Entity

<?php
namespace AppBundle\Entity;

use Doctrine\ORM\Mapping as ORM;
use Symfony\Component\Security\Core\User\UserInterface;

/**
 * @ORM\Table(name="abistuff_users")
 * @ORM\Entity(repositoryClass="AppBundle\Repository\UserRepository")
 */
class User implements UserInterface, \Serializable
{
    /**
     * @ORM\Column(type="integer")
     * @ORM\Id
     * @ORM\GeneratedValue(strategy="AUTO")
     */
    private $id;

    /**
     * @ORM\Column(type="string", length=40, unique=true)
     */
    private $username;

    /**
     * @ORM\Column(type="string", length=64)
     */
    private $password;

    /**
     * @ORM\Column(type="string", length=40, unique=true)
     */
    private $displayname;

    /**
     * @ORM\Column(type="boolean", name="is_admin")
     */
    private $isAdmin;

    /**
     * @ORM\Column(type="boolean", name="is_active")
     */
    private $isActive;


    public function __construct()
    {
        $this->isActive = true;
    }


    public function getSalt()
    {
        //Kann ruhig null sein, da BCRYPT verwendet wird, und der BCRYPT-Algorithmus das selber macht
        return null;
    }


    public function getRoles()
    {
        return array('ROLE_USER');
    }


    public function eraseCredentials(){   }


    public function serialize()
    {
        return serialize(array(
            $this->id, $this->username, $this->password
        ));
    }


    public function unserialize($serialized)
    {
        list($this->id, $this->username, $this->password) = $this->unserialize($serialized);
    }


    //<editor-fold desc="Getters und Setters">
    public function getUsername()
    {
        return $this->username;
    }


    public function getPassword()
    {
        return $this->password;
    }

    public function getId()
    {
        return $this->id;
    }

    public function getDisplayname()
    {
        return $this->displayname;
    }

    public function isActive()
    {
        return $this->isActive;
    }

    public function isAdmin()
    {
        return $this->isAdmin;
    }

    /**
     * @param mixed $username
     */
    public function setUsername($username)
    {
        $this->username = $username;
    }

    /**
     * @param mixed $password
     */
    public function setPassword($password)
    {
        $this->password = $password;
    }

    /**
     * @param mixed $displayname
     */
    public function setDisplayname($displayname)
    {
        $this->displayname = $displayname;
    }

    /**
     * @param mixed $isAdmin
     */
    public function setIsAdmin($isAdmin)
    {
        $this->isAdmin = $isAdmin;
    }

    /**
     * @param mixed $isActive
     */
    public function setIsActive($isActive)
    {
        $this->isActive = $isActive;
    }
    //</editor-fold>
}