Zend Framework 2 - 编写和设置一个好的 InputFilter

Question

我正在 ZF2 站点中创建一个表单，在这里我已经解决了许多问题： Zend Framework 2 - Submitting a form（也可以在此处找到代码）。
现在我有另一个问题：在我的控制器中，form->isValid() 无论如何都会返回 true。我的目标是通过 PHP 进行验证，然后通过 Ajax 告诉用户一切是否正常。我想我的 InputFilter 出了点问题，或者它没有正确附加到我的表单。
有什么建议么？提前致谢。

Answer 1

也解决了这个问题。 将所有验证器与表单放在同一个类中就可以了；这是（糟糕的）官方文档和这里和其他地方的一些论坛主题的混合体。表单类现在看起来是这样的：

<?php
namespace Site\Form;

use Zend\Form\Form;
use Zend\Form\Element;
use Zend\InputFilter\Input;
use Zend\InputFilter\InputFilter;
use Zend\Validator;

class ContactForm extends Form {
    public function __construct($name=null, $options=array ()) {
        parent::__construct ($name, $options);

        $this->setAttributes(array(
            "action" => "./",
        ));


        $nameInput = new Element\Text("nome");
        $nameInput->setAttributes(array(
            "placeholder" => "Nome e cognome",
            "tabindex" => "1"
        ));

        $this->add($nameInput);

        $emailInput = new Element\Text("email");
        $emailInput->setAttributes(array(
            "placeholder" => "Indirizzo e-mail",
            "tabindex" => "2"
        ));

        $this->add($emailInput);

        $phoneInput = new Element\Text("phone");
        $phoneInput->setAttributes(array(
            "placeholder" => "Numero di telefono",
            "tabindex" => "3",
        ));

        $this->add($phoneInput);

        $messageArea = new Element\Textarea("messaggio");
        $messageArea->setAttributes(array(
            "placeholder" => "Scrivi il tuo messaggio",
            "tabindex" => "4"
        ));

        $this->add($messageArea);

        $submitButton = new Element\Button("submit");
        $submitButton
            ->setLabel("Invia messaggio")
            ->setAttributes(array(
                "type" => "submit"
            ));

        $this->add($submitButton);

        $resetButton = new Element\Button("reset");
        $resetButton
        ->setLabel("Cancella")
        ->setAttributes(array(
                "type" => "reset"
        ));

        $this->add($resetButton);

        $inputFilter = new InputFilter();

        $nome = new Input("nome");
        $nome->getValidatorChain()
        ->attach(new Validator\StringLength(3));

        $email = new Input("email");
        $email->getValidatorChain()
        ->attach(new Validator\EmailAddress());

        $phone = new Input("phone");
        $phone->getValidatorChain()
        ->attach(new Validator\Digits());

        $message = new Input("messaggio");
        $message->getValidatorChain()
        ->attach(new Validator\StringLength(10));

        $inputFilter->add($nome)
                    ->add($email)
                    ->add($phone)
                    ->add($message);

        $this->setInputFilter($inputFilter);
    }
}
?>

我稍后会尝试工厂，但现在，这可行。