<?php
/**
 * Populate form element's values from Dictionary
 *
 * $Id$
 *
 * @author gERD Schaufelberger <gerd@php-tools.net>
 * @license PHP License
 * @package WB
 * @subpackage db
 */

WBClass::load('WBDatasource_FormAttribute'
                , 'WBException_Call'
                );

/**
 * Populate form element's values from Dictionary
 * 
 * Use dictionary lists to fill values
 *
 * @version 0.1.0
 * @package WB
 * @subpackage db
 */
class WBDatasource_FormAttribute_Dictionary extends WBDatasource_FormAttribute
{
    /**
     * configuration parameter
     * @var array
     */
    protected $config   =   array(
                                'dict'  =>  'Country'
                            );
    
    /**
     * dictionary
     * @var WBDictionary
     */
    protected $dict;

    /**
     * get attribute's value
     * 
     * Use dicktionary to fetch list of values
     * 
     * @param mixed $current actual attribute value
     * @return array 
     */
    protected function getAttributeValue($current)
    {
        if (!is_array($current)) {
            $current =   array();
        }
                
        $this->dict =   WBClass::create('WBDictionary_' . $this->config['dict']);
        try {
            $list =   $this->dict->getList();
        } catch(WBException_Call $e) {
            return $current;
        }

        if (empty($list)) {
            return $current;
        }
        
        // append list        
        foreach ($list as $v => $l) {
            $current[]   =   array(
                                'value'=> $v, 
                                'label' => $l
                        );
        }
        return $current;
    }    
}
?>