protected function Widget::getEmptyOption in Select (or other) 8.3

Returns the empty option to add to the list of options, if any.

Return value

string|null Either static::OPTIONS_EMPTY_NONE, static::OPTIONS_EMPTY_SELECT, or NULL.

Overrides SelectOrOtherWidgetBase::getEmptyOption

1 call to Widget::getEmptyOption()

Widget::getOptions in src/Plugin/Field/FieldWidget/Widget.php

Returns the array of options for the widget.

File

src/Plugin/Field/FieldWidget/Widget.php, line 192

Contains \Drupal\select_or_other\Plugin\Field\FieldWidget\Widget.

Class

Widget

Plugin implementation of the 'select_or_other' widget.

Namespace

Drupal\select_or_other\Plugin\Field\FieldWidget

Code

protected function getEmptyOption() {
  if ($this
    ->isMultiple()) {

    // Multiple select: add a 'none' option for non-required fields.
    if (!$this
      ->isRequired()) {
      return static::SELECT_OR_OTHER_EMPTY_NONE;
    }
  }
  else {

    // Single select: add a 'none' option for non-required fields,
    // and a 'select a value' option for required fields that do not come
    // with a value selected.
    if (!$this
      ->isRequired()) {
      return static::SELECT_OR_OTHER_EMPTY_NONE;
    }
    if (!$this
      ->hasValue()) {
      return static::SELECT_OR_OTHER_EMPTY_SELECT;
    }
  }
  return NULL;
}