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Often used scopes to define criteria in our models. This is a very useful feature as it ensures that in any part of application applying the criteria defined by the scope when called it.

For a long time I have struggled to find a suitable tool for doing server tasks such as compiling LESS files, concatenating and minifying of JavaScript files and copying the minified JavaScript files. While most of these tasks can be done with Yii extensions I would still not recommend using them because it requires you to include these extensions in your project, and therefore also deploying them in your production environment.

It seems many people is trying to make Wordpress and Yii work together. I got stuck with the same problem, but now I think I have achieved doing it, after a lot of hard thinking and many work hours spent.

With Yii you can use one CActiveForm for collecting data for two or more models with ajax validation and client validation.

The popular CListView and CGridView widgets each take a data provider and iterate over each data object produced, calling the user's code to render each row one at a time, and most are familiar with the use of the $data variable to represent the current model object or array.

If you show a model (with a lot of attributes) partially in a CGridView, it can be helpful when the user can take a quick look at the full record with all attributes without displaying the view as a page and afterwards returning back to the gridview.

There are many ways to automate the setting of timestamps in yii ActiveRecord models. Three are presented here:

Here is a step by step To-Do list for Yii beginners. The list is an advice of what tutorials and documentation you can walk through to get a full understanding of the Yii Framework. These can be a help to learn Yii.

Sometimes the right place to store application data is in a join table. For example, movie viewers either like or don’t like the movies they watched.

These features provide endless possibilities and unbelievable flexibility, but as current documentation does not give more than a few examples, it might be difficult to fully understand their internals and requirements.