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我有以下表格：電影，類別，films_categories和實體：Zend框架2學說2多對多實體關係問題
Film.php
<?php
namespace Admin\Entity;
use Doctrine\Common\Collections\ArrayCollection;
use Doctrine\Common\Collections\Collection;
use Doctrine\ORM\Mapping as ORM;
/**
* @ORM\Table(name="films")
*/
class Film{
/**
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
* @ORM\Column(type="integer")
* @ORM\Column(length=11)
*/
private $id;
/**
* @ORM\Column(type="string")
*/
private $name;
/* .... */
/**
* @ORM\ManyToMany(targetEntity="Category")
* @ORM\JoinTable(name="films_categories",
* joinColumns={@ORM\JoinColumn(name="film_id", referencedColumnName = "id")},
* inverseJoinColumns={@ORM\JoinColumn(name="category_id", referencedColumnName="id")})
*/
private $categories;
public function __construct(){
$this->categories = new ArrayCollection();
}
public function getCategoriesNames(){
$names = array();
foreach($this->categories as $category){
$names[] = $category->getName();
}
return $names;
}
public function getId(){
return $this->id;
}
public function setId($id){
$this->id = $id;
}
/* ... */
/**
* @return Collection
*/
public function getCategories(){
return $this->categories;
}
public function addCategories(Collection $categories){
foreach($categories as $category){
$this->categories->add($category);
}
}
public function removeCategories(Collection $categories){
foreach($categories as $category){
$this->categories->removeElement($category);
}
}
}
Category.php
<?php
namespace Admin\Entity;
use Doctrine\ORM\Mapping as ORM;
/**
* @ORM\Table(name="categories")
*/
class Category {
/**
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
* @ORM\Column(type="integer")
*/
private $id;
/* ... */
public function getId(){
return $this->id;
}
public function setId($id){
$this->id = $id;
}
/* ... */
}
我想要做的是創建一個表單和添加一個新電影併爲其分配類別的操作。下面是我用的形式：
FilmFieldset.php
<?php
namespace Admin\Form;
use Zend\Form\Fieldset;
use Zend\InputFilter\InputFilterProviderInterface;
use DoctrineORMModule\Stdlib\Hydrator\DoctrineEntity;
use Admin\Entity\Film;
class FilmFieldset extends Fieldset implements InputFilterProviderInterface{
protected $entityManager;
public function __construct($em){
parent::__construct('film');
$this->entityManager= $em;
$this->setHydrator(new DoctrineEntity($em,'Admin\Entity\Film'))
->setObject(new Film());
#$this->setAttribute('method','post');
#$this->setAttribute('class','standardForm');
$this->add(array(
'name' => 'id',
'type' => 'hidden'
));
/* ... */
$this->add(
array(
'type' => 'DoctrineModule\Form\Element\ObjectSelect',
'name' => 'categories',
'attributes' => array(
'multiple' => 'multiple',
),
'options' => array(
'object_manager' => $em,
'target_class' => 'Admin\Entity\Category',
'property' => 'name',
'label' => 'Categories: ',
'disable_inarray_validator' => true
),
)
);
}
public function getInputFilterSpecification(){
return array(
/* .... */
'categories' => array(
'required' => true,
),
);
}
}
的FilmForm.php
<?php
namespace Admin\Form;
use Zend\Form\Form;
use Zend\Stdlib\Hydrator\ClassMethods;
use Admin\Entity\Film;
use Zend\InputFilter\InputFilter;
use DoctrineModule\Stdlib\Hydrator\DoctrineObject as DoctrineHydrator;
class FilmForm extends Form{
public function __construct($em){
parent::__construct('filmForm');
$this->setAttribute('method','post')
->setAttribute('class','standardForm')
->setHydrator(new DoctrineHydrator($em,'\Admin\Entity\Film'))
->setInputFilter(new InputFilter());
/* I register the fieldset through a service and not directly here */
// $this->add(array(
// 'type' => new FilmFieldset($em),
// 'options' => array(
// 'user_as_base_fieldset' => true
//)
//));
$this->add(array(
'name' => 'security',
'type' => 'Zend\Form\Element\Csrf'
));
$this->add(array(
'name' => 'submit',
'type' => 'submit',
));
$this->setValidationGroup(array(
'security',
'film' => array(
'categories',
)
));
}
}
的的addAction：
public function addAction() {
$em = $this->getEntityManager();
$form = $this->getForm();
$film = new Film();
$form->bind($film);
if($request->isPost()){
$post = array_merge_recursive(
$request->getPost()->toArray(),
$request->getFiles()->toArray()
);
$form->setData($post);
if($form->isValid()){
$categories = array();
foreach($post['film']['categories'] as $categoryId){
$categories[] = $em->getRepository('Admin\Entity\Category')->find($categoryId);
}
$film->addCategories($categories);
$em->persist($film);
$em->flush();
}else{
// the form is not valid
}
}
結果是各種錯誤和與ORMExcption與消息「找到關聯Admin \ Entity \ Film＃類別類型的實體，但期望Admin \ Entity \類別「
請幫助我，我真的嚇壞了這個！謝謝:)
從我發現的錯誤是Admin \ Entity \ Film＃類別意味着您正在傳遞一些值到您的實體，因爲它期望類型爲「Admin \ Entity \ Category」類型的對象。 –