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This is a reference to be used for Model rule validation and is compiled from the Yii documentation and code. The purpose is to have all the information gathered in one place instead of scattered. This reference is not an intro. See The Definitive Guide to Yii, Declaring Validation Rules for a tutorial.

CGridView is a one of most flexible widgets in Yii and example its flexibility is CButtonColumn used to build buttons for steering model in each grid row. Here in this how-to we will explain ways user can customize CButtonColumn to flexibly fit it to its needs.

warning: While this security guide tries to be quite complete, is not exhaustive. If security matters for you, you ought to check several other references.

Some times the core validation rules provided by Yii won't satisfy all your needs, so you'll need to create your very own validation rule.

This article will explain how to create a REST API with the Yii framework.

Something a good application cant miss is documentation, and what would be better than some nice formatted HTML documentation that can be auto-generated from your code, we know several tools that already do this like phpDocumentor, but today we are introducing Yii Docs Generator which is a modification of the code that Yii itself uses to generate its documentation, thank phpnode for this wonderful work.

I have had to do this a couple of times now so I figured I would share it with the community. I am going to keep this short because I really hope that you are familiar with jQueryUI's Sortable class before starting this tutorial.

"The documentation for CMultiFileUpload isn't clear!"

Original source code and idea are from: PHP, PDO & Nested Transactions.

Relational databases do not support inheritance so if we need to represent it, we have to somehow store meta info while keeping performance by minimizing JOINs. One way to solve this problem is using single table inheritance. All fields for the whole class tree are stored in a single table. Class name is stored in the type field of the same table.