我正在尝试学习Symfony2，目前：实体关系/关联（加入相关记录）。我有一个问题我无法正确
注意：未定义的索引：角色500内部服务器错误 - ContextErrorException
这是我的代码：
*班级角色：
class Roles
{
/**
* @var integer
*
* @ORM\Column(name="id", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
*
* @ORM\Column(name="nom_roles", type="string", length=225, nullable=false)
*@Assert\NotBlank(message="le champ nom du role est obligatoire")
*
*/
Private $name_role;
/**
* @var ArrayCollection $groups
*
* @ORM\OneToMany(targetEntity="Groups", mappedBy="roles", cascade={"persist","merge"})
*@Assert\Valid()
*/
protected $groups;
/**
* @var ArrayCollection Permissions $permision
*
* @ORM\ManyToMany(targetEntity="Permissions", inversedBy="roleGroup", cascade={"persist", "merge"})
* @ORM\JoinTable(name="roles_permissions",
* joinColumns={@ORM\JoinColumn(name="id_rolesGR", referencedColumnName="id")},
* inverseJoinColumns={@ORM\JoinColumn(name="id_permGR", referencedColumnName="id_per")}
* )
* @Assert\Valid()
*/
protected $permissions_role;
/**
* Roles constructor.
*/
public function __construct()
{
$this->groups = new ArrayCollection();
$this->permissions_role = new ArrayCollection();
}
- 类权限：
class Permissions {
/**
* @var integer
*
* @ORM\Column(name="id_per", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*/
private $id;
/**
* @var string
* @ORM\Column(name="nom_permisions", length=255, nullable=true)
* @Assert\NotBlank(message="le choix des permissions sont obligatoire")
*/
private $name_permissions;
/**
* @var ArrayCollection Roles $roleGroup
*
* Inverse Side
*
* @ORM\ManyToMany(targetEntity="Roles", mappedBy="permissions", cascade={"persist", "merge"})
*@Assert\Valid()
*/
protected $roleGroup;
-Class Groups：
class Groups
{
/**
* @var integer
*
* @ORM\Column(name="id_groupes", type="integer")
* @ORM\Id
* @ORM\GeneratedValue(strategy="AUTO")
*
*/
private $id;
/**
* @var string
*
*-- contrainte sur le chmap
*
* @Assert\NotBlank(message="le champ nom du groupe est obligatoire")
*
* @Assert\Type(
* type="string",
* message="la valeur {{ value }} n'est pas valide {{ type }}.
* Elle est de type chaine des cractéres"
* )
*
* @Assert\Length(
* min=5,
* max= 50,
* minMessage="votre nom du groupe doit comprendre au moins {{ limit }} caractéres",
* maxMessage="votre nom du groupe doit comprendre au maximun {{ limit }} caractéres"
* )
*
* @ORM\Column(name="nom_groupe", type="string", length=225, nullable=false)
*@Assert\NotBlank(message="le champ nom du groupe est obligatoire")
*
*
*/
Private $name_groups;
/**
* @var DateTime()
*
* @ORM\Column(name="date_creation", type="datetime",nullable=false)
*
*@Assert\DateTime()
*/
private $date_create;
/**
* @ORM\OneToOne(targetEntity="Images", cascade={"persist", "merge", "remove"})
* @ORM\JoinColumn(name="image_id", referencedColumnName="id_images")
* @Assert\Valid()
*/
protected $image;
/**
* @var Roles $role
*
* @ORM\ManyToOne(targetEntity="Roles", inversedBy="groups", cascade={"persist", "merge"})
* @ORM\JoinColumns({
* @ORM\JoinColumn(name="role_id", referencedColumnName="id", nullable=false)
* })
* @Assert\Valid()
*/
protected $role;
- 我的控制器
class GroupsController extends Controller
{ public function indexAction()
{
$em = $this->getDoctrine()->getManager();
$entities = $em->getRepository('GroupsBundle:Groups')->findAll();
return $this->render('GroupsBundle:Groups:index.html.twig', array(
'entities' => $entities,
));
}
/**
* Creates a new Groups entity.
