symfony2 how to get mapping table id? - php

Question

how to get mapping table id from mappipng table?
i have user and group table mapped together
and i want to get group id at login time but i am not getting it.
i have three table
user, group, user_groupname
->first table
user
id,name
->second table
group
id,name
->third table
groupname
user_id,group_id
first entity is as follows
/Entity/groupname.php
class groupname
{
/**
* #var integer
*
* #ORM\Column(name="id", type="integer", nullable=false)
* #ORM\Id
* #ORM\GeneratedValue(strategy="IDENTITY")
*/
private $id;
/**
* #var string
*
* #ORM\Column(name="name", type="string", length=255, nullable=false)
*/
private $name;
/**
* #var \Doctrine\Common\Collections\Collection
*
* #ORM\ManyToMany(targetEntity="role", inversedBy="groupname")
* #ORM\JoinTable(name="groupname_role",
* joinColumns={
* #ORM\JoinColumn(name="groupname_id", referencedColumnName="id")
* },
* inverseJoinColumns={
* #ORM\JoinColumn(name="role_id", referencedColumnName="id")
* }
* )
*/
private $role;
/**
* #ORM\ManyToMany(targetEntity="\Dashboard\SecurityBundle\Entity\User", mappedBy="groupname")
*/
private $users;
}
second entity is as follows
/Entity/User.php
<?php
namespace Dashboard\SecurityBundle\Entity;
use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Security\Core\User\UserInterface;
use Symfony\Component\Security\Core\User\AdvancedUserInterface;
use Doctrine\Common\Collections\ArrayCollection;
/**
* Dashboard\SecurityBundle\Entity\User
*
* #ORM\Table(name="users")
* #ORM\Entity(repositoryClass="Dashboard\SecurityBundle\Repository\UserRepository")
* #ORM\HasLifecycleCallbacks()
*/
class User implements UserInterface, \Serializable, AdvancedUserInterface
{
/**
* #ORM\Column(type="integer")
* #ORM\Id
* #ORM\GeneratedValue(strategy="AUTO")
*/
protected $id;
/**
* #ORM\Column(type="string", length=25, unique=true)
*/
protected $username;
*/
/**
* #ORM\ManyToMany(targetEntity="\Dashboard\AdminManageUserBundle\Entity\groupname", inversedBy="users")
*
*/
public $groupname;
/**
* #var Dashboard\SecurityBundle\Entity\UserPhoto UserPhoto
*
*/
private $userPhoto;
public function __construct()
{
$this->groupname = new ArrayCollection();
}
/**
* Add groupname
*
* #param \Dashboard\AdminManageUserBundle\Entity\groupname $groupname
* #return User
*/
public function addGroupname(\Dashboard\AdminManageUserBundle\Entity\groupname $groupname)
{
$this->groupname[] = $groupname;
return $this;
}
/**
* Remove groupname
*
* #param \Dashboard\AdminManageUserBundle\Entity\groupname $groupname
*/
public function removeGroupname(\Dashboard\AdminManageUserBundle\Entity\groupname $groupname)
{
$this->groupname->removeElement($groupname);
}
/**
* Get groupname
*
* #return \Doctrine\Common\Collections\ArrayCollection
*/
public function getGroupname()
{
return $this->groupname;
}
}
and i have following code right in Controller file
$userEntity = $this->getDoctrine()->getRepository('DashboardSecurityBundle:User')->findOneBy(array('username' =>$usernames));
and i have print_R($userEntity) pc got hanged

Answer 1

$userEntiry is a object of UserEntity
So, your pc got hanged.
please try this.
print_r($userEntity->getUsername());