【发布时间】：2016-01-18 09:59:54
【问题描述】：
我将 Symfony 2.7 与 Doctrine 2 一起使用。当使用 OneToMany 关系时，该属性保持为空。
上下文
我正在尝试创建一个过滤器，以便只有当前受雇于某个组织的员工才能看到与该组织相关的实体。 （我已经创建了一个带有硬编码组织的过滤器，它可以工作）。
我已经创建了一个与用户的多对一关系、与组织的多对一关系、一个加入日期和一个离开日期的 Employee 实体。用户与 Employee 具有（反向）OneToMany 关系。当我调用 $user->getEmployees() 时，我没有得到任何结果。
预期结果
在调用 $user->getEmployees() 时，我希望获得当前使用我的 user_id 存储在数据库中的三个 Employee 实体的集合。
实际结果
返回一个空集合，是 var_dump 的一部分
object(Doctrine\ORM\PersistentCollection)[83]
private 'snapshot' =>
array (size=0)
empty
private 'owner' =>
object(AppBundle\Entity\User)[342]
protected 'id' => int 1
protected 'groups' =>
object(Doctrine\ORM\PersistentCollection)[52]
private 'snapshot' =>
array (size=0)
...
private 'owner' =>
&object(AppBundle\Entity\User)[342]
private 'association' =>
array (size=19)
...
private 'em' =>
object(Doctrine\ORM\EntityManager)[282]
...
private 'backRefFieldName' => null
private 'typeClass' =>
object(Doctrine\ORM\Mapping\ClassMetadata)[42]
...
private 'isDirty' => boolean false
private 'initialized' => boolean false
private 'coll' =>
object(Doctrine\Common\Collections\ArrayCollection)[41]
...
protected 'employees' =>
&object(Doctrine\ORM\PersistentCollection)[83]
其他信息
在 Doctrine @OneToMany 上搜索让我忘记了一些参数、参数等或打错字的人。我和我的大学在我的代码中找不到其中之一。所以我有点卡住了。请帮忙。
composer.json（部分）：
"require" : {
"php" : ">=5.3.9",
"symfony/symfony" : "2.7.*",
"doctrine/orm" : "~2.2,>=2.2.3,<2.5",
"doctrine/dbal" : "<2.5",
"doctrine/doctrine-bundle" : "~1.4",
"symfony/assetic-bundle" : "~2.3",
"symfony/swiftmailer-bundle" : "~2.3",
"symfony/monolog-bundle" : "~2.4",
"sensio/distribution-bundle" : "~4.0",
"sensio/framework-extra-bundle" : "~3.0,>=3.0.2",
"incenteev/composer-parameter-handler" : "~2.0",
"friendsofsymfony/user-bundle" : "~2.0@dev",
"stof/doctrine-extensions-bundle" : "^1.2",
"sonata-project/admin-bundle" : "^2.3",
"sonata-project/doctrine-orm-admin-bundle" : "^2.3",
"sonata-project/translation-bundle" : "1.0.0",
"doctrine/doctrine-fixtures-bundle" : "^2.3"
},
Configuration.php（这是过滤器的配置）
<?php
namespace AppBundle\Filter;
use Symfony\Component\Security\Core\User\UserInterface;
use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
use Doctrine\Common\Persistence\ObjectManager;
use Doctrine\Common\Annotations\Reader;
use Doctrine\Common\Collections\Criteria;
use AppBundle\Entity\Employee;
class Configurator
{
protected $em;
protected $tokenStorage;
protected $reader;
public function __construct(ObjectManager $em, TokenStorageInterface $tokenStorage, Reader $reader)
{
$this->em = $em;
$this->tokenStorage = $tokenStorage;
$this->reader = $reader;
}
public function onKernelRequest()
{
if ($user = $this->getUser()) {
$filter = $this->em->getFilters()->enable('organisation');
$user_id = $user->getId();
print "User id: $user_id<br />\n"; // Just to check I can get the user_id, that works
$employeeCollection = $user->getEmployees(); // Get the Employees
var_dump($employeeCollection); // Oeps, no result
die(); // Let's just quit (for now)
// To Do find out all the organisation id's
// $filter->setParameter('organisation_ids', $organisation_ids);
}
}
private function getUser()
{
$token = $this->tokenStorage->getToken();
if (!$token) {
return null;
}
$user = $token->getUser();
if (!($user instanceof UserInterface)) {
return null;
}
return $user;
}
}
用户.php
<?php
// src/AppBundle/Entity/User.php
namespace AppBundle\Entity;
use FOS\UserBundle\Model\User as BaseUser;
use Doctrine\ORM\Mapping as ORM;
/**
* @ORM\Entity
* @ORM\Table(name="fos_user")
*/
class User extends BaseUser
{
/**
* @ORM\Id
* @ORM\Column(type="integer")
* @ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* @ORM\ManyToMany(targetEntity="AppBundle\Entity\Group")
* @ORM\JoinTable(name="fos_user_group",
* joinColumns={@ORM\JoinColumn(name="user_id", referencedColumnName="id")},
* inverseJoinColumns={@ORM\JoinColumn(name="group_id", referencedColumnName="id")}
* )
*/
protected $groups;
/**
* @var Collection
* @ORM\OneToMany(targetEntity="AppBundle\Entity\Employee", mappedBy="user", cascade="persist")
*/
protected $employees;
public function __construct()
{
$this->employees = new \Doctrine\Common\Collections\ArrayCollection();
