Yii core messages refer to static text strings in the core Yii framework code which are meant to be displayed to end-users (e.g. core exception messages, default validation error messages). Customization of these core messages is needed in two circumstances:
CButtonColumn in CGridView can be customised to include user built buttons. To learn a great deal about including custom buttons, read this excellent wiki.
This tutorial will show how to call an action from one custom button using AJAX instead of regular GET calls.
Well I finally had some time and tinkered a bit with the notion of integrating wordpress and Yii. Now for me I wanted to use Yii as a framework to develop wordpress plugins. Using some tips from imasia Article I was able to do a simple integration of yii as a wordpress plugin. The integration was very basic and i just used yii with its default installation site. I don;t know how it will really react with CRUD application as yet but it was fairly easy to integrate after reading the article...