In Yii controller

[MitchT]

I'm newbie and learning Yii framework where Im designing first small application and got stuck on this position where I need your attention as your guys are guru.I have a 'City name' list on main layout in header section where a user select a 'City' then I would like to pass that City_id to 'PostController' and search for that city post and display the last Postonly.Any idea how to handle this.I look forward to hear from you guys soon and will appreciated an early reply.Khan