defaultNull example

/** * @param ArrayNodeDefinition $builder */
    public function addConfiguration(NodeDefinition $builder): void
    {
        $builder
            ->children()
                ->scalarNode('limiter')->info(sprintf('A service id implementing "%s".', RequestRateLimiterInterface::class))->end()
                ->integerNode('max_attempts')->defaultValue(5)->end()
                ->scalarNode('interval')->defaultValue('1 minute')->end()
                ->scalarNode('lock_factory')->info('The service ID of the lock factory used by the login rate limiter (or null to disable locking)')->defaultNull()->end()
            ->end();
    }

    public function createAuthenticator(ContainerBuilder $container, string $firewallName, array $config, string $userProviderId): array
    {
        if (!class_exists(RateLimiterFactory::class)) {
            throw new \LogicException('Login throttling requires the Rate Limiter component. Try running "composer require symfony/rate-limiter".');
        }

        if (!isset($config['limiter'])) {
            $limiterOptions = [
                

$this->options = [];
        $this->defaultFailureHandlerOptions = [];
        $this->defaultSuccessHandlerOptions = [];
    }

    public function addConfiguration(NodeDefinition $node): void
    {
        parent::addConfiguration($node);

        $builder = $node->children();
        $builder
            ->scalarNode('realm')->defaultNull()->end()
            ->arrayNode('token_extractors')
                ->fixXmlConfig('token_extractors')
                ->beforeNormalization()
                    ->ifString()
                    ->then(fn ($v) => [$v])
                ->end()
                ->cannotBeEmpty()
                ->defaultValue([
                    'security.access_token_extractor.header',
                ])
                ->scalarPrototype()->end()
            

->end()

                ->arrayNode('messenger')
                    ->children()
                        ->arrayNode('transports')
                            ->normalizeKeys(false)
                            ->useAttributeAsKey('name')
                            ->arrayPrototype()
                                ->fixXmlConfig('option')
                                ->children()
                                    ->scalarNode('dsn')->end()
                                    ->scalarNode('serializer')->defaultNull()->end()
                                    ->arrayNode('options')
                                        ->normalizeKeys(false)
                                        ->defaultValue([])
                                        ->prototype('variable')
                                        ->end()
                                    ->end()
                                ->end()
                            ->end()
                        ->end()
                    ->end()
                ->end()
            

->end()
                        ->prototype('scalar')->end()
                    ->end()
                ->end()
                ->arrayNode('object')
                    ->addDefaultsIfNotSet()
                    ->beforeNormalization()
                        ->ifTrue(fn ($v) => !\is_array($v))
                        ->then(fn ($v) => ['enabled' => $v])
                    ->end()
                    ->children()
                        ->booleanNode('enabled')->defaultNull()->end()
                        ->scalarNode('date_format')->end()
                        ->booleanNode('remove_used_context_fields')->end()
                    ->end()
                ->end()
                ->arrayNode('list_object')
                    ->beforeNormalization()
                        ->always()
                        ->then(function D$values) {
                            // inspired by Workflow places                             if (isset($values[0]) && \is_string($values[0])) {
                                return array_map(function Dstring $value) {
                                    

->defaultValue(['password'])
            ->end()
            ->arrayNode('token_provider')
                ->beforeNormalization()
                    ->ifString()->then(fn ($v) => ['service' => $v])
                ->end()
                ->children()
                    ->scalarNode('service')->info('The service ID of a custom rememberme token provider.')->end()
                    ->arrayNode('doctrine')
                        ->canBeEnabled()
                        ->children()
                            ->scalarNode('connection')->defaultNull()->end()
                        ->end()
                    ->end()
                ->end()
            ->end()
            ->scalarNode('token_verifier')
                ->info('The service ID of a custom rememberme token verifier.')
            ->end();

        foreach ($this->options as $name => $value) {
            if ('secure' === $name) {
                $builder->enumNode($name)->values([true, false, 'auto'])->defaultValue('auto' === $value ? null : $value);
            }

