CGridView is a one of most flexible widgets in Yii and example its flexibility is CButtonColumn used to build buttons for steering model in each grid row. Here in this how-to we will explain ways user can customize CButtonColumn to flexibly fit it to its needs.
The customary configuration of a Yii application includes just a single database section in the protected/config/main.php file, but it's easy to extend this to support more than one, tying each Model to one of the databases.
In this cookbook I will attempt to explain how to use the lightweight version of Role-Based Access Control using a php file. This version does not use database but a php file and is controlled by CPhpAuthManager class.
I (www.jamesbarnsley.com) found that when using the Yii Bootstrap tabs component you will sometimes want to direct the user to a specific tab and not necessarily the first tab. Yii Bootstrap already provides the "active" variable so you can define whether the tab is the active tab or not in PHP. I generally find though that a PHP solution to this problem is rather cumbersome as every tab component will need the PHP code inserted or you will have to extend the tab component somehow to do it.
There are several methods and techniques that come handy in the case you need to call an external resource periodically or if you are waiting for a server push, but I present here an easy and straightforward one using HTML5's Server-Sent Events (SSE).