public function updateAction()
 {
     $article_id = $_POST['id_article'];
     ArticleModel::getArticle($this->pdo, $article_id);
     $result = ArticleModel::getArticle($this->pdo, $article_id);
     if ($_SESSION['id_user'] != $result['id_user']) {
         return json_encode(["error" => "utilisateur"]);
     }
     if (empty($_POST['article_title']) || empty($_POST['article_content'])) {
         return json_encode(["error" => "champs"]);
     }
     ArticleModel::editArticle($this->pdo, $article_id, $_POST['article_content'], $_POST['article_title']);
     return json_encode(['message' => 'update', 'article_id' => $article_id, 'article_title' => $_POST['article_title'], 'article_content' => $_POST['article_content']]);
 }