How to correctly use frequently used pieces of code in Yii?

Question

Yii

Hello! During the development of the project, it became necessary to frequently use the list of goods. Since information is collected in the controller and the whole thing is transferred to the mind, after which the page itself is obtained.
But I have several such pages, the question is how to make some kind of universal way to call the product list. So that I can call this list anywhere and it is successfully displayed.
I would not mind hearing a few options, if any. Thank you!

Answer 1

What's wrong with widgets (or portlets)?

Answer 2

Widgets, data providers and their analogues.