我希望你能帮助我。我正在使用 Symfony 2.x和Doctrine 2.x ,我想创建由两个实体组成的 一个表单 。通过填写这一表格,我想将数据保存到两个学说实体。
为简单起见,我举了一个例子。多语种网上商店需要有英文和法文的名称和产品描述。我想用一个表单来创建一个新产品。此创建表单将包含Product实体(id; productTranslations; price,productTranslations)以及ProductTranslation实体(id; name; description; language,product)中的数据。生成的创建产品表单包含以下字段(名称;描述;语言(EN / FR);价格)。
Product和ProductTranslation实体通过双向一对多关系相互关联。关系的拥有站点是ProductTranslation。
提交表单后,我希望将数据保存到两个实体(Product和ProductTranslation)。这是出错的地方。我不能坚持这些数据。
因此,我尝试了以下内容:
产品实体:
<?php
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Doctrine\Common\Collections\ArrayCollection;
use Symfony\Component\Validator\Constraints as Assert;
/**
* Product
*
* @ORM\Table(name="product")
* @ORM\Entity(repositoryClass="AppBundle\Repository\ProductRepository")
*/
class Product
{
/**
* @var int
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
*
* @ORM\Column(name="price", type="decimal", precision=10, scale=0)
*/
private $price;
/**
* @ORM\OneToMany(targetEntity="AppBundle\Entity\ProductTranslation", mappedBy="product")
*/
private $productTranslations;
public function __construct()
{
$this->productTranslations = new ArrayCollection();
}
/**
* Get id
*
* @return int
*/
public function getId()
{
return $this->id;
}
/**
* Set price
*
* @param string $price
*
* @return Product
*/
public function setPrice($price)
{
$this->price = $price;
return $this;
}
/**
* Get price
*
* @return string
*/
public function getPrice()
{
return $this->price;
}
/**
* Set productTranslations
*
* @param \stdClass $productTranslations
*
* @return Product
*/
public function setProductTranslations($productTranslations)
{
$this->productTranslations = $productTranslations;
return $this;
}
/**
* Get productTranslations
*
* @return \stdClass
*/
public function getProductTranslations()
{
return $this->productTranslations;
}
/**
* Add productTranslation
*
* @param \AppBundle\Entity\ProductTranslation $productTranslation
*
* @return Product
*/
public function addProductTranslation(\AppBundle\Entity\ProductTranslation $productTranslation)
{
$this->productTranslations[] = $productTranslation;
return $this;
}
/**
* Remove productTranslation
*
* @param \AppBundle\Entity\ProductTranslation $productTranslation
*/
public function removeProductTranslation(\AppBundle\Entity\ProductTranslation $productTranslation)
{
$this->productTranslations->removeElement($productTranslation);
}
}
ProductTranslation Entity :
<?php
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* ProductTranslation
*
* @ORM\Table(name="product_translation")
* @ORM\Entity(repositoryClass="AppBundle\Repository\ProductTranslationRepository")
*/
class ProductTranslation
{
/**
* @var int
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
*
* @ORM\Column(name="name", type="string", length=255)
*/
private $name;
/**
* @var string
*
* @ORM\Column(name="description", type="text")
*/
private $description;
/**
* @var string
*
* @ORM\Column(name="language", type="string", length=5)
*/
private $language;
/**
* @ORM\ManyToOne(targetEntity="AppBundle\Entity\Product", inversedBy="productTranslations",cascade={"persist"})
* @ORM\JoinColumn(name="product_translation_id", referencedColumnName="id")
*
*/
private $product;
/**
* Get id
*
* @return integer
*/
public function getId()
{
return $this->id;
}
/**
* Set name
*
* @param string $name
*
* @return ProductTranslation
*/
public function setName($name)
{
$this->name = $name;
return $this;
}
/**
* Get name
*
* @return string
*/
public function getName()
{
return $this->name;
}
/**
* Set description
*
* @param string $description
*
* @return ProductTranslation
*/
public function setDescription($description)
{
$this->description = $description;
return $this;
}
/**
* Get description
*
* @return string
*/
public function getDescription()
