public function CurrencyAmount::elementValidate in Currency 8.3

Implements form #element_validate callback.

File

src/Element/CurrencyAmount.php, line 178

Class

CurrencyAmount

Provides an element to collect amounts of money and convert them to strings.

Namespace

Drupal\currency\Element

Code

public function elementValidate($element, FormStateInterface $form_state, array $form) {
  $values = $form_state
    ->getValues();
  $value = NestedArray::getValue($values, $element['#parents']);
  $amount = $value['amount'];
  $currency_code = $value['currency_code'];

  // Confirm that the amount is numeric.
  $amount = $this->input
    ->parseAmount($amount);
  if ($amount === FALSE) {
    $form_state
      ->setError($element['amount'], $this
      ->t('%title is not numeric.', [
      '%title' => $element['#title'],
    ]));
  }

  // Confirm the amount lies within the allowed range.

  /** @var \Drupal\currency\Entity\CurrencyInterface $currency */
  $currency = $this->currencyStorage
    ->load($currency_code);
  if ($element['#minimum_amount'] !== FALSE && bccomp($element['#minimum_amount'], $amount, 6) > 0) {
    $form_state
      ->setError($element['amount'], $this
      ->t('The minimum amount is @amount.', [
      '@amount' => $currency
        ->formatAmount($element['#minimum_amount']),
    ]));
  }
  elseif ($element['#maximum_amount'] !== FALSE && bccomp($amount, $element['#maximum_amount'], 6) > 0) {
    $form_state
      ->setError($element['amount'], $this
      ->t('The maximum amount is @amount.', [
      '@amount' => $currency
        ->formatAmount($element['#maximum_amount']),
    ]));
  }

  // The amount in $form_state is a human-readable, optionally localized
  // string, which cannot be used by other code. $amount is a numeric string
  // after running it through \Drupal::service('currency.input')->parseAmount().
  $form_state
    ->setValueForElement($element, [
    'amount' => $amount,
    'currency_code' => $currency_code,
  ]);
}