protected function EntityReferenceDragDropWidget::getSelectedOptions in Entity Reference Drag & Drop 8

Same name and namespace in other branches

1. 2.x src/Plugin/Field/FieldWidget/EntityReferenceDragDropWidget.php \Drupal\entityreference_dragdrop\Plugin\Field\FieldWidget\EntityReferenceDragDropWidget::getSelectedOptions()

Determines selected options from the incoming field values.

Parameters

\Drupal\Core\Field\FieldItemListInterface $items: The field values.

Return value

array The array of corresponding selected options.

Overrides OptionsWidgetBase::getSelectedOptions

2 calls to EntityReferenceDragDropWidget::getSelectedOptions()

EntityReferenceDragDropWidget::formElement in src/Plugin/Field/FieldWidget/EntityReferenceDragDropWidget.php

Returns the form for a single field widget.

EntityReferenceDragDropWidget::getAvailableOptions in src/Plugin/Field/FieldWidget/EntityReferenceDragDropWidget.php

Gets a list of available entities for the field.

File

src/Plugin/Field/FieldWidget/EntityReferenceDragDropWidget.php, line 201

Class

EntityReferenceDragDropWidget

Plugin implementation of the 'entityreference_dragdrop' widget.

Namespace

Drupal\entityreference_dragdrop\Plugin\Field\FieldWidget

Code

protected function getSelectedOptions(FieldItemListInterface $items, $delta = 0) {

  // We need to check against a flat list of options.
  $flat_options = OptGroup::flattenOptions($this
    ->getOptions($items
    ->getEntity()));
  $selected_options = [];
  foreach ($items as $item) {
    $id = $item->{$this->column};

    // Keep the value if it actually is in the list of options (needs to be
    // checked against the flat list).
    if (isset($flat_options[$id])) {
      $selected_options[$id] = $flat_options[$id];
    }
  }
  return $selected_options;
}