public function RegistrantsElementUtility::getArity in RNG - Events and Registrations 8

Get form state for for_arity.

File

src/RegistrantsElementUtility.php, line 168

Class

RegistrantsElementUtility

Namespace

Drupal\rng

Code

public function getArity() {
  $arity = $this->formState
    ->get(array_merge($this->element['#parents'], [
    'for_arity',
  ]));
  if ($arity === NULL) {
    $values = NestedArray::getValue($this->formState
      ->getUserInput(), $this->element['#parents']);
    if (isset($values['for_arity'])) {
      $arity = $values['for_arity'];
    }
    else {

      // Default.
      $minimum = $this->element['#registrants_minimum'];
      $maximum = $this->element['#registrants_maximum'];
      $count = count($this->element['#value']);
      if ($minimum && $minimum > 1) {
        $arity = 'multiple';
      }
      else {
        if ($maximum && $maximum == 1) {
          $arity = 'single';
        }
        else {
          $arity = $count > 1 ? 'multiple' : 'single';
        }
      }
    }
  }
  return $arity;
}