Question

我是Zend框架的新手，正在尝试在表单中的字段集中填充选择字段。我跟踪了各种链接，但似乎都没有成功。

我有两个表Item＆Category，类别ID作为外键存在于item表中。我正在尝试加载可用类别，以便在“编辑”或“添加”模式下进行选择。

我以这些为基础

字段集工厂

class ItemFieldsetFactory implements FactoryInterface {
    public function __invoke(ContainerInterface $container, $requestedName, array $options = null) {
        $category = $container->get(CategoryRepository::class);
        $categories = $category->findAllCategoriesAsArray();

        $fieldset = $container->get('FormElementManager')->get(\Form\ItemFieldset::class);
        $fieldset->setCategories($categories);

        return $fieldset;
    }
}

字段集

namespace Item\Form;

use Zend\Form\Fieldset;
use Zend\Form\Element\Select;
use Item\Model\Item;
use Zend\Hydrator\ReflectionHydrator as ReflectionHydrator;

class ItemFieldset extends Fieldset
{
    private $categories = [];

    public function setCategories(array $categories) {
         $this->categories = $categories;
    }


    public function init()
    {
        $this->setHydrator(new ReflectionHydrator());
    $this->setObject(new Item('', '', '', ''));

        $this->add([
           'type' => 'hidden',
           'name' => 'itemid',
        ]);

        $this->add([
           'type' => Select::class,
           'name' => 'categoryid',
           'options' => [
                'label' => 'Category',
                'value_options' => $this->categories
           ]
        ]);

        $this->add([
            'type' => 'text',
            'name' => 'description',
            'options' => [
                'label' => 'Description',
            ],
        ]);

        $this->add([
            'type' => 'text',
            'name' => 'size',
            'options' => [
                'label' => 'Size',
            ],
        ]);

    }
}

控制器工厂

public function __invoke(ContainerInterface $container, $requestedName, array $options = null)
    {
        $formManager = $container->get('FormElementManager');

        return new WriteController(
            $container->get(ItemCommandInterface::class),
            $formManager->get(ItemForm::class),
            $formManager->get(ItemFieldset::class),
            $container->get(ItemRepositoryInterface::class)
        );
    }
}

控制器

{
    private $command;
    private $form;
    private $fieldset;
    private $repository;

/**
 * @param ItemCommandInterface $command
 * @param ItemForm $form
 */
    public function __construct(
        ItemCommandInterface $command,
        ItemForm $form,
        ItemFieldset $fieldset,
        ItemRepositoryInterface $repository
    ) {
        $this->command = $command;
        $this->form = $form;
        $this->fieldset = $fieldset;
        $this->repository = $repository;
    }

    public function addAction()
{
    $req   = $this->getRequest();
    $viewModel = new ViewModel(['form' => $this->form]);

    if (! $req->isPost()) {
        return $viewModel;
    }

    $this->form->setData($req->getPost());

    if (! $this->form->isValid()) {
        return $viewModel;
    }

    $item = $this->form->getData();

    try {
        $item = $this->command->insertItem($item);
    } catch (\Exception $ex) {
        // An exception occurred; we may want to log this later and/or
        // report it to the user. For now, we'll just re-throw.
        throw $ex;
    }

    return $this->redirect()->toRoute(
        'item/detail',
        ['itemid' => $item->getItemId()]
    );
}

配置

namespace Item;

use Zend\Router\Http\Literal;
use Zend\Router\Http\Segment;
use Zend\Form;
use Zend\Fieldset;
use Zend\ServiceManager\Factory\InvokableFactory;

return [
    'service_manager' => [
..
    ],
    'controllers' => [
..
    ],
    'router' => [
..
    ],
    'form_elements' => [
        'factories' => [
            Form\ItemFieldset::class => Factory\ItemFieldsetFactory::class
        ]
    ],
    'view_manager' => [
        'template_path_stack' => [
            __DIR__ . '/../view',
        ],
    ],
];

我希望选择字段将包含所有可用类别（在编辑模式下选中当前类别）。

我只得到一个空白框

我认为我的ItemFieldsetFactory没有触发，但无法理解原因。我这样做的原因是，我现在试图通过调用不存在的方法以及通过vardump＆exit来停止。

任何建议/指导都非常感谢。

如何从数据库（MySQL）填充字段集中的选择元素

0 个答案: