diff --git a/Project/php/gateway/AbsGateway.php b/Project/php/gateway/AbsGateway.php
index 0b3ebfc..6c9c8f1 100755
--- a/Project/php/gateway/AbsGateway.php
+++ b/Project/php/gateway/AbsGateway.php
@@ -18,7 +18,7 @@ abstract class AbsGateway
     }
 
     public abstract function add(array $parameters): int;
-    public abstract function remove(int $id): void;
+    //public abstract function remove(int $id): void;
     public abstract function findAll(): array;
     public abstract function findById(int $id);
 }
\ No newline at end of file
diff --git a/Project/php/gateway/TranslationGateway.php b/Project/php/gateway/TranslationGateway.php
new file mode 100644
index 0000000..124842e
--- /dev/null
+++ b/Project/php/gateway/TranslationGateway.php
@@ -0,0 +1,85 @@
+<?php
+
+namespace gateway;
+
+use Exception;
+use model\Translation;
+use PDO;
+use PDOException;
+
+class TranslationGateway extends AbsGateway
+{
+    public function addWord(string $word): void {
+        try {
+            $query = "INSERT INTO Vocabulary VALUES (:word) ON DUPLICATE KEY UPDATE word=:word";
+            $args = array(':word' => array($word, PDO::PARAM_STR));
+            $this->con->executeQuery($query, $args);
+        }
+        catch (PDOException $e) {
+            throw new Exception($e->getMessage());
+        }
+    }
+
+    public function add(array $parameters): int // require 3 elements
+    {
+        try {
+            $this->addWord($parameters[0]);
+            $this->addWord($parameters[1]);
+            $query = "INSERT INTO Translate VALUES(:word1, :word2, :id)";
+            $args = array(':word1' => array($parameters[0], PDO::PARAM_STR),
+                ':word2' => array($parameters[1], PDO::PARAM_STR),
+                ':id' => array($parameters[2], PDO::PARAM_INT));
+            $this->con->executeQuery($query, $args);
+            return $this->con->lastInsertId();
+        }
+        catch (PDOException $e) {
+            throw new Exception($e->getMessage().+$e->getLine());
+        }
+    }
+
+    public function remove(string $word1, string $word2, int $id): void {
+        try {
+            $query = "DELETE FROM Translate WHERE firstWord=:word1 AND secondWord=:word2 AND listVoc=:id";
+            $args = array(':word1' => array($word1, PDO::PARAM_STR),
+                ':word2' => array($word2, PDO::PARAM_STR),
+                ':id' => array($id, PDO::PARAM_INT));
+            $this->con->executeQuery($query, $args);
+        }
+        catch (PDOException $e) {
+            throw new Exception($e->getMessage().+$e->getLine());
+        }
+    }
+
+    public function findAll(): array
+    {
+        try {
+            $query = "SELECT * FROM Translate";
+            $this->con->executeQuery($query);
+            $results = $this->con->getResults();
+            $tab = array();
+            foreach ($results as $row) $tab[] = new Translation($row['firstWord'], $row['secondWord'], $row['listVoc']);
+
+            return $tab;
+        }
+        catch (PDOException $e) {
+            throw new Exception($e->getMessage());
+        }
+    }
+
+    public function findById(int $id)
+    {
+        try {
+            $query = "SELECT * FROM Translate WHERE listVoc=:id";
+            $args = array(':id' => array($id, PDO::PARAM_INT));
+            $this->con->executeQuery($query, $args);
+            $results = $this->con->getResults();
+            $tab = array();
+            foreach ($results as $row) $tab[] = new Translation($row['firstWord'], $row['secondWord'], $row['listVoc']);
+
+            return $tab;
+        }
+        catch (PDOException $e) {
+            throw new Exception($e->getMessage());
+        }
+    }
+}
\ No newline at end of file
diff --git a/Project/php/gateway/VocabularyListGateway.php b/Project/php/gateway/VocabularyListGateway.php
index 6bfcd5c..ff0c037 100755
--- a/Project/php/gateway/VocabularyListGateway.php
+++ b/Project/php/gateway/VocabularyListGateway.php
@@ -31,6 +31,10 @@ class VocabularyListGateway extends AbsGateway
     public function remove(int $id): void
     {
         try{
+            $query = "DELETE FROM Practice WHERE vocabID=:id";
+            $args = array(':id'=>array($id,PDO::PARAM_INT));
+            $this->con->ExecuteQuery($query,$args);
+
             $query = "DELETE FROM VocabularyList v WHERE v.id=:id ";
             $args = array(':id'=>array($id,PDO::PARAM_INT));
             $this->con->ExecuteQuery($query,$args);
@@ -107,4 +111,19 @@ class VocabularyListGateway extends AbsGateway
             throw new Exception('problème pour modifier les vocabulaires');
         }
     }
+
+    public function findByGroup(int $id): array {
+        try {
+            $query = "SELECT v.* FROM VocabularyList v, Practice p WHERE v.id=p.vocabID AND p.groupID=:id";
+            $args = array(':id' => array($id, PDO::PARAM_INT));
+            $this->con->executeQuery($query, $args);
+            $results = $this->con->getResults();
+            $tab = array();
+            foreach ($results as $row) $tab[] = new VocabularyList($row['id'], $row['name'], $row['image'], $row['userID']);
+            return $tab;
+        }
+        catch (PDOException $e) {
+            throw new Exception($e->getMessage());
+        }
+    }
 }
\ No newline at end of file
diff --git a/Project/php/model/Translation.php b/Project/php/model/Translation.php
new file mode 100644
index 0000000..bb6af63
--- /dev/null
+++ b/Project/php/model/Translation.php
@@ -0,0 +1,37 @@
+<?php
+
+namespace model;
+
+class Translation
+{
+    private string $word1;
+    private string $word2;
+    private int $listVocab;
+
+    /**
+     * @param string $word1
+     * @param string $word2
+     * @param int $listVocab
+     */
+    public function __construct(string $word1, string $word2, int $listVocab)
+    {
+        $this->word1 = $word1;
+        $this->word2 = $word2;
+        $this->listVocab = $listVocab;
+    }
+
+    public function getWord1(): string
+    {
+        return $this->word1;
+    }
+
+    public function getWord2(): string
+    {
+        return $this->word2;
+    }
+
+    public function getListVocab(): int
+    {
+        return $this->listVocab;
+    }
+}
\ No newline at end of file
diff --git a/Project/php/model/User.php b/Project/php/model/User.php
index 71ac8b6..162bfe8 100755
--- a/Project/php/model/User.php
+++ b/Project/php/model/User.php
@@ -91,11 +91,6 @@ class User
         return $this->roles;
     }
 
-    public function __toString(): string
-    {
-        $s = "User : ".$this->id." ".$this->name." ".$this->surname." ".$this->nickname." ".$this->email;
-        foreach ($this->roles as $role) $s = $s." ".$role;
-        return $s;
-    }
+
 }
 
diff --git a/Project/php/model/VocabularyList.php b/Project/php/model/VocabularyList.php
index d5d8b72..02751fd 100755
--- a/Project/php/model/VocabularyList.php
+++ b/Project/php/model/VocabularyList.php
@@ -4,26 +4,28 @@ namespace model;
 
 class VocabularyList
 {
+    private int $id;
     private String $name;
     private String $image;
-    private  int $id;
     private ?int $aut;
-    private array $vocabList;
 
     /**
+     * @param int $id
      * @param String $name
      * @param String $image
-     * @param int $id
      * @param int|null $aut
-     * @param array $vocabList
      */
-    public function __construct(string $name, string $image, int $id, ?int $aut, array $vocabList)
+    public function __construct(int $id, string $name, string $image, ?int $aut)
     {
+        $this->id = $id;
         $this->name = $name;
         $this->image = $image;
-        $this->id = $id;
         $this->aut = $aut;
-        $this->vocabList = $vocabList;
+    }
+
+    public function getId(): int
+    {
+        return $this->id;
     }
 
     public function getName(): string
@@ -36,23 +38,8 @@ class VocabularyList
         return $this->image;
     }
 
-    public function getId(): int
-    {
-        return $this->id;
-    }
-
     public function getAut(): ?int
     {
         return $this->aut;
     }
-
-    public function getVocabList(): array
-    {
-        return $this->vocabList;
-    }
-
-    public function __toString(): string
-    {
-        return "Vocabulaire :" . $this->id . $this->name . $this->image . $this->aut;
-    }
 }
\ No newline at end of file