Yii2 Save data?

Question

Yii

Hello.
I have a catalog table with the following fields: id_catalog, catalog_name, catalog_photo, catalog_description.
I did CRUD of this table - everything is fine.
Only I need to change the catalog_name in another table when adding / editing / deleting.
Interested in what file and in what function can I get id_catalog and catatalog_name and where is it better to do CRUD with this data for another table?
Thanks in advance.