/**
* {@inheritdoc}
*/
public function configureOptions(OptionsResolver $resolver)
{
$choiceLabels = (object) array('labels' => array());
$choiceListFactory = $this->choiceListFactory;
$emptyData = function (Options $options) {
if ($options['multiple'] || $options['expanded']) {
return array();
}
return '';
};
$placeholder = function (Options $options) {
return $options['required'] ? null : '';
};
// BC closure, to be removed in 3.0
$choicesNormalizer = function (Options $options, $choices) use($choiceLabels) {
// Unset labels from previous invocations
$choiceLabels->labels = array();
// This closure is irrelevant when "choices_as_values" is set to true
if ($options['choices_as_values']) {
return $choices;
}
if (null === $choices) {
return;
}
return ChoiceType::normalizeLegacyChoices($choices, $choiceLabels);
};
// BC closure, to be removed in 3.0
$choiceLabel = function (Options $options) use($choiceLabels) {
// If the choices contain duplicate labels, the normalizer of the
// "choices" option stores them in the $choiceLabels variable
// Trigger the normalizer
$options->offsetGet('choices');
// Pick labels from $choiceLabels if available
if ($choiceLabels->labels) {
// Don't pass the labels by reference. We do want to create a
// copy here so that every form has an own version of that
// variable (contrary to the $choiceLabels object shared by all
// forms)
$labels = $choiceLabels->labels;
// The $choiceLabels object is shared with the 'choices' closure.
// Since that normalizer can be replaced, labels have to be cleared here.
$choiceLabels->labels = array();
return function ($choice, $key) use($labels) {
return $labels[$key];
};
}
return;
};
$that = $this;
$choiceListNormalizer = function (Options $options, $choiceList) use($choiceListFactory, $that) {
if ($choiceList) {
@trigger_error(sprintf('The "choice_list" option of the "%s" form type (%s) is deprecated since version 2.7 and will be removed in 3.0. Use "choice_loader" instead.', $that->getName(), __CLASS__), E_USER_DEPRECATED);
if ($choiceList instanceof LegacyChoiceListInterface) {
return new LegacyChoiceListAdapter($choiceList);
}
return $choiceList;
}
if (null !== $options['choice_loader']) {
return $choiceListFactory->createListFromLoader($options['choice_loader'], $options['choice_value']);
}
// Harden against NULL values (like in EntityType and ModelType)
$choices = null !== $options['choices'] ? $options['choices'] : array();
// BC when choices are in the keys, not in the values
if (!$options['choices_as_values']) {
return $choiceListFactory->createListFromFlippedChoices($choices, $options['choice_value'], false);
}
return $choiceListFactory->createListFromChoices($choices, $options['choice_value']);
};
$placeholderNormalizer = function (Options $options, $placeholder) use($that) {
if (!is_object($options['empty_value']) || !$options['empty_value'] instanceof \Exception) {
@trigger_error(sprintf('The form option "empty_value" of the "%s" form type (%s) is deprecated since version 2.6 and will be removed in 3.0. Use "placeholder" instead.', $that->getName(), __CLASS__), E_USER_DEPRECATED);
$placeholder = $options['empty_value'];
}
if ($options['multiple']) {
// never use an empty value for this case
return;
} elseif ($options['required'] && ($options['expanded'] || isset($options['attr']['size']) && $options['attr']['size'] > 1)) {
// placeholder for required radio buttons or a select with size > 1 does not make sense
return;
} elseif (false === $placeholder) {
// an empty value should be added but the user decided otherwise
return;
} elseif ($options['expanded'] && '' === $placeholder) {
// never use an empty label for radio buttons
return 'None';
}
// empty value has been set explicitly
return $placeholder;
};
$compound = function (Options $options) {
return $options['expanded'];
};
$choiceTranslationDomainNormalizer = function (Options $options, $choiceTranslationDomain) {
if (true === $choiceTranslationDomain) {
return $options['translation_domain'];
}
return $choiceTranslationDomain;
};
$resolver->setDefaults(array('multiple' => false, 'expanded' => false, 'choice_list' => null, 'choices' => array(), 'choices_as_values' => false, 'choice_loader' => null, 'choice_label' => $choiceLabel, 'choice_name' => null, 'choice_value' => null, 'choice_attr' => null, 'preferred_choices' => array(), 'group_by' => null, 'empty_data' => $emptyData, 'empty_value' => new \Exception(), 'placeholder' => $placeholder, 'error_bubbling' => false, 'compound' => $compound, 'data_class' => null, 'choice_translation_domain' => true));
$resolver->setNormalizer('choices', $choicesNormalizer);
$resolver->setNormalizer('choice_list', $choiceListNormalizer);
$resolver->setNormalizer('placeholder', $placeholderNormalizer);
$resolver->setNormalizer('choice_translation_domain', $choiceTranslationDomainNormalizer);
$resolver->setAllowedTypes('choice_list', array('null', 'Symfony\\Component\\Form\\ChoiceList\\ChoiceListInterface', 'Symfony\\Component\\Form\\Extension\\Core\\ChoiceList\\ChoiceListInterface'));
$resolver->setAllowedTypes('choices', array('null', 'array', '\\Traversable'));
$resolver->setAllowedTypes('choice_translation_domain', array('null', 'bool', 'string'));
$resolver->setAllowedTypes('choices_as_values', 'bool');
$resolver->setAllowedTypes('choice_loader', array('null', 'Symfony\\Component\\Form\\ChoiceList\\Loader\\ChoiceLoaderInterface'));
$resolver->setAllowedTypes('choice_label', array('null', 'bool', 'callable', 'string', 'Symfony\\Component\\PropertyAccess\\PropertyPath'));
$resolver->setAllowedTypes('choice_name', array('null', 'callable', 'string', 'Symfony\\Component\\PropertyAccess\\PropertyPath'));
$resolver->setAllowedTypes('choice_value', array('null', 'callable', 'string', 'Symfony\\Component\\PropertyAccess\\PropertyPath'));
$resolver->setAllowedTypes('choice_attr', array('null', 'array', 'callable', 'string', 'Symfony\\Component\\PropertyAccess\\PropertyPath'));
$resolver->setAllowedTypes('preferred_choices', array('array', '\\Traversable', 'callable', 'string', 'Symfony\\Component\\PropertyAccess\\PropertyPath'));
$resolver->setAllowedTypes('group_by', array('null', 'array', '\\Traversable', 'callable', 'string', 'Symfony\\Component\\PropertyAccess\\PropertyPath'));
}
