How to transfer a module?

Question

Yii

1. I create a module in the project. The new files appear in the modules parent directory and in web/app. Those. if i copy these folders to another yii project will they work the same? I know about the module declaration in web.php.
2. When should you create modules, and when should you not put them in modules? And in general, are there any "troubles" when working with modules?

Answer 1

1. Yes, there will be
2. A module is a self-sufficient unit that is convenient to transfer from project to project, but there are a number of difficulties with them, connected precisely with the lack of links with the application.
Therefore, modules are needed only when they are completely separated from the rest of the logic. Their functionality is used, but they do not touch other components, models, etc.