public function InlineEntityFormSimple::extractFormValues in Inline Entity Form 8

Extracts field values from submitted form values.

Parameters

\Drupal\Core\Field\FieldItemListInterface $items: The field values. This parameter is altered by reference to receive the incoming form values.

array $form: The form structure where field elements are attached to. This might be a full form structure, or a sub-element of a larger form.

\Drupal\Core\Form\FormStateInterface $form_state: The form state.

Overrides WidgetBase::extractFormValues

File

src/Plugin/Field/FieldWidget/InlineEntityFormSimple.php, line 126

Class

InlineEntityFormSimple

Simple inline widget.

Namespace

Drupal\inline_entity_form\Plugin\Field\FieldWidget

Code

public function extractFormValues(FieldItemListInterface $items, array $form, FormStateInterface $form_state) {
  if ($this
    ->isDefaultValueWidget($form_state)) {
    $items
      ->filterEmptyItems();
    return;
  }
  $field_name = $this->fieldDefinition
    ->getName();
  $parents = array_merge($form['#parents'], [
    $field_name,
  ]);
  $submitted_values = $form_state
    ->getValue($parents);
  $values = [];
  foreach ($items as $delta => $value) {
    $element = NestedArray::getValue($form, [
      $field_name,
      'widget',
      $delta,
    ]);

    /** @var \Drupal\Core\Entity\EntityInterface $entity */
    $entity = $element['inline_entity_form']['#entity'];
    $weight = isset($submitted_values[$delta]['_weight']) ? $submitted_values[$delta]['_weight'] : 0;
    $values[$weight] = [
      'entity' => $entity,
    ];
  }

  // Sort items base on weights.
  ksort($values);
  $values = array_values($values);

  // Let the widget massage the submitted values.
  $values = $this
    ->massageFormValues($values, $form, $form_state);

  // Assign the values and remove the empty ones.
  $items
    ->setValue($values);
  $items
    ->filterEmptyItems();

  // Populate the IEF form state with $items so that WidgetSubmit can
  // perform the necessary saves.
  $ief_id = $this
    ->makeIefId($parents);
  $widget_state = [
    'instance' => $this->fieldDefinition,
    'delete' => [],
    'entities' => [],
  ];
  foreach ($items as $delta => $value) {
    TranslationHelper::updateEntityLangcode($value->entity, $form_state);
    $widget_state['entities'][$delta] = [
      'entity' => $value->entity,
      'needs_save' => TRUE,
    ];
  }
  $form_state
    ->set([
    'inline_entity_form',
    $ief_id,
  ], $widget_state);

  // Put delta mapping in $form_state, so that flagErrors() can use it.
  $field_name = $this->fieldDefinition
    ->getName();
  $field_state = WidgetBase::getWidgetState($form['#parents'], $field_name, $form_state);
  foreach ($items as $delta => $item) {
    $field_state['original_deltas'][$delta] = isset($item->_original_delta) ? $item->_original_delta : $delta;
    unset($item->_original_delta, $item->weight);
  }
  WidgetBase::setWidgetState($form['#parents'], $field_name, $form_state, $field_state);
}