diff --git a/src/Controller/MigrationController.php b/src/Controller/MigrationController.php
index 6eeb6b1..1003abf 100755
--- a/src/Controller/MigrationController.php
+++ b/src/Controller/MigrationController.php
@@ -45,11 +45,11 @@ class MigrationController extends EmailsController {
 
 
 		$pdo_options[ PDO::ATTR_ERRMODE ] = PDO::ERRMODE_EXCEPTION;
-		$bdd                               = new PDO( 'mysql:host=localhost;dbname=' . $this->getParameter( 'OLD_DATABASE_NAME' ),
+		$bdd                              = new PDO( 'mysql:host=localhost;dbname=' . $this->getParameter( 'OLD_DATABASE_NAME' ),
 			$this->getParameter( 'OLD_DATABASE_USER' ),
 			$this->getParameter( 'OLD_DATABASE_PASS' ),
 			$pdo_options );
-		$res_polls                         = $bdd->query( 'SELECT * FROM fd_poll' );
+		$res_polls                        = $bdd->query( 'SELECT * FROM fd_poll' );
 		while ( $d = $res_polls->fetch( PDO::FETCH_OBJ ) ) {
 
 			$debug .= " <br> ajout de sondage : " . $d->title . '  - ' . $d->id;
diff --git a/src/Entity/Choice.php b/src/Entity/Choice.php
index 048b4b3..395d691 100755
--- a/src/Entity/Choice.php
+++ b/src/Entity/Choice.php
@@ -2,6 +2,7 @@
 
 namespace App\Entity;
 
+use App\Traits\TimeStampableTrait;
 use DateTime;
 use DateTimeInterface;
 use Doctrine\Common\Collections\ArrayCollection;
@@ -15,6 +16,9 @@ use JMS\Serializer\Annotation as Serializer;
  * @Serializer\ExclusionPolicy("all")
  */
 class Choice {
+
+	use TimeStampableTrait;
+
 	/**
 	 * @ORM\Id()
 	 * @ORM\GeneratedValue()
@@ -36,11 +40,7 @@ class Choice {
 	 */
 	public $url;
 
-	/**
-	 * @ORM\Column(type="datetime", nullable=true)
-	 * @Serializer\Type("datetime")
-	 */
-	public $dateTime;
+
 	/**
 	 * @ORM\OneToMany(targetEntity="App\Entity\Vote", mappedBy="choice", cascade={"persist"})
 	 * @Serializer\Type("App\Entity\Vote")
@@ -61,13 +61,18 @@ class Choice {
 		}
 	}
 
+	public function setDateTime( ?DateTimeInterface $dateTime ): self {
+		$this->dateTime = $dateTime;
+
+		return $this;
+	}
 
 	public function display() {
 		return [
-			'id'   => $this->getId(),
-			'date' => $this->getDateTime(),
-			'name' => $this->getName(),
-			'url'  => $this->getUrl(),
+			'id'         => $this->getId(),
+			'created_at' => $this->getCreatedAtAsString(),
+			'name'       => $this->getName(),
+			'url'        => $this->getUrl(),
 		];
 	}
 
@@ -75,16 +80,6 @@ class Choice {
 		return $this->id;
 	}
 
-	public function getDateTime(): ?DateTimeInterface {
-		return $this->dateTime;
-	}
-
-	public function setDateTime( ?DateTimeInterface $dateTime ): self {
-		$this->dateTime = $dateTime;
-
-		return $this;
-	}
-
 	public function getName(): ?string {
 		return $this->name;
 	}
@@ -105,6 +100,10 @@ class Choice {
 		return $this;
 	}
 
+	public function getDateTime(): ?DateTimeInterface {
+		return $this->dateTime;
+	}
+
 	public function getPoll(): ?Poll {
 		return $this->poll;
 	}
diff --git a/src/Entity/Comment.php b/src/Entity/Comment.php
index 05ba2ee..96b9a7a 100755
--- a/src/Entity/Comment.php
+++ b/src/Entity/Comment.php
@@ -2,6 +2,7 @@
 
 namespace App\Entity;
 
+use App\Traits\TimeStampableTrait;
 use DateTime;
 use DateTimeInterface;
 use Doctrine\ORM\Mapping as ORM;
@@ -12,6 +13,9 @@ use JMS\Serializer\Annotation as Serializer;
  * @Serializer\ExclusionPolicy("all")
  */
 class Comment {
+
+	use TimeStampableTrait;
+
 	/**
 	 * @ORM\Id()
 	 * @ORM\GeneratedValue()
@@ -40,13 +44,6 @@ class Comment {
 	 */
 	private $text;
 
-	/**
-	 * @ORM\Column(type="datetime")
-	 * @Serializer\Type("datetime")
-	 * @Serializer\Expose()
-	 */
-	private $createdAt;
-
 	/**
 	 * @ORM\ManyToOne(targetEntity="App\Entity\Poll", inversedBy="comments")
 	 */
@@ -56,12 +53,18 @@ class Comment {
 		$this->setCreatedAt( new DateTime() );
 	}
 
+	public function setCreatedAt( DateTimeInterface $createdAt ): self {
+		$this->createdAt = $createdAt;
+
+		return $this;
+	}
+
 	function display() {
 		return [
-			'id'     => $this->getId(),
-			'text'   => $this->getText(),
-			'pseudo' => $this->getOwner()->getPseudo(),
-			'date'   => $this->getCreatedAt(),
+			'id'         => $this->getId(),
+			'text'       => $this->getText(),
+			'pseudo'     => $this->getOwner()->getPseudo(),
+			'created_at' => $this->getCreatedAtAsString(),
 		];
 	}
 
@@ -93,12 +96,6 @@ class Comment {
 		return $this->createdAt;
 	}
 
-	public function setCreatedAt( DateTimeInterface $createdAt ): self {
-		$this->createdAt = $createdAt;
-
-		return $this;
-	}
-
 	public function getPoll(): ?Poll {
 		return $this->poll;
 	}
diff --git a/src/Entity/Owner.php b/src/Entity/Owner.php
index 66d37f0..5c853c0 100755
--- a/src/Entity/Owner.php
+++ b/src/Entity/Owner.php
@@ -2,6 +2,7 @@
 
 namespace App\Entity;
 
+use App\Traits\TimeStampableTrait;
 use DateTime;
 use DateTimeInterface;
 use Doctrine\Common\Collections\ArrayCollection;
@@ -13,6 +14,8 @@ use JMS\Serializer\Annotation as Serializer;
  * @ORM\Entity(repositoryClass="App\Repository\OwnerRepository")
  */
 class Owner {
+	use TimeStampableTrait;
+
 	/**
 	 * @ORM\Column(type="string", length=255)
 	 * @Serializer\Type("string")
@@ -51,10 +54,7 @@ class Owner {
 	 * @ORM\Column(type="string", length=255)
 	 */
 	private $modifierToken;
-	/**
-	 * @ORM\Column(type="datetime" , options={"default"="CURRENT_TIMESTAMP"})
-	 */
-	private $createdAt;
+
 	/**
 	 * @ORM\Column(type="datetime" , options={"default"="CURRENT_TIMESTAMP"},nullable=true)
 	 */
@@ -68,6 +68,45 @@ class Owner {
 		$this->setModifierToken( uniqid() );
 	}
 
+	public function setCreatedAt( DateTimeInterface $createdAt ): self {
+		$this->createdAt = $createdAt;
+
+		return $this;
+	}
+
+	public function display() {
+		return [
+			'pseudo' => $this->getPseudo(),
+		];
+	}
+
+	public function getPseudo(): ?string {
+		return $this->pseudo;
+	}
+
+	public function setPseudo( string $pseudo ): self {
+		$this->pseudo = $pseudo;
+
+		return $this;
+	}
+
+	public function displayForAdmin() {
+		return [
+			'pseudo'         => $this->getPseudo(),
+			'modifier_token' => $this->getModifierToken(),
+			'created_at'     => $this->getCreatedAtAsString(),
+		];
+	}
+
+	public function getModifierToken(): ?string {
+		return $this->modifierToken;
+	}
+
+	public function setModifierToken( string $modifierToken ): self {
+		$this->modifierToken = $modifierToken;
+
+		return $this;
+	}
 
 	public function getId(): ?int {
 		return $this->id;
@@ -83,16 +122,6 @@ class Owner {
 		return $this;
 	}
 
-	public function getPseudo(): ?string {
-		return $this->pseudo;
-	}
-
-	public function setPseudo( string $pseudo ): self {
-		$this->pseudo = $pseudo;
-
-		return $this;
-	}
-
 	/**
 	 * @return Collection|Poll[]
 	 */
@@ -177,16 +206,6 @@ class Owner {
 		return $this;
 	}
 
-	public function getModifierToken(): ?string {
-		return $this->modifierToken;
-	}
-
-	public function setModifierToken( string $modifierToken ): self {
-		$this->modifierToken = $modifierToken;
-
-		return $this;
-	}
-
 	public function addComment( Comment $comment ): self {
 		if ( ! $this->comments->contains( $comment ) ) {
 			$this->comments[] = $comment;
@@ -212,12 +231,6 @@ class Owner {
 		return $this->createdAt;
 	}
 
-	public function setCreatedAt( DateTimeInterface $createdAt ): self {
-		$this->createdAt = $createdAt;
-
-		return $this;
-	}
-
 	public function getRequestedPollsDate() {
 		return $this->requestedPollsDate;
 	}
diff --git a/src/Entity/Poll.php b/src/Entity/Poll.php
index 1daf0a7..1f5d154 100755
--- a/src/Entity/Poll.php
+++ b/src/Entity/Poll.php
@@ -254,11 +254,11 @@ class Poll {
 	}
 
 	public function displayForAdmin() {
-		$content                           = $this->display();
-		$content[ 'owner_modifier_token' ] = $this->getOwner()->getModifierToken();
-		$content[ 'admin_key' ]            = $this->getAdminKey();
-		$content[ 'password_hash' ]        = $this->getPassword();
-		$content[ 'id' ]                   = $this->getId();
+		$content                    = $this->display();
+		$content[ 'owner' ]         = $this->getOwner()->displayForAdmin();
+		$content[ 'admin_key' ]     = $this->getAdminKey();
+		$content[ 'password_hash' ] = $this->getPassword();
+		$content[ 'id' ]            = $this->getId();
 
 		return $content;
 	}
@@ -282,7 +282,8 @@ class Poll {
 
 		return [
 			'title'                         => $this->getTitle(),
-			'creation_date'                 => $this->getCreationDate()->format( 'c' ),
+			'description'                   => $this->getDescription(),
+			'created_at'                    => $this->getCreationDate()->format( 'c' ),
 			'expiracy_date'                 => $this->getExpiracyDate()->format( 'c' ),
 			'votes_max'                     => $this->getVotesMax(),
 			'choices_max'                   => $this->getChoicesMax(),
@@ -396,6 +397,16 @@ class Poll {
 		return $this;
 	}
 
+	public function getDescription(): ?string {
+		return $this->description;
+	}
+
+	public function setDescription( string $description ): self {
+		$this->description = $description;
+
+		return $this;
+	}
+
 	public function getCreationDate(): ?DateTimeInterface {
 		return $this->creationDate;
 	}
@@ -556,16 +567,6 @@ class Poll {
 		return $this->votes;
 	}
 
-	public function getDescription(): ?string {
-		return $this->description;
-	}
-
-	public function setDescription( string $description ): self {
-		$this->description = $description;
-
-		return $this;
-	}
-
 	public function getCustomUrl(): ?string {
 		return $this->customUrl;
 	}
diff --git a/src/Traits/RandomTrait.php b/src/Traits/RandomTrait.php
new file mode 100755
index 0000000..6efe6fb
--- /dev/null
+++ b/src/Traits/RandomTrait.php
@@ -0,0 +1,8 @@
+<?php
+
+namespace App\Traits;
+
+trait RandomTrait {
+
+
+}