php – Doctrine2 One-To-Many / Many-to-One关系

所以,1：M / M：1关系不像M：M关系那样工作(显然),但我认为通过适当的配置,你可以获得与M：M关系相同的输出.

基本上,我需要向path_offer添加另一个字段(位置).

我以为我开始工作,直到我尝试使用$path-> getOffers()返回一个PersistentCollection而不是我认为强制的(一个提供的ArrayCollection).无论如何,在当前表中,我有两个条目：两个提供到一个路径. $path-> getOffers()返回一个PathOffer的PersistantCollection,它只有一个Offer被附加,而不是两个.

我的问题是如何真正使用这些类型的关系？因为我需要这个项目的许多其他方面,我正在努力(许多M：M集合也需要定位)

我的代码如下！

Path.PHP

[..]

/**
 * @ORM\Entity
 * @ORM\Table(name="path")
 */
class Path
{
    /**
     * @var integer
     *
     * @ORM\Column(type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="IDENTITY")
     */
    protected $id;

    /**
     * @ORM\OneToMany(targetEntity="PathOffer",mappedBy="offer",cascade={"all"})
     */
    protected $offers;

[..]

PathOffer.PHP

[..]

/**
 * @ORM\Entity
 * @ORM\Table(name="path_offer")
 */
class PathOffer
{
    /**
     * @ORM\Column(type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="IDENTITY")
     */
    protected $id;

    /**
     * @ORM\ManyToOne(targetEntity="Path",inversedBy="offers",cascade={"all"})
     */
    protected $path;

    /**
     * @ORM\ManyToOne(targetEntity="Offer",cascade={"all"})
     */
    protected $offer;

    /**
     * @ORM\Column(type="integer")
     */
    protected $pos;

[..]

Offer.PHP

[..]

/**
 * @ORM\Entity
 * @ORM\Table(name="offer")
 */
class Offer
{
    /**
     * @var integer
     *
     * @ORM\Column(type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="IDENTITY")
     */
    protected $id;

    /**
     * @var \ZGoffers\MainBundle\Entity\PathOffer
     *
     * @ORM\OneToMany(targetEntity="PathOffer",mappedBy="path",cascade={"all"})
     */
    protected $paths;

[..]

我想到了.希望这篇文章可以帮助那些像我一样沮丧的人！

Path.PHP

<?PHP

namespace JStout\MainBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 * @ORM\Table(name="path")
 */
class Path
{
    /**
     * @var integer
     *
     * @ORM\Column(type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="IDENTITY")
     */
    private $id;

    /**
     * @var \JStout\MainBundle\Entity\PathOffer
     *
     * @ORM\OneToMany(targetEntity="PathOffer",cascade={"all"})
     * @ORM\OrderBy({"pos" = "ASC"})
     */
    private $offers;

    [...]

PathOffer.PHP

<?PHP

namespace JStout\MainBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

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

    /**
     * @ORM\ManyToOne(targetEntity="Path",cascade={"all"})
     */
    private $path;

    /**
     * @ORM\ManyToOne(targetEntity="Offer",inversedBy="paths",cascade={"all"})
     */
    private $offer;

    /**
     * @ORM\Column(type="integer")
     */
    private $pos;

    [...]

Offer.PHP

<?PHP

namespace JStout\MainBundle\Entity;

use Doctrine\ORM\Mapping as ORM;

/**
 * @ORM\Entity
 * @ORM\Table(name="offer")
 */
class Offer
{
    /**
     * @var integer
     *
     * @ORM\Column(type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="IDENTITY")
     */
    private $id;

    /**
     * @var \JStout\MainBundle\Entity\PathOffer
     *
     * @ORM\OneToMany(targetEntity="PathOffer",cascade={"all"})
     */
    private $paths;

    [...]

而对于我的前端逻辑：

PathController.PHP

<?PHP

    [...]

    /**
     * @Extra\Route("/path",name="admin_path")
     * @Extra\Route("/path/{id}/edit",name="admin_path_edit",requirements={"id" = "\d+"})
     * @Extra\Template()
     */
    public function pathAction($id = null)
    {
        $path = $this->_getObject('Path',$id); // this function either generates a new entity or grabs one from database depending on $id

        $form = $this->get('form.factory')->create(new Form\PathType(),$path);
        $formHandler = $this->get('form.handler')->create(new Form\PathHandler(),$form);

        // process form
        if ($formHandler->process()) {
            $this->get('session')->setFlash('notice','Successfully ' . ($this->_isEdit($path) ? 'edited' : 'added') . ' path!');
            return $this->redirect($this->generateUrl('admin_path'));
        }

        return array(
            'path' => $path,'form' => $form->createView(),'postUrl' => !$this->_isEdit($path) ? $this->generateUrl('admin_path') : $this->generateUrl('admin_path_edit',array('id' => $path->getId())),'paths' => $this->_paginate('Path'),'edit' => $this->_isEdit($path) ? true : false
        );
    }

    [...]

PathType.PHP(路径形式)

<?PHP

namespace JStout\MainBundle\Form;

use Symfony\Component\Form\AbstractType,Symfony\Component\Form\FormBuilder;

class PathType extends AbstractType
{
    public function buildForm(FormBuilder $builder,array $options)
    {
        $builder
            ->add('name')
            ->add('title')
            ->add('offers','collection',array(
                'type' => new PathOfferType(),'allow_add' => true,'allow_delete' => true
            ))
            ->add('active');
    }

    public function getDefaultOptions(array $options)
    {
        return array(
            'data_class' => 'JStout\MainBundle\Entity\Path'
        );
    }
}

PathOfferType.PHP(PathType的提供集合类型)

<?PHP

namespace JStout\MainBundle\Form;

use Symfony\Component\Form\AbstractType,Symfony\Component\Form\FormBuilder;

class PathOfferType extends AbstractType
{
    public function buildForm(FormBuilder $builder,array $options)
    {
        $builder
            ->add('offer','entity',array(
                'class' => 'JStout\MainBundle\Entity\Offer','query_builder' => function($repository) { return $repository->createQueryBuilder('o')->orderBy('o.name','ASC'); },'property' => 'name'
            )) 
            ->add('pos','integer');
    }

    public function getDefaultOptions(array $options)
    {
        return array(
            'data_class' => 'JStout\MainBundle\Entity\PathOffer'
        );
    }
}

PathHandler.PHP(我如何处理表单)

<?PHP

namespace JStout\MainBundle\Form;

use JStout\MainBundle\Component\Form\FormHandlerInterface,Symfony\Component\Form\Form,Symfony\Component\HttpFoundation\Request,Doctrine\ORM\EntityManager,JStout\MainBundle\Entity\Path;

class PathHandler implements FormHandlerInterface
{
    protected $form;
    protected $request;
    protected $entityManager;

    public function buildFormHandler(Form $form,Request $request,EntityManager $entityManager)
    {
        $this->form = $form;
        $this->request = $request;
        $this->entityManager = $entityManager;
    }

    public function process()
    {
        if ('POST' == $this->request->getMethod()) {
            // bind form data
            $this->form->bindRequest($this->request);

            // If form is valid
            if ($this->form->isValid() && ($path = $this->form->getData()) instanceOf Path) {
                // save offer to the database
                $this->entityManager->persist($path);

                foreach ($path->getOffers() as $offer) {
                    $offer->setPath($path);
                    $this->entityManager->persist($offer);
                }

                $this->entityManager->flush();

                return true;
            }
        }

        return false;
    }
}

原文链接：https://www.f2er.com/php/134349.html

php – Doctrine2 One-To-Many / Many-to-One关系

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