logic. Forget about MVC because Symfony is more like Request/Response in nature. So, it is your responsibility to create the Model if you need and it is totally up to you how to organize the business logic in your project.

Note

There is a debate about Symfony being an MVC framework. Some developers believe that because entities in Symfony are a data-persistence layer and not a model layer, this makes Symfony a VC framework and not an MVC framework. Sure, you can create Models yourself, but that is where the debate comes from. You have to CREATE them. They DON'T EXIST by default. My thoughts on this? Don't let the terminology trick you. Read about the debates and opposing ideas as much as you can, but...