The Applications components directory is autoloaded automatically, so you shouldn't need to change your config. I'm not familiar with phpcassa but things to check include:-
- Is the filename identical to the classname?
- Does phpcassa include sub-classes? These won't be auto-loaded by default.
edit: Hi, try using Yii::registerAutoloader in your bootstrap. With Zend, I use the code like this:-
Yii::import('application.vendors.*');
require "Zend/Loader/Autoloader.php";
Yii::registerAutoloader(array('Zend_Loader_Autoloader', 'autoload'), true);