diff --git a/Source/API/script/Gateway/GatewayForm.php b/Source/API/script/Gateway/GatewayForm.php
index 738dd7b..1154665 100644
--- a/Source/API/script/Gateway/GatewayForm.php
+++ b/Source/API/script/Gateway/GatewayForm.php
@@ -37,16 +37,23 @@ class GatewayForm
         return $this->connection->getResults();
     }
 
-    public function assignKeywordToQuestion(string $keyword, string $response, int $idQuestion)
+    public function deleteForm(Form $form): void
+    {
+        $query = "DELETE FROM Form WHERE id = :id";
+        $this->connection->executeQuery($query, array(
+            ':id' => array($form->getId(), PDO::PARAM_INT)
+        ));
+    }
+
+    public function assignKeywordToQuestion(string $keyword, string $response, int $idQuestion): void
     {
         echo $keyword;
         $query = "SELECT pr.id FROM Propose p, PossibleResponse pr WHERE p.question = :id AND p.possibleResponse = pr.id AND pr.content = :response";
         $this->connection->executeQuery($query, array(
-            ':id' => array($idQuestion, PDO::PARAM_STR),
+            ':id' => array($idQuestion, PDO::PARAM_INT),
             ':response' => array($response, PDO::PARAM_STR)
         ));
 
-
         $idPossibleResponse = $this->connection->getResults()[0][0];
 
         $query = "INSERT INTO Reference(possibleResponse, keyword) VALUES(:possibleResponse, :keyword)";
@@ -56,11 +63,11 @@ class GatewayForm
         ));
     }
 
-    public function deleteKeywordFromQuestion(string $keyword, string $response, Question $question)
+    public function deleteKeywordFromQuestion(string $keyword, string $response, Question $question): void
     {
         $query = "SELECT pr.id FROM Propose p, PossibleResponse r WHERE p.question = :id AND p.possibleResponse = pr.id AND pr.content = :response";
         $this->connection->executeQuery($query, array(
-            ':id' => array($question->getId(), PDO::PARAM_STR),
+            ':id' => array($question->getId(), PDO::PARAM_INT),
             ':response' => array($response, PDO::PARAM_STR)
         ));
 
@@ -69,7 +76,34 @@ class GatewayForm
         $query = "DELETE FROM Reference WHERE response = :idResponse AND keyword = :idKeword";
         $this->connection->executeQuery($query, array(
             ':idResponse' => array($idPossibleResponse, PDO::PARAM_INT),
-            ':idKeword' => array($keyword->getId(), PDO::PARAM_INT)
+            ':idKeword' => array($keyword, PDO::PARAM_INT)
+        ));
+    }
+
+    public function updateTitleToForm(string $title, Form $form): void
+    {
+        $query = "UPDATE Form SET title = :title WHERE id = :id";
+        $this->connection->executeQuery($query, array(
+            ':title' => array($title, PDO::PARAM_STR),
+            ':id' => array($form->getId(), PDO::PARAM_INT)
+        ));
+    }
+
+    public function updateDescriptionToForm(string $description, Form $form): void
+    {
+        $query = "UPDATE Form SET title = :title WHERE description = :description";
+        $this->connection->executeQuery($query, array(
+            ':description' => array($description, PDO::PARAM_STR),
+            ':id' => array($form->getId(), PDO::PARAM_INT)
+        ));
+    }
+
+    public function deleteDescriptionToForm(Form $form): void
+    {
+        $query = "UPDATE Form SET title = :title WHERE description = :description";
+        $this->connection->executeQuery($query, array(
+            ':description' => array('', PDO::PARAM_STR),
+            ':id' => array($form->getId(), PDO::PARAM_INT)
         ));
     }
 }
\ No newline at end of file
diff --git a/Source/API/script/Gateway/GatewayKeyword.php b/Source/API/script/Gateway/GatewayKeyword.php
index 5068a8d..75e4a44 100644
--- a/Source/API/script/Gateway/GatewayKeyword.php
+++ b/Source/API/script/Gateway/GatewayKeyword.php
@@ -14,7 +14,7 @@ class GatewayKeyword
         $this->connection = connect();
     }
 
-    public function insertKeyword(Keyword $keyword)
+    public function insertKeyword(Keyword $keyword): void
     {
         $query = "INSERT INTO Keyword(id, word) VALUES(:id, :word)";
         $this->connection->executeQuery($query, array(
@@ -23,7 +23,7 @@ class GatewayKeyword
         ));
     }
 
-    public function deleteKeyword(Keyword $keyword)
+    public function deleteKeyword(Keyword $keyword): void
     {
         $query = "DELETE FROM Keyword WHERE id = :id";
         $this->connection->executeQuery($query, array(
diff --git a/Source/API/script/Gateway/GatewayQuestion.php b/Source/API/script/Gateway/GatewayQuestion.php
index bfc9aac..aeffcdb 100644
--- a/Source/API/script/Gateway/GatewayQuestion.php
+++ b/Source/API/script/Gateway/GatewayQuestion.php
@@ -95,7 +95,7 @@ class GatewayQuestion
         ));
     }
 
-    public function getAllQuestions(string $idForm): array //revoie un array contenant trois qui pour chaque indice commun de ces 3 array une question, sa liste de reponse possible et sa liste de keyword associer au réponse. les deux autres sont null si c'est une textBox
+    public function getAllQuestions(string $idForm): array //renvoie un array contenant trois qui pour chaque indice commun de ces 3 array une question, sa liste de reponse possible et sa liste de keyword associer au réponse. les deux autres sont null si c'est une textBox
     {
         $query = "SELECT * FROM Question WHERE form = :form";
         $this->connection->executeQuery($query, array(