我在一个trick扩展中使用intl组件来获取货币的符号。
很简单，因为这里已经很好地解释了。
但我想做的是根据货币/当地货币来制定价格。
在intl组件（NumberFormatter类）中确实有一个方法formatCurrency
<?php
namespace SE'AppBundle'Twig;
use Doctrine'ORM'EntityManager;
use Symfony'Component'HttpFoundation'RequestStack;
use Symfony'Component'Intl'Intl;
class PriceExtension extends 'Twig_Extension
{
private $em;
private $requestStack;
public function __construct(EntityManager $em, RequestStack $requestStack)
{
$this->em = $em;
$this->requestStack = $requestStack;
}
public function getFilters()
{
return array(
new 'Twig_SimpleFilter('price', array($this, 'priceFilter')),
);
}
public function priceFilter($price)
{
$request = $this->requestStack->getCurrentRequest();
$currency_code = $request->cookies->get('currency');
$exchange_rate = $this->em->getRepository('ApiBundle:ExchangeRates')->findOneBy(array('code' => $currency_code));
$price = $price*$exchange_rate->getRate();
// Get the currency symbol
// $symbol = Intl::getCurrencyBundle()->getCurrencySymbol($currency_code);
// $price = $symbol.$price;
// Undefined formatCurrency method
$price = Intl::getCurrencyBundle()->formatCurrency($price, $currency_code);
return $price;
}
public function getName()
{
return 'price_extension';
}
}
我怎样才能使用formatCurrency方法？
Whole Intl Component只是在没有安装intl扩展的情况下的替换层。
所以你的代码应该看起来像：
<?php
namespace SE'AppBundle'Twig;
use Doctrine'ORM'EntityManager;
use Symfony'Component'HttpFoundation'RequestStack;
use Symfony'Component'Intl'NumberFormatter'NumberFormatter;
class PriceExtension extends 'Twig_Extension
{
private $em;
private $requestStack;
public function __construct(EntityManager $em, RequestStack $requestStack)
{
$this->em = $em;
$this->requestStack = $requestStack;
}
public function getFilters()
{
return array(
new 'Twig_SimpleFilter('price', array($this, 'priceFilter')),
);
}
public function priceFilter($price)
{
$request = $this->requestStack->getCurrentRequest();
$currency_code = $request->cookies->get('currency');
$exchange_rate = $this->em->getRepository('ApiBundle:ExchangeRates')->findOneBy([
'code' => $currency_code
]);
$price = $price*$exchange_rate->getRate();
if(false === extension_loaded('intl')) {
$formatter = new NumberFormatter('en', NumberFormatter::CURRENCY);
} else {
$formatter = new 'NumberFormatter(
$request->getLocale(),
'NumberFormatter::CURRENCY
);
}
return $formatter->formatCurrency($price, $currency_code);
}
public function getName()
{
return 'price_extension';
}
}