Symfony 3-表单集合仅将数据发送到一张表中

Question

我正在与2个相关实体一起运行Symfony 3.4-具有OneToMany关系的Entry和Track。我已经通过this arcticle-我能够将ArrayCollection添加到Entry表，但是没有添加到Track表。

为了方便阅读，我试图排除尽可能多的无关代码。

条目

<?php

namespace Blogger\BlogBundle\Entity;

use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 * @ORM\Table(name="`workshop_entry`")
 */
class Entry
{
private $id;

/**
 * @ORM\OneToMany(targetEntity="Blogger\BlogBundle\Entity\Track", cascade={"persist"})
 */
private $tracklist;

public function __construct()
{
    $this->tracklist = new ArrayCollection();
}

public function getId()
{
    return $this->id;
}

public function getTracklist()
{
    return $this->tracklist;
}

public function addTrack(Track $track) {
    $this->tracklist->add($track);
}

public function removeTrack(Track $track) {
    $this->tracklist->removeElement($track);
}
}

Track

<?php

namespace Blogger\BlogBundle\Entity;

use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\ORM\Mapping as ORM;

/**
 * Track
 */
class Track
{
/**
 * @var int
 * @ORM\Id
 * @ORM\GeneratedValue(strategy="AUTO")
 * @ORM\Column(type="integer")
 */
protected $id;

/**
 * @var string
 * @ORM\Column(type="string")
 */
protected $name;

EntryType

    class EntryType extends AbstractType
{
    /**
     * {@inheritdoc}
     */
    public function buildForm(FormBuilderInterface $builder, array $options)
    {
        $builder->add('tracklist', CollectionType::class, [
                'entry_type' => TrackType::class,
                'entry_options' => ['label' => false],
                'allow_add' => true,
                'by_reference' => false,
                'allow_delete' => true,
                'mapped' => false,
            ])
            ->add('submit', SubmitType::class);

EntryController

public function createAction(Request $request)
    {
        $reviewEntry = new Entry();

        $form = $this->createForm(EntryType::class, $reviewEntry, ['action' => $request->getUri()]);
        $form->handleRequest($request);

        //Validates the form
        if($form->isValid())
            //
        $em->persist($reviewEntry);

        $em->flush();
    }

    return $this->render('BloggerBlogBundle:Blog:create.html.twig', ['form'=>$form->createView()]);
  }

Answer 1

尝试将@ORM\Entity添加到您的Track实体并运行迁移