protected function SchemaFormBuilder::sequenceHandler in Migrate API 8

Same name and namespace in other branches

1. 8.2 src/SchemaFormBuilder.php \Drupal\migrate_api\SchemaFormBuilder::sequenceHandler()

Handle building a form when a sequence is encountered.

Parameters

array $schema: A schema plugin definition or subtree.

string $context: The form subtree currently being built.

array $form: The form or form subtree to attach elements to.

\Drupal\Core\Form\FormStateInterface $form_state: The form state of the form the subtree is attached to, for AJAX reasons.

File

src/SchemaFormBuilder.php, line 178

Contains \Drupal\migrate_api\SchemaFormBuilder.

Class

SchemaFormBuilder

Builds forms from schema.

Namespace

Drupal\migrate_api

Code

protected function sequenceHandler($schema, $context, &$form, $form_state) {
  $unique_ajax_key = $this
    ->uniqueAjaxId($schema, $context);
  foreach (range(0, $form_state
    ->get([
    'schema_form_deltas',
    $unique_ajax_key,
  ]) ?: 0) as $delta) {
    $this
      ->processSchema($schema['sequence'], $delta, $form[$context], $form_state);
  }
  $form[$context]['add'] = [
    '#type' => 'submit',
    '#value' => $this
      ->t('Add another'),
    '#name' => $unique_ajax_key,
    '#submit' => [
      [
        static::class,
        'sequenceHandlerSubmit',
      ],
    ],
    '#ajax' => [
      'callback' => [
        static::class,
        'sequenceHandlerAjax',
      ],
      'wrapper' => $unique_ajax_key,
    ],
  ];
  $form[$context]['#prefix'] = "<div id=\"{$unique_ajax_key}\">";
  $form[$context]['#suffix'] = '</div>';
  return $form;
}