Where to store your classes in yii1?

Question

Yii

There is a folder of models, and these models provide us with access to the database as objects. I want to create my own class that will manipulate them. Where to store such a class?

Answer 1

in service?

Answer 2

Yes, no matter where, the organization of the project folders and the choice in which folder what to store depends solely on the existing project structure.