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<?php
namespace Drupal\currency\Form;
use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
use Drupal\Core\Entity\EntityStorageInterface;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\StringTranslation\TranslationInterface;
use Drupal\currency\Entity\Currency as CurrencyEntity;
use Drupal\currency\FormHelperInterface;
use Drupal\currency\Plugin\Currency\ExchangeRateProvider\ExchangeRateProviderManagerInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
class FixedRatesForm extends FormBase implements ContainerInjectionInterface {
protected $currencyStorage;
protected $currencyExchangeRateProviderManager;
protected $formHelper;
public function __construct(ConfigFactoryInterface $configFactory, TranslationInterface $string_translation, EntityStorageInterface $currency_storage, ExchangeRateProviderManagerInterface $currency_exchange_rate_provider_manager, FormHelperInterface $form_helper) {
$this
->setConfigFactory($configFactory);
$this->currencyStorage = $currency_storage;
$this->currencyExchangeRateProviderManager = $currency_exchange_rate_provider_manager;
$this->formHelper = $form_helper;
$this->stringTranslation = $string_translation;
}
public static function create(ContainerInterface $container) {
$entity_type_manager = $container
->get('entity_type.manager');
return new static($container
->get('config.factory'), $container
->get('string_translation'), $entity_type_manager
->getStorage('currency'), $container
->get('plugin.manager.currency.exchange_rate_provider'), $container
->get('currency.form_helper'));
}
public function getFormId() {
return 'currency_exchange_rate_provider_fixed_rates';
}
public function buildForm(array $form, FormStateInterface $form_state, $currency_code_from = 'XXX', $currency_code_to = 'XXX') {
$plugin = $this->currencyExchangeRateProviderManager
->createInstance('currency_fixed_rates');
$rate = $plugin
->load($currency_code_from, $currency_code_to);
$options = $this->formHelper
->getCurrencyOptions();
unset($options['XXX']);
$form['currency_code_from'] = array(
'#default_value' => $currency_code_from,
'#disabled' => !is_null($rate),
'#empty_value' => '',
'#options' => $options,
'#required' => TRUE,
'#title' => $this
->t('Source currency'),
'#type' => 'select',
);
$form['currency_code_to'] = array(
'#default_value' => $currency_code_to,
'#disabled' => !is_null($rate),
'#empty_value' => '',
'#options' => $options,
'#required' => TRUE,
'#title' => $this
->t('Destination currency'),
'#type' => 'select',
);
$form['rate'] = array(
'#limit_currency_codes' => array(
$currency_code_to,
),
'#default_value' => array(
'amount' => !is_null($rate) ? $rate
->getRate() : NULL,
'currency_code' => $currency_code_to,
),
'#required' => TRUE,
'#title' => $this
->t('Exchange rate'),
'#type' => 'currency_amount',
);
$form['actions'] = array(
'#type' => 'actions',
);
$form['actions']['save'] = array(
'#button_type' => 'primary',
'#name' => 'save',
'#type' => 'submit',
'#value' => $this
->t('Save'),
);
if (!is_null($rate)) {
$form['actions']['delete'] = array(
'#button_type' => 'danger',
'#limit_validation_errors' => array(
array(
'currency_code_from',
),
array(
'currency_code_to',
),
),
'#name' => 'delete',
'#type' => 'submit',
'#value' => $this
->t('Delete'),
);
}
return $form;
}
public function validateForm(array &$form, FormStateInterface $form_state) {
}
public function submitForm(array &$form, FormStateInterface $form_state) {
$plugin = $this->currencyExchangeRateProviderManager
->createInstance('currency_fixed_rates');
$values = $form_state
->getValues();
$currency_code_from = $values['currency_code_from'];
$currency_code_to = $values['currency_code_to'];
$currency_from = $this->currencyStorage
->load($currency_code_from);
$currency_to = $this->currencyStorage
->load($currency_code_to);
$triggering_element = $form_state
->getTriggeringElement();
switch ($triggering_element['#name']) {
case 'save':
$plugin
->save($currency_code_from, $currency_code_to, $values['rate']['amount']);
$this
->messenger()
->addMessage($this
->t('The exchange rate for @currency_title_from to @currency_title_to has been saved.', array(
'@currency_title_from' => $currency_from
->label(),
'@currency_title_to' => $currency_to
->label(),
)));
break;
case 'delete':
$plugin
->delete($currency_code_from, $currency_code_to);
$this
->messenger()
->addMessage($this
->t('The exchange rate for @currency_title_from to @currency_title_to has been deleted.', array(
'@currency_title_from' => $currency_from
->label(),
'@currency_title_to' => $currency_to
->label(),
)));
break;
}
$form_state
->setRedirect('currency.exchange_rate_provider.fixed_rates.overview');
}
}