currency-8.x-3.3/src/FormHelper.php

<?php

namespace Drupal\currency;

use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\StringTranslation\StringTranslationTrait;
use Drupal\Core\StringTranslation\TranslationInterface;

/**
 * Provides form helpers.
 */
class FormHelper implements FormHelperInterface {

  use StringTranslationTrait;

  /**
   * The currency storage.
   *
   * @var \Drupal\Core\Entity\EntityStorageInterface
   */
  protected $currencyStorage;

  /**
   * The currency locale storage.
   *
   * @var \Drupal\Core\Entity\EntityStorageInterface
   */
  protected $currencyLocaleStorage;

  /**
   * Constructs a new instance.
   *
   * @param \Drupal\Core\StringTranslation\TranslationInterface $string_translation
   *   The string translation service.
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager.
   */
  public function __construct(TranslationInterface $string_translation, EntityTypeManagerInterface $entity_type_manager) {
    $this->currencyStorage = $entity_type_manager->getStorage('currency');
    $this->currencyLocaleStorage = $entity_type_manager->getStorage('currency_locale');
    $this->stringTranslation = $string_translation;
  }

  /**
   * {@inheritdoc}
   */
  public function getCurrencyOptions(?array $currencies = NULL) {
    $options = [];
    /** @var \Drupal\currency\Entity\CurrencyInterface[] $currencies */
    if (is_null($currencies)) {
      $currencies = $this->currencyStorage->loadMultiple();
    }
    foreach ($currencies as $currency) {
      // Do not show disabled currencies.
      if ($currency->status()) {
        $options[$currency->id()] = $this->t('@currency_title (@currency_code)', [
          '@currency_title' => $currency->label(),
          '@currency_code' => $currency->id(),
        ]);
      }
    }
    natcasesort($options);

    return $options;
  }

  /**
   * {@inheritdoc}
   */
  public function getCurrencyLocaleOptions(?array $currency_locales = NULL) {
    $options = [];
    /** @var \Drupal\currency\Entity\CurrencyLocaleInterface[] $currency_locales */
    if (is_null($currency_locales)) {
      $currency_locales = $this->currencyLocaleStorage->loadMultiple();
    }
    foreach ($currency_locales as $currency_locale) {
      // Do not show disabled currency locales.
      if ($currency_locale->status()) {
        $options[$currency_locale->id()] = $currency_locale->label();
      }
    }
    natcasesort($options);

    return $options;
  }

}