In doing internet searches trying to learn how to incorporated ajax into web pages generated by the yii framework I noticed that there seems to be a lot of confusion. I worry that too-clever hacks will be broken in upgrades of the framework.
If you're working a lot with extensions you often stumble upon problems, when you want to include them into your custom web application, like hardcoded or absolute path aliases or classes extended from core application components, which implement addiditonal features.
Generally we need to show one or more fields from a model that is related to another model used in CGridView.
For our case we will use two related models, which explain how to use model "A" fields in a CGridView that used model "B".