CurrencyDAO.inc.php

<?php
 
import('lib.pkp.classes.currency.Currency');
 
class CurrencyDAO extends DAO {
   public function __construct() {
      // Parent constructor intentionally not called
   }
 
   public function getCurrencyByAlphaCode($codeAlpha) {
      $isoCodes = new \Sokil\IsoCodes\IsoCodesFactory();
      $currency = $isoCodes->getCurrencies()->getByLetterCode($codeAlpha);
      return $this->_fromIsoCodeFactoryObject($currency);
   }
 
   public function getCurrencies() {
      $isoCodes = new \Sokil\IsoCodes\IsoCodesFactory();
      return array_map(function($currency) {
         return $this->_fromIsoCodeFactoryObject($currency);
      }, iterator_to_array($isoCodes->getCurrencies()));
   }
 
   protected function _fromIsoCodeFactoryObject($currency) {
      $currencyDataObject = new Currency();
      $currencyDataObject->setCodeAlpha($currency->getLetterCode());
      $currencyDataObject->setName($currency->getLocalName());
      $currencyDataObject->setCodeNumeric($currency->getNumericCode());
      return $currencyDataObject;
   }
}