表单 – Symfony2嵌入表单不会将数据持久保存到数据库
我希望你能帮助我.我正在使用Symfony 2.x和Doctrine 2.x,我想创建一个由两个实体组成的表单.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,我希望将数据持久保存到两个实体(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 AppBundleEntity; use DoctrineORMMapping as ORM; use DoctrineCommonCollectionsArrayCollection; use SymfonyComponentValidatorConstraints as Assert; /** * Product * * @ORMTable(name="product") * @ORMEntity(repositoryClass="AppBundleRepositoryProductRepository") */ class Product { /** * @var int * * @ORMColumn(name="id",type="integer") * @ORMId * @ORMGeneratedValue(strategy="AUTO") */ private $id; /** * @var string * * @ORMColumn(name="price",type="decimal",precision=10,scale=0) */ private $price; /** * @ORMOneToMany(targetEntity="AppBundleEntityProductTranslation",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 AppBundleEntityProductTranslation $productTranslation * * @return Product */ public function addProductTranslation(AppBundleEntityProductTranslation $productTranslation) { $this->productTranslations[] = $productTranslation; return $this; } /** * Remove productTranslation * * @param AppBundleEntityProductTranslation $productTranslation */ public function removeProductTranslation(AppBundleEntityProductTranslation $productTranslation) { $this->productTranslations->removeElement($productTranslation); } } ProductTranslation实体: <?php namespace AppBundleEntity; use DoctrineORMMapping as ORM; /** * ProductTranslation * * @ORMTable(name="product_translation") * @ORMEntity(repositoryClass="AppBundleRepositoryProductTranslationRepository") */ class ProductTranslation { /** * @var int * * @ORMColumn(name="id",type="integer") * @ORMId * @ORMGeneratedValue(strategy="AUTO") */ private $id; /** * @var string * * @ORMColumn(name="name",type="string",length=255) */ private $name; /** * @var string * * @ORMColumn(name="description",type="text") */ private $description; /** * @var string * * @ORMColumn(name="language",length=5) */ private $language; /** * @ORMManyToOne(targetEntity="AppBundleEntityProduct",inversedBy="productTranslations",cascade={"persist"}) * @ORMJoinColumn(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 AppBundleEntityProduct $product * * @return ProductTranslation */ public function setProduct(AppBundleEntityProduct $product = null) { $this->product = $product; return $this; } /** * Get product * * @return AppBundleEntityProduct */ public function getProduct() { return $this->product; } } 产品类别: <?php namespace AppBundleForm; use SymfonyComponentFormAbstractType; use SymfonyComponentFormFormBuilderInterface; use SymfonyComponentOptionsResolverOptionsResolver; use SymfonyComponentFormExtensionCoreTypeMoneyType; 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' => 'AppBundleEntityProduct' )); } } ProductTranslationType: <?php namespace AppBundleForm; use SymfonyComponentFormAbstractType; use SymfonyComponentFormFormBuilderInterface; use SymfonyComponentOptionsResolverOptionsResolver; use SymfonyComponentFormExtensionCoreTypeTextType; use SymfonyComponentFormExtensionCoreTypeTextareaType; use SymfonyComponentFormExtensionCoreTypeChoiceType; 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' => 'AppBundleEntityProductTranslation' )); } } ProductController的: <?php namespace AppBundleController; use SymfonyComponentHttpFoundationRequest; use SymfonyBundleFrameworkBundleControllerController; use AppBundleEntityProduct; use AppBundleFormProductType; use AppBundleEntityProductTranslation; /** * 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 = $this->createForm('AppBundleFormProductType',$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 我看了一下食谱的帮助:http://symfony.com/doc/current/book/forms.html#embedded-forms,但我一直无法使它工作. 更新1 我还没有找到问题的答案.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 AppBundleController; use SymfonyComponentHttpFoundationRequest; use SymfonyBundleFrameworkBundleControllerController; use AppBundleEntityProduct; use AppBundleFormProductType; /** * 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 = $this->createForm('AppBundleFormProductType',$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' => $product,)); } 我现在收到以下错误消息: Expected value of type "DoctrineCommonCollectionsCollection|array" for association field "AppBundleEntityProduct#$productTranslations",got "string" instead. 更新2 在持久化数据之前,ProductController newAction中的变量product的var_dump()显示: object(AppBundleEntityProduct)[493] private 'id' => null private 'price' => float 3 private 'productTranslations' => object(DoctrineCommonCollectionsArrayCollection)[494] private 'elements' => array (size=4) 'name' => string 'abc' (length=45) 'description' => string 'alphabet' (length=35) 'language' => string 'en' (length=2) 0 => object(AppBundleEntityProductTranslation)[495] ... 解决方法
错误是自我解释; 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 DoctrineCommonCollectionsArrayCollection(); } 对于setter / getter,您可以使用: public function addProductTranslation(AppBundleEntityProductTranslation $pt) { $this->productTranslations[] = $pt; $pt->setProduct($this); return $this; } public function removeProductTranslation(AppBundleEntityProductTranslation $pt) { $this->productTranslations->removeElement($pt); } public function getProductTranslations() { return $this->productTranslations; } 编辑: //Product entity oneToMany: productTranslations: mappedBy: product targetEntity: AppBundle...BundleEntityProductTranslation cascade: [persist] // ProductTranslation entity manyToOne: product: targetEntity: AppBundle..BundleEntityProduct inversedBy: productTranslations joinColumn: name: product_id type: integer referencedColumnName: id onDelete: cascade 另请注意,您不需要在Product实体中使用setProductTranslation()setter,因为添加和删除目标是替换它. EDIT2: 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? (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |