Question

我有3个实体：User，Report和ReportCategory。用户可以将报告放在一个ReportCategory中。在用户实体中有一个列表，允许用户使用ReportCategories。这很好用 - 我使用了一个具有userID和reportCategoryId的connectionTable。

现在我在Controller中创建一个数组，以获取当前登录用户的所有ReportCategories：

public function newAction()
    {
        $entity = new Report();
        $form   = $this->createCreateForm($entity);

        $userId = $this->get('security.context')->getToken()->getUser()->getId();
        $user = $this->getDoctrine()->getRepository('MyBundle:User')->find($userId);
        $userReportCategories = array();

        foreach($user->getReportCategories() as $reportCategory)
        {
            $userReportCategories[] = $reportCategory->getId();
        }

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

如何只将这些值设置为我的树枝模板字段？当我创建一个自己的字段时，它不是由Doctrine管理的！

{{ form_row(form.reportCategory, {'attr': {'class': 'form-control'}, 'label': 'Category'}) }}

感谢任何帮助!!!

更新：我的ReportType如下所示：

class ReportType extends AbstractType
{
    /**
     * @param FormBuilderInterface $builder
     * @param array $options
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder
            ->add('reportCategory')
            ->add('creationDate', 'date', array(
                'data' => new \DateTime()
            ))
            ->add('headline')
            ->add('text')
            ->add('user')

        ;
    }
....

Answer 1

创建表单类并添加事件侦听器，以便表单知道用户。以下是Symfony文档中How to dynamically Generate Forms Based on user Data的改编。 [无法保证准确捕捉您的需求]。

表单类

use Symfony\Component\Security\Core\SecurityContext;
use Doctrine\ORM\EntityRepository;
// ...

class ReportFormType extends AbstractType
{
    private $securityContext;

    public function __construct(SecurityContext $securityContext)
    {
        $this->securityContext = $securityContext;
    }

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


        // grab the user, do a quick sanity check that one exists
        $user = $this->securityContext->getToken()->getUser();
        if (!$user) {
            throw new \LogicException(
                'The ReportFormType cannot be used without an authenticated user!'
            );
        }

        $builder->addEventListener(
            FormEvents::PRE_SET_DATA,
            function (FormEvent $event) use ($user) {
                $form = $event->getForm();

                $formOptions = array(
                    'class' => 'Acme\DemoBundle\Entity\ReportCategory',
                    'property' => 'category',
                    'query_builder' => function (EntityRepository $er) use ($user) {
                        // build a custom query
                        // return $er->createQueryBuilder('c')
                        ->select('category')
                        ->where('user = $user);
                    },
                );

                // create the field, this is similar the $builder->add()
                // field name, field type, data, options
                $form->add('userReportCategories', 'entity', $formOptions);
            }
        );
    }

    // ...
}

新动作

public function newAction()
    {
        $entity = new Report();
        $form   = $this->createForm(new ReportFormType(), $entity);

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

Symfony2 / Twig：如何将允许的值设置为dropDownField

1 个答案:

表单类

新动作