parent::__construct();
}
public function prePersist($user)
{
parent::prePersist($user);
$user->setEmplolyees($user->getEmployees());
}
public function preUpdate($user)
{
parent::preUpdate($user);
$user->setEmplolyees($user->getEmployees());
}
/**
* Add employees
*
* @param \AppBundle\Entity\User $employee
* @return Organisation
*/
public function addEmployee(\AppBundle\Entity\User $employee)
{
$employee->setOrganisation($this);
$this->employees[] = $employee;
return $this;
}
function setEmployees($employees)
{
foreach ($employees as $employee)
{
$this->addEmployee($employee);
}
}
/**
* Remove employee
*
* @param \AppBundle\Entity\User $employee
*/
public function removeEmployee(\AppBundle\Entity\User $employee)
{
$this->employees->removeElement($employee);
}
/**
* Get employees
*
* @return \Doctrine\Common\Collections\Collection
*/
public function getEmployees()
{
return $this->employees;
}
}
Employee.php
<?php
// src/AppBundle/Entity/User.php
namespace AppBundle\Entity;
namespace AppBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
// use Doctrine\ORM\EntityManager;
use Gedmo\Mapping\Annotation as Gedmo;
use AppBundle\Annotation as CRUD;
/**
* @ORM\Entity
* @ORM\HasLifecycleCallbacks
* @Gedmo\SoftDeleteable(fieldName="deleted")
* @Gedmo\Loggable
*/
class Employee {
/**
* @ORM\Id
* @ORM\Column(type="guid")
* @ORM\GeneratedValue(strategy="UUID")
*/
private $id;
/**
* @ORM\ManyToOne(targetEntity="AppBundle\Entity\User", inversedBy="employees")
*/
private $user;
/**
* @ORM\ManyToOne(targetEntity="AppBundle\Entity\Organisation", inversedBy="employees")
*/
private $organisation;
/**
* @ORM\Column(type="date")
*/
private $joindate;
/**
* @ORM\Column(type="date", nullable=true)
*/
private $leavedate;
/**
* @ORM\Column(type="datetime")
* @Gedmo\Timestampable(on="create")
*
*/
private $created;
/**
* @ORM\Column(type="datetime", nullable=true)
*/
private $deleted;
public function __toString()
{
return $this->user . ' - ' . $this->organisation . ' (' . print_r($this->getJoindate(),1);
}
/**
* Set created
*
* @param \DateTime $created
* @return Employee
*/
public function setCreated($created)
{
$this->created = $created;
return $this;
}
/**
* Get created
*
* @return \DateTime
*/
public function getCreated()
{
return $this->created;
}
/**
* Set deleted
*
* @param \DateTime $deleted
* @return Employee
*/
public function setDeleted($deleted)
{
$this->deleted = $deleted;
return $this;
}
/**
* Get deleted
*
* @return \DateTime
*/
public function getDeleted()
{
return $this->deleted;
}
/**
* Get id
*
* @return guid
*/
public function getId()
{
return $this->id;
}
/**
* Set user
*
* @param \AppBundle\Entity\User $user
* @return Employee
*/
public function setUser(\AppBundle\Entity\User $user = null)
{
$this->user = $user;
return $this;
}
/**
* Get user
*
* @return \AppBundle\Entity\User
*/
public function getUser()
{
return $this->user;
}
/**
* Set organisation
*
* @param \AppBundle\Entity\Organisation $organisation
* @return Employee
*/
public function setOrganisation(\AppBundle\Entity\Organisation $organisation = null)
{
$this->organisation = $organisation;
return $this;
}
/**
* Get organisation
*
* @return \AppBundle\Entity\Organisation
*/
public function getOrganisation()
{
return $this->organisation;
}
/**
* Set joindate
*
* @param \DateTime $joindate
* @return Employee
*/
public function setJoindate($joindate)
{
$this->joindate = $joindate;
return $this;
}
/**
* Get joindate
*
* @return \DateTime
*/
public function getJoindate()
{
return $this->joindate;
}
/**
* Set leavedate
*
* @param \DateTime $leavedate
* @return Employee
*/
public function setleavedate($leavedate)
{
$this->leavedate = $leavedate;
return $this;
}
/**
* Get leavedate
*
* @return \DateTime
*/
public function getleavedate()
{
return $this->leavedate;
}
}
【问题讨论】：
-
只是在黑暗中快速拍摄。您的员工数据库表是否正确命名为“员工”（即大写）？
-
您是否检查过您的用户是否确实在数据库中连接了员工（正确链接并保存）...有时会发生：P ...您是否使用自动生成器来创建实体和关系?
-
@technetium 您是如何在 User.php 中实现所有这些方法的。我的意思是这是基于 Doctrine 文档的一些广泛使用的实现，还是只是您的工作？我的意思是要获得相关的实体需要做很多工作。我的意思是它一定是开发人员广泛需要的东西，我不敢相信这个实现没有神奇的替代方案。你怎么看？
标签： php symfony doctrine-orm doctrine one-to-many