*
*/
public function createAction(Request $request)
{
$entity = new Groups();
$form = $this->createCreateForm($entity);
$form->handleRequest($request);
if ($form->isValid()) {
$em = $this->getDoctrine()->getManager();
$em->persist($entity);
$em->flush();
return $this->redirect($this->generateUrl('groups_show', array('id' => $entity->getId())));
}
return $this->render('GroupsBundle:Groups:new.html.twig', array(
'entity' => $entity,
'form' => $form->createView(),
));
}
/**
* Creates a form to create a Groups entity.
*
* @param Groups $entity The entity
*
* @return \Symfony\Component\Form\Form The form
*/
private function createCreateForm(Groups $entity)
{
$form = $this->createForm(new GroupsType(), $entity, array(
'action' => $this->generateUrl('groups_create'),
'method' => 'POST',
));
$form->add('submit', 'submit', array('label' => 'Create'));
return $form;
}
/**
* Displays a form to create a new Groups entity.
*
*/
public function newAction()
{
$entity = new Groups();
$form = $this->createCreateForm($entity);
return $this->render('GroupsBundle:Groups:new.html.twig', array(
'entity' => $entity,
'form' => $form->createView(),
));
}
/**
* Finds and displays a Groups entity.
*
*/
public function showAction($id)
{
$em = $this->getDoctrine()->getManager();
$entity = $em->getRepository('GroupsBundle:Groups')->find($id);
if (!$entity) {
throw $this->createNotFoundException('Unable to find Groups entity.');
}
$deleteForm = $this->createDeleteForm($id);
return $this->render('GroupsBundle:Groups:show.html.twig', array(
'entity' => $entity,
'delete_form' => $deleteForm->createView(),
));
}
/**
* Displays a form to edit an existing Groups entity.
*
*/
public function editAction($id)
{
$em = $this->getDoctrine()->getManager();
$entity = $em->getRepository('GroupsBundle:Groups')->find($id);
if (!$entity) {
throw $this->createNotFoundException('Unable to find Groups entity.');
}
$editForm = $this->createEditForm($entity);
$deleteForm = $this->createDeleteForm($id);
return $this->render('GroupsBundle:Groups:edit.html.twig', array(
'entity' => $entity,
'edit_form' => $editForm->createView(),
'delete_form' => $deleteForm->createView(),
));
}
/**
* Creates a form to edit a Groups entity.
*
* @param Groups $entity The entity
*
* @return \Symfony\Component\Form\Form The form
*/
private function createEditForm(Groups $entity)
{
$form = $this->createForm(new GroupsType(), $entity, array(
'action' => $this->generateUrl('groups_update', array('id' => $entity->getId())),
'method' => 'PUT',
));
$form->add('submit', 'submit', array('label' => 'Update'));
return $form;
}
/**
* Edits an existing Groups entity.
*
*/
public function updateAction(Request $request, $id)
{
$em = $this->getDoctrine()->getManager();
$entity = $em->getRepository('GroupsBundle:Groups')->find($id);
if (!$entity) {
throw $this->createNotFoundException('Unable to find Groups entity.');
}
$deleteForm = $this->createDeleteForm($id);
$editForm = $this->createEditForm($entity);
$editForm->handleRequest($request);
if ($editForm->isValid()) {
$em->flush();
return $this->redirect($this->generateUrl('groups_edit', array('id' => $id)));
}
return $this->render('GroupsBundle:Groups:edit.html.twig', array(
'entity' => $entity,
'edit_form' => $editForm->createView(),
'delete_form' => $deleteForm->createView(),
));
}
/**
* Deletes a Groups entity.
