如何在我的PHP应用程序中使用ZF2表单作为独立模块？

Question

Looking at any kind of basic example on ZF2 forms, I have something like this:

In Controller (any basic tutorial example)

    $username = new Element\Text('username');
    $username->setLabel('Username')->setAttributes(array(
        'class' => 'username',
        'size' => '30'
    ));

    $form = new Form('my-form');
    $form->add($username);
    return $this->partial("xxx.phtml", array(
        'form' => $form
    ));

In View

/**
 * inside view template
 *
 * @var \Zend\View\Renderer\PhpRenderer $this
 */
echo $this->form($this->form);

Error I get

PHP Fatal error:  Uncaught exception 'Zend\ServiceManager\Exception\ServiceNotFoundException' with message 'Zend\View\HelperPluginManager::get was unable to fetch or create an instance for form' in vendor\zendframework\zend-servicemanager\src\ServiceManager.php:557
Stack trace:
#0 vendor\zendframework\zend-servicemanager\src\AbstractPluginManager.php(161): Zend\ServiceManager\ServiceManager->get('form', true)
#1 vendor\zendframework\zend-view\src\Renderer\PhpRenderer.php(372): Zend\ServiceManager\AbstractPluginManager->get('form', NULL)
#2 vendor\zendframework\zend-view\src\Renderer\PhpRenderer.php(390): Zend\View\Renderer\PhpRenderer->plugin('form')
#3 module\XXX\view\xxx\xxx.phtml(8): Zend\View\Renderer in vendor\zendframework\zend-servicemanager\src\ServiceManager.php on line 557

I suspect that some fundamental plugin is not set up. Perhaps even the service that must register the plugin is not set up (ServiceManager)

What can I do to get ZF2 forms working in my otherwisely non-ZF2 app?

My intent is to use ZF2 form component to build forms, and to use them in my php application.

Answer 1

As you are not using the full application, the ViewPluginManager will not be provided with the names of the form view helpers by default; as they live the Zend\Form\View namespace.

You can easily register the missing services with a few lines best placed in your 'render factory' if you have one.

$viewPluginManager = $render->getHelperPluginManager();

$formConfig = new \Zend\Form\View\HelperConfig();
$formConfig->configureServiceManager($viewPluginManager);

echo $render->form($this->form);