public static function YamlFormMultiple::removeItemSubmit in YAML Form 8
Form submission handler for removing an item.
Parameters
array $form: An associative array containing the structure of the form.
\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.
File
- src/
Element/ YamlFormMultiple.php, line 368
Class
- YamlFormMultiple
- Provides a form element to assist in creation of multiple elements.
Namespace
Drupal\yamlform\ElementCode
public static function removeItemSubmit(array &$form, FormStateInterface $form_state) {
$button = $form_state
->getTriggeringElement();
$element = NestedArray::getValue($form, array_slice($button['#array_parents'], 0, -4));
$values = $element['items']['#value'];
// Remove item.
unset($values[$button['#row_index']]);
$values = array_values($values);
// Remove one item from the 'number of items'.
$number_of_items_storage_key = self::getStorageKey($element, 'number_of_items');
$number_of_items = $form_state
->get($number_of_items_storage_key);
// Never allow the number of items to be less than 1.
if ($number_of_items != 1) {
$form_state
->set($number_of_items_storage_key, $number_of_items - 1);
}
// Reset values.
$form_state
->setValueForElement($element['items'], $values);
NestedArray::setValue($form_state
->getUserInput(), $element['items']['#parents'], $values);
// Rebuild the form.
$form_state
->setRebuild();
}