*
*/
public function deleteAction(Request $request, $id)
{
$form = $this->createDeleteForm($id);
$form->handleRequest($request);
if ($form->isValid()) {
$em = $this->getDoctrine()->getManager();
$entity = $em->getRepository('GroupsBundle:Groups')->find($id);
if (!$entity) {
throw $this->createNotFoundException('Unable to find Groups entity.');
}
$em->remove($entity);
$em->flush();
}
return $this->redirect($this->generateUrl('groups'));
}
/**
* Creates a form to delete a Groups entity by id.
*
* @param mixed $id The entity id
*
* @return \Symfony\Component\Form\Form The form
*/
private function createDeleteForm($id)
{
return $this->createFormBuilder()
->setAction($this->generateUrl('groups_delete', array('id' => $id)))
->setMethod('DELETE')
->add('submit', 'submit', array('label' => 'Delete'))
->getForm()
;
}
}
问题：
捕获致命错误：参数1传递给 Doctrine \ Common \ Collections \ ArrayCollection :: __ construct（）必须是 类型数组，给定对象，调用 /home/cros/Desktop/Project_Console/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php 在555行并定义了500内部服务器错误 - ContextErrorException
* Stack Trace：
第48行的vendor / doctrine / collections / lib / Doctrine / Common / Collections / ArrayCollection.php中的-
/*
* @param array $elements
*/
public function __construct(array $elements = array())
{
$this->elements = $elements;
}
在ErrorHandler - ＆gt; handleError（＆＃39; 4096＆＃39;，＆＃39;参数1传递给 Doctrine \ Common \ Collections \ ArrayCollection :: __ construct（）必须是 类型数组，给定对象，调用 /home/cros/Desktop/Project_Console/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php 在第555行并定义了＆＃39;， ＆＃39; /home/Cros/Desktop/Project_Console/vendor/doctrine/collections/lib/Doctrine/Common/Collections/ArrayCollection.php'，
我的GroupsType和RolesType：
class GroupsType extends AbstractType
{
/**
* @param FormBuilderInterface $builder
* @param array $options
*/
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('image',new ImagesType())
->add('name_groups', 'text',array('required' => true, 'attr' => array('placeholder' => 'Nom du groupe')))
->add('role', new RolesType())
;
}
}
//My RolesType:
class RolesType extends AbstractType
{
public function buildForm(FormBuilderInterface $builder, array $options)
{
$builder
->add('groups', 'entity',array(
'class' => 'GroupsBundle:Roles',
'choice_label' => 'name_role',
/*'query_builder' => function(EntityRepository $er)
{
return $er->createQueryBuilder('r')
->orderBy('r.id', 'ASC');
},*/
'required' => true,
'placeholder' => 'Choisir le role du votre groupe'
)
)
->add('permissions_role','entity',array(
'class' => 'GroupsBundle:Permissions',
'multiple' => true,
'expanded' => true,
'query_builder' => function(EntityRepository $er) {
return $er->createQueryBuilder('u')
->orderBy('u.id', 'ASC');
},
'required' => true
)
)
// ->add('permissions_role','number')
;
谢谢
答案 0 :(得分：1)
很难理解你在这里提供的所有代码，但我会尽力帮助。
如我所见，$groups课程中的Roles媒体资源已注明OneToMany，mappedBy设为"roles"。
/**
* @var ArrayCollection $groups
*
* @ORM\OneToMany(targetEntity="Groups", mappedBy="roles", cascade={"persist","merge"})
* @Assert\Valid()
*/
protected $groups;
关系的目标实体是Groups，据我在您的商家信息中看到，此实体没有roles属性，而是role代替：
/**
* @var Roles $role
*
* @ORM\ManyToOne(targetEntity="Roles", inversedBy="groups", cascade={"persist", "merge"})
* @ORM\JoinColumns({
* @ORM\JoinColumn(name="role_id", referencedColumnName="id", nullable=false)
* })
* @Assert\Valid()
*/
protected $role;
您应该尝试将此属性重命名为roles。