public static function Address::valueCallback in Address 8

Determines how user input is mapped to an element's #value property.

Parameters

array $element: An associative array containing the properties of the element.

mixed $input: The incoming input to populate the form element. If this is FALSE, the element's default value should be returned.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

Return value

mixed The value to assign to the element.

Overrides FormElement::valueCallback

File

src/Element/Address.php, line 116

Class

Address

Provides an address form element.

Namespace

Drupal\address\Element

Code

public static function valueCallback(&$element, $input, FormStateInterface $form_state) {

  // Ensure both the default value and the input have all keys set.
  // Preselect the default country to ensure it's present in the value.
  $element['#default_value'] = (array) $element['#default_value'];
  $element['#default_value'] = self::applyDefaults($element['#default_value']);
  if (empty($element['#default_value']['country_code']) && $element['#required']) {
    $element['#default_value']['country_code'] = Country::getDefaultCountry($element['#available_countries']);
  }

  // Any input with a NULL or missing country_code is considered invalid.
  // Even if the element is optional and no country is selected, the
  // country_code would be an empty string, not NULL.
  if (is_array($input) && !isset($input['country_code'])) {
    $input = NULL;
  }
  if (is_array($input)) {
    $input = self::applyDefaults($input);
    if (empty($input['country_code']) && $element['#required']) {
      $input['country_code'] = $element['#default_value']['country_code'];
    }
  }
  return is_array($input) ? $input : $element['#default_value'];
}