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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.

A lot of people have written posts on integrating Yii and WordPress. This article combines goncin's approach with an article I read about integrating Symfony and WordPress and applies it all to Yii and WordPress.

I build this simple PHP class (DialogBox.php at the bottom of this wiki) to help you in the dialog box usage on Yii applications. The goal is run any Yii actions into this dialog box and return the resulting value to the calling instance.

Delploying anything using joomla's framework is quite difficult. The framework don't provide a good MVC structure and the documentation is very poor.

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

If in your application you have to proceed to a complex SQL query that is not associated to a model, you will use CDbDataReader like it is described in the Yii documentation. An example could be

We all love the convenient gadget, namely jQuery UI Datepicker as an input element for date. Yii supports it as CJuiDatePicker. Let's see how to use it.

Let's say our table 'mug' has a column named 'color' of the type ENUM('red','green','blue'). We want to replace the textfield for the attribute color in the create and update forms of a 'mug' with a drop down list, which has the enum values as options. The main code was contributed by zaccaria in the forum (see this post).

From: http://lacot.org/ and me.

Before reading this article, you should first learn this How to setup RBAC with a php file