我有三个实体Post Caroussel和CarousselImg。
哪个Carousel实体与post_id的Post实体相关
CarousselImg实体与caroussel_id的Caroussel实体相关。
多元一对多与一对多的关系是由学说产生的。
问题在于我尝试添加包含caroussel [包含carousselimg]的帖子。
该物业＆＃34; carousselImgs＆＃34;在课堂上＃34; AppBundle \ Entity \ Caroussel＆＃34;可以用方法定义＆＃34; addCarousselImg（）＆＃34;，＆＃34; removeCarousselImg（）＆＃34;但新值必须是\ Traversable的数组或实例，＆＃34; AppBundle \ Entity \ CarousselImg＆＃34;给出。
这是我在Post Type
中的caroussel部分->add('caroussels',CollectionType::class, array(
'entry_type' => CarousselType::class,
'allow_add' => true,
'delete_empty'=>true,
'by_reference' => false,
'prototype' => true,
'entry_options' => array(
'attr' => array('class' => 'caroussels-box')
),
)
)
这是Caroussel Type中的carousselImg部分
$builder->add('title')->add('carousselImgs', new CarousselImgType());
感谢您的帮助
<?php
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* CarousselImg
*
* @ORM\Table(name="caroussel_img")
* @ORM\Entity(repositoryClass="AppBundle\Repository\CarousselImgRepository")
*/
class CarousselImg
{
/**
* @var int
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
*
* @ORM\Column(name="imgUrl", type="string", length=255)
*/
private $imgUrl;
/**
* @var string
*
* @ORM\Column(name="description", type="text", nullable=true)
*/
private $description;
/**
* @ORM\ManyToOne(targetEntity="Caroussel", inversedBy="carousselImgs" )
* @ORM\JoinColumn(name="caroussel_id", referencedColumnName="id")
*/
private $caroussel;
public function __toString()
{
return $this->id;
}
/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set imgUrl
*
* @param string $imgUrl
* @return CarousselImg
*/
public function setImgUrl($imgUrl)
{
$this->imgUrl = $imgUrl;
return $this;
}
/**
* Get imgUrl
*
* @return string
*/
public function getImgUrl()
{
return $this->imgUrl;
}
/**
* Set description
*
* @param string $description
* @return CarousselImg
*/
public function setDescription($description)
{
$this->description = $description;
return $this;
}
/**
* Get description
*
* @return string
*/
public function getDescription()
{
return $this->description;
}
/**
* Set caroussel
*
* @param \AppBundle\Entity\Caroussel $caroussel
* @return CarousselImg
*/
public function setCaroussel(\AppBundle\Entity\Caroussel $caroussel = null)
{
$this->caroussel = $caroussel;
return $this;
}
/**
* Get caroussel
*
* @return \AppBundle\Entity\Caroussel
*/
public function getCaroussel()
{
return $this->caroussel;
}
}
<?php
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/**
* Caroussel
*
* @ORM\Table(name="caroussel")
* @ORM\Entity(repositoryClass="AppBundle\Repository\CarousselRepository")
*/
class Caroussel
{
/**
* @var int
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
*
* @ORM\Column(name="title", type="string", length=255, nullable=true)
*/
private $title;
/**
* @ORM\ManyToOne(targetEntity="Post", inversedBy="caroussels" )
* @ORM\JoinColumn(name="post_id", referencedColumnName="id")
*/
private $post;
/**
* @ORM\OneToMany(targetEntity="CarousselImg", mappedBy="caroussel", cascade={"persist"} )
*/
private $carousselImgs;
public function __construct()
{
$this->carousselImgs = new ArrayCollection();
}
public function __toString()
{
return $this->title;
}
/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set title
*
* @param string $title
* @return Caroussel
*/
public function setTitle($title)
{
$this->title = $title;
return $this;
}
/**
* Get title
*
* @return string
*/
public function getTitle()
{
return $this->title;
}
/**
* Set post
*
* @param \AppBundle\Entity\Post $post
* @return Caroussel
*/
public function setPost(\AppBundle\Entity\Post $post = null)
