PHP Zend Framework 2 - 呈现表单时出现问题 - "form plugin not found"

Question

我在使用 ZF2 呈现表单时遇到问题。我正在逐字逐句地阅读“Zend Framework 2.0 by Example”一书。问题是，在相应 View 中呈现表单时，弹出以下错误:

A plugin by the name "form" was not found in the plugin manager Zend\View\HelperPluginManager

我在这里和 ZF 论坛上遇到过所有类型的错误，但我找不到我的问题的答案，所以我别无选择。

相关文件如下:

// Module.php
namespace Users;

use Zend\ModuleManager\Feature\AutoloaderProviderInterface;
use Zend\ModuleManager\Feature\ConfigProviderInterface;

class Module implements AutoloaderProviderInterface, ConfigProviderInterface {

    public function getAutoloaderConfig() {
        return [
            'Zend\Loader\ClassMapAutoloader' => [
                __DIR__ . '/autoload_classmap.php',
            ],
            'Zend\Loader\StandardAutoloader' => [
                'namespaces' => [
                    __NAMESPACE__ => __DIR__ . '/src/' . __NAMESPACE__,
                ],
            ],
        ];
    }

    public function getConfig() {
        return include __DIR__ . '/config/module.config.php';
    }

}


//module.config.php
namespace Users;

return [
    'controllers' => [
        'invokables' => [
            'Users\Controller\Index' => 'Users\Controller\IndexController',
            'Users\Controller\Register' => 'Users\Controller\RegisterController',
        ]
    ],
    'router' => [
        'routes' => [
            'users' => [
                'type' => 'literal',
                'options' => [
                    'route' => '/users',
                    'defaults' => [
                        'controller' => 'Users\Controller\Index',
                        'action' => 'index',
                    ],
                ],
                'may_terminate' => true,
                'child_routes' => [
                    'register' => [
                        'type' => 'segment',
                        'options' => [
                            'route' => '/register[/:action]',
                            'constraints' => [
                                'action' => '[a-zA-Z][a-zA-Z0-9_-]*',
                            ],
                            'defaults' => [
                                'controller' => 'Users\Controller\Register',
                                'action' => 'index',
                            ],
                        ],
                    ],
                    'index' => [
                        'type' => 'segment',
                        'options' => [
                            'route' => '/index[/:action]',
                            'constraints' => [
                                'action' => '[a-zA-Z][a-zA-Z0-9_-]*',
                            ],
                            'defaults' => [
                                'controller' => 'Users\Controller\Index',
                                'action' => 'index',
                            ],
                        ],
                    ],
                ],
            ],
        ],
    ],
    'view_manager' => [
        'template_path_stack' => [
            'users' => __DIR__ . '/../view',
        ],
    ],
    'service_manager' => array(
        'factories' => array(
            'convertercontent' => 'Zend\Form\Factory'
        ),
    ),
];

//RegisterForm.php
namespace Users\Form;

use Zend\Form\Form;
use Zend\Validator\EmailAddress;

class RegisterForm extends Form {
    public function __construct($name = null) {
        parent::__construct('register');
        $this->setAttribute('method', 'post');
        $this->setAttribute('enctype', 'multipart/form-data');

        $this->add([
            'name' => 'name',
            'attributes' => [
                'type' => 'text',
            ],
            'options' => [
                'label' => 'Full Name',
            ]
        ]);

        $this->add([
            'name' => 'email',
            'attributes' => [
                'type' => 'email',
                'required' => 'required',
                'id' => 'email',
            ],
            'options' => [
                'label' => 'Password',
            ],
            'filters' => [
                [
                    'name' => 'StringTrim',
                ],
            ],
            'validators' => [
                [
                    'name' => 'EmailAddress',
                    'options' => [
                        'messages' => [
                            EmailAddress::INVALID_FORMAT => 'Email address format is invalid',
                        ],
                    ],

                ],
            ],
        ]);

        $this->add([
            'name' => 'password',
            'attributes' => [
                'type' => 'password',
                'required' => 'required',
                'id' => 'password',
            ],
            'options' => [
                'label' => 'Password',
            ],
            'filters' => [
                [
                    'name' => 'StringTrim',
                ],
            ],
        ]);

        $this->add([
            'name' => 'confirm_password',
            'attributes' => [
                'type' => 'password',
                'required' => 'required',
                'id' => 'confirm_password',
            ],
            'options' => [
                'label' => 'Confirm password',
            ],
            'filters' => [
                [
                    'name' => 'StringTrim',
                ],
            ],
        ]);

        $this->add([
            'name' => 'submit',
            'attributes' => [
                'type' => 'button',
                'id' => 'submit',
            ],
            'options' => [
                'label' => 'Submit',
            ],
        ]);
    }
}

//RegisterController.php
namespace Users\Controller;

use Zend\Mvc\Controller\AbstractActionController;
use Zend\View\Model\ViewModel;
use Users\Form\RegisterForm;

class RegisterController extends AbstractActionController {

    public function indexAction(){        
        $form = new RegisterForm();
        $viewModel = new ViewModel(array('form' => $form));
        return $viewModel;
    }

    public function confirmAction() {
        $viewModel = new ViewModel();
        return $viewModel;
    }
}

// register view index "index.phtml" (form page)
<section class="register">
    <h2>Register</h2>
    <?php if ($this->error): ?>
        <p class="error">
            There were one or more issues with your submission.
            Please correct them as
            indicated below.
        </p>
    <?php endif
    ?>

        <?php        
        $form = $this->form;    
        $form->setAttribute('action', $this->url());    
        $form->prepare();    

    $form = $this->form;    
    $form->setAttribute('action', $this->url(NULL, array('controller' => 'Register', 'action' => '    process')));
    $form->setAttribute('method', 'post');
    echo $this->form()->openTag($form);
    ?> 

    <dl class="zend_form">
        <dt><?php echo $this->formLabel($form->get('name')); ?></dt>
        <dd><?php
            echo $this->formElement($form->get('name'));
            echo $this->formElementErrors($form->get('name'));
            ?></dd>
        <dt><?php echo $this->formLabel($form->get('email')); ?></
        dt>
        <dd><?php
            echo $this->formElement($form->get('email'));
            echo $this->formElementErrors($form->get('email'));
            ?></dd>
        <dt><?php echo $this->formLabel($form->get('password'));
            ?></dt>
        <dd><?php
            echo $this->formElement($form->get('password'));
            echo $this->formElementErrors($form->get('password'));
            ?></dd>
        <dt><?php echo $this->formLabel($form->get('confirm_
password')); ?></dt>
        <dd><?php
            echo $this->formElement($form->get('confirm_password'));
            echo $this->formElementErrors($form->get('confirm_
password'));
            ?></dd>
        <dd><?php
            echo $this->formElement($form->get('submit'));
            echo $this->formElementErrors($form->get('submit'));
            ?></dd>
    </dl>

    <?php echo $this->form()->closeTag(); ?>

似乎没有加载 View 的表单插件，但我不知道如何加载它或任何其他方法来解决这个问题。

Answer 1

编辑 modules.config.php 文件，可以在 config/ 目录下找到并添加以下行:

'Zend\Form'

像这样:

return [
  'Zend\Form',
  'Zend\Db',
  'Zend\Router',
  'Zend\Validator',
  'Application',
];