Php 如何验证Symfony表单输入MoneyType?
如何使用验证表单帖子 这已经够糟糕的了,但更糟糕的是,不管输入什么,比如“asdf”,响应总是:Php 如何验证Symfony表单输入MoneyType?,php,forms,validation,symfony,Php,Forms,Validation,Symfony,如何使用验证表单帖子 这已经够糟糕的了,但更糟糕的是,不管输入什么,比如“asdf”,响应总是:发布的有效表单。如何获得有用的错误消息,指示用户需要输入有效的金额,例如“43.21” 我尝试了添加选项上的'error\u bubbling'=>true,twig视图中的{form\u errors(form)},以及所建议的控制器中的$form->getErrors(),但这些都是空的,因为无论用户输入如何,$form->isValid()始终返回true 项目结构: scratch.php
发布的有效表单。
如何获得有用的错误消息,指示用户需要输入有效的金额,例如“43.21”
我尝试了添加选项上的'error\u bubbling'=>true
,twig视图中的{form\u errors(form)}
,以及所建议的控制器中的$form->getErrors()
,但这些都是空的,因为无论用户输入如何,$form->isValid()
始终返回true
项目结构:
scratch.php
composer.json
您必须向表单字段附加一个或多个约束,如下所示:
use Symfony\Component\Validator\Constraints\Regex;
$formBuilder->add("amount", MoneyType::class, [
'currency' => 'USD',
'error_bubbling' => true,
'constraints' => [
new Regex(array('pattern'=>'/\d+(\.\d+)?/','message'=>'must be numeric')),
]
]);
然后,如果违反了约束,将显示消息“必须是数字”,并且您的表单将无效
此处定义了内置约束:
验证使用说明如下:
我发现我错过了比赛 然后我需要将表单添加到表单工厂
use Symfony\Component\Form\Extension\Validator\ValidatorExtension;
// create your form factory as normal
$formFactory = Forms::createFormFactoryBuilder()
...
->addExtension(new ValidatorExtension($validator))
...
这当然需要composer需要symfony/validator
所以,我不需要
$form->getErrors(true)
'error\u bubbling'=>true
{{form_errors(form)}}
scratch.php
composer.json
致命错误:未捕获异常“Symfony\Component\options resolver\exception\UndefinedOptionsException”,消息“选项“constraints”不存在。
验证程序组件是否仍存在此错误?感谢您再次签入,但此答案实际上存在很多问题。1) 您的use
语句有输入错误,应该是复数Constraint
而不是单数Constraint
。2) 它无法捕获字母字符-可能是因为默认的MoneyType验证器胜过它。3) 它在一个有效的数量上失败,例如“12.34”,并抛出一个PHP警告preg_match():分隔符不能是字母数字或反斜杠
您已经修复了1和3,但它仍然没有抛出“必须是数字”
消息。它会以默认值停止。此值无效。
“此值无效”是否写入{form_errors(form)}块?奇怪“scratch.php”文件的用途是什么?为什么不改为使用控制器文件?我只是想问一下,因为“scratch.php”文件中有很多似乎不必要的代码。。。您还将其放在文件夹pub
下,这不是Symfony标准。也许你这样创建项目是有原因的——你能解释一下吗?@AlvinBunk Standalone最小、完整、可验证的示例。我不是在使用框架,而是在用Symfony测试waters,因为组件被认为是模块化的。为什么不在您的用例中使用NumberType字段而不是MoneyType?@Alsatian,因为我处理的是货币,而不仅仅是数字,我想利用这个类的其他属性,比如国际货币兑换的包装器,而输入类型号实际上是我的核心问题。
{{ form_start(form) }}
{{ form_errors(form) }}
{{ form_widget(form) }}
<input type="submit" />
{{ form_end(form) }}
{
"require": {
"symfony/form": "^3.1",
"symfony/twig-bridge": "^3.1",
"symfony/translation": "^3.1",
"symfony/http-foundation": "^3.1"
}
}
use Symfony\Component\Validator\Constraints\Regex;
$formBuilder->add("amount", MoneyType::class, [
'currency' => 'USD',
'error_bubbling' => true,
'constraints' => [
new Regex(array('pattern'=>'/\d+(\.\d+)?/','message'=>'must be numeric')),
]
]);
use Symfony\Component\Validator\Validation;
// Set up the Validator component
$validator = Validation::createValidator();
use Symfony\Component\Form\Extension\Validator\ValidatorExtension;
// create your form factory as normal
$formFactory = Forms::createFormFactoryBuilder()
...
->addExtension(new ValidatorExtension($validator))
...
<?php require_once __DIR__.'/../vendor/autoload.php';
use Symfony\Component\Form\Forms;
use Symfony\Component\Form\Extension\Core\Type\MoneyType;
use Symfony\Component\Form\Extension\HttpFoundation\HttpFoundationExtension;
use Symfony\Component\Form\Extension\Validator\ValidatorExtension;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Component\Translation\Translator;
use Symfony\Component\Validator\Validation;
use Symfony\Bridge\Twig\Form\TwigRenderer;
use Symfony\Bridge\Twig\Form\TwigRendererEngine;
use Symfony\Bridge\Twig\Extension\FormExtension;
use Symfony\Bridge\Twig\Extension\TranslationExtension;
// the Twig file that holds all the default markup for rendering forms
// this file comes with TwigBridge
$defaultFormTheme = 'form_div_layout.html.twig';
$appVariableReflection = new \ReflectionClass('\Symfony\Bridge\Twig\AppVariable');
$vendorTwigBridgeDir = dirname($appVariableReflection->getFileName());
// the path to your other templates
$viewsDir = realpath(__DIR__.'/../views');
$twig = new Twig_Environment(new Twig_Loader_Filesystem(array(
$viewsDir,
$vendorTwigBridgeDir.'/Resources/views/Form',
)));
$formEngine = new TwigRendererEngine(array($defaultFormTheme));
$twig->addExtension(
new FormExtension(new TwigRenderer($formEngine))
);
$twig->addExtension(
new TranslationExtension(new Translator('en'))
);
$formEngine->setEnvironment($twig);
// Set up the Validator component
$validator = Validation::createValidator();
// create your form factory as normal
$formFactory = Forms::createFormFactoryBuilder()
->addExtension(new HttpFoundationExtension())
->addExtension(new ValidatorExtension($validator))
->getFormFactory();
$formBuilder = $formFactory->createBuilder();
$formBuilder->add("amount", MoneyType::class, [
'currency' => 'USD'
]);
$form = $formBuilder->getForm();
$request = Request::createFromGlobals();
$form->handleRequest($request);
if ($form->isValid()) {
die('valid form posted.');
}
$form->getErrors(true);
echo $twig->render('form.html.twig', array(
'form' => $form->createView(),
));
{{ form_start(form) }}
{{ form_widget(form) }}
<input type="submit" />
{{ form_end(form) }}
{
"require": {
"symfony/form": "^3.1",
"symfony/twig-bridge": "^3.1",
"symfony/translation": "^3.1",
"symfony/http-foundation": "^3.1"
"symfony/validator": "^3.1"
}
}