public static function UnlimitedNumber::processUnlimitedNumber in Unlimited Number Field 8

Same name and namespace in other branches

1. 2.x src/Element/UnlimitedNumber.php \Drupal\unlimited_number\Element\UnlimitedNumber::processUnlimitedNumber()

Adds form fields for radios and number field.

Return value

array The processed element.

File

src/Element/UnlimitedNumber.php, line 51

Class

UnlimitedNumber

Provides an unlimited or number radios element

Namespace

Drupal\unlimited_number\Element

Code

public static function processUnlimitedNumber(&$element, FormStateInterface $form_state, &$complete_form) {
  $value = isset($element['#default_value']) ? $element['#default_value'] : NULL;
  $element['unlimited_number'] = [
    '#type' => 'radios',
    '#options' => NULL,
    '#title' => $element['#title'],
    '#description' => $element['#description'],
    '#required' => !empty($element['#required']),
    // Kills \Drupal\Core\Render\Element\Radios::processRadios.
    '#process' => [],
  ];
  $element['unlimited_number']['unlimited'] = [
    '#prefix' => '<div class="form-item">',
    '#suffix' => '</div>',
  ];
  $element['unlimited_number']['unlimited']['radio'] = [
    '#type' => 'radio',
    '#title' => !empty($element['#options']['unlimited']) ? $element['#options']['unlimited'] : t('Unlimited'),
    '#return_value' => 'unlimited',
    '#parents' => array_merge($element['#parents'], [
      'unlimited_number',
    ]),
    '#default_value' => $value == static::UNLIMITED ? 'unlimited' : NULL,
    // Errors only on parent.
    '#error_no_message' => TRUE,
    '#attributes' => $element['#attributes'],
    '#ajax' => isset($element['#ajax']) ? $element['#ajax'] : NULL,
  ];
  $element['unlimited_number']['limited'] = [
    '#prefix' => '<div class="form-item container-inline">',
    '#suffix' => '</div>',
  ];
  $element['unlimited_number']['limited']['radio'] = [
    '#type' => 'radio',
    '#title' => !empty($element['#options']['limited']) ? $element['#options']['limited'] : t('Limited'),
    '#return_value' => 'limited',
    '#parents' => array_merge($element['#parents'], [
      'unlimited_number',
    ]),
    '#default_value' => is_numeric($value) ? 'limited' : NULL,
    '#error_no_message' => TRUE,
    '#attributes' => $element['#attributes'],
    '#ajax' => isset($element['#ajax']) ? $element['#ajax'] : NULL,
  ];
  $element['unlimited_number']['limited']['number'] = [
    '#type' => 'number',
    '#parents' => array_merge($element['#parents'], [
      'number',
    ]),
    '#default_value' => is_numeric($value) ? $value : NULL,
    '#field_prefix' => isset($element['#field_prefix']) ? $element['#field_prefix'] : NULL,
    '#field_suffix' => isset($element['#field_suffix']) ? $element['#field_suffix'] : NULL,
    '#min' => isset($element['#min']) ? $element['#min'] : NULL,
    '#max' => isset($element['#max']) ? $element['#max'] : NULL,
    '#step' => isset($element['#step']) ? $element['#step'] : NULL,
    '#attributes' => $element['#attributes'],
    '#ajax' => isset($element['#ajax']) ? $element['#ajax'] : NULL,
  ];

  // Must be a tree otherwise the last processed child element will leak its
  // value down to the root element.
  $element['#tree'] = TRUE;

  // Prevent entire tree being required. Fixes empty number field adding
  // errors to the entire tree.
  $element['#required'] = FALSE;

  // Unset options as they are not valid radios.
  unset($element['#options']);
  return $element;
}