{
$this->post = $post;
return $this;
}
/**
* Get post
*
* @return \AppBundle\Entity\Post
*/
public function getPost()
{
return $this->post;
}
/**
* Add carousselImgs
*
* @param \AppBundle\Entity\CarousselImg $carousselImgs
* @return Caroussel
*/
public function addCarousselImg(\AppBundle\Entity\CarousselImg $carousselImgs)
{
$carousselImgs->setCaroussel($this);
$this->carousselImgs[] = $carousselImgs;
return $this;
}
/**
* Remove carousselImgs
*
* @param \AppBundle\Entity\CarousselImg $carousselImgs
*/
public function removeCarousselImg(\AppBundle\Entity\CarousselImg $carousselImgs)
{
$this->carousselImgs->removeElement($carousselImgs);
}
/**
* Get carousselImgs
*
* @return \Doctrine\Common\Collections\Collection
*/
public function getCarousselImgs()
{
return $this->carousselImgs;
}
}
<?php
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
/**
* Post
*
* @ORM\Table(name="post")
* @ORM\Entity(repositoryClass="AppBundle\Repository\PostRepository")
*/
class Post
{
/**
* @var int
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
*
* @ORM\Column(name="title", type="string", length=255, nullable=true)
*/
private $title;
/**
* @var string
*
* @ORM\Column(name="subTitle", type="string", length=255, nullable=true)
*/
private $subTitle;
/**
* @var string
*
* @ORM\Column(name="description", type="text", nullable=true)
*/
private $description;
/**
* @var string
*
* @ORM\Column(name="thumble", type="string", length=255, nullable=true)
*/
private $thumble;
/**
* @var string
*
* @ORM\Column(name="postFirstImg", type="string", length=255, nullable=true)
*/
private $postFirstImg;
/**
* @var int
*
* @ORM\Column(name="activeOrNot", type="integer")
*/
private $activeOrNot;
/**
* @var string
*
* @ORM\Column(name="type", type="string", length=255)
*/
private $type;
/**
* @ORM\ManyToOne(targetEntity="Category", inversedBy="posts")
* @ORM\JoinColumn(name="category_id", referencedColumnName="id")
*/
protected $category;
/**
* @ORM\ManyToOne(targetEntity="Seo", inversedBy="posts", cascade={"persist", "remove"})
* @ORM\JoinColumn(name="seo_id", referencedColumnName="id")
*/
protected $seo;
/**
* @ORM\OneToMany(targetEntity="Video", mappedBy="post", cascade={"persist"} )
*/
private $videos;
/**
* @ORM\OneToMany(targetEntity="Citation", mappedBy="post", cascade={"persist"} )
*/
private $citations;
/**
* @ORM\OneToMany(targetEntity="Caroussel", mappedBy="post", cascade={"persist"} )
*/
private $caroussels;
public function __construct()
{
$this->videos = new ArrayCollection();
$this->citations = new ArrayCollection();
$this->caroussels = new ArrayCollection();
}
/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set title
*
* @param string $title
* @return Post
*/
public function setTitle($title)
{
$this->title = $title;
return $this;
}
/**
* Get title
*
* @return string
*/
public function getTitle()
{
return $this->title;
}
/**
* Set subTitle
*
* @param string $subTitle
* @return Post
*/
public function setSubTitle($subTitle)
{
$this->subTitle = $subTitle;
return $this;
}
/**
* Get subTitle
*
* @return string
*/
public function getSubTitle()
{
return $this->subTitle;
}
/**
* Set description
*
* @param string $description
* @return Post
*/
public function setDescription($description)
{
$this->description = $description;
return $this;
}
/**
* Get description
*
* @return string
*/
public function getDescription()
{
return $this->description;
}
/**
* Set thumble
*
* @param string $thumble
* @return Post
*/
public function setThumble($thumble)
{
$this->thumble = $thumble;
return $this;
