/**
* {@inheritdoc}
*/
public function viewElements(FieldItemListInterface $items, $langcode)
{
$currency_codes = [];
foreach ($items as $delta => $item) {
$currency_codes[] = $item->currency_code;
}
$currencies = $this->currencyStorage->loadMultiple($currency_codes);
$elements = [];
foreach ($items as $delta => $item) {
$currency = $currencies[$item->currency_code];
$elements[$delta] = ['#markup' => $this->numberFormatter->formatCurrency($item->amount, $currency), '#cache' => ['contexts' => ['languages:' . LanguageInterface::TYPE_INTERFACE, 'country']]];
}
return $elements;
}
/**
* {@inheritdoc}
*/
public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state)
{
// Load currencies.
$currencies = $this->currencyStorage->loadMultiple();
$currency_codes = array_keys($currencies);
// Stop rendering if there are no currencies available.
if (empty($currency_codes)) {
return $element;
}
$amount = $items[$delta]->amount;
if (!empty($amount)) {
// Convert the stored amount to the local format. For example, "9.99"
// becomes "9,99" in many locales. This also strips any extra zeroes,
// as configured via $this->numberFormatter->setMinimumFractionDigits().
$amount = $this->numberFormatter->format($amount);
}
$element['#attached']['library'][] = 'commerce_price/admin';
$element['#element_validate'] = [[get_class($this), 'validateElement']];
$element['amount'] = ['#type' => 'textfield', '#title' => $element['#title'], '#default_value' => $amount, '#required' => $element['#required'], '#size' => 10, '#maxlength' => 255, '#placeholder' => $this->numberFormatter->format('9.99')];
if (count($currency_codes) == 1) {
$last_visible_element = 'amount';
$currency_code = reset($currency_codes);
$element['amount']['#field_suffix'] = $currency_code;
$element['currency_code'] = ['#type' => 'value', '#value' => $currency_code];
} else {
$last_visible_element = 'currency_code';
$element['currency_code'] = ['#type' => 'select', '#title' => $this->t('Currency'), '#default_value' => $items[$delta]->currency_code, '#options' => array_combine($currency_codes, $currency_codes), '#title_display' => 'invisible', '#field_suffix' => ''];
}
// Add the help text if specified.
// Replicates the commerce_field_widget_form_alter() logic because
// the copied help text can't be reached by the alter.
$base_field = $this->fieldDefinition instanceof BaseFieldDefinition;
$has_override = $this->fieldDefinition->getSetting('display_description');
$hide_description = $base_field && !$has_override;
if (!empty($element['#description']) && !$hide_description) {
$element[$last_visible_element]['#field_suffix'] .= '<div class="description">' . $element['#description'] . '</div>';
}
return $element;
}