->min(0)
                    ->defaultValue(1)
                ->end()
                ->integerNode('max_string_length')
                    ->info('Max length of displayed strings, -1 means no limit')
                    ->min(-1)
                    ->defaultValue(-1)
                ->end()
                ->scalarNode('dump_destination')
                    ->info('A stream URL where dumps should be written to')
                    ->example('php://stderr, or tcp://%env(VAR_DUMPER_SERVER)% when using the "server:dump" command')
                    ->defaultNull()
                ->end()
                ->enumNode('theme')
                    ->info('Changes the color of the dump() output when rendered directly on the templating. "dark" (default) or "light"')
                    ->example('dark')
                    ->values(['dark', 'light'])
                    ->defaultValue('dark')
                ->end()
        ;

        return $treeBuilder;
    }
}

/** * Generates the configuration tree builder. */
    public function getConfigTreeBuilder(): TreeBuilder
    {
        $tb = new TreeBuilder('security');
        $rootNode = $tb->getRootNode();

        $rootNode
            ->children()
                ->scalarNode('access_denied_url')->defaultNull()->example('/foo/error403')->end()
                ->enumNode('session_fixation_strategy')
                    ->values([SessionAuthenticationStrategy::NONE, SessionAuthenticationStrategy::MIGRATE, SessionAuthenticationStrategy::INVALIDATE])
                    ->defaultValue(SessionAuthenticationStrategy::MIGRATE)
                ->end()
                ->booleanNode('hide_user_not_found')->defaultTrue()->end()
                ->booleanNode('erase_credentials')->defaultTrue()->end()
                ->booleanNode('enable_authenticator_manager')->setDeprecated('symfony/security-bundle', '6.2', 'The "%node%" option at "%path%" is deprecated.')->defaultTrue()->end()
                ->arrayNode('access_decision_manager')
                    ->addDefaultsIfNotSet()
                    ->children()
                        ->enumNode('strategy')
                            

->isRequired()
                ->prototype('scalar')->end()
                ->requiresAtLeastOneElement()
                ->info('An array of properties on your User that are used to sign the link. If any of these change, all existing links will become invalid.')
                ->example(['email', 'password'])
            ->end()
            ->integerNode('lifetime')
                ->defaultValue(600)
                ->info('The lifetime of the login link in seconds.')
            ->end()
            ->integerNode('max_uses')
                ->defaultNull()
                ->info('Max number of times a login link can be used - null means unlimited within lifetime.')
            ->end()
            ->scalarNode('used_link_cache')
                ->info('Cache service id used to expired links of max_uses is set.')
            ->end()
            ->scalarNode('success_handler')
                ->info(sprintf('A service id that implements %s.', AuthenticationSuccessHandlerInterface::class))
            ->end()
            ->scalarNode('failure_handler')
                ->info(sprintf('A service id that implements %s.', AuthenticationFailureHandlerInterface::class))
            ->end()
            

    public function addConfiguration(NodeDefinition $node)
    {
        $node
            ->children()
                ->scalarNode('class')
                    ->isRequired()
                    ->info('The full entity class name of your user class.')
                    ->cannotBeEmpty()
                ->end()
                ->scalarNode('property')->defaultNull()->end()
                ->scalarNode('manager_name')->defaultNull()->end()
            ->end()
        ;
    }
}

    public function addConfiguration(NodeDefinition $node)
    {
        $node
            ->fixXmlConfig('user')
            ->children()
                ->arrayNode('users')
                    ->useAttributeAsKey('identifier')
                    ->normalizeKeys(false)
                    ->prototype('array')
                        ->children()
                            ->scalarNode('password')->defaultNull()->end()
                            ->arrayNode('roles')
                                ->beforeNormalization()->ifString()->then(fn ($v) => preg_split('/\s*,\s*/', $v))->end()
                                ->prototype('scalar')->end()
                            ->end()
                        ->end()
                    ->end()
                ->end()
            ->end()
        ;
    }
}

public function getConfigTreeBuilder(): TreeBuilder
    {
        $treeBuilder = new TreeBuilder('acme_root');

        $treeBuilder->getRootNode()
            ->fixXmlConfig('parameter')
            ->fixXmlConfig('connection')
            ->fixXmlConfig('cms_page')
            ->children()
                ->booleanNode('boolean')->defaultTrue()->end()
                ->scalarNode('scalar_empty')->end()
                ->scalarNode('scalar_null')->defaultNull()->end()
                ->scalarNode('scalar_true')->defaultTrue()->end()
                ->scalarNode('scalar_false')->defaultFalse()->end()
                ->scalarNode('scalar_default')->defaultValue('default')->end()
                ->scalarNode('scalar_array_empty')->defaultValue([])->end()
                ->scalarNode('scalar_array_defaults')->defaultValue(['elem1', 'elem2'])->end()
                ->scalarNode('scalar_required')->isRequired()->end()
                ->scalarNode('scalar_deprecated')->setDeprecated('vendor/package', '1.1')->end()
                ->scalarNode('scalar_deprecated_with_message')->setDeprecated('vendor/package', '1.1', 'Deprecation custom message for "%node%" at "%path%"')->end()
                ->scalarNode('node_with_a_looong_name')->end()
                ->enumNode('enum_with_default')->values(['this', 'that'])->defaultValue('this')->end()
                ->enumNode('enum')->values(['this', 'that', TestEnum::Ccc])->end()
                

/** * @return void */
    public function addConfiguration(NodeDefinition $node)
    {
        $node
            ->fixXmlConfig('extra_field')
            ->fixXmlConfig('default_role')
            ->children()
                ->scalarNode('service')->isRequired()->cannotBeEmpty()->defaultValue('ldap')->end()
                ->scalarNode('base_dn')->isRequired()->cannotBeEmpty()->end()
                ->scalarNode('search_dn')->defaultNull()->end()
                ->scalarNode('search_password')->defaultNull()->end()
                ->arrayNode('extra_fields')
                    ->prototype('scalar')->end()
                ->end()
                ->arrayNode('default_roles')
                    ->beforeNormalization()->ifString()->then(fn ($v) => preg_split('/\s*,\s*/', $v))->end()
                    ->requiresAtLeastOneElement()
                    ->prototype('scalar')->end()
                ->end()
                ->scalarNode('uid_key')->defaultValue('sAMAccountName')->end()
                ->scalarNode('filter')->defaultValue('({uid_key}={username})')->end()
                

private function addCsrfSection(ArrayNodeDefinition $rootNode): void
    {
        $rootNode
            ->children()
                ->arrayNode('csrf_protection')
                    ->treatFalseLike(['enabled' => false])
                    ->treatTrueLike(['enabled' => true])
                    ->treatNullLike(['enabled' => true])
                    ->addDefaultsIfNotSet()
                    ->children()
                        // defaults to framework.session.enabled && !class_exists(FullStack::class) && interface_exists(CsrfTokenManagerInterface::class)                         ->booleanNode('enabled')->defaultNull()->end()
                    ->end()
                ->end()
            ->end()
        ;
    }

    private function addFormSection(ArrayNodeDefinition $rootNode, callable $enableIfStandalone): void
    {
        $rootNode
            ->children()
                ->arrayNode('form')
                    

    private function addTwigOptions(ArrayNodeDefinition $rootNode): void
    {
        $rootNode
            ->fixXmlConfig('path')
            ->children()
                ->variableNode('autoescape')
                    ->defaultValue('name')
                    ->setDeprecated('symfony/twig-bundle', '6.1', 'Option "%node%" at "%path%" is deprecated, use autoescape_service[_method] instead.')
                ->end()
                ->scalarNode('autoescape_service')->defaultNull()->end()
                ->scalarNode('autoescape_service_method')->defaultNull()->end()
                ->scalarNode('base_template_class')->example('Twig\Template')->cannotBeEmpty()->end()
                ->scalarNode('cache')->defaultValue('%kernel.cache_dir%/twig')->end()
                ->scalarNode('charset')->defaultValue('%kernel.charset%')->end()
                ->booleanNode('debug')->defaultValue('%kernel.debug%')->end()
                ->booleanNode('strict_variables')->defaultValue('%kernel.debug%')->end()
                ->scalarNode('auto_reload')->end()
                ->integerNode('optimizations')->min(-1)->end()
                ->scalarNode('default_path')
                    ->info('The default path used to load templates')
                    ->defaultValue('%kernel.project_dir%/templates')