[英]silex form validation with dependencies
我已經使用silex框架構建了一個表單,該表單包含一些復選框和一個文本字段。 用戶必須至少選中一個復選框或在文本字段中寫一些東西。 現在,我不知道如何驗證這種依賴關系,或者更好地將驗證邏輯放在哪里。 我可以在單個字段中添加約束,但是如何實現復選框經過驗證或文本字段的依賴關系?
這是我在控制器類中的驗證代碼。
public function validateAction(Request $request, Application $app)
{
$form = $app['form.factory']->create(new ApplicationForm());
$form->bind($request);
if ($form->isValid()) {
return $app->json(array(
'success' => true,
));
}
}
ApplicationForm類如下所示(簡化):
class ApplicationForm extends AbstractType {
public function buildForm(FormBuilderInterface $builder, array $options) {
$builder
->add('crafts', 'choice', array(
'choices' => array(
array('drywall' => 'Drywall'),
array('painter' => 'Painter'),
array('plasterer' => 'Plasterer'),
array('carpenter' => 'Carpenter'),
array('electrician' => 'Electrician'),
array('plumber' => 'Plumber'),
array('tiler' => 'Tiler'),
array('bricklayer' => 'Bricklayer'),
),
'multiple' => true,
'expanded' => true,
'required' => false,
))
->add('craftsOther', 'text', array(
'attr' => array('class' => 'textinput', 'placeholder' => 'Other', 'maxlength' => 256),
'constraints' => array(
new Assert\Length(array('max' => 256, 'maxMessage' => $this->_errorMessages['crafts_other_max'])),
),
'required' => false,
));
}
}
任何想法如何以一種優雅的方式做到這一點?
您可以向表單本身添加約束,而不僅僅是單個字段。 您可以在選項中傳遞一組約束:
這是一個工作示例,檢查提交時兩個字段是否相等。
<?php
require_once __DIR__.'/../vendor/autoload.php';
use Silex\Application;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\Extension\Core\Type\SubmitType;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Validator\Context\ExecutionContextInterface;
use Symfony\Component\Validator\Constraints as Assert;
$app = new Application();
$app['debug'] = true;
$app->register(new \Silex\Provider\FormServiceProvider());
$app->register(new Silex\Provider\TranslationServiceProvider(), array('translator.domains' => array(),));
$app->register(new Silex\Provider\ValidatorServiceProvider());
$app->register(new Silex\Provider\TwigServiceProvider());
class ExampleFormType extends AbstractType
{
public function buildForm(\Symfony\Component\Form\FormBuilderInterface $builder, array $options)
{
$builder
->add('apple')
->add('banana')
->add('submit', SubmitType::class);
}
public function configureOptions(\Symfony\Component\OptionsResolver\OptionsResolver $resolver)
{
$resolver->setDefaults([
'constraints' => [
new Assert\Callback(function (array $data, ExecutionContextInterface $context) {
if ($data['apple'] === $data['banana']) {
$context
->buildViolation('Apple and Banana cannot be the same')
->atPath('apple')
->addViolation();
}
}),
],
]);
}
}
$app->match('/', function (Request $request, Application $app) {
$form = $app['form.factory']->create(ExampleFormType::class)->handleRequest($request);
if ($form->isValid()) {
echo "Valid Submission";
}
return $app['twig']->createTemplate('{{ form(form) }}')->render([
'form' => $form->createView(),
]);
})->method('GET|POST');
$app->run();
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.