Example #1
1
  /**
   * Build all necessary things for child form (form state, etc.).
   *
   * @param \Drupal\Core\Entity\EntityFormInterface $controller
   *   Entity form controller for child form.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   Parent form state object.
   * @param \Drupal\Core\Entity\EntityInterface $entity
   *   Entity object.
   * @param string $operation
   *   Operation that is to be performed in inline form.
   * @param array $parents
   *   Entity form #parents.
   *
   * @return \Drupal\Core\Form\FormStateInterface
   *   Child form state object.
   */
  public static function buildChildFormState(EntityFormInterface $controller, FormStateInterface $form_state, EntityInterface $entity, $operation, $parents) {
    $child_form_state = new FormState();

    $child_form_state->addBuildInfo('callback_object', $controller);
    $child_form_state->addBuildInfo('base_form_id', $controller->getBaseFormID());
    $child_form_state->addBuildInfo('form_id', $controller->getFormID());
    $child_form_state->addBuildInfo('args', array());

    // Copy values to child form.
    $child_form_state->setCompleteForm($form_state->getCompleteForm());
    $child_form_state->setUserInput($form_state->getUserInput());

    // Filter out all submitted values that are not directly relevant for this
    // IEF. Otherwise they might mess things up.
    $form_state_values = $form_state->getValues();
    $form_state_values = static::extractArraySequence($form_state_values, $parents);

    $child_form_state->setValues($form_state_values);
    $child_form_state->setStorage($form_state->getStorage());
    $value = \Drupal::entityTypeManager()->getStorage('entity_form_display')->load($entity->getEntityTypeId() . '.' . $entity->bundle() . '.' . $operation);
    $child_form_state->set('form_display', $value);

    // Since some of the submit handlers are run, redirects need to be disabled.
    $child_form_state->disableRedirect();

    // When a form is rebuilt after Ajax processing, its #build_id and #action
    // should not change.
    // @see drupal_rebuild_form()
    $rebuild_info = $child_form_state->getRebuildInfo();
    $rebuild_info['copy']['#build_id'] = TRUE;
    $rebuild_info['copy']['#action'] = TRUE;
    $child_form_state->setRebuildInfo($rebuild_info);

    $child_form_state->set('inline_entity_form', $form_state->get('inline_entity_form'));
    $child_form_state->set('langcode', $entity->language()->getId());

    $child_form_state->set('field', $form_state->get('field'));
    $child_form_state->setTriggeringElement($form_state->getTriggeringElement());
    $child_form_state->setSubmitHandlers($form_state->getSubmitHandlers());

    return $child_form_state;
  }
 /**
  * Build all necessary things for child form (form state, etc.).
  *
  * @param \Drupal\Core\Entity\EntityFormInterface $controller
  *   Entity form controller for child form.
  * @param \Drupal\Core\Form\FormStateInterface $form_state
  *   Parent form state object.
  * @param \Drupal\Core\Entity\EntityInterface $entity
  *   Entity object.
  * @param string $operation
  *   Operation that is to be performed in inline form.
  *
  * @return \Drupal\Core\Form\FormStateInterface
  *   Child form state object.
  */
 public static function buildChildFormState(EntityFormInterface $controller, FormStateInterface $form_state, EntityInterface $entity, $operation)
 {
     $child_form_state = new FormState();
     $child_form_state->addBuildInfo('callback_object', $controller);
     $child_form_state->addBuildInfo('base_form_id', $controller->getBaseFormID());
     $child_form_state->addBuildInfo('form_id', $controller->getFormID());
     $child_form_state->addBuildInfo('args', array());
     // Copy values to child form.
     $child_form_state->setUserInput($form_state->getUserInput());
     $child_form_state->setValues($form_state->getValues());
     $child_form_state->setStorage($form_state->getStorage());
     $child_form_state->set('form_display', entity_get_form_display($entity->getEntityTypeId(), $entity->bundle(), $operation));
     // Since some of the submit handlers are run, redirects need to be disabled.
     $child_form_state->disableRedirect();
     // When a form is rebuilt after Ajax processing, its #build_id and #action
     // should not change.
     // @see drupal_rebuild_form()
     $rebuild_info = $child_form_state->getRebuildInfo();
     $rebuild_info['copy']['#build_id'] = TRUE;
     $rebuild_info['copy']['#action'] = TRUE;
     $child_form_state->setRebuildInfo($rebuild_info);
     $child_form_state->set('inline_entity_form', $form_state->get('inline_entity_form'));
     $child_form_state->set('langcode', $entity->language()->getId());
     $child_form_state->set('field', $form_state->get('field'));
     $child_form_state->setTriggeringElement($form_state->getTriggeringElement());
     $child_form_state->setSubmitHandlers($form_state->getSubmitHandlers());
     return $child_form_state;
 }