}
/**
* Get thumble
*
* @return string
*/
public function getThumble()
{
return $this->thumble;
}
/**
* Set postFirstImg
*
* @param string $postFirstImg
* @return Post
*/
public function setPostFirstImg($postFirstImg)
{
$this->postFirstImg = $postFirstImg;
return $this;
}
/**
* Get postFirstImg
*
* @return string
*/
public function getPostFirstImg()
{
return $this->postFirstImg;
}
/**
* Set activeOrNot
*
* @param integer $activeOrNot
* @return Post
*/
public function setActiveOrNot($activeOrNot)
{
$this->activeOrNot = $activeOrNot;
return $this;
}
/**
* Get activeOrNot
*
* @return integer
*/
public function getActiveOrNot()
{
return $this->activeOrNot;
}
/**
* Set type
*
* @param string $type
* @return Post
*/
public function setType($type)
{
$this->type = $type;
return $this;
}
/**
* Get type
*
* @return string
*/
public function getType()
{
return $this->type;
}
/**
* Set category
*
* @param \AppBundle\Entity\Category $category
* @return Post
*/
public function setCategory(\AppBundle\Entity\Category $category = null)
{
$this->category = $category;
return $this;
}
/**
* Get category
*
* @return \AppBundle\Entity\Category
*/
public function getCategory()
{
return $this->category;
}
/**
* Set seo
*
* @param \AppBundle\Entity\Seo $seo
* @return Post
*/
public function setSeo(\AppBundle\Entity\Seo $seo = null)
{
$this->seo = $seo;
return $this;
}
/**
* Get seo
*
* @return \AppBundle\Entity\Seo
*/
public function getSeo()
{
return $this->seo;
}
/**
* Add videos
*
* @param \AppBundle\Entity\Video $videos
* @return Post
*/
public function addVideo(\AppBundle\Entity\Video $videos)
{
$videos->setPost($this);
$this->videos[] = $videos;
return $this;
}
/**
* Remove videos
*
* @param \AppBundle\Entity\Video $videos
*/
public function removeVideo(\AppBundle\Entity\Video $videos)
{
$this->videos->removeElement($videos);
}
/**
* Get videos
*
* @return \Doctrine\Common\Collections\Collection
*/
public function getVideos()
{
return $this->videos;
}
/**
* Add citations
*
* @param \AppBundle\Entity\Citation $citations
* @return Post
*/
public function addCitation(\AppBundle\Entity\Citation $citations)
{
$citations->setPost($this);
$this->citations[] = $citations;
return $this;
}
/**
* Remove citations
*
* @param \AppBundle\Entity\Citation $citations
*/
public function removeCitation(\AppBundle\Entity\Citation $citations)
{
$this->citations->removeElement($citations);
}
/**
* Get citations
*
* @return \Doctrine\Common\Collections\Collection
*/
public function getCitations()
{
return $this->citations;
}
public function __toString(){
return $this->type;
}
/**
* Add caroussels
*
* @param \AppBundle\Entity\Caroussel $caroussels
* @return Post
*/
public function addCaroussel(\AppBundle\Entity\Caroussel $caroussels, \AppBundle\Entity\CarousselImg $carousselImg)
{
$caroussels->setPost($this);
$carousselImg->setCaroussel($caroussels);
$this->caroussels[] = $caroussels;
return $this;
}
/**
* Remove caroussels
*
* @param \AppBundle\Entity\Caroussel $caroussels
*/
public function removeCaroussel(\AppBundle\Entity\Caroussel $caroussels)
{
$this->caroussels->removeElement($caroussels);
}
/**
* Get caroussels
*
* @return \Doctrine\Common\Collections\Collection
*/
public function getCaroussels()
{
return $this->caroussels;
}
}
答案 0 :(得分：0)
尝试将new CarousselImgType()替换为CarousselImgType::class。 add方法的第二个参数需要具有字段的类型，而不是对象。
修改：您正在向CarousselImg而不是Caroussel的集合提供CarousselImg。您应该在Caroussel类型中执行类似的操作：
->add('title')
->add('carousselImgs', CollectionType::class, array(
'entry_type' => CarousselImgType::class,
//...
)