CHtml::ajaxLink(), CHtml::ajaxSubmitButton() and similar methods are great, but if they are located inside a portion of the page that is already loaded via ajax something bad will happen, something you may even not notice if you are not using tools like firebugs: the sent ajax requests will multiply themselves.
I discovered Twitter Bootstrap almost two years ago. After trying it out for a while I fell in love with it. It didn't take long before I realized that it would be great to write an extension that allowed developers to start using Bootstrap in their Yii projects. One night I sat down and started writing what later became my now popular bootstrap extension. Now that the extension is quite widely used in the community I felt that it was time to write about how to use Bootstrap to its full potential. If you use the Bootstrap CSS files you're really missing out on some great features. After reading this article you'll be able to take full advantage of Bootstrap using LESS.
CFormatter is one of Yii's core components and used to format values displayed in widgets like CGridView or CDetailView. All classic formats like numbers, text, urls or datetime are supported but you may have to use a formatting rule that isn't built in. Let's say we want to display arrays of strings (like tags associated with a product model). When using CDetailView we would usually make use of PHPs implode function to create a simple string value of all values in the $product->tags array.
A simple and effective way to keep track what your users are doing within your application is to log their activities related to database modifications. You can log whenever a record was inserted, changed or deleted, and also when and by which user this was done. For a CActiveRecord Model you could use a behavior for this purpose. This way you will be able to add log functionality to ActiveRecords very easily.