singleton pour la connection PDO

src/Pdo/PdoConnect.php

@@ -0,0 +1,45 @@
+<?php
+
+namespace App\Pdo;
+
+use PDO;
+use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
+
+class PdoConnect extends AbstractController
+{
+    /**
+     * @var Singleton
+     * @access private
+     * @static
+     */
+    private static $_instance = null;
+    /**
+    * Constructeur de la classe
+    *
+    * @param void
+    * @return void
+    */
+    private function __construct() {
+    }
+    
+    /**
+     * Méthode qui crée l'unique instance de la classe
+     * si elle n'existe pas encore puis la retourne.
+     *
+     * @param void
+     * @return PdoConnect
+     */
+    public static function getInstance() {
+    
+        if(is_null(self::$_instance)) {
+        self::$_instance = new PdoConnect();  
+        }
+    
+        return self::$_instance;
+    }
+
+    public function connect($urlDatabase, $dbUser, $dbPassword)
+    {
+        return new PDO($urlDatabase, $dbUser, $dbPassword);
+    }
+}

src/Services/PdoServices.php

@@ -2,6 +2,7 @@
 
 namespace App\Services;
 
+use App\Pdo\PdoConnect;
 use PDO;
 use PDOException;
 use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
@@ -16,15 +17,11 @@ class PdoServices extends AbstractController
         $this->params = $params;
     }
 
-    public function connection()
-    {
-        return new PDO($this->params->get('urlDatabase'), $this->params->get('dbUser'), $this->params->get('dbPassword'));
-    }
-
     public function fetchDatas($email)
     {
         try {
-            $dbh = $this->connection();
+            $pdo = PdoConnect::getInstance();
+            $dbh = $pdo->connect($this->params->get('urlDatabase'), $this->params->get('dbUser'), $this->params->get('dbPassword'));
             $query = $dbh->prepare($this->getParameter('queryFetchDatas'));
             $query->execute(['email'=> $email]);
             $datas = $query->fetch(PDO::FETCH_ASSOC);