vendor/symfony/form/Symfony/Component/Form/Extension/Core/Type/MoneyType.php

   1 <?php
   2
   3 /*
   4  * This file is part of the Symfony package.
   5  *
   6  * (c) Fabien Potencier <fabien@symfony.com>
   7  *
   8  * For the full copyright and license information, please view the LICENSE
   9  * file that was distributed with this source code.
  10  */
  11
  12 namespace Symfony\Component\Form\Extension\Core\Type;
  13
  14 use Symfony\Component\Form\AbstractType;
  15 use Symfony\Component\Form\FormInterface;
  16 use Symfony\Component\Form\FormBuilderInterface;
  17 use Symfony\Component\Form\Extension\Core\DataTransformer\MoneyToLocalizedStringTransformer;
  18 use Symfony\Component\Form\FormView;
  19 use Symfony\Component\OptionsResolver\OptionsResolverInterface;
  20
  21 class MoneyType extends AbstractType
  22 {
  23     protected static $patterns = array();
  24
  25     /**
  26      * {@inheritdoc}
  27      */
  28     public function buildForm(FormBuilderInterface $builder, array $options)
  29     {
  30         $builder
  31             ->addViewTransformer(new MoneyToLocalizedStringTransformer(
  32                 $options['precision'],
  33                 $options['grouping'],
  34                 null,
  35                 $options['divisor']
  36             ))
  37         ;
  38     }
  39
  40     /**
  41      * {@inheritdoc}
  42      */
  43     public function buildView(FormView $view, FormInterface $form, array $options)
  44     {
  45         $view->vars['money_pattern'] = self::getPattern($options['currency']);
  46     }
  47
  48     /**
  49      * {@inheritdoc}
  50      */
  51     public function setDefaultOptions(OptionsResolverInterface $resolver)
  52     {
  53         $resolver->setDefaults(array(
  54             'precision' => 2,
  55             'grouping'  => false,
  56             'divisor'   => 1,
  57             'currency'  => 'EUR',
  58             'compound'  => false,
  59         ));
  60     }
  61
  62     /**
  63      * {@inheritdoc}
  64      */
  65     public function getName()
  66     {
  67         return 'money';
  68     }
  69
  70     /**
  71      * Returns the pattern for this locale
  72      *
  73      * The pattern contains the placeholder "{{ widget }}" where the HTML tag should
  74      * be inserted
  75      */
  76     protected static function getPattern($currency)
  77     {
  78         if (!$currency) {
  79             return '{{ widget }}';
  80         }
  81
  82         $locale = \Locale::getDefault();
  83
  84         if (!isset(self::$patterns[$locale])) {
  85             self::$patterns[$locale] = array();
  86         }
  87
  88         if (!isset(self::$patterns[$locale][$currency])) {
  89             $format = new \NumberFormatter($locale, \NumberFormatter::CURRENCY);
  90             $pattern = $format->formatCurrency('123', $currency);
  91
  92             // the spacings between currency symbol and number are ignored, because
  93             // a single space leads to better readability in combination with input
  94             // fields
  95
  96             // the regex also considers non-break spaces (0xC2 or 0xA0 in UTF-8)
  97
  98             preg_match('/^([^\s\xc2\xa0]*)[\s\xc2\xa0]*123(?:[,.]0+)?[\s\xc2\xa0]*([^\s\xc2\xa0]*)$/u', $pattern, $matches);
  99
 100             if (!empty($matches[1])) {
 101                 self::$patterns[$locale][$currency] = $matches[1].' {{ widget }}';
 102             } elseif (!empty($matches[2])) {
 103                 self::$patterns[$locale][$currency] = '{{ widget }} '.$matches[2];
 104             } else {
 105                 self::$patterns[$locale][$currency] = '{{ widget }}';
 106             }
 107         }
 108
 109         return self::$patterns[$locale][$currency];
 110     }
 111 }