What's a good practice to create "your" functions in Rails?

Question

Ruby on Rails

Hi
I'm migrating from java to rails here and I don't understand the organizational issue. Well, earlier, in java, if I needed some kind of dedicated logic, then a package was created and everything was stored there. By "everything" I mean beans, some utils, maybe separate classes for working with other objects of other classes.
In rails, on the other hand (possibly only at first), I got the impression that everything is rigidly tied to MVC, where you describe some kind of logic either in the model or in the controller. But where to store your classes and everything that usually lies in the package? What is the best practice in this case?
Thanks in advance to those in the know.

Answer 1

In addition to the lib directory and your gem mentioned by colleagues, you can separate classes into subdirectories in app. Unlike lib, all app subdirectories are autoloaded by default, so you don't need to write require manually. Well, in terms of meaning - in app they place something that relates directly to the current application, and in lib - either code from "third-party manufacturers" or their own code that is more independent of the current application with an eye to highlighting and using it in other projects.

Answer 2

Take out your classes in a separate folder in / lib and include the folder in autoload
Or in gem if the code is a kind of extension of the framework.

Answer 3

the architecture in the rails out of the box is primitive.
I recommend looking at
https://github.com/drapergem/draper
https://github.com/apotonick/cells
https://github.com/collectiveidea/interactor
and also look at how modules are arranged in ruby.
it also happens that the project is divided into several applications