{
return $this->description;
}
/**
* Set language
*
* @param string $language
*
* @return ProductTranslation
*/
public function setLanguage($language)
{
$this->language = $language;
return $this;
}
/**
* Get language
*
* @return string
*/
public function getLanguage()
{
return $this->language;
}
/**
* Set product
*
* @param \AppBundle\Entity\Product $product
*
* @return ProductTranslation
*/
public function setProduct(\AppBundle\Entity\Product $product = null)
{
$this->product = $product;
return $this;
}
/**
* Get product
*
* @return \AppBundle\Entity\Product
*/
public function getProduct()
{
return $this->product;
}
}
ProductType :
<?php
namespace AppBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Form\Extension\Core\Type\MoneyType;
class ProductType extends AbstractType {
/**
* @param FormBuilderInterface $builder
* @param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options) {
$builder->add('productTranslations', ProductTranslationType::class, array('label' => false, 'data_class' => null));
$builder
->add('price', MoneyType::class)
;
}
/**
* @param OptionsResolver $resolver
*/
public function configureOptions(OptionsResolver $resolver) {
$resolver->setDefaults(array(
'data_class' => 'AppBundle\Entity\Product'
));
}
}
ProductTranslationType :
<?php
namespace AppBundle\Form;
use Symfony\Component\Form\AbstractType;
use Symfony\Component\Form\FormBuilderInterface;
use Symfony\Component\OptionsResolver\OptionsResolver;
use Symfony\Component\Form\Extension\Core\Type\TextType;
use Symfony\Component\Form\Extension\Core\Type\TextareaType;
use Symfony\Component\Form\Extension\Core\Type\ChoiceType;
class ProductTranslationType extends AbstractType
{
/**
* @param FormBuilderInterface $builder
* @param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('name', TextType::class)
->add('description', TextareaType::class )
->add('language', ChoiceType::class, array('choices' => array('en' => 'EN', 'fr' => 'FR')))
;
}
/**
* @param OptionsResolver $resolver
*/
public function configureOptions(OptionsResolver $resolver)
{
$resolver->setDefaults(array(
'data_class' => 'AppBundle\Entity\ProductTranslation'
));
}
}
ProductController的:
<?php
namespace AppBundle\Controller;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use AppBundle\Entity\Product;
use AppBundle\Form\ProductType;
use AppBundle\Entity\ProductTranslation;
/**
* Product controller.
*
*/
class ProductController extends Controller {
/**
* Creates a new Product entity.
*
*/
public function newAction(Request $request) {
$em = $this->getDoctrine()->getManager();
$product = new Product();
$productTranslation = new ProductTranslation();
$form = $this->createForm('AppBundle\Form\ProductType', $product);
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
$em = $this->getDoctrine()->getManager();
$product->getProductTranslations()->add($product);
$productTranslation->setProduct($product);
$em->persist($productTranslation);
$em->flush();
return $this->redirectToRoute('product_show', array('id' => $product->getId()));
}
return $this->render('product/new.html.twig', array(
'product' => $product,
'form' => $form->createView(),
));
}
}
错误:
Warning: spl_object_hash() expects parameter 1 to be object, string given
500 Internal Server Error - ContextErrorException
我已经查看了食谱的帮助:http://symfony.com/doc/current/book/forms.html#embedded-forms,但是我无法让它工作。
更新1
我还没找到问题的答案。根据下面的评论,我看了一下这些协会。我已经对ProductController进行了调整,这使我能够测试数据是否以正确的方式插入数据库中。数据已正确插入,但我无法通过表单插入。希望有人可以帮助我。
ProductController的:
<?php
namespace AppBundle\Controller;
use Symfony\Component\HttpFoundation\Request;
use Symfony\Bundle\FrameworkBundle\Controller\Controller;
use AppBundle\Entity\Product;
use AppBundle\Form\ProductType;
/**
* Creates a new Product entity.
*
*/
public function newAction(Request $request) {
$em = $this->getDoctrine()->getManager();
$product = new Product();
$productTranslation = new ProductTranslation();
/* Sample data insertion */
$productTranslation->setProduct($product);
$productTranslation->setName('Product Q');
$productTranslation->setDescription('This is product Q');
$productTranslation->setLanguage('EN');
$product->setPrice(95);
$product->addProductTranslation($productTranslation);
$em->persist($product);
$em->persist($productTranslation);
$em->flush();
/* End sample data insertion */
$form = $this->createForm('AppBundle\Form\ProductType', $product);
$form->handleRequest($request);
if ($form->isSubmitted() && $form->isValid()) {
$em = $this->getDoctrine()->getManager();
$product->getProductTranslations()->add($product);
$productTranslation->setProduct($product);
$em->persist($productTranslation);
$em->flush();
return $this->redirectToRoute('product_show', array('id' => $product->getId()));
}
return $this->render('product/new.html.twig', array(
'product' => $product,
'form' => $form->createView(),
));
}
我现在收到以下错误消息:
Expected value of type "Doctrine\Common\Collections\Collection|array" for association field "AppBundle\Entity\Product#$productTranslations", got "string" instead.
更新2
在持久化数据之前,ProductController newAction中变量product的var_dump()显示:
object(AppBundle\Entity\Product)[493]
private 'id' => null
private 'price' => float 3
private 'productTranslations' =>
object(Doctrine\Common\Collections\ArrayCollection)[494]
private 'elements' =>
array (size=4)
'name' => string 'abc' (length=45)
'description' => string 'alphabet' (length=35)
'language' => string 'en' (length=2)
0 =>
object(AppBundle\Entity\ProductTranslation)[495]
...
答案 0 :(得分:5)
错误是自我解释的; productTranslations
必须是Array或arrayCollection。这是一个“字符串”。
所以在Product的构造函数中:
public function __construct()
{
$this->activityTranslations = new ArrayCollection();
$this->productTranslations = new \Doctrine\Common\Collections\ArrayCollection();
}
对于setter / getter,您可以使用:
public function addProductTranslation(AppBundle\Entity\ProductTranslation $pt)
{
$this->productTranslations[] = $pt;
$pt->setProduct($this);
return $this;
}
public function removeProductTranslation(AppBundle\Entity\ProductTranslation $pt)
{
$this->productTranslations->removeElement($pt);
}
public function getProductTranslations()
{
return $this->productTranslations;
}
修改强> 在使用Symfony2.3的YAML中,这是我正在使用的对象映射配置(强调应该添加级联持久性的地方)。
//Product entity
oneToMany:
productTranslations:
mappedBy: product
targetEntity: App\Bundle\...Bundle\Entity\ProductTranslation
cascade: [persist]
// ProductTranslation entity
manyToOne:
product:
targetEntity: App\Bundle\..Bundle\Entity\Product
inversedBy: productTranslations
joinColumn:
name: product_id
type: integer
referencedColumnName: id
onDelete: cascade
此外,请注意,由于setProductTranslation()
和add
旨在替换它,因此您无需在产品实体中使用remove
setter。
<强> EDIT2:强>
在Symfony2中,以下是我处理带有集合的表单的方法:
class ProductType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('productPrice','number',array('required' => false))
->add('productTranslations', 'collection', array(
'type' => new ProducatTranslationType()
))
;
}
我不知道为什么你没有在formType中指定集合。它是Symfony的新版本吗?
答案 1 :(得分:2)
我正在查看您的控制器,我注意到您持续使用ProductTranslation,但是在ProductTranslation实体中,您缺少与Product实体关系的cascade={"persist"}
注释。如果您希望它保存相关实体,则需要在您要保留的实体上指定它。
答案 2 :(得分:2)
$product->getProductTranslations()->add($product);
$productTranslation->setProduct($product);
想知道你想做什么,但我相信你需要使用:
$product->addProductTranslation($productTranslation);
$productTranslation->setProduct($product);
$ product-&gt; getProductTranslations()返回类&#39; ProductTranslation&#39;的ArrayCollection。并且您正在将该数组与type&#39; Product&#39;的值合并。
这有点不一致,如果我错了你能说出你在那句话中做了什么吗?
谢谢!