YII how to handle custom 404 error page along with other error pages

Question

I want to display 404 error page for that i have made error404.php file in my protected/view/system folder.

By default i have Sitecontroller and it contained error acti

Answer 1

Whenever errors occur, the action error in siteController is called. you can customize the error route in that action, you can do something like this:

if(404==Yii::app()->errorHandler->error->code){
     //go to custome error page
else
   //code default error.php