Problem With Crud

Hi All

I am working with a CRUD that requires input from three tables

Zone,Division and Site

To create this I first generated a crud with Gii and then customised it according to my need.

Right now I am able to create a new entry but when I go to the admin page from where I can manage the crud then there are only fields available from one table.

Can anyone tell me what all should I do to have fields from all the desired tables.

I tried to add few fields in the model but as expected it is giving me an error as those fields are not present in the table.

Can anyone suggest me how should I proceed??


Maybe if you wrote down the relationship between those tables?