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MoneyType.php
133 lines (110 loc) · 4.4 KB
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MoneyType.php
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<?php
/*
* This file is part of the Symfony package.
*
* (c) Fabien Potencier <fabien@symfony.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Symfony\Component\Form\Extension\Core\Type;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Exception\LogicException;
use Symfony\Component\Form\Extension\Core\DataTransformer\MoneyToLocalizedStringTransformer;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\Form\FormInterface;
use Symfony\Component\Form\FormView;
use Symfony\Component\OptionsResolver\Options;
use Symfony\Component\OptionsResolver\OptionsResolver;
class MoneyType extends AbstractType
{
protected static array $patterns = [];
public function buildForm(FormBuilderInterface $builder, array $options): void
{
// Values used in HTML5 number inputs should be formatted as in "1234.5", ie. 'en' format without grouping,
// according to https://www.w3.org/TR/html51/sec-forms.html#date-time-and-number-formats
$builder
->addViewTransformer(new MoneyToLocalizedStringTransformer(
$options['scale'],
$options['grouping'],
$options['rounding_mode'],
$options['divisor'],
$options['html5'] ? 'en' : null
))
;
}
public function buildView(FormView $view, FormInterface $form, array $options): void
{
$view->vars['money_pattern'] = self::getPattern($options['currency']);
if ($options['html5']) {
$view->vars['type'] = 'number';
}
}
public function configureOptions(OptionsResolver $resolver): void
{
$resolver->setDefaults([
'scale' => 2,
'grouping' => false,
'rounding_mode' => \NumberFormatter::ROUND_HALFUP,
'divisor' => 1,
'currency' => 'EUR',
'compound' => false,
'html5' => false,
'invalid_message' => 'Please enter a valid money amount.',
]);
$resolver->setAllowedValues('rounding_mode', [
\NumberFormatter::ROUND_FLOOR,
\NumberFormatter::ROUND_DOWN,
\NumberFormatter::ROUND_HALFDOWN,
\NumberFormatter::ROUND_HALFEVEN,
\NumberFormatter::ROUND_HALFUP,
\NumberFormatter::ROUND_UP,
\NumberFormatter::ROUND_CEILING,
]);
$resolver->setAllowedTypes('scale', 'int');
$resolver->setAllowedTypes('html5', 'bool');
$resolver->setNormalizer('grouping', static function (Options $options, $value) {
if ($value && $options['html5']) {
throw new LogicException('Cannot use the "grouping" option when the "html5" option is enabled.');
}
return $value;
});
}
public function getBlockPrefix(): string
{
return 'money';
}
/**
* Returns the pattern for this locale in UTF-8.
*
* The pattern contains the placeholder "{{ widget }}" where the HTML tag should
* be inserted
*/
protected static function getPattern(?string $currency): string
{
if (!$currency) {
return '{{ widget }}';
}
$locale = \Locale::getDefault();
if (!isset(self::$patterns[$locale])) {
self::$patterns[$locale] = [];
}
if (!isset(self::$patterns[$locale][$currency])) {
$format = new \NumberFormatter($locale, \NumberFormatter::CURRENCY);
$pattern = $format->formatCurrency('123', $currency);
// the spacings between currency symbol and number are ignored, because
// a single space leads to better readability in combination with input
// fields
// the regex also considers non-break spaces (0xC2 or 0xA0 in UTF-8)
preg_match('/^([^\s\xc2\xa0]*)[\s\xc2\xa0]*123(?:[,.]0+)?[\s\xc2\xa0]*([^\s\xc2\xa0]*)$/u', $pattern, $matches);
if (!empty($matches[1])) {
self::$patterns[$locale][$currency] = $matches[1].' {{ widget }}';
} elseif (!empty($matches[2])) {
self::$patterns[$locale][$currency] = '{{ widget }} '.$matches[2];
} else {
self::$patterns[$locale][$currency] = '{{ widget }}';
}
}
return self::$patterns[$locale][$currency];
}
}