/**
* {@inheritdoc}
*/
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setRequired('enum')->setDefault('choices_as_values', true)->setAllowedValues('enum', function ($name) {
return $this->enumRegistry->has($name);
})->setDefault('choices', function (Options $options) {
return array_flip($this->enumRegistry->get($options['enum'])->getChoices());
});
}
/**
* @param string $value
* @param string $enum
*
* @return string
*/
public function getLabel($value, $enum)
{
$choices = $this->registry->get($enum)->getChoices();
if (isset($choices[$value])) {
return $choices[$value];
}
return $value;
}
public function testEnumLabel()
{
$enum = $this->prophesize('EnumBundle\\Enum\\EnumInterface');
$enum->getChoices()->willReturn(['foo' => 'FOO', 'bar' => 'BAR']);
$this->registry->get('test')->willReturn($enum->reveal());
$twig = $this->createEnvironment();
$this->assertSame('FOO', $twig->createTemplate("{{ 'foo'|enum_label('test') }}")->render([]));
$this->assertSame('BAR', $twig->createTemplate("{{ enum_label('bar', 'test') }}")->render([]));
$this->assertSame('not_exist', $twig->createTemplate("{{ 'not_exist'|enum_label('test') }}")->render([]));
$this->assertSame('not_exist', $twig->createTemplate("{{ enum_label('not_exist', 'test') }}")->render([]));
}
/**
* {@inheritdoc}
*/
public function validate($value, Constraint $constraint)
{
if (!$constraint instanceof Enum) {
throw new UnexpectedTypeException($constraint, __NAMESPACE__ . '\\Enum');
}
$constraint->choices = null;
$constraint->callback = null;
if (!$constraint->enum) {
throw new ConstraintDefinitionException('"enum" must be specified on constraint Enum');
}
if (!$this->enumRegistry->has($constraint->enum)) {
throw new ConstraintDefinitionException(sprintf('"enum" "%s" on constraint Enum does not exist', $constraint->enum));
}
$constraint->choices = array_keys($this->enumRegistry->get($constraint->enum)->getChoices());
parent::validate($value, $constraint);
}