4

这源于这个问题,但我的问题略有改变:Odd many-to-many form rendering with symfony and dictionary

我的实体是 Formula 一对多与 FormulaColor 多对一与 Color。

公式(id、代码、名称) FormulaColor(formula_id、color_id、百分比) 颜色(id、代码、名称)

一个公式可以有一种或多种颜色,每种颜色占该公式的百分比。

我正在尝试创建一个公式编辑类型,它将显示给定公式的百分比字段以及每个百分比字段的标签或标题,即标签的颜色->名称。我已经显示了公式的百分比字段,但我想用颜色名称标记每个字段。我怎样才能做到这一点?我必须以某种方式使用查询构建器吗?

我有一个看起来像这样的 FormulaAddEditType:

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
        ->add('code', null, array(
                'label' => 'Code'
            ))
        ->add('name', null, array(
                'label' => 'Name'
            ));

    $builder->add('formulaColors', 'collection', array(
            'type' => new FormulaColorType(),
            'allow_add' => true,
            'allow_delete' => true,
            'prototype' => true,
        ));
}

然后是 FormulaColorType:

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder->add('percentage', 'number', array(
            'label' => new ColorAddEditType()
        ));
}

颜色添加编辑类型

public function buildForm(FormBuilderInterface $builder, array $options)
{
    $builder
        ->add('code', null, array(
                'label' => 'Code'
            ))
        ->add('name', null, array(
                'label' => 'Name'
            ))
    ;
}

控制器动作

/**
 * @Route("/formulas/{id}/edit")
 * @Method({"GET", "POST"})
 * @Template()
 */
public function editAction(Request $request, $id)
{
    $em = $this->getDoctrine()->getManager();

    $formula = $em->getRepository('PrismPortalCommonBundle:Formula')->find($id);

    if (!$formula) {
        throw $this->createNotFoundException('Unable to find Formula entity.');
    }

    $form = $this->createForm(new FormulaAddEditType(), $formula);

    if ($request->isMethod('POST')) {
        $form->bind($request);

        if ($form->isValid()) {

            $em->persist($formula);
            $em->flush();

            return $this->redirect($this->generateUrl('prism_portal_admin_dashboard_index'));
        }
    }

    return array(
        'formula' => $formula,
        'form' => $form->createView()
    );
}

我能够在表单事件订阅者中获得我想要的结果。订阅者如下所示:

class AddPercentFieldSubscriber implements EventSubscriberInterface
{
    public static function getSubscribedEvents()
    {
        // Tells the dispatcher that you want to listen on the form.pre_set_data
        // event and that the preSetData method should be called.
        return array(FormEvents::PRE_SET_DATA => 'preSetData');
    }

    public function preSetData(FormEvent $event)
    {
        $data = $event->getData();
        $form = $event->getForm();

        // If it's not a new Formula, then I want to show the percentage fields.
        if ($data) {
            $form->add('percentage', 'text', array(
                    'label' => $data->getColor()->getCode(),
                ));
        }
    }
}
4

1 回答 1

3

我对您的实体的外观做了一些猜测,但我认为这大致是您想要的,例如:

公式添加编辑类型

    public function buildForm(FormBuilderInterface $builder, array $options) {

    $entity=$builder->getData();
    $colors=$entity->getColors());

    $builder
    ->add('code', null, array(
        'label' => 'Code'
        ))
    ->add('name', null, array(
        'label' => 'Name'
        ));

    $colors->map(function ($color) use ($builder) {
        $builder->add($color->getName()
            , null, 
            array(
                'label' => $color->getName()
                )
            )
    });
}
于 2013-05-02T17:41:32.183 回答