<?php
class UserForm extends CFormModel
{
	public $firstName;
	public $lastName;
	public $fullName;

	public function rules()
	{
		return array(
			// First name and last name are required
			array('firstName, lastName', 'required'),
		);
	}

	function afterValidate()
	{
		// If this method was called then
		// the model is already filled
		// with data and data is valid
		// so we can use it safely:
		$this->fullName = $this->firstName.' '.$this->lastName;

		// It's important to call parent class method
		// so all other event handlers are called
		return parent::afterValidate();
	}
}