diff --git a/business/User.php b/business/User.php
index 8f283c2..489fb40 100644
--- a/business/User.php
+++ b/business/User.php
@@ -1,13 +1,13 @@
 <?php
     class User{
+        private int $id;
         private string $login;
         private string $mdp;
-        private bool $admin;
 
-        function __construct($login, $mdp, $admin=False) {
+        function __construct($id, $login, $mdp) {
+            $this->id = $id;
             $this->login = $login;
             $this->mdp = $mdp;
-            $this->admin = $admin;
         }
 
         function get_login() {
@@ -26,12 +26,12 @@
             $this->mdp = $mdp;
         }
 
-        function get_admin() {
-            return $this->admin;
+        function get_id() {
+            return $this->id;
         }
 
-        function set_admin($admin) {
-            $this->admin = $admin;
+        function set_id($id) {
+            $this->id = $id;
         }
     }
 ?>
\ No newline at end of file
diff --git a/config/config.php b/config/config.php
index 9e59053..e2a19d3 100644
--- a/config/config.php
+++ b/config/config.php
@@ -1,6 +1,7 @@
 <?php
+    //gen
+    $rep=__DIR__.'/../';
 
-//gen
-$rep=__DIR__.'/../';
-
+    require('dal/Connection.php');
+    $con = new Connection('mysql:host=localhost;dbname=dbanboudoul', 'anboudoul', 'achanger');
 ?>
\ No newline at end of file
diff --git a/dal/GatUser.php b/dal/GatUser.php
index cf856c3..36f6cc2 100644
--- a/dal/GatUser.php
+++ b/dal/GatUser.php
@@ -1,5 +1,45 @@
 <?php
 
-// find(critere (tableau), valeur associée aux critères)
+// password_hash
+// password_verify
+    class GatUser{
+        private $con;
 
+        public function __construct(Connection $con) { 
+        $this->con = $con; }
+
+        public function create($login, $mdp){
+            $pwrd = password_hash($mdp, PASSWORD_BCRYPT, array("cost" => 12));
+            $query = 'INSERT INTO User VALUES (:login, :mdp)';
+            $this->con->executeQuery($query,  array(':login'=>array($login, PDO::PARAM_STR),
+                                            ':mdp'=>array($pwrd, PDO::PARAM_STR)));
+            $result = $con->getResults();
+            return $result;
+        }
+
+        public function updateLogin($value){
+            $query = 'UPDATE User WHERE login = :value';
+            $this->con->executeQuery($query,  array(':value'=>array($value, PDO::PARAM_STR)));
+        }
+
+        public function updateMdp($login, $mdp){
+            $pwrd = password_hash($mdp, PASSWORD_BCRYPT, array("cost" => 12));
+            $query = 'UPDATE User SET mdp = :value WHERE login = :login';
+            $this->con->executeQuery($query,  array(':login'=>array($pwrd, PDO::PARAM_STR),
+                                                ':value'=>array($pwrd, PDO::PARAM_STR)));
+        }
+
+        public function delete($value){
+            $query = 'DELETE FROM User WHERE login = :value';
+            $this->con->executeQuery($query,  array(':value'=>array($value, PDO::PARAM_STR)));
+        }
+        
+        public function find($value, $parameterkind){
+            $query = 'SELECT login FROM User WHERE :parameterkind = :value';
+            $this->con->executeQuery($query,  array(':value'=>array($value, PDO::PARAM_STR),
+                                            ':parameterkind'=>array($parameterkind, PDO::PARAM_STR)));
+            $result = $this->con->getResults();
+            return $result;
+        }
+    }
 ?>
\ No newline at end of file
diff --git a/index.php b/index.php
index 1434728..b28f532 100644
--- a/index.php
+++ b/index.php
@@ -1,7 +1,8 @@
 <?php
+/*
     $fc = new FrontCtrl();
     $TMessage = array();
 
     require_once(controller/FrontCtrl.php);
-    require(erreur.php);
+    require(erreur.php);*/
 ?>
\ No newline at end of file
diff --git a/model/ModelUser.php b/model/ModelUser.php
index b0d4a6b..db18e13 100644
--- a/model/ModelUser.php
+++ b/model/ModelUser.php
@@ -1,4 +1,38 @@
 <?php
-#finduserbylogin
-#recup infos de la gateway et transforme en instance de classe metier
+    class ModelUser{
+        private $con; 
+        private $gat;
+        
+        public function __construct(Connection $con) { 
+        $this->con = $con;
+        $this->gat = new GatUser($con); }
+
+        function ajouter($login, $mdp){
+            $user = findByLogin($login);
+            if (empty($user))
+                $gat->create($login, $mdp);
+        }
+
+        function supprimer($login){
+            $gat->delete($login);
+        }
+
+        function modifMdp($login, $mdp){
+            $gat->updateMdp($login, $mdp);
+        }
+
+        function modifLogin($login){
+            $user = findByLogin($login);
+            if (empty($user))
+                $gat->updateLogin($login);
+        }
+
+        function findByLogin($login){
+            if ($login !== " " && $login != null )
+            $results = $gat->find($login, "login");
+            $user = new User($results["login"]);
+            return $user;
+        }
+    }
+
 ?>
\ No newline at end of file
diff --git a/tests/test.php b/tests/test.php
new file mode 100644
index 0000000..fecc775
--- /dev/null
+++ b/tests/test.php
@@ -0,0 +1,7 @@
+<?php
+    require('../dal/Connection.php');
+    require('../dal/GatUser.php');
+    $con = new Connection('mysql:host=localhost;dbname=dbanboudoul', 'anboudoul', 'achanger');
+    $gat = new GatUser($con);
+    $gat->create("Nicolas", "tranquiloubilou");
+?>
\ No newline at end of file