What is the correct way to modify a Yii model?

Question

Yii

Greetings. Previously, I created everything from scratch and did not attach any importance. But then there was a need to add an attribute to the Yii2 model. Tell me, plizz, how to do it correctly so that all connections are redefined? That is, I had product_id, product_name, and now I need to add another product_range. There isn't much written about this process anywhere.