Updating model without DB changes

I have this client that wants to have dynamic fields for each of his users.

this means that he might add a column like "languages" or "pets" at some point in time

in the future.

I want to be able to either enter this information to a serialized array (seems a bit of an overkill)

so the model wouldn’t need to be altered, or even better - give him some sort of a

really simple way to change the model without having him play with PHPmyadmin.

Is there any Model Management system of sorts?

thanks.

info:

Yii 1.1.7.r3135, MySQL DB

I believe that the extension yii-user provides a similar functionality.

And be welcome to the forum!

See the forum guidelines.