注册自定义表单视图助手

使用ZF2，为自定义表单元素注册自定义视图帮助器非常简单。

您可以简单地创建这样一个元素:

use Zend'Form'Element;
class Recaptcha extends Element
{
    protected $attributes = [
        'type' => 'recaptcha',
    ];
    protected $secret;
    public function getSecret()
    {
        return $this->secret;
    }
    public function __construct($secret)
    {
        parent::__construct();
        $this->secret = $secret;
    }
}

创建一个匹配的helper:

use Zend'Form'ElementInterface;
use Zend'Form'View'Helper'FormElement;
class Recaptcha extends FormElement
{
    public function render(ElementInterface $element)
    {
        return '<div class="form-group">
            <div id="register_recaptcha">
                <div class="g-recaptcha" data-sitekey="' . $element->getSecret() . '"></div>
            </div>
        </div>
        <script src="//www.google.com/recaptcha/api.js"></script>';
    }
}

return [
    'form_elements' => [
        'factories' => [
            Recaptcha::class => RecaptchaFactory::class,
        ],
    ],
    'view_helpers' => [
        'invokables' => [
            'recaptcha' => RecaptchaHelper::class,
        ],
    ],
];

IIRC，你也必须在Bootstrap中连接它

public function onBootstrap($e)
{
    $application = $e->getApplication();
    $services = $application->getServiceManager();
    $services->get('ViewHelperManager')->get('FormElement')->addType('recaptcha', 'recaptcha');
}

将项目从ZF2升级到ZF3，自定义元素现在显示为文本字段。

如果我直接在字段上调用帮助器，它会正确呈现:

{{ recaptcha( user_form.get('recaptchafield') ) | raw }}

这种自动关联似乎已经消失了。这样调用formRow就不会调用helper。

谁有快速修复?希望节省我自己从审查实际的zend-form和zend-view代码。

谢谢!