protected function EntityReferenceDragDropWidget::getAvailableOptions 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::getAvailableOptions()

Gets a list of available entities for the field.

Parameters

\Drupal\Core\Field\FieldItemListInterface $items:

Return value

array

1 call to EntityReferenceDragDropWidget::getAvailableOptions()

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

Returns the form for a single field widget.

File

src/Plugin/Field/FieldWidget/EntityReferenceDragDropWidget.php, line 224

Class

EntityReferenceDragDropWidget

Plugin implementation of the 'entityreference_dragdrop' widget.

Namespace

Drupal\entityreference_dragdrop\Plugin\Field\FieldWidget

Code

protected function getAvailableOptions(FieldItemListInterface $items) {

  // We need to check against a flat list of options.
  $flat_options = OptGroup::flattenOptions($this
    ->getOptions($items
    ->getEntity()));
  $selected_options = $this
    ->getSelectedOptions($items);
  $available_options = [];
  foreach ($flat_options as $id => $option) {
    if (!in_array($option, $selected_options)) {
      $available_options[$id] = $option;
    }
  }
  return $available_options;
}