Select2 & Chosen Ext

Hi everybody;

select2 and chosen are great ext for web applications. I want to use anyone in my project, but i can’t find anywhere an application which uses select2 or chosen with Yii forms. I want to use select 2 or chosen ext like this.














For above code, my questions :

1- How to get my data from model like above data variable.

2- When i post the form, how can i get all form variables which comes from select2 or chosen.

3- When i select a value from select2 or chosen, I want to view user_name and i want to view user_id when i post.

4- Have you ever seen select2 or chosen example or application usage with Yii forms.

5- Sorry my bad english. Thank you for everything :)