Question

我试图在symfony上创建一个包含子表单的简单表单。我的问题是，当我坚持并反对控制器时

$em->persist($professional);
foreach($form['degrees'] as $key){
  $degree = new ProfessionalDegree();
  $degree->setTitle($key['title']->getData());
  $degree->setPlace($key['place']->getData());
  $degree->setDateIn(new \DateTime($key['date_in']->getData()->format('Y-m-d')));
  $degree->setDateOut(new \DateTime($key['date_out']->getData()->format('Y-m-d')));
  $degree->setProfessional($professional);

  $em->persist($degree);
}
$em->flush()

数据库确实添加了两个字段，一个是专业版为NULL，另一个是良好关系：

// UPDATED //

Here is the ProfessionalExperience entity

/**
 * @ORM\Entity
 * @ORM\Table(name="professional_experience")
 */
class ProfessionalExperience
{
    /**
     * @ORM\Id
     * @ORM\Column(type="integer")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    public function __construct()
    {
    }     

    /**
     * @ORM\Column(type="string")
     *
     */
    private $company;

    /**
     * @ORM\Column(type="string")
     *
     */
    private $position;

    /**
     * @ORM\Column(type="date")
     *
     */
    private $date_in;


    /**
     * @ORM\Column(type="date")
     *
     */
    private $date_out;

    /**
     * @ORM\Column(type="string", nullable=true)
     *
     */
    private $country;

    /**
     * @ORM\Column(type="string", nullable=true)
     *
     */
    private $city;

    /**
     * @ORM\Column(type="text")
     *
     */
    private $description;

    /**
     * @ORM\ManyToOne(targetEntity="Professional", inversedBy="experiences", cascade={"persist"})
     * @ORM\JoinColumn(name="professional_id", referencedColumnName="id")
     */
    private $professional;

...

这是我的专业实体

class Professional extends User
{
    /**
     * @ORM\Id
     * @ORM\Column(type="integer")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    protected $id;

    public function __construct()
    {
        $this->followers = new \Doctrine\Common\Collections\ArrayCollection();
        $this->following = new \Doctrine\Common\Collections\ArrayCollection();
    }

    /**
     * @ORM\Column(type="string", length=255, nullable=false)
     */
    private $name;

...

/**
     * @ORM\OneToMany(targetEntity="ProfessionalDegree", mappedBy="professional", cascade={"all"})
     */
    private $degrees;

// EDITED 2 //

有我的表格：

    protected function editProfileFormProfessional($professional, $request) {

            $form = $this->createForm(ProfessionalType::class, $professional, [
            ... 
            $form->add('degrees', CollectionType::class, array(
                'entry_type'   => DegreeType::class,
                'allow_add'    => true,
                'allow_delete' => true,
            ));
if ($form->isSubmitted()) {

            if($form->isValid()){

                $em = $this->getDoctrine()->getManager();

                $professional->setName($form['name']->getData());
                $professional->setSurName($form['surname']->getData());
                $professional->setProfession($form['profession']->getData());
                $professional->setCountry($form['country']->getData());
                $professional->setProvince($form['province']->getData());
                $professional->setCity($form['city']->getData());
                $professional->setZipCode($form['zip_code']->getData());
                $professional->setBirthPlace($form['birth_place']->getData());
                $professional->setRefereeNumber($form['referee_number']->getData());
                $professional->setRefereePlace($form['referee_place']->getData());
                $professional->setAboutMe($form['about_me']->getData());

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

             foreach($form['degrees'] as $key){
                $degree = new ProfessionalDegree();
                $degree->setTitle($key['title']->getData());
                $degree->setPlace($key['place']->getData());
                $degree->setDateIn(new \DateTime($key['date_in']->getData()->format('Y-m-d')));
                $degree->setDateOut(new \DateTime($key['date_out']->getData()->format('Y-m-d')));
                $degree->setProfessional($professional);

                $em->persist($degree);
               }
             $em->flush();

请注意，PorfesionalDegree已全部级联，因为如果我不添加这些，我会有持续级联错误。

// EDITED 3

现在我知道错误在哪里，在所有集合之前调用句柄请求时，它会自己添加字段。但问题是专业人士仍然是NULL，我通过添加以下内容来修改我的表单：

->add('degrees', CollectionType::class, array(
            'entry_type'   => DegreeType::class,
            'allow_add'    => true,
            'allow_delete' => true,
            'by_reference' => false,
        ));

使用by_reference为false，它应该只是这样做，但仍然将专业设置为NULL。我已经按照Symfony在其指南中所说的那样：

https://symfony.com/doc/current/form/form_collections.html

但仍然没有

有谁知道为什么？谢谢

Answer 1

我认为你不需要在foreach循环之前刷新。

要正确调试，您可以观察循环中发生的事情：

foreach($form['degrees'] as $key){
            $degree = new ProfessionalDegree();
            $degree->setTitle($key['title']->getData());
            $degree->setPlace($key['place']->getData());
            $degree->setDateIn(new \DateTime($key['date_in']->getData()->format('Y-m-d')));
            $degree->setDateOut(new \DateTime($key['date_out']->getData()->format('Y-m-d')));
            $degree->setProfessional($professional);

            var_dump($degree->getId());
            var_dump($degree->getProfessional());

            $em->persist($degree);
           }

die();

在这里，您将更好地了解发生的事情并根据需要进行调试。

请不要像这样设置你的$ professional对象。使用：

$form->handleRequest($request);

最后使用FormType：http://symfony.com/doc/current/forms.html#creating-form-classes

祝你好运：）

持久化对象的Symfony错误

1 个答案: