diff --git a/ArticleDao.php b/ArticleDao.php
index 50cce95..57f96ea 100644
--- a/ArticleDao.php
+++ b/ArticleDao.php
@@ -1,3 +1,57 @@
 <?php
 
+/**
+ * Class ArticleDao
+ * @author Simon Vieille <simon@deblan.fr>
+ */
+class ArticleDao
+{
+    protected $pdo;
+
+    public function __construct()
+    {
+        $this->pdo = new Pdo('mysql:dbname=test;host=127.0.0.1', 'root', 'root');
+    }
+
+    public static function create()
+    {
+        return new static();
+    }
+
+    public function findById($id)
+    {
+        $query = $this->pdo->prepare('select * from article where id=:id');
+        
+        $query->execute([
+            ':id' => $id,
+        ]);
+
+        $results = $query->fetch();
+
+        if (!empty($results)) {
+            return $this->hydrate($results);
+        }
+
+        return null;
+    }
+    
+    public function hydrate(array $datas)
+    {
+        $article = new Article();
+        
+        if (isset($datas['id'])) {
+            $article->setId($datas['id']);
+        }
+        
+        if (isset($datas['title'])) {
+            $article->setTitle($datas['title']);
+        }
+        
+        if (isset($datas['content'])) {
+            $article->setContent($datas['content']);
+        }
+
+        return $article;
+    }
+}
 
diff --git a/User.php b/User.php
index a8a9bf9..248672b 100644
--- a/User.php
+++ b/User.php
@@ -11,6 +11,11 @@ class User
      */
     protected $id;
     
+    /**
+     * @var string
+     */
+    protected $username;
+    
     /**
      * @var array $votes;
      */
@@ -34,6 +39,27 @@ class User
     {
         return $this->id;
     }
+
+
+    /**
+     * @param string $username
+     * @return 
+     */
+    public function setUsername($username)
+    {
+        $this->username = (string) $username;
+
+        return $this;
+    }
+
+    /**
+     * @return string $username
+     */
+    public function getUsername()
+    {
+        return $this->username;
+    }
+
     
     /**
      * @param Vote $vote
diff --git a/UserDao.php b/UserDao.php
index e69de29..8ba37f9 100644
--- a/UserDao.php
+++ b/UserDao.php
@@ -0,0 +1,53 @@
+<?php
+
+/**
+ * Class UserDao
+ * @author Simon Vieille <simon@deblan.fr>
+ */
+class UserDao
+{
+    protected $pdo;
+
+    public function __construct()
+    {
+        $this->pdo = new Pdo('mysql:dbname=test;host=127.0.0.1', 'root', 'root');
+    }
+
+    public static function create()
+    {
+        return new static();
+    }
+
+    public function findById($id)
+    {
+        $query = $this->pdo->prepare('select * from user where id=:id');
+        
+        $query->execute([
+            ':id' => $id,
+        ]);
+
+        $results = $query->fetch();
+
+        if (!empty($results)) {
+            return $this->hydrate($results);
+        }
+
+        return null;
+    }
+    
+    public function hydrate(array $datas)
+    {
+        $article = new User();
+        
+        if (isset($datas['id'])) {
+            $article->setId($datas['id']);
+        }
+        
+        if (isset($datas['username'])) {
+            $article->setUsername($datas['username']);
+        }
+
+        return $article;
+    }
+}
+
diff --git a/VoteDao.php b/VoteDao.php
index 496bbdd..dd8006a 100644
--- a/VoteDao.php
+++ b/VoteDao.php
@@ -55,7 +55,7 @@ class VoteDao
     public function hydrate(array $datas)
     {
         $vote = new Vote();
-zR
+        
         if (isset($datas['id'])) {
             $vote->setId($datas['id']);
         }
diff --git a/autoload.php b/autoload.php
new file mode 100644
index 0000000..4f14a26
--- /dev/null
+++ b/autoload.php
@@ -0,0 +1,13 @@
+<?php
+
+function __autoload($name)
+{
+    static $classes = [];
+    
+    if (isset($classes[$name])) {
+        return;
+    }
+
+    require __DIR__.'/'.$name.'.php';
+}
+
diff --git a/index.php b/index.php
new file mode 100644
index 0000000..5588587
--- /dev/null
+++ b/index.php
@@ -0,0 +1,8 @@
+<?php
+
+require __DIR__.'/autoload.php';
+
+$articleFoo = ArticleDao::create()->findById(1);
+$votes = $articleFoo->getVotes();
+
+var_dump($votes);