/**
* {@inheritdoc}
*/
public function setDefaultOptions(OptionsResolverInterface $resolver)
{
$choices = $this->option->getValues();
if (!$choices->first()) {
throw new MissingOptionsException(sprintf('The option "%s" must have values assigned before it may be used in a form.', $this->option->getName()));
}
$class = get_class($choices->first());
// Remove locked values from choice list.
$choices = $choices->filter(function ($choice) {
return !$choice->isLocked();
});
// Sort choice list.
$choices = OptionOrder::sort($choices, $this->sortBy);
$resolver->setDefaults(array('class' => $class, 'choices' => $choices, 'empty_value' => 'dag.option.form.choose'));
}
