-<?php
+<?php declare(strict_types=1);
+
+/*
+ * this file is part of the rapsys packbundle package.
+ *
+ * (c) raphaël gertz <symfony@rapsys.eu>
+ *
+ * for the full copyright and license information, please view the license
+ * file that was distributed with this source code.
+ */
 
-// src/Rapsys/UserBundle/Entity/User.php
 namespace Rapsys\UserBundle\Entity;
 
-use Rapsys\UserBundle\Entity\Group;
-use Symfony\Component\Security\Core\User\UserInterface;
 use Doctrine\Common\Collections\ArrayCollection;
+use Doctrine\ORM\Event\PreUpdateEventArgs;
+use Symfony\Component\Security\Core\User\UserInterface;
+
 use Rapsys\UserBundle\Entity\Civility;
+use Rapsys\UserBundle\Entity\Group;
 
+/**
+ * User
+ */
 class User implements UserInterface, \Serializable {
        /**
         * @var integer
         */
        protected $password;
 
+       /**
+        * @var string
+        */
+       protected $slug;
+
        /**
         * @var bool
         */
        protected $updated;
 
        /**
-        * @var \Rapsys\UserBundle\Entity\Civility
+        * @var Civility
         */
        protected $civility;
 
        /**
-        * @var \Doctrine\Common\Collections\ArrayCollection
+        * @var ArrayCollection
         */
        protected $groups;
 
        /**
         * Constructor
+        *
+        * @param string $mail The user mail
         */
-       public function __construct() {
+       public function __construct(string $mail) {
+               $this->mail = $mail;
                $this->active = false;
                $this->disabled = false;
                $this->groups = new ArrayCollection();
         *
         * @return User
         */
-       public function setMail(string $mail) {
+       public function setMail(string $mail): User {
                $this->mail = $mail;
 
                return $this;
         *
         * @return User
         */
-       public function setPseudonym(string $pseudonym) {
+       public function setPseudonym(string $pseudonym): User {
                $this->pseudonym = $pseudonym;
 
                return $this;
         *
         * @return User
         */
-       public function setForename(string $forename) {
+       public function setForename(string $forename): User {
                $this->forename = $forename;
 
                return $this;
         *
         * @return User
         */
-       public function setSurname(string $surname) {
+       public function setSurname(string $surname): User {
                $this->surname = $surname;
 
                return $this;
         *
         * @return User
         */
-       public function setPassword(string $password) {
+       public function setPassword(string $password): User {
                $this->password = $password;
 
                return $this;
                return $this->password;
        }
 
+       /**
+        * Set slug
+        *
+        * @param string $slug
+        *
+        * @return User
+        */
+       public function setSlug(?string $slug): User {
+               $this->slug = $slug;
+
+               return $this;
+       }
+
+       /**
+        * Get slug
+        *
+        * @return string
+        */
+       public function getSlug(): ?string {
+               return $this->slug;
+       }
+
        /**
         * Set active
         *
         *
         * @return User
         */
-       public function setActive(bool $active) {
+       public function setActive(bool $active): User {
                $this->active = $active;
 
                return $this;
         *
         * @return User
         */
-       public function setDisabled(bool $disabled) {
+       public function setDisabled(bool $disabled): User {
                $this->disabled = $disabled;
 
                return $this;
         *
         * @return User
         */
-       public function setCreated(\DateTime $created) {
+       public function setCreated(\DateTime $created): User {
                $this->created = $created;
 
                return $this;
         *
         * @return User
         */
-       public function setUpdated(\DateTime $updated) {
+       public function setUpdated(\DateTime $updated): User {
                $this->updated = $updated;
 
                return $this;
        /**
         * Set civility
         */
-       public function setCivility(Civility $civility) {
+       public function setCivility(Civility $civility): User {
                $this->civility = $civility;
 
                return $this;
        /**
         * Add group
         *
-        * @param \Rapsys\UserBundle\Entity\Group $group
+        * @param Group $group
         *
         * @return User
         */
        /**
         * Remove group
         *
-        * @param \Rapsys\UserBundle\Entity\Group $group
+        * @param Group $group
         */
        public function removeGroup(Group $group) {
                $this->groups->removeElement($group);
        /**
         * Get groups
         *
-        * @return \Doctrine\Common\Collections\ArrayCollection
+        * @return ArrayCollection
         */
        public function getGroups(): ArrayCollection {
                return $this->groups;
        /**
         * Check if account is activated
         *
-        * @xxx was from deprecated AdvancedUserInterface, see if it's used anymore
+        * It was from deprecated AdvancedUserInterface, see if it's used anymore
+        *
         * @see vendor/symfony/security-core/User/AdvancedUserInterface.php
         */
        public function isActivated(): bool {
        /**
         * Check if account is disabled
         *
-        * @xxx was from deprecated AdvancedUserInterface, see if it's used anymore
+        * It was from deprecated AdvancedUserInterface, see if it's used anymore
+        *
         * @see vendor/symfony/security-core/User/AdvancedUserInterface.php
         */
        public function isDisabled(): bool {
        /**
         * {@inheritdoc}
         */
-       public function preUpdate(\Doctrine\ORM\Event\PreUpdateEventArgs $eventArgs) {
+       public function preUpdate(PreUpdateEventArgs $eventArgs) {
                //Check that we have an user instance
                if (($user = $eventArgs->getEntity()) instanceof User) {
                        //Set updated value