Question

我试图将表单中的INSERT值转换为DB，我的一个表单字段是brand_id，它在提交时返回NULL。

有两个实体具有多对一关系

品牌
id
名称

模型
ID
brand_id（FK）
名
IMAGE_URL
评论

所有字段都返回一个值，但brand_id返回NULL

代码和实体如下：

品牌实体：

<?php
// src/coreBundle/Entity/Brand.php
namespace coreBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use coreBundle\Entity\Model;
use Doctrine\Common\Collections\ArrayCollection;

/**
*@ORM\Entity
*@ORM\Table(name="brand")
*/
class brand
{


    /**
     * @var int
     * @ORM\Id
     * @ORM\Column(name="id", type="integer")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
public $id;

    /**
    *@ORM\Column(type="string", length=100)
    */
    private $name;

    /**
     *@ORM\OneToMany(targetEntity="model", mappedBy="brands")
     */
    protected $models;
    public function __construct()
    {
        $this->models = new ArrayCollection();
    }

    /**
     * Get id
     *
     * @return integer
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * Set name
     *
     * @param string $name
     *
     * @return brand
     */
    public function setName($name)
    {
        $this->name = $name;

        return $this;
    }

    /**
     * Get name
     *
     * @return string
     */
    public function getName()
    {
        return $this->name;
    }



    /**
     * Add model
     *
     * @param \coreBundle\Entity\model $model
     *
     * @return brand
     */
    public function addModel(\coreBundle\Entity\model $model)
    {
        $this->models[] = $model;

        return $this;
    }

    /**
     * Remove model
     *
     * @param \coreBundle\Entity\model $model
     */
    public function removeModel(\coreBundle\Entity\model $model)
    {
        $this->models->removeElement($model);
    }

    /**
     * Get models
     *
     * @return \Doctrine\Common\Collections\Collection
     */
    public function getModels()
    {
        return $this->models;
    }
}

模型实体：

<?php
// src/coreBundle/Entity/Model.php
namespace coreBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use coreBundle\Entity\Brand;

/**
*@ORM\Entity
*@ORM\Table(name="model")
*/
class model
{

/**
     * @var int
     * @ORM\Id
     * @ORM\Column(name="id", type="integer")
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    public $id;

/**
    *@ORM\Column(type="integer")
    */
    public $brand_id;


    /**
    *@ORM\Column(type="string", length=100)
    */
    private $name;

    /**
    *@ORM\Column(type="string", length=100)
    */
    private $image_url;

    /**
    *@ORM\Column(type="string", length=200)
    */
    private $comment;

/**
    *@ORM\ManyToOne(targetEntity="brand", inversedBy="models")
    *@ORM\JoinColumn(name="brand_id", referencedColumnName="id")
    */
    protected $brands;

/**
     * @ORM\OneToOne(targetEntity="model_item", mappedBy="models")
     */
    private $model_items;

    /**
     * Get id
     *
     * @return integer
     */
    public function getId()
    {
        return $this->id;
    }

    /**
     * Set brandId
     *
     * @param integer $brandId
     *
     * @return model
     */
    public function setBrandId($brandId)
    {
        $this->brand_id = $brandId;

        return $this;
    }

    /**
     * Get brandId
     *
     * @return integer
     */
    public function getBrandId()
    {
        return $this->brand_id;
    }

    /**
     * Set name
     *
     * @param string $name
     *
     * @return model
     */
    public function setName($name)
    {
        $this->name = $name;

        return $this;
    }

    /**
     * Get name
     *
     * @return string
     */
    public function getName()
    {
        return $this->name;
    }

    /**
     * Set imageUrl
     *
     * @param string $imageUrl
     *
     * @return model
     */
    public function setImageUrl($imageUrl)
    {
        $this->image_url = $imageUrl;

        return $this;
    }

    /**
     * Get imageUrl
     *
     * @return string
     */
    public function getImageUrl()
    {
        return $this->image_url;
    }

    /**
     * Set comment
     *
     * @param string $comment
     *
     * @return model
     */
    public function setComment($comment)
    {
        $this->comment = $comment;

        return $this;
    }

    /**
     * Get comment
     *
     * @return string
     */
    public function getComment()
    {
        return $this->comment;
    }



    /**
     * Set brands
     *
     * @param \coreBundle\Entity\brand $brands
     *
     * @return model
     */
    public function setBrands(\coreBundle\Entity\brand $brands = null)
    {
        $this->brands = $brands;

        return $this;
    }

    /**
     * Get brands
     *
     * @return \coreBundle\Entity\brand
     */
    public function getBrands()
    {
        return $this->brands;
    }


}

我的控制器代码：

public function newModelAction(Request $request)
    {
        $product = $this->getDoctrine()
        ->getRepository('coreBundle:brand')
        ->findAll();


        if (!$product) {
            throw $this->createNotFoundException(
                'No product found for id '.$productId
                );
        }

        $model = new model();
        $form = $this->createFormBuilder($model)
        ->add('brand_id',TextType::class,array('label'=>'Brand Id'))
        ->add('name',TextType::class,array('label'=>'Model Name'))
        ->add('comment',TextType::class,array('label'=>'Comments'))
        ->add('image_url',TextType::class,array('label'=>'Image URL'))
        ->add('save',SubmitType::class, array('label'=>'Add Model'))
        ->getForm();


        $form->handleRequest($request);
        if ($form->isSubmitted() && $form->isValid()) {

            $em = $this->getDoctrine()->getManager();
            $em->persist($model);
            $em->flush();
            return $this->render('coreBundle:layouts:newItem.html.twig',
                array('form'=>$form->createView(),));
        }


        // ... do something, like pass the $product object into a template
        return $this->render('coreBundle:layouts:newModel.html.twig',
            array('form'=>$form->createView(),));

    }

Answer 1

尝试删除此内容：

   *@ORM\Column(type="integer")
   */
   public $brand_id;

因为在这一点上你已经有了品牌领域：

    /**
    *@ORM\ManyToOne(targetEntity="brand", inversedBy="models")
    *@ORM\JoinColumn(name="brand_id", referencedColumnName="id")
    */
    protected $brands;

您还需要删除brandId的getter和seeter，并从表单中删除brand_id并添加以下内容：

       ->add('brand', EntityType::class, array(
            // query choices from this entity
            'class' => 'AppBundle:Brand',
        ))

Answer 2

试试这个

/**
*@ORM\ManyToOne(targetEntity="brand")
*@ORM\JoinColumn(nullable=false)
*/
protected $brands;

Symfony 3.3 Form为一个字段返回NULL